China Design Extruder Single Screw Barrel

The main advantage of screw barrel :

a. Advanced Nitriding Technology
b. Anti-corrosion and Wear-resisting Duplex metal Spraying Technoloy
c. 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.
certificat

Why choose us?
A> long time experience and history

B> long time nitriding treatment and heating treatment by itself

C>advanced Fanuk series CNC computer-controlled milling machines

D>depth hole drilling machine in 10meters length, which ensure the straigtnss of barrel inside.

E> CAD drawing confirmation before start making

F> prompt after sale service

G>Land owner and registration capital 25,000,000RMB
what is the packaging?
We adopt standard wooden case packing
office

Ruian yumin machine screw co.,ltd is a factory specialized in making screw barrel in various materails, filter, t die, gearbox, and extruder machine. We are largest one in Ruian city who supply main parts to machine- maker with the history over 24 years. Our workshops cover lands over5.000 cube meters. We have two factories in Ruian, with 4workshops. We have many computer-control CNC milling machines with the length 8000mm in Fanuk series,18000mm length deep hole drilling machine, and other advanced equipments.All the process is done by ourself, including nitrding treatment. We do nitriding treatment for 7 days and nights, which ensure the hardness and lifetime of screw barrel a lot. Meanwhile, our factory and products are passed the assessment by SGS company, and Bureau of Veritas, TUV, and CE certificate.

Welcome to visit our company !

ProductThe best single screw barrel for extruder in ruianMaterial38 CrMoAlA(JIS SACM645); 42 CrMo(JIS SCM440)Hardness of nitrogen treatmentHV900°~1100°Tempering hardenessHB240 ° ~280°Depth of nitrogen layer:0.6~0.8mmNitrided Brittlenessabove 1 stageSurface RoughnessRa0.4 umScrew straightness0.015mmHardess of surface chromium-plating after NitridingHV≥950HVChromium plating Depth0.025-0.085mmAlloy Depth2.5mm-4mmAlloy hardnessHRC62°~72°Heating-treatmentnitrogen ,electroplated hard -chrome finish,high frequency quenching