• Model NO.：75MM LD 1: 28
• Base Material：38crmoaia, 42CrMo
• Diameter for Single Screw：20-500mm
• Screw Design：Single Screw
• Application：PP PVC PE
• Certificat：CE BV SGS TUV
• Transport Package：Stardand
• Specification：CE SGS BV TUV
• Trademark：PYM
• Origin：Wenzhou, Zhejiang
• HS Code：847790000
• Production Capacity：300set,Sets Per Month

Basic Info.

Model NO. 75MM LD 1: 28 Base Material 38crmoaia, 42CrMo Diameter for Single Screw 20-500mm Screw Design Single Screw Application PP PVC PE Certificat CE BV SGS TUV Transport Package Stardand Specification CE SGS BV TUV Trademark PYM Origin Wenzhou, Zhejiang HS Code 847790000 Production Capacity 300set/Sets Per Month

Product Description

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!

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