Twin conical screw and barrel for pvc extrusion machine

conical twin screw and barrel, 1)42CrMo (JIS SCM440), 2) Nitriding treatment, 3) PVC foaming producing, 4) ISO9001:2000 - details see: https://www.machineto.com/twin-conical-screw-and-barrel-for-pvc-extrusion-machine-10334616

Place of Origin:Zhejiang China (Mainland)	Brand Name:FIVE STAR	Model Number:TWIN SCREW	Hardness after hardening and tempering:HB260-290
Depth of nitriding:0.55-0.85mm	Hardness of nitriding:HV 950-1020	Fragility of nitriding:Less than grade 2	Depth of bimetallic layer:2.0-3.0mm
Hardness of bimetallic:HRC59-65	Roughness of the surface:Ra 0.4um	Screw Straightness::0.015mm	Chromium-plating Depth::0.02-0.15mm
Material::Quality 38CrMoAIA

Diameter	Φ15mm-350mm	Designing	Screw structure and compression ratio can be designed according to different products & different output re quirement.
Materials	38CrMoAlA (JIS SACM645) SKD61	Application	Suit for HDPE , LDPE, LLDPE recycling.
Nitride Case Depth	0.55mm-0.85mm	Technology	1)Longer time Gas Nitriding treatment 2) Special corrosion & abrasion alloy (bimetallic) 3)Tungsten carbide 4)Cobalt base alloy 5)Stainless steel 6)GH113 nickel based alloy
Nitride Hardness	950-1020HV	Packing	Wrapped up by film in wooden case
Nitride Brittleness	≤Grade Two	Payment Term	T/T , L/C , WESTERN UNION
Surface Roughness	Ra0.4um	Delivery Term	25-40 working days
Screw Straightness	0.015mm	Port Departure	Shanghai/Ningbo
Alloy Hardness	HRC59-65	Min. Order	1 set
Alloy Depth	2.0mm-3.0mm	Guarantee	Common Nitrided: 2-3years Bimetallic: much longer lifetime
Five-Star ADVANTAGES	1.Advanced Nitriding Technology: we have our own nitriding equipment. 2.Duplex metal Spraying Technology for high corrosion and abrasion resistance 3.We use special alloy powder being sprayed and welded on the screw's ridge,and use different alloy and welding methods for the screw of different functions. 4.Fast and on time delivery . 5.Longer lifetime for the screw barrel.

Advantages of Twin conical screw and barrel for pvc extrusion machine :

1.Advanced Io-nitriding Technology
2.Anti-corrosion and Wear-resisting duplex Metal Spraying Technology

3.We use special alloy powders being sprayed and welded on the screw's ridge/flight,and usedifferent alloy and welding methods for the screw of different functions.

conical twin screw and barrelsize
Ø45/Ø90	Ø45/100	Ø50/Ø105	Ø51/Ø105	Ø55/Ø110
Ø60/Ø125	Ø65/Ø120	Ø65/132	Ø68/Ø132	Ø70/Ø140
Ø75/Ø150	Ø80/Ø143	Ø80/Ø156	Ø92/Ø188

ABOUT US:

Zhoushan Five-star Machinery Manufacturing CO., LTD is located in Jintang town of Zhoushan City.

The town, which is named as Screws And Barrels Town in China, has excellent geographical location. It is in the north of Ningbo, in the south of Shanghai. After more than 20 years development, our company has been a famous high-quality screws and barrels supplier and pioneer in China. “Five-star” brand is awarded as “China Famous Best-seller brand” for screw and barrel by China Brand and Marketing Strategy Promotion Committee.

To make you an accurate quote, we need your kindly support to provide drawings, quantity, material, heat treatment requirements, destination, etc.

1.Please send us meassage online now.

2.Please contact us by E-mail.

If you have any need, please feel free to contact me. Veronica is here!