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1.screw and barrel, 2.material:alloy-steel of high quality, 3.processed to drawing or your request - details see: https://www.machineto.com/screw-barrel-for-blowing-film-machine-10334542

Devry Factory/Conical twin scre barrel
Diameter	Φ25/53,35/77,45/90,51/10, 55/110,65/120,65/132, 70/140,75/150,80/156, 80/172,90/184 92/188.etc	Designing	Screw structure and compression ratio can be designed according to different products &different mixtrues.
Standard Specifications	ISO9001, GBT9001-2000 SO9001-2000 IAF,BOS,CNAS	Advantages	1.Long time Nitriding Technology 2.Anti-corrosion and Wear-resisting Duplex Metal Spraying Technoloy3. we uses special alloy powders being sprayed and welded on the screw's ridge,and uses different alloy and welding methods for the screw of different functions.
Materials	38CrMoAlA (JIS SACM645) SKD61 .etc	Application	PS,HIPS,ABS,SAN,EPN/LDPE,HDPE,UHMPE, EVA,PP,PVC,PMMA,POM,PAST,PET,PBT
Nitride Depth	0.5mm-0.8mm	Technology	1)Longer time Gas Nitriding treatment 2)special anti-wear & abrasion alloy (bimetallic) 3)tungsten carbide;4)cobalt base alloy 5)stainless steel 6)Gh113 nickel based alloy
Nitride Hardness	950-1050HV	Packing	Wrapped up by film in wooden
Nitride Brittleness	≤Grade One	Payment Term	T/T , L/C ,Western Union
Surface Roughness	Ra0.4um	Delivery Term	20-30 working days
Screw Straightness	0.015mm	Port Departure	Shanghai/Ningbo
Alloy Hardness	HRC65-75	Min. Order	1 set
Alloy Depth	1.5mm-3.5mm	Warranty period:2-4years(Depends on the plastic raw materials) Bimetallic: much longer lifetime.

screw barrel for blowing film machine

Our advantages:

screw and barrel for various models

- We can produce diameter 15mm to 300mm screw and barrel

- professional ebgineer design for you

- thousands of drafts can supply for you

- Professional Tech. and R&D team

- Insist on developing screw and barrel for more injection and extruder machine models

- Main market: South America,Eastern Europe,Mid East/Africa

Screw Main parameter:

Screw Diameter:Φ15mm-Φ300mm

Material:38CrMoAlA; SKD61; SKD11; 40Cr; 42CrMo; high quality alloy steel

Technology:nitriding treatment, alloy coating spraying, heat-treatment

Appliance:PVC, PP, PE, PA, PC, ABS, AS etc

Depth of Nitrated Layer:0.5-0.8mm

Hardness of nitration:900-1020Hv

Fragility of nitration:Less than grade 1

Surface Hardness of Nitrated Cr coating layer:≥950Hv

Hardness of Bimetallic Layer:HRC55°-72°

Thickness of Cr-coating Layer:0.03-0.08mm

Depth of Bimetallic Layer:>2mm

The production of screw barrel type:

1. injection screw barrel, injection Molding screw barrel,screw tips/screw nozzle,

2. single screw barrel

3. Twin screw barrel

4. Twin Conical screw and barrel(Co-rotating,Counter)

5. Twin Parallel screw and barrel Co-rotating,Counter)

6. High wear Resistant screw and barrel

7. Screw barrel Assembly parts

8. Bimetallic Screw Barrel

9. Rubber screw barrel

10.Pin screw barrel

11.Force feed screw barrel

12.Blocks screw

13.Gear box

14.screw barrel for blowing molding machine

15. plantary screw barrel