38CrMoAIA Single and Twin Plastic Screw and Barrel for Extruder Machine

Product Details

Vented screw barrel and pvc screw barrel and bimetallic screw and barrel
Remarks:We can design and manufacture various kinds of screw barrel according to the customers requirement.
Advantage of 38CrMoAIA Single and Twin Plastic Screw and Barrel for Extruder Machine:
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.



38CrMoAIA Single and Twin Plastic Screw and Barrel for Extruder Machine 


38 CrMoAlA(JIS SACM645); 42CrMo(JIS SCM440)

Hardness of nitrogen treatment


Tempering hardeness


Depth of nitrogen layer:


Nitrided Brittleness

above 1 stage

Surface Roughness

Ra0.4 um

Screw straightness


Hardess of surface chromium-plating after Nitriding


Chromium plating Depth


Alloy Depth


Alloy hardness



nitrogen ,electroplated hard -chrome finish,high frequency quenching

Our Services
1)Yumin with more than 1 year guarantee for screw and barrel!
2)For each product will be inspected before shipment!
3)Yumin can design the drawing according to cusotmer request!

Our exhibition:
Packaging & Shipping


Company Information 

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 owns many computer-control CNC milling machines in length 8000mm In Fanuk series, 18000mm length deep hole drilling machine and other advanced equipment. 

Long time nitriding treatment for 7days and nights greatly ensure the hardness and lifetime of its products. Meanwhile, the company and its products have passed assessment by SGS company, Bureau of Veritas, Tuv and Ce certificate.

1.Q:What are we?
A:We are factory, with license of import and export goods by ourself. 

2.Q:How to get to us?  
A:The nearest airport is Wenzhou airport, and the nearest train station is Ruian station.

3.Q:How do we control the quality of screw barrel?
A: 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 7 days and nights, which greatly ensure the hardness of screw barrel. 

4.Q:How to contact us ?
A:Send you inquiry details in below for screw barrel.Click  "send now ".
ZHEJIANG PINBO PLASTIC MACHINERY CO.,LTD (FORMER RUIAN YUMIN MACHINE SCREW CO.,LTD) is one of the best machinery supplier in China.We cooperate with many machine factories.Waiting for your cooperate with us,your best choice! Have any questions,Pls feel free to contact us! Thanks. Waiting for your inquiry !!!

With the aid of advanced equipment and technology, Pinbo Plastic Machinery is one of the leading China 38CrMoAIA Single and Twin Plastic Screw and Barrel for Extruder Machine suppliers. Please rest assured to buy or wholesale discount and low price products from us.