About Us
Introduction

Shanghai Alpha Machinery Co., Ltd is a Canada investment enterprise in China with high-new technique in the field of material science application. It is the first one in China that specially design and manufacture bimetallic barrel and screw. Now it is also the first one in China to research and develop PM-HIP technology to manufacture high-wear special alloy bush which fixes inside segment barrel of twin screw extruder.
As a very important replace materials, plastic and rubber are used more and more. Therefore, various modified plastic is used widespread. For instance, some limestone, kaolin, silica, etc are added into plastic for modifying, some glass fiber, carbon fiber, boron fiber are added into plastic for enhancement. Due to putting these filler and reinforcer, the plastic's characteristics are changed. That makes plastic suitable for special purpose.
But on the other hand, it could make the machinery heart - Barrels and screws to be seriously corroded and worn. This case will cost much time and manpower to repair or replace these parts. The production will go down.
Due to plastic machine could not meet the market needs, Shanghai Alpha Machinery Co., Ltd emerges as times require. It keeps on developing the bimetallic technology. The bimetallic barrel & screw helps thousands of customers prolong service life of they extruders and injection machines maximum.
Effect compare with bimetallic and nitrided barrel and screw (All data supplied by customers in China)
| Name of customer |
Plastic |
ID of Barrel |
Material of barrel & screw |
Service time |
Result after running |
| Dong Guan Jia Hui Factory |
PC+35%
Glass Fiber |
φ50
Injection Machine made in Japan |
SACM645 & Nitrided barrel |
Three months |
Wear out and disused |
| Bimetallic barrel(α101 alloy) |
Twenty months |
Wear out and disused |
Sun De
Hua Da Factory |
PA+35%
Glass Fiber |
φ65
Extruder |
SACM645 & Nitrided barrel |
Three months
(24h/Day) |
Wear out and disused |
| Bimetallic barrel(α101 alloy) |
Twelve months
(24h/Day) |
In using |
| Dong Guan Bao Guang Factory |
Crylic acid fibrin |
φ36
Injection machine Made in Zheng De |
SACM645 & Nitrided barre |
One month |
Have to be repaired |
| Bimetallic barrel(α301 alloy) |
Twelve months |
In using |
| Su Zhou Jiang Nan Fiber Factory |
Terylene pitch+Dye |
SJ-65B
Extruder made in Shanghai |
SACM645 & Nitrided barrel |
Nine months |
Wear out for 7.5mm |
| Bimetallic barrel(α101 alloy) |
Twelve months |
Wear out for 0.70mm |
| Su Zhou No.8 Plastic Factory |
Polytetra- fluoroethylene |
SJ-90A Extruder made in Wu Han |
SACM645 & Nitrided barrel |
Six months |
Have to be repaired |
| Bimetallic barrel(α201 alloy) |
One year |
In using |
| Shanghai Weave Plastic Factory |
PA+30%Glass Fiber |
XS-ZY-601 Injection machine Made in Ning Buo |
S45C chromium-plating barrel |
Six months(16h/day) |
Wear out for 2mm |
| Bimetallic barrel(α101 alloy) |
Six months(16h/day) |
Wear out for 0.04mm In using |
| Shanghai No.30 Radio Factory |
Black ABS,PS |
SZ-300/160A
(Injection machine Made in Hang Zhou) |
SACM645 & Nitrided barrel |
3000 Hours |
Wear out for 0.07mm |
| Bimetallic barrel(α101 alloy) |
3000 Hours |
Wear out for 0.005mm |
ALPHA win a customer's reputation, win the praises in the market.
Service
- To assist in ameliorating or redesigning different screw and barrel for running different plastics.
- To assist in rising up your extruder's output, prolonging its service life.
- According to your requirement to assist in rebuilding your extruders.
- You have deserted film or other plastic and we could help you to recycle it.
- About PE foam sheet, would you like to make it? To ply it? To film it? It's sure we can help you.
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Shanghai Alpha Information
Headquarter Office
Add: 406 Zhenchen Rd., Shanghai, 20031 China
Tel: +86-21-66954579, 66959128, 66958864
Fax: +86-21-66958395
Shen Zhen Office
Add: Block 68, Huan zhu Road, DU Zhu Cun, Heng Gang Tow, Long Gang District, Shen Zhen, GuangDong, 518031 China
Tel: +86-755-28623907
Fax: +86-755-28624930
Nan Jin Office
Add: 141Ma Qun Xin Street Nan Jin, Nan Jin, 210049 China
Tel: +86-25-84354626
Fax: +86-25-84363208
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