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Injection Unit

Assembly

Plasticizes and injects melt: barrel, reciprocating screw, drive and heaters. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Injection Unit parts and their functions

6 top-level parts · 24 parts in total · full bill of materials below
Injection Unit parts diagram: 1 plasticizing barrel, 2 reciprocating screw, 3 screw drive assembly, 4 material hopper, 5 injection nozzle, 6 thermocouple. 24 parts in 6 top-level items.
Injection Unit parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Plasticizing Barrel 3 parts 1× Nitrided steel barrel housing the screw, with feed throat and check ring seat.
2 Reciprocating Screw 1× Nitrided feed/compression/metering screw.
3 Screw Drive Assembly 3 parts 1× Hydraulic motor and reduction gearbox rotating the screw for plasticizing.
4 Material Hopper 1× Stainless gravity-feed pellet hopper with slide-gate shutoff and magnet grate.
5 Injection Nozzle 3 parts 1× Heated tip seating against the sprue bushing to inject melt into the mold.
6 Thermocouple 5× one per heating zone

3D model

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Build & assembly graph

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Bill of materials for Injection Unit

6 top-level lines · 15 rows shown · 24 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Plasticizing Barrel 3 parts injection-molding-machine-barrel 1× 1 7 assembly
1.1 Barrel Tube injection-molding-machine-barrel-tube 1× 1 · part
1.2 Check Ring Valve injection-molding-machine-check-ring 1× 1 · part
1.3 Heating Element heating-element 5× 5 · part
2 Reciprocating Screw injection-molding-machine-screw 1× 1 · part
3 Screw Drive Assembly 3 parts injection-molding-machine-screw-drive 1× 1 7 assembly
3.1 Hydraulic Drive Motor injection-molding-machine-hydraulic-motor 1× 1 · part
3.2 Ball Bearing ball-bearing 4× 4 · part
3.3 Oil Seal oil-seal 2× 2 · part
4 Material Hopper injection-molding-machine-hopper 1× 1 · part
5 Injection Nozzle 3 parts injection-molding-machine-nozzle 1× 1 3 assembly
5.1 Nozzle Body injection-molding-machine-nozzle-body 1× 1 · part
5.2 Heating Element heating-element 1× 1 · part
5.3 Thermocouple injection-molding-machine-thermocouple 1× 1 · part
6 Thermocouple injection-molding-machine-thermocouple 5× 5 · part

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Where the injection unit is used

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

Used in 1 assembly

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.com ↗ Singapore Electronics contract mfg 1,000 pcs 6–10 wks
dixoninfo.com ↗ Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
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