Overlock Serger Product
An industrial overlock (serger) sewing machine: a servo-driven main shaft drives twin needles, upper and lower loopers and a trimming knife to wrap and finish a seam edge in one pass. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
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Bill of materials
15 top-level lines · 72 rows shown · 96 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Cast Body & Bed 4 parts | overlock-serger-body | 1× | 1 | 4 | assembly |
| 1.1 | Cast Iron Body & Bed | overlock-serger-cast-bed | 1× | 1 | — | part |
| 1.2 | Cover & Cloth Plate Set | overlock-serger-cover-set | 1× | 1 | — | part |
| 1.3 | Throat Needle Plate | overlock-serger-needle-plate | 1× | 1 | — | part |
| 1.4 | Fastener Set | fastener-set | 1× | 1 | — | part |
| 2 | Servo Drive Motor 5 parts | overlock-serger-motor | 1× | 1 | 25 | assembly |
| 2.1 | Stator Assembly 3 parts | stator-assembly | 1× | 1 | 3 | assembly |
| 2.1.1 | Stator Core (laminations) | stator-core | 1× | 1 | — | part |
| 2.1.2 | Copper Winding | copper-winding | 1× | 1 | — | part |
| 2.1.3 | Slot Insulation | stator-insulation | 1× | 1 | — | part |
| 2.2 | Rotor Assembly 4 parts | rotor-assembly | 1× | 1 | 19 | assembly |
| 2.2.1 | Rotor Shaft | rotor-shaft | 1× | 1 | — | part |
| 2.2.2 | Rotor Core | rotor-core | 1× | 1 | — | part |
| 2.2.3 | Neodymium Magnet | neodymium-magnet | 16× | 16 | — | part |
| 2.2.4 | Ball Bearing | ball-bearing | 1× | 1 | — | part |
| 2.3 | Motor Housing | motor-housing | 1× | 1 | — | part |
| 2.4 | Drive Belt | drive-belt | 1× | 1 | — | part |
| 2.5 | Drive Pulley & Handwheel | overlock-serger-drive-pulley | 1× | 1 | — | part |
| 3 | Main Drive Shaft 3 parts | overlock-serger-main-shaft | 1× | 1 | 5 | assembly |
| 3.1 | Main Shaft | overlock-serger-shaft | 1× | 1 | — | part |
| 3.2 | Ball Bearing | ball-bearing | 3× | 3 | — | part |
| 3.3 | Helical Gear Pair | gear-pair | 1× | 1 | — | part |
| 4 | Needle Mechanism 3 parts | overlock-serger-needle-mech | 1× | 1 | 4 | assembly |
| 4.1 | Needle Bar & Clamp | overlock-serger-needle-bar | 1× | 1 | — | part |
| 4.2 | Overlock Needle | overlock-serger-needle | 2× | 2 | — | part |
| 4.3 | Thread Take-Up Lever | overlock-serger-take-up | 1× | 1 | — | part |
| 5 | Looper Mechanism 3 parts | overlock-serger-looper-mech | 1× | 1 | 8 | assembly |
| 5.1 | Upper Looper | overlock-serger-upper-looper | 1× | 1 | — | part |
| 5.2 | Lower Looper | overlock-serger-lower-looper | 1× | 1 | — | part |
| 5.3 | Looper Drive Linkage 3 parts | overlock-serger-looper-drive | 1× | 1 | 6 | assembly |
| 5.3.1 | Looper Drive Cam | overlock-serger-looper-cam | 2× | 2 | — | part |
| 5.3.2 | Looper Connecting Link | overlock-serger-looper-link | 2× | 2 | — | part |
| 5.3.3 | Ball Bearing | ball-bearing | 2× | 2 | — | part |
| 6 | Trimming Knife Mechanism 3 parts | overlock-serger-knife-mech | 1× | 1 | 4 | assembly |
| 6.1 | Upper Trimming Knife | overlock-serger-upper-knife | 1× | 1 | — | part |
| 6.2 | Lower Trimming Knife | overlock-serger-lower-knife | 1× | 1 | — | part |
| 6.3 | Knife Holder | overlock-serger-knife-holder | 2× | 2 | — | part |
| 7 | Differential Feed Mechanism 3 parts | overlock-serger-feed-mech | 1× | 1 | 4 | assembly |
| 7.1 | Main Feed Dog | overlock-serger-main-feed-dog | 1× | 1 | — | part |
| 7.2 | Differential Feed Dog | overlock-serger-diff-feed-dog | 1× | 1 | — | part |
| 7.3 | Feed Bar Lifter | overlock-serger-feed-lifter | 2× | 2 | — | part |
| 8 | Presser Foot Mechanism 3 parts | overlock-serger-presser-mech | 1× | 1 | 3 | assembly |
| 8.1 | Presser Foot | overlock-serger-presser-foot | 1× | 1 | — | part |
| 8.2 | Presser Lift Lever | overlock-serger-presser-lift | 1× | 1 | — | part |
| 8.3 | Coil Spring | coil-spring | 1× | 1 | — | part |
| 9 | Thread Path 4 parts | overlock-serger-thread-path | 1× | 1 | 15 | assembly |
| 9.1 | Thread Cone Stand | overlock-serger-thread-stand | 1× | 1 | — | part |
| 9.2 | Thread Cone | overlock-serger-thread-cone | 4× | 4 | — | part |
| 9.3 | Tension Disc & Dial | overlock-serger-tension-disc | 4× | 4 | — | part |
| 9.4 | Thread Guide / Eyelet | overlock-serger-thread-guide | 6× | 6 | — | part |
| 10 | Stitch Adjusters 2 parts | overlock-serger-adjusters | 1× | 1 | 2 | assembly |
| 10.1 | Stitch Length Dial | overlock-serger-stitch-length-dial | 1× | 1 | — | part |
| 10.2 | Differential Feed Dial | overlock-serger-differential-dial | 1× | 1 | — | part |
| 11 | Lubrication System 3 parts | overlock-serger-lubrication | 1× | 1 | 5 | assembly |
| 11.1 | Oil Pump | overlock-serger-oil-pump | 1× | 1 | — | part |
| 11.2 | Oil Seal | oil-seal | 3× | 3 | — | part |
| 11.3 | Oil Reservoir | overlock-serger-oil-reservoir | 1× | 1 | — | part |
| 12 | Control System 5 parts | overlock-serger-control | 1× | 1 | 14 | assembly |
| 12.1 | Control Board 3 parts | overlock-serger-control-board | 1× | 1 | 5 | assembly |
| 12.1.1 | Bare PCB | pcb-bare | 1× | 1 | — | part |
| 12.1.2 | Microcontroller | mcu | 1× | 1 | — | part |
| 12.1.3 | Connector | connector | 3× | 3 | — | part |
| 12.2 | LCD Panel | lcd-panel | 1× | 1 | — | part |
| 12.3 | Foot Pedal 3 parts | overlock-serger-foot-pedal | 1× | 1 | 3 | assembly |
| 12.3.1 | Bare PCB | pcb-bare | 1× | 1 | — | part |
| 12.3.2 | Pedal Position Sensor | overlock-serger-pedal-sensor | 1× | 1 | — | part |
| 12.3.3 | Connector | connector | 1× | 1 | — | part |
| 12.4 | Needle Position Sensor | overlock-serger-needle-position-sensor | 1× | 1 | — | part |
| 12.5 | Connector | connector | 4× | 4 | — | part |
| 13 | Thread Chain Cutter | overlock-serger-chain-cutter | 1× | 1 | — | part |
| 14 | Wire Bundle | wire-bundle | 1× | 1 | — | part |
| 15 | Fastener Set | fastener-set | 1× | 1 | — | part |
Sourcing — likely vendors
Companies that make this · indicative price $10k–$1M · MOQ & lead are typical| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| 🇨🇭Rieter rieter.com ↗ | Winterthur, CH | Spinning machinery | 10 units | 14–24 wks |
| truetzschler.com ↗ | Mönchengladbach, DE | Textile machinery | 10 units | 14–24 wks |
| 🇧🇪Picanol picanol.be ↗ | Ypres, BE | Weaving machines | 10 units | 14–24 wks |
| karlmayer.com ↗ | Obertshausen, DE | Warp knitting machines | 10 units | 14–24 wks |
| 🇨🇭Saurer saurer.com ↗ | Arbon, CH | Spinning & embroidery | 10 units | 14–24 wks |