1. Advantages of Twin conical screw and 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.
We can manufacture various kinds of screw barrels according to the customers requirement.
Echnological Process:
BlankingRough MachiningQuenching & Tempering Semi Finishing MachiningFinished ProductDetectingNitring/Alloy Processed Finish Machining
About us:
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). The company is specialized in making screw barrel, gearbox zlyj series, t die, filter and extruder machine. It has become one of the
largest supplier of main parts in Ruian city which is the basement
of plastic machines. it has its great advantages as followings:
A> long time experience and history screw barrel for shoes machine
B> long time nitriding treatment and heating treatment by itself extruder screw and barrel / vent screw barrel for pvc
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
FAQ
What are we? -We are factory, with license of import and export goods by ourself.
How to get to us? The nearest airport is Wenzhou airport, and the nearest train station is Ruian station.
How do we control the quality of screw barrel? We have professional engineer and staffs to check every detail and dimensions from the raw materail, nitrding treatment and super grinding. We do the crucial nitriding treatment by ourself, we have nitriding ovens in depth8000mm, and do nitriding treatment in 8 days and nights, which greatly ensure the hardness of screw barrel
Why to choose us.
1. We have long history and experience working in the field
2. We have the most advanced equipments and technique in our industry
3. We have professional engineers and staffs
4. We have 100% quality ensure system and 24hours after-sale service system
5. We own two lands of workshop, covering 5000cbms.
Main parameters:
| 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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