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.
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 18meters 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
About us :1) Zhejiang pinbo plastic machinery co.,ltd is located in ruian wenzhou city with brand of PYM(Former Ruian yumin machine screw co.ltd since 1988).
2) It was developed as a large-scale and comprehensive company specializing in manufacturing the kinds of Screws and Barrels in wenzhou
3) Our company is specialized in making screw barrel in various materails, filter, gearbox, and extruder machine. We are larggest one in Ruian city who supply main parts to machine makers with the history over 24 years. Our workshops cover lands over 5.000 cube meters.
4) Due to its high quality products and outstanding customer service, Our products are sold at home and abroad, like Russia, Thailand, Malaysia, Serbia, Egypt, Morocco, Argentina, Mexico, Brazil, and other countries and regions.
If there is any problem, you can contact with us at any time, we will reply you as soon as possible!
| Product |
The best single screw barrel for extruder in ruian |
| Material |
38 CrMoAlA(JIS SACM645); 42 CrMo(JIS SCM440) |
| Hardness of nitrogen treatment |
HV900°~1100° |
| Tempering hardeness |
HB240 ° ~280° |
| Depth of nitrogen layer: |
0.6~0.8mm |
| Nitrided Brittleness |
above 1 stage |
| Surface Roughness |
Ra0.4 um |
| Screw straightness |
0.015mm |
| Hardess of surface chromium-plating after Nitriding |
HV≥950HV |
| Chromium plating Depth |
0.025-0.085mm |
| Alloy Depth |
2.5mm-4mm |
| Alloy hardness |
HRC62°~72° |
| Heating-treatment |
nitrogen ,electroplated hard -chrome finish,high frequency quenching |
Audited Supplier 
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