Nitriding Conical Twin Screw Barrel for PVC WPC Extrusion Machine

*The service life is based on Sinova’s R&D Lab data and for 5TPH and 10TPH extruding machines only. The actual life is decided by several factors such as operation level, raw material quality, formula composition etc.

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Description

Features:

Item	Specification
Model	Various
Size	Customized
Material	D2 / 4Cr13 / Customized
Application	Animal Feed Extruding
Applicable Animal	Shrimp, Fish, Cat, Dog
Treatment	Heat Treatment
Length	Customized
Trademark	SINOVA
HS Code	8436990000 / 8477900000
Condition	Brand new
Service Life	No less than 50000-60000MT*
Payment Term	TT / LC
Incoterms	EXW / FOB / CFR / CIF
Courier	Sea / Air / Express
Transport Package	Wooden Case / Plywood Case
Origin	Jiangsu, China

Why Sinova:

Aspects	SINOVA	Other Suppliers
Global Team Experience	More than 12 years	Few
Raw Material Source	Europe Standard	Unknown
Lead Time	45 days**	Min. 60 days
Consignment Trace-ability	Yes	No
Online Service Availability	24*365	8*260

**For new products, it will take 45 days to finish the manufacturing, based on Sinova’s experience.

With Sinova extrusion screw chamber, you could ensure:

1. The feed mill’s stable running;

2. Up to 30% of cost could be saved;

3. As long as 15-30 days of waiting could be avoided;

4. Fast response to your concern is always available;

5. Getting the whole procedure of delivery under your control.

Advantages:

Raw material

Cr12MoV alloy tool steel(GB/T 1299-2000) is used to make extrusion screw chamber.

Accurate processing

Processed with CNC grinding, shape error is within ±0.015; kneading piece to piece tolerance is within ±0.03; the length tolerance is within ±0.01; the surface roughness is less than Ra0.4.

FAQ:

1. Q:What brand of extrusion screw could you supply?

A:The major suppliers of extruder include Almex, Amandus Kahl, Andritz, Buhler, Chia Tung, Clextral, CPM, EXTRU TECH, Muyang, Soon Strong, Wenger etc. Sinova could offer extrusion screws as per your special requirements. Please feel free to contact Sinova for detail.

2. Q:What is the raw material of the extrusion screw chamber?

A:Sinova use Cr12MoV as the raw material of extrusion screw chamber, as Cr12MoV performs well in hardness, wear-resistance and strength. Cr12MoV steel is a kind of ledeburite cold work tool steel which developed from Cr12 steel, as the added content of Mo, V, and decrease of C, Cr12MoV have the advantage of Higher hardenability, hardness, wear resistance and small heat

treatment distortion. It’s regularly be used in manufacturing cold mold with a

heavy load, bulk production, and complex shape. Due to Cr12MoV is ledeburite steel, so its toughness is greatly influenced by the carbide morphology and distribution.

The following table shows the chemical composition of Cr12MoV tool steels.

Element	Content(%)
C	1.45-1.70
Si	≤0.40
Mn	≤0.40
P	≤0.030
S	≤0.030
Cr	11.00-12.50
Ni	≤0.20
Mo	0.40-0.60
V	0.15-0.30
Cu	≤0.30

3. Q:How many extrusion screw chambers are required for the extrusion?

A:According to the function, there are feeding chamber, feeding cone chamber, middle chamber, pressure relief chamber and discharging chamber.

4. Q:How long is the service life of the extrusion screw chamber?

A:No less than 50000MT. Thanks to the high quality raw material and heat treatment, the extrusion screw chamber’ service life could be dramatically improved, comparing to traditional one.

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