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Extruder Screw and Barrel
Extruder Screw and Barrel

Extruder Screw and Barrel: 1.applicable to general-purpose plastic machine. 2.according to customer's request.

Extruder Screw and Barrel:

Material: 38CrMoAl A Nitridized Case hardness of screw: HV≥750-940 Case hardness of barrel: HV≥940-1100 0.5-0.8mm Depth of nitridized layer Nitriding brittleness: Grade 1, surface roughness: Ra 0.4μm

Our company mainly produces nitridized screws and barrels as follows:

Standards of injector cylinders and screw & accessories

Single screw & Barrel extruder

 Twin parallel different direction Double screws & barrel

 Conical twin screws & barrel

With the increasing use of engineering plastics in daily life and in industries, there are more and more varieties of engineering plastics, such as PC, PVDF and modified plastics with calcium carbonate and silicon dioxide, or with glass fibre, carbon fiber, and boron fiber. As these special engineering plastics have met the product needs, the modified plastics can be made suitable to some particular products or lower the production costs. But on the other hand, it increases the wear and corrosion of screws and barrels in some key parts. To change this situation, the company has developed new types of screws and barrels made of dual alloy, pansclerosis alloysteel, stainless steel and galvanization.

Extruder Screw and Barrel

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