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Film Unwind

Assembly

Holds the printed film reel and feeds it at controlled tension, with a dancer to absorb the intermittent pull of the bag cycle and a registration eye to align print to bag length. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Film Unwind parts and their functions

5 top-level parts · 38 parts in total · full bill of materials below
Film Unwind parts diagram: 1 reel shaft & chuck, 2 film tension motor, 3 dancer roller, 4 idler roller, 5 print registration eye. 38 parts in 5 top-level items.
Film Unwind parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Reel Shaft & Chuck 2 parts 1× Air-expanding shaft gripping the film reel core.
2 Film Tension Motor 5 parts 1× Servo regulating unwind tension against the dancer.
3 Dancer Roller 3 parts 1× Spring-loaded roller absorbing the step-pull of each bag cycle and reporting tension.
4 Idler Roller 3× Idler/guide rollers
5 Print Registration Eye 1× Photocell reading the print mark so each bag is cut on register.

3D model

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Build & assembly graph

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Bill of materials for Film Unwind

5 top-level lines · 22 rows shown · 38 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Reel Shaft & Chuck 2 parts ffs-reel-shaft 1× 1 4 assembly
1.1 Air-Expanding Chuck ffs-air-chuck 2× 2 · part
1.2 Ball Bearing ball-bearing 2× 2 · part
2 Film Tension Motor 5 parts ffs-tension-motor 1× 1 26 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 Ball Bearing ball-bearing 2× 2 · part
2.5 Oil Seal oil-seal 1× 1 · part
3 Dancer Roller 3 parts ffs-dancer-roller 1× 1 4 assembly
3.1 Idler Roller ffs-roller 1× 1 · part
3.2 Dancer Position Sensor ffs-dancer-sensor 1× 1 · part
3.3 Ball Bearing ball-bearing 2× 2 · part
4 Idler Roller ffs-roller 3× 3 · part
5 Print Registration Eye ffs-registration-eye 1× 1 · part

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Where the film unwind is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Vertical Form-Fill-Seal Machine

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks