Product Details

40Cr bimetallic plastic extruder twin screw barrel

Specification available:

45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 58/124, 60/125, 65/120, 65/132, 68/143, 70/135,
70/140, 75/150, 80/143, 80/156, 92/188

Grade available:

1. Standard grade: 38CrMoAlA + nitriding 96 hours
2. Bimetallic grade: 38CrMoAlA + bimetallic alloy
3. TC-A grade: Tungsten carbide 40%
4. TC-B grade: Tungsten carbide 25%
5. TC-C grade: Tungsten carbide 9.5%

With the development of varieties of plastics, more and more customers are requesting for bimetallic screw to extend the

lifetime of the screw.

Normally we do PTA weld spray coating for the bimetallic screw. And we apply Stellite alloy powder which is in high wear

resistance and corrosion resistance.

Physical Characteristics for screw

Type	Model	Hardness(HRC)	Wear resistant	Corrosion resistant	Thickness	Application Glass Fiber
PTA weld	38CrMoAlA Ni-base alloy	58-61	Excellent	Special excellent	1.5~3mm	Under 10%
	38CrMoAlA Ni-base alloy	58-63	Special excellent	Excellent	1.5~3mm	Under 30%
	SKD61 Ni-base alloy	58-65	Special excellent	Excellent	1.5~3mm	Under 50%
Nitriding	Nitrided	HV more than 800	Good	Good	0.25mm	/

Types of Bimetallic Screw

Application:

We suggest you the bimetallic screw if you process the material of fiber glass, wpc, calcium carbonate, titanium dioxide ect.

Technical Parameter for twin screws barrels

Steel Material	DIN 41CrA1Mo7 / AST M4140 / GB 38CrMoAlA
Deepness of Nitriding Layer	0.7 mm -0.9 mm
Hardness of Nitriding	HV900 - HV1,000
Nitriding Brittleness	≤Grade 2
Chrome plating	Thickness 0.05 mm - 0.10 mm, hardness HV950
Special treatment	Carbide coating on screw flight and bimetallic barrel
Screw straight tolerance	0.015 mm/m
Surface roughness	Ra 0.4μm

Quality Inspection

We take only first-class steel and check every production procedure to ensure every dimension is produced precisely. A final complete inspection will be executed before dispatch.

As a professional manufacturer and supplier of screw and barrel,we can make any specification of extruder screw barrel and injection screw barrel for Haitian, Demag, Engle, Nigro bossi, arburg, NPM, BOY, Husky, Fanuc, billion, Sumitomo, Nippon Steel, Toshiba, Nissei, Mitsubishi and etc. We also can supply all types of screw and barrel according to your different requirements.

Our advantages

1. Over 10-year exprience in this line

2. Exported to 30 countires

3. 24-hour service

If you have any inquiry, do not hesitate to inform us. Skype: zj1584