Industrial single-needle lockstitch sewing workstation manufacturing

1. Scope and Applicability

Complete electrically driven industrial single-needle flatbed lockstitch sewing workstations in one declared supplied configuration: sewing head, installed drive and control, table top and load-bearing stand, foot control, thread stand, required fitted guards and retained lubricants. Direct-drive and belt-drive configurations are separate variants. This narrower category covers only this manufacturing boundary within CPC44621, not all industrial sewing machines.

Household and book-sewing machines; overlock, coverstitch, chainstitch, embroidery, buttonhole and programmable pattern machines; knitting/weaving machinery; head-only delivery, independently sold table/stand/motor/control or spare parts; customer sewing production, operating electricity, textile output, maintenance/lubrication replenishment, lifetime needle replacement and end-of-life. Installation/service contracts and factory building manufacture are outside this module. Extra spare needles/bobbins and separately bottled accessories require separate supplied-product accounting.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.metal-products-machinery-and-equipment.special-purpose-machinery.industrial-sewing-machinery
classification_refs	CPC:3.0:44621; narrower
covered_products	Declared complete single-needle flatbed industrial lockstitch workstation, electric drive, exact new accepted supply.
excluded_products	Household and book-sewing machines; overlock, coverstitch, chainstitch, embroidery, buttonhole and programmable pattern machines; knitting/weaving machinery; head-only delivery, independently sold table/stand/motor/control or spare parts; customer sewing production, operating electricity, textile output, maintenance/lubrication replenishment, lifetime needle replacement and end-of-life. Installation/service contracts and factory building manufacture are outside this module. Extra spare needles/bobbins and separately bottled accessories require separate supplied-product accounting.
representative_product	One accepted workstation with needle-bar/rotary-hook/bobbin/feed-dog/presser-foot system, matched drive/control and complete table/stand/foot-control/thread-stand/guard supply. A direct-drive unit and a belt-driven unit are distinct configurations, not one interchangeable BOM.
production_route	Receipt of prepared castings/stock or finished components; actual machining and finishing if performed; sewing-head and workstation assembly; adjustment/testing/release; actual packing. Supplier foundry, heat treatment, motor winding and electronic-board manufacture are upstream unless explicitly expanded with measured inventories.
market_state	New accepted complete workstation ready for shipment; all required supplied parts and retained fluids included, transport packaging and test textiles excluded from net mass.

3. Reference Flow

Field	Value
What	Manufacture and delivery of the declared accepted complete workstation, not sewing of cloth or a seam service.
How much	1 kg accepted net complete workstation in one configuration; a normalized share of the whole machine, not a kilogram component independently able to sew.
How well	Conforms to released BOM/drawings and current signed model acceptance plan: mechanism timing, feed/needle/hook compatibility, stitch formation at specified test conditions, drive/control function, guards and electrical conformity. No universal sewing speed, stitch length, power, thread tension or service life is set.
How long or cycle	One manufacture/acceptance cycle; customer operating time, lifetime seams and needle replacement excluded.
reference_flow_link	finished_machine

Field	Value
Reference amount	1
Reference product flow	Sewing machines, except book sewing machines and household sewing machines 9744fffe-2c8c-4fb9-b05f-486605652e8c
Reference flow property	Mass 93a60a56-a3c8-11da-a746-0800200b9a66
Reference unit group	Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
Reference unit	kg
Required qualifiers	model/BOM revision; serial/batch; single-needle flatbed lockstitch; direct/belt drive and motor/control inclusions; needle system/hook/feed/presser configuration; table/stand/pedal/thread stand/guards; body/shaft grades and supplied states; retained lubricant grade/mass and dry/filled shipping; measured net M; actual test fabric/thread/conditions/pass criteria; site/period; make-or-buy and conditional operations; supplier/upstream/transport links; packaging/extras exclusion

Declare every required qualifier in dataset metadata/reference comments. The broad public product identity is narrowed to the exact complete workstation supplied. Normalization by mass alone does not make direct-drive/belt-drive machines or different sewing functions equivalent.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_mass	reference product	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	M = accepted net mass of one complete machine of the same configuration in kg; collect using cp_mass.
electricity_units	fabrication_electricity; finishing_electricity; assembly_electricity; acceptance_electricity	Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66	MJ	Convert measured kWh by3.6 MJ/kWh before normalization; retain actual below1kV meter/provider boundary. Other utility carriers are separate exchanges.

Weigh the complete assembled accepted workstation, including all required delivered table/stand/drive/control/guards and retained lubricant, before transport disassembly. Traceable component weigh records reconcile dismantled shipment back to this M; they do not replace complete weighing. Exclude shipping braces/packaging, spare sets and test fabric/thread. Do not count a head weight as workstation M. For dry delivery disclose dry retained state; separately bottled oil is a separate supplied product. Oil volume records require measured same-temperature density or direct mass weighing before kg accounting; no generic density or per-machine weight is given. Count accepted machines of the same configuration and period; M and numerator q_item must match.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	One manufacturer receives stock/castings or finished components; this is not an assumed raw-ore-to-machine boundary.
starting_condition_role	Declared manufacturing foreground module starting point.
product_classification_scope	Complete electrically driven industrial single-needle flatbed lockstitch sewing workstations in one declared supplied configuration: sewing head, installed drive and control, table top and load-bearing stand, foot control, thread stand, required fitted guards and retained lubricants. Direct-drive and belt-drive configurations are separate variants. This narrower category covers only this manufacturing boundary within CPC44621, not all industrial sewing machines.
recursive_input_rule	Stop bought-in head/body/motor/control at documented supplied boundary; contained needle/hook/shaft/bearings/circuitry/coating/oil replace separate inputs. Site-made internal transfers are not extra purchases. Complete incoming head still needs full supply and mass reconciliation.
upstream_dataset_requirement	Expanded assessment links actual compatible component/material suppliers, outsourced operations, inbound transport and waste treatment. Missing identity/provider/amount are distinct gaps; UUID supplies no impact inventory.
disclosure	Declare site/period, full supplied workstation, dry/filled state, make-or-buy, supplier processes, actual utilities/consumables, test media/rework, packing and capital/bench treatment. This receipt-to-dispatch module alone is not complete cradle-to-gate coverage.

rule_id	applies_to	rule	source_ids
boundary_supply	workstation	JUKI installation sections show table seating, oil pan, belt cover and thread stand; Brother shows direct-drive head/motor and control connections. These historical examples establish configuration distinctions only. Current supply list governs table/stand/motor/control inclusions.	juki-ddl8700; brother-s7100a
boundary_oil	lubrication	Actual factory fill/loss is recorded separately from retained delivered oil and user replenishment. Neither JUKI operating break-in instructions nor Brother approximate oil amount is a universal manufacturing test or factor.	juki-ddl8700; brother-s7100a
boundary_downstream	customer_use	Exclude customer seam-production textiles/energy and operating life. Factory stitch-test consumption and measured manufacturing emissions are included only when actually incurred.

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
fabrication	Body and shaft machining	conditional	Only actual site machining of declared incoming casting/bar; supplier casting and finished-component manufacture are upstream. Add actual coolant, tools, abrasives and other operations before claiming completeness.	foreground_production	per 1 kg reference flow
finishing	Surface cleaning and coating	conditional	Only actual site cleaning/coating with identified formulation and utility carrier; finished supplier coating substitutes this operation. Listed polyester powder and isopropanol are optional examples, not prescribed recipes.	foreground_production	per 1 kg reference flow
assembly	Sewing mechanism and workstation assembly	required	Fit actual needle/rotary hook/bobbin/feed/presser mechanism, drive/control, table/stand/foot control, thread stand and guards within declared supply. Reconcile make-or-buy and lubricant retained state.	foreground_production	per 1 kg reference flow
acceptance	Adjustment, testing and release	required	Use current model-specific factory test plan, including actual stitch testing when prescribed; record test fabric/thread, energy, rejects and rework, then weigh the accepted complete workstation.	foreground_production	per 1 kg reference flow
packing	Transport packing and dispatch	conditional	Only actual packing/protection; excludes packing from M and reconciles all required delivered parts after any transport disassembly.	foreground_production	per 1 kg reference flow

Each row is one defined exchange. This is an initial collection framework, not a complete universal BOM or a mandatory cast-iron/polyester/solvent recipe. Reconcile actual needle bar, take-up lever, hook shaft, bobbin case, needle plate, feed linkage, bearings, seals, rubber cushions, oil pan/tank, knee lifter, hinge, belt guard, cables, thread trimmer and tension device as separate components if not contained in bought-in assemblies. Add each actual omitted material/chemical, utility carrier, tool consumable, effluent or waste species before claiming completeness. Substitution requires a separate exact flow, not a multi-material placeholder. Preserve applicable, not-applicable, measured zero and missing distinctly.

Process: Body and shaft machining (fabrication)

Only actual site machining of declared incoming casting/bar; supplier casting and finished-component manufacture are upstream. Add actual coolant, tools, abrasives and other operations before claiming completeness.

Inputs

Product flows

Grey cast-iron sewing-machine body casting (iron_head_blank)

Conditional bought-in grey cast-iron body blank for actual site machining, grade and cast state recorded; omit when a finished head/body is purchased. Other alloys require separate rows.

• Selected flow: Grey cast-iron sewing-machine body casting
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_fabrication.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_fabrication

Carbon-steel shaft bar blank (steel_shaft_blank)

Conditional one specified carbon-steel bar grade for a site-machined main shaft; no alloy substitution or assumed hardening.

• Selected flow: Carbon-steel shaft bar blank
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_fabrication.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_fabrication

Alternating current (fabrication_electricity)

Conditional metered machining/extraction demand, delivered grid AC below1kV, consumption mix; upstream generation emissions not factory emissions.

• Selected flow: Alternating current 50657322-939c-4829-a87b-47c093bfa6a7
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_fabrication.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_fabrication

Outputs

Waste flows

Post-industrial steel scrap (steel_scrap)

Only separately weighed dry carbon-steel machining scrap leaving without further treatment; cast-iron chips and oily swarf are separate. No automatic recycling credit.

• Selected flow: Post-industrial steel scrap c143745d-be4f-4d8f-b403-2dcbfe685349
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_fabrication.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_fabrication

Grey cast-iron machining chips (iron_chips)

Conditional identified dry grey-iron chips; weigh separately from steel scrap and collected dust.

• Selected flow: Grey cast-iron machining chips
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_fabrication.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_fabrication

Captured carbon-steel grinding dust (captured_steel_dust)

Only actual captured dry steel grinding dust sent to documented handler; neither airborne emission nor cast-iron waste.

• Selected flow: Captured carbon-steel grinding dust
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_fabrication.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_fabrication

Elementary flows

Particulate matter, particle size unspecified (particulate_air)

Conditional measured post-control outdoor air particulate mass, unspecified subcompartment and particle size only. Particle fractions require distinct identities; collection efficiency alone gives no emission.

• Selected flow: Particulate matter, particle size unspecified 0ce3dedb-caca-407b-a856-a90470eb8ec0
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_fabrication.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_fabrication

Process: Surface cleaning and coating (finishing)

Only actual site cleaning/coating with identified formulation and utility carrier; finished supplier coating substitutes this operation. Listed polyester powder and isopropanol are optional examples, not prescribed recipes.

Inputs

Product flows

Powder Coating (polyester_powder)

Only actual declared polyester powder formulation for site-coated body/stand; recipe and SDS, returns and recovered powder recorded. Not required when supplier coating is complete.

• Selected flow: Powder Coating 6e3010f9-fbd3-48f6-95fc-c1b38d2800d2
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_finishing.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_finishing

Liquid isopropanol cleaning solvent (isopropanol_liquid)

Optional actual factory surface-cleaning pure propan-2-ol CAS67-63-0; verify purity and liquid supplied state. Aqueous blends need separate composition-specific rows.

• Selected flow: Liquid isopropanol cleaning solvent
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_finishing.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_finishing

Alternating current (finishing_electricity)

Conditional measured cleaning/powder spraying and electric cure demand below1kV; actual gas/other curing carrier requires its own added row.

• Selected flow: Alternating current 50657322-939c-4829-a87b-47c093bfa6a7
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_finishing.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_finishing

Outputs

Waste flows

Discarded polyester powder-coating overspray (polyester_powder_waste)

Conditional unreused dry polyester powder overspray sent off site, actual formulation and handler declared; internally recovered powder is not external waste.

• Selected flow: Discarded polyester powder-coating overspray
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_finishing.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_finishing

Cotton wiping cloth contaminated with isopropanol (ipa_wipes)

Optional actual cotton wiping cloth leaving as contaminated solid waste; wet mass, solvent loading and handler recorded; other cloth/contaminants split.

• Selected flow: Cotton wiping cloth contaminated with isopropanol
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_finishing.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_finishing

Elementary flows

isopropanol (isopropanol_air)

Only measured propan-2-ol CAS67-63-0 released outdoors after controls, air unspecified subcompartment; not total VOC, indoor exposure or liquid effluent. No default evaporation rate.

• Selected flow: isopropanol fe0acd60-3ddc-11dd-a843-0050c2490048
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_finishing.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_finishing

Process: Sewing mechanism and workstation assembly (assembly)

Fit actual needle/rotary hook/bobbin/feed/presser mechanism, drive/control, table/stand/foot control, thread stand and guards within declared supply. Reconcile make-or-buy and lubricant retained state.

Inputs

Product flows

Finished cast-iron sewing-machine body (finished_body)

One supplied finished body with alloy/coating/contained parts declared, alternative to site-made body; exclude duplicated casting/coating. No complete head counted as body only.

• Selected flow: Finished cast-iron sewing-machine body
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Finished steel sewing-machine main shaft (main_shaft)

One actual specified finished main shaft, purchased only when not made under fabrication; included bearings/gear declared, no mixed shaft set.

• Selected flow: Finished steel sewing-machine main shaft
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Steel rotary sewing hook (rotary_hook)

One finished rotary hook of actual alloy/coating and supplied assembly boundary, not textile/clothing hook; contained bobbin case not duplicated.

• Selected flow: Steel rotary sewing hook
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Steel industrial machine-sewing needle (needle)

Fitted actual machine needle system/size/alloy/coating; hand sewing needle category rejected. Extra spare needles outside M recorded as separately supplied extras.

• Selected flow: Steel industrial machine-sewing needle
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Steel sewing bobbin (bobbin)

One fitted steel bobbin, actual alloy and tare; exclude test thread and spare bobbins from M.

• Selected flow: Steel sewing bobbin
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Steel sewing-machine presser foot (presser_foot)

One fitted specified steel presser foot and finish; other attachment variants separate.

• Selected flow: Steel sewing-machine presser foot
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Steel sewing-machine feed dog (feed_dog)

One fitted steel feed dog of specified geometry/grade, not a complete feeder.

• Selected flow: Steel sewing-machine feed dog
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

AC servo motor for sewing drive (servo_motor)

One declared AC servo motor, direct or belt-driven connection and included encoder/drive boundary documented. Other motor architectures need separate rows.

• Selected flow: AC servo motor for sewing drive
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Sewing-machine electronic control box (control_box)

One finished control box with electronics and input voltage specified; distinguish motor-integrated driver to avoid duplicate circuitry.

• Selected flow: Sewing-machine electronic control box
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Laminated plywood sewing-machine table top (table_top)

Only actual laminated plywood finished table top, species/ply/laminate/finish and cut-out declared; not unspecified plywood stock or an assumed40mm thickness. Other tabletop types replace this row.

• Selected flow: Laminated plywood sewing-machine table top
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Finished steel sewing-machine table stand (steel_stand)

One actual steel load-bearing table stand with finish and fitted members recorded; table top and pedal counted only if not contained.

• Selected flow: Finished steel sewing-machine table stand
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Sewing-machine foot-control pedal (pedal)

One fitted foot-control pedal with actual mechanical/electrical linkage boundary; separate from required table stand.

• Selected flow: Sewing-machine foot-control pedal
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Sewing-machine thread stand (thread_stand)

One fitted thread stand, actual pole/base/tray composition and supply boundary declared; spools/test thread excluded from its tare.

• Selected flow: Sewing-machine thread stand
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Conveyor or transmission belts or belting, of vulcanized rubber (rubber_belt)

Only one specified finished vulcanized-rubber V-belt for actual belt drive; omit for direct drive. No leather/conveyor belt or uncured rubber substitute.

• Selected flow: Conveyor or transmission belts or belting, of vulcanized rubber 1e587e97-03a2-4c50-8226-f8446a1dd1d9
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Steel fasteners (steel_screws)

One identified steel screw specification at a time, coating/dimensions and supplied mass stated; nuts/washers/different screws need their own rows.

• Selected flow: Steel fasteners ebfe08f5-42c8-484e-b39a-684a35981c24
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Mineral sewing-machine lubricating oil (lubricating_oil)

Only actual mineral-based manufacturer-approved oil grade factory filled/consumed, weighed kg; retained oil included once in M. Record sold dry, separately bottled oil and purge separately; no historic150ml default.

• Selected flow: Mineral sewing-machine lubricating oil
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Alternating current (assembly_electricity)

Measured below1kV assembly-tool and connection demand; bought-in motor/control manufacture outside site boundary.

• Selected flow: Alternating current 50657322-939c-4829-a87b-47c093bfa6a7
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly

Process: Adjustment, testing and release (acceptance)

Use current model-specific factory test plan, including actual stitch testing when prescribed; record test fabric/thread, energy, rejects and rework, then weigh the accepted complete workstation.

Inputs

Product flows

Cotton Fabric (test_cotton)

Only actual100% woven cotton factory stitch-test fabric if compatible with selected identity and current test plan; actual other test textiles add distinct rows. Reused cloth is an internal loop.

• Selected flow: Cotton Fabric
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_acceptance.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_acceptance

Polyester machine-sewing thread (test_thread)

Actual specified100% polyester sewing thread, top and bobbin net new consumption separately metered when different; not polyester fiber or non-sewing yarn.

• Selected flow: Polyester machine-sewing thread
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_acceptance.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_acceptance

Alternating current (acceptance_electricity)

Actual below1kV bench motor/control and measured setup/rework/testing demand; no nameplate-times-assumed duration or customer use imported.

• Selected flow: Alternating current 50657322-939c-4829-a87b-47c093bfa6a7
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_acceptance.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_acceptance

Outputs

Product flows

Sewing machines, except book sewing machines and household sewing machines (finished_machine)

1kg accepted complete single-needle flatbed industrial lockstitch workstation, actual head/drive/control/table/stand/pedal/thread stand/guards and retained oil, using measured net M.

• Selected flow: Sewing machines, except book sewing machines and household sewing machines 9744fffe-2c8c-4fb9-b05f-486605652e8c
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: 1 kg
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_mass

Waste flows

Discarded cotton stitch-test swatches containing polyester thread (test_swatches)

One defined removed stitched cotton test specimen with quantified polyester thread fraction, not general textile waste; separate from unused cloth returns.

• Selected flow: Discarded cotton stitch-test swatches containing polyester thread
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_acceptance.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_acceptance

Process: Transport packing and dispatch (packing)

Only actual packing/protection; excludes packing from M and reconciles all required delivered parts after any transport disassembly.

Inputs

Product flows

Polyethylene film (pe_film)

Actual PE film formulation/thickness and net issues, unfilled film mass; packaging excluded from M.

• Selected flow: Polyethylene film e64eb06c-6dc9-45f1-b003-3dc6c44b27e2
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_packing.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packing

Corrugated cardboard (corrugated_board)

Only actual C/E/F flute, fiber≥80%, recycled-containing multilayer board satisfying public identity; verify specification rather than infer all boxes fit. Other boards separate.

• Selected flow: Corrugated cardboard 8bde297e-98df-463f-bcb4-0db52bf6e0b5
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_packing.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow; collected per one accepted finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packing

7. Allocation and Co-product Handling

rule_id	applies_to	rule	source_ids
allocation_direct	manufacturing	Prefer serial/work-order issues and submeters. Under cp_allocation partition shared machining, extraction, cure and test-bench demand by measured causal demand or measured load and time; justify each driver and reconcile allocated plus excluded consumption to the total. No fixed share or universal mass allocation.
allocation_variants	configurations	Keep drive/head/table/test configurations separate; machine count alone is not a causal driver for unlike machining or test demands. Any fallback mass/economic method needs measured justification, sensitivity and explicit review.
allocation_waste	scrap_and_tests	Track actual scrap/test specimen outputs without automatic avoided-steel/textile credit. Valid component returns and internally reused test cloth are internal loops, not new purchases and external co-products. If an independently marketable output exists, declare its quality/amount and justified co-product treatment.

8. Foreground Data Collection, Calculation, and Quality Rules

Keep matched stock issues/returns, BOM and make-or-buy revisions, work orders, accepted counts, bench records, measured utilities and waste dispatches for the same site/configuration/period. Use net new test cloth/thread rather than gross repeated passes; remove test specimens before M weighing. Record dry versus filled shipping and purge separately. No manufacturer catalogue number replaces a measured production amount.

Data Collection Protocols

protocol_id	process_id	flow_role	record_type	raw_fields	collection_method	unit	frequency	temporal_coverage	site_scope	aggregation_rule	quality_evidence
cp_mass	acceptance	finished_machine	measurement	model; configuration; serial number; accepted net mass M	Weigh the accepted complete machine on a calibrated scale, excluding transport packaging; reconcile the same configuration and acceptance record.	kg	each accepted serial/configuration	same manufacturing period	same manufacturer and fitted supply boundary	accepted net mass per machine	calibration; complete supply BOM; retained fill; signed release
cp_fabrication	fabrication	each atomic row in this process	measurement	casting/bar grade and supplied state; net issues/returns; actual machine-tool time/load; kWh; dry steel/iron chip masses; capture and outlet PM monitoring; coolant/tool records	Weigh each stock/return/scrap separately; meter actual machining demand. Measure outlet particulate concentration with matched standard-condition dry gas flow/time, controls and particle-size basis; document uncertainty, no assumed release fraction.	kg; MJ	each work order/batch/test; monthly reconciliation	one complete declared production year or justified shorter complete batch; matched accepted count	same site/configuration; outsourcing disclosed	attributable exchange amount / accepted machines	calibration; supplier specification; stock/count closure; missing records
cp_finishing	finishing	each atomic row in this process	measurement	polyester powder formulation/SDS; net issues/recovery; liquid isopropanol purity/mass; kWh; cure route; cotton-wipe wet mass; unreused overspray; measured CAS-specific air release	Weigh each chemical and waste; meter actual route and shared demand. Measure CAS-specific post-control release or a validated matched solvent balance with liquid/solid retention and recovery; total VOC cannot be labelled isopropanol.	kg; MJ	each work order/batch/test; monthly reconciliation	one complete declared production year or justified shorter complete batch; matched accepted count	same site/configuration; outsourcing disclosed	attributable exchange amount / accepted machines	calibration; supplier specification; stock/count closure; missing records
cp_assembly	assembly	each atomic row in this process	measurement	model/BOM/serial; supplied component boundaries; net issues/returns; needle/hook/feed matching; drive/control/table/stand mass; oil grade and filled/dry state; retained oil mass; kWh	Trace each actual supplied component and weigh mass; avoid motor-contained electronics/head-contained parts duplication. Weigh factory oil issues/returns/retained fill separately and reconcile empty/filled shipping; meter tools and connections.	kg; MJ	each work order/batch/test; monthly reconciliation	one complete declared production year or justified shorter complete batch; matched accepted count	same site/configuration; outsourcing disclosed	attributable exchange amount / accepted machines	calibration; supplier specification; stock/count closure; missing records
cp_acceptance	acceptance	each atomic row in this process	measurement	serial/configuration; current signed test plan; needle system; fabric fiber/weave/finish and thread specification; stitch quality/timing results; guard/electrical/drive checks; actual test time/kWh; new fabric/thread and removed specimen masses; rejects/rework; M	Record actual model tests and meter setup/rework/test demand; weigh net new test textile consumption and discarded stitched specimens with known composition. Trace reusable cloth inventory separately; no universal stitch speed or operating break-in factor.	kg; MJ	each work order/batch/test; monthly reconciliation	one complete declared production year or justified shorter complete batch; matched accepted count	same site/configuration; outsourcing disclosed	attributable exchange amount / accepted machines	calibration; supplier specification; stock/count closure; missing records
cp_packing	packing	each atomic row in this process	measurement	PE film recipe/thickness and mass; board flute/fiber/recycled specification and mass; issues/returns; serial/dispatch complete-part checklist	Weigh each packing material separately and exclude from M; reconcile all required workstation parts after disassembly. Actual additional foam/timber/tape materials each need an added atomic row.	kg	each work order/batch/test; monthly reconciliation	one complete declared production year or justified shorter complete batch; matched accepted count	same site/configuration; outsourcing disclosed	attributable exchange amount / accepted machines	calibration; supplier specification; stock/count closure; missing records
cp_allocation	manufacturing	shared_demand	measurement	total utility; submeter demand; measured load/time; work orders/products served; excluded consumption	Submeter or measure causal shared load and actual operating time; justify exchange-specific driver and reconcile against total supply.	MJ; h	each shared batch; monthly reconciliation	same manufacturing period	all served configurations and excluded operations	partition by measured causal demand; attributable amount / accepted machines	closure; submeter comparison; uncertainty; sensitivity

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
normalize_mass	iron_head_blank; steel_shaft_blank; fabrication_electricity; steel_scrap; iron_chips; captured_steel_dust; particulate_air; polyester_powder; isopropanol_liquid; finishing_electricity; polyester_powder_waste; ipa_wipes; isopropanol_air; finished_body; main_shaft; rotary_hook; needle; bobbin; presser_foot; feed_dog; servo_motor; control_box; table_top; steel_stand; pedal; thread_stand; rubber_belt; steel_screws; lubricating_oil; assembly_electricity; test_cotton; test_thread; acceptance_electricity; test_swatches; pe_film; corrugated_board	q_ref = q_item / M; q_item = exchange amount per one accepted finished machine; q_ref = exchange amount per 1 kg reference flow.	q_item; M; cp_mass	q_ref

First derive q_item from matched configuration/period: net issues after valid returns, attributable utility, or actual external waste/species divided by accepted machine count. Carry reject/rework burdens to accepted output. Apply the stated division by measured M, preserving kg or MJ exchange numerators; no arbitrary density or nameplate-times-duration. Keep allocation and unit conversions separately traceable. Aggregate compatible variants only after configuration-specific normalization with disclosed mass weighting and scope.

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
quality_identity	flows	Verify supplied material/grade/phase/composition, reference property/unit, route/geography and exact environmental medium. Flow identity does not establish supplier impacts or amount.	supplier sheets; identity/property/unit audit
quality_complete	workstation	Reconcile fitted supply and retained fluids to measured M, all actual manufacturing consumables/utilities, losses and tests. Do not fill missing part mass from residual.	BOM; calibrated complete weigh; stock balances; signed release
quality_period	records	Disclose representative complete period, site, supplier/outsourcing coverage, route changes, idle/setup demand and uncertainty. Historical manuals provide model cases only, not current LCI or universal tests.	work orders; meter sheets; source limitations
quality_acceptance	release	Retain model-specific stitch-test materials/conditions and signed functional/electrical/guard acceptance. Record false starts and rework; do not infer factory limits from customer operating instructions.	current released test plan; serial result; calibration

9. Validation Rules

rule_id	applies_to	rule	source_ids
validation_reference	finished_machine	Require1kg output, measured cp_mass M for the complete supplied workstation, installed table/stand/drive/control/guards and retained lubricant. No head-only catalogue mass or test textiles in M.
validation_normalization	inventory	Every applicable non-reference row links normalize_mass and its declared protocol; check denominator direction, exchange units, matching configuration/period and accepted counts.
validation_routes	processes	Match machining/cleaning/coating and direct/belt drive to actual work orders/BOM. Supplier-finished head/body or integrated motor driver must replace contained inputs; missing actual routes remain gaps.
validation_species	elementary_flows	Check measured unspecified-size particulate and CAS67-63-0 isopropanol outdoor-air unspecified subcompartment. Indoor exposure, total VOC, captured dust/wipes and aqueous effluent are different exchanges. No assumed emission fraction.
validation_coverage	dataset	Distinguish measured/calculated/estimated/excluded/not-applicable/missing, reconcile material/output and allocated demand, and disclose unresolved identities/providers. Structural/measurement pass does not approve methodology or establish complete cradle-to-gate coverage.

10. Published Dataset Profile

Field	Value
dataset_role	foreground_manufacturing_module
downstream_use	secondary_dataset; background_dataset
allowed_use	Manufacturing module for exact supplied industrial lockstitch workstation/site/period; expanded assessment only with independently established upstream/transport/treatment coverage.
excluded_use	Customer seam or textile-production service, operating/lifetime energy, generic stitch-machine equivalence, head-only product accounting and unsupported complete cradle-to-gate claims.
required_metadata	PCR id; model/configuration/BOM and supplied head/table/stand/drive/control boundary; measured M/retained oil; test plan/materials; site/period; make-or-buy and routes; suppliers/providers/transport; utilities; packing; allocation and sources/version.
required_quality_disclosure	Primary measured coverage, unresolved identities/amounts/providers, excluded and missing routes, historic source limits, conversion/allocation justification, emissions monitoring, uncertainty and review state.
update_trigger	Supply/BOM/drive/table change; material/coating/oil/test-plan revision; supplier/utility change; new representative period; resolved identity/evidence gap.

11. Data Sources

Source id	Type	Reference	Used for
juki-ddl8700	handbook	JUKI DDL-8700 Instruction Manual English, retained historical edition with PDF modification metadata2013; sections2,3,5,6; PDFpp.3–5, printedpp.1–3. https://www.juki.co.jp/industrial_j/download_j/manual_j/ddl8700/menu/ddl8700/pdf/instruction_eg.pdf	Model-specific table/head/oil-pan, belt cover and thread-stand architecture; no numerical speed, break-in, oil demand, mass, manufacturing route or lifetime inferred.
brother-s7100a	handbook	Brother S-7100A Instruction Manual, retained historical PDF2015 metadata; machine specifications and installation sections2-2 to2-4; PDFpp.11–17, printedpp.1–7. https://download.brother.com/pub/com/ism/pdf/s7100a_in.pdf	Independent maker direct-drive servo, table/head/control connection and oil-tank configuration example. Approximate head weight/oil volume, nameplate power and table thickness are not adopted; current site supply and measured amounts govern.