Specifications

1.screw and barrel for extruder machine
2.Gurantee:2-5 years
3.suitable masterbatch:PVC,PP,PE,ABS,WPC,PS etc.
4.ISO9001:2008

QunYing Screw is the best screw barrel manufacturer and supplier in China.

We have more than 25 years experiences to manufacture bimetallic barrel & screw for injection machines and extruder machines.Our bimetallic barrel & screw have very long service life,and they could service for PP PE ABS AS and any engineering plastics.

 

Our manufactory have been already passed the ISO 9001:2008 and SGS certificate.

<Dimension Avaliable>

<Material>
Normal Material we use as following:
1.38CrMoAlA(JIS SACM645),( this are the best common material in producing parallel twin screw barrel)
2.Cr12MOV(JIS SKD-11)
3.4Cr5MoSiV1(JIS SKD-61)
4.42CrMo(AISI 4140)

The foreign material we used as following:

1. Germanysteel, GH113 ,2250 ,2842 ,1.8509 ,1.442 ,1.6582 ,1.6523 ,1.2080,1.4542,

2. USA steel, P20,420,L6,H13,W110,D3,A2,D6,O1,S1,M35,8620,3115,K52440

3. Sweden steel, 718S,718H,S136,S136H,STAVAX,ASP-23,ASP-30

4. Australia Steel, M202,M300,W302,K460,W300,K900,K100,W321

5. Hardnesssteel, YG6X,YG 6A,YG 6,YG8N,YG8,YG8C,YG11C,YG 15,YT5,YT14,YT30

6. Japan Steel, SKT 4,YXM 4,YXM 42,SNC 815,SK -3,SKS 3,and etc.

Treatment
bimetallic SCREW BARREL GRADE
Nitrided
Bimetallic

Grade A - containing Tungsten of 40%

Grade B - containing tungsten of 25%

Grade C - containing tungsten of 9.5%

<Technical Parameter>

Nitride Case Depth	0.5mm-0.8mm
Nitride Hardness	950-1150HV
Nitride Brittleness	≤Grade One
Surface Roughness	Ra0.4um
Screw Straightness	0.015mm
Alloy Hardness	HRC58-75
Alloy Depth	0.8mm-3.5mm
Bimetallic Thickness	2-4mm

<Advantage of parallel twin barrel screw>

1.screw and barrel for extruder machine has the advantage of lower rotation speed, smaller shear stress between the small screw 

2. Good plasticization, high productivity, small shear force, stable pressure , less wear and tear and low cost.

3. screw and barrel for extruder machine is widely used in PVC products processing, especially for the production of PVC products with the output over 350Kg / h, because the parallel twin screw barrel costs less than conical twin-screw and barrel while it has more mature technology.

4. screw and barrel for extruder machine is successfully applied in PVC plate, pipe, profile, pellet and mould, at the same time, it solved the technical problem of low foaming, high foaming, high filling, wear and corrosion.

Our Certificate

 

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