Model NO.: SLG30-250mm
Base Material: 38crmoaia,42CrMo
Place of Origin: Zhejiang China
Tempering Hardness: 240-280hv
Depth of Nitrogen Layer: 0.6-0.8mm
Hardness of Nitrogen Treatment: 900-1100hv
Hardness of Alloy: HRC62-72
Warranty: Nomally 1 Year
Trademark: pym
Specification: CE, SGS, TUV, BV
Origin: Ruian
HS Code: 8477900000
Model NO.: SLG30-250mm
Base Material: 38crmoaia,42CrMo
Place of Origin: Zhejiang China
Tempering Hardness: 240-280hv
Depth of Nitrogen Layer: 0.6-0.8mm
Hardness of Nitrogen Treatment: 900-1100hv
Hardness of Alloy: HRC62-72
Warranty: Nomally 1 Year
Trademark: pym
Specification: CE, SGS, TUV, BV
Origin: Ruian
HS Code: 8477900000
Conical twin screw barrel
1. Technical parameter:

Diameter: Φ35-Φ250(according to the demands of customers)
L/D ratio of screw: 16-35
Conical dual-hole barrel screw specificaiton: Φ25Φ45-Φ92Φ188(according to the demands of customers)
 The screw compressor can be designed according to different products and formulas
Technology index: Depth of nitrition layer: 0.4-0.7mm
Nitriding treatment, surface hardness: HV≥900-1000
Fragility of nitrition: less than grade 1
Surface roughness: Ra 0.4um
Streightness of screw: 0.015mm
Chrome plating thickness:0.01-0.1mm
Bimetal coating thickness:1.5-2.0mm
Material: base material 38CrMoAlA


2. Workshop show:

Conical Screw Barrel in Bimetallic
3. Certificate:

Conical Screw Barrel in Bimetallic
4. Why to choose us?

We have long history and experience working in the field.
We have the most advanced equipments and technique in our industry.
We have professional engineer, Cad drawer and staffs.
We have 100% quality ensure system and 24hours after-sale service system.
We have passed third-party assessment, such as CE, SGS and TUV and BV.

Conical twin screw barrel
1. Technical parameter:

Diameter: Φ35-Φ250(according to the demands of customers)
L/D ratio of screw: 16-35
Conical dual-hole barrel screw specificaiton: Φ25Φ45-Φ92Φ188(according to the demands of customers)
 The screw compressor can be designed according to different products and formulas
Technology index: Depth of nitrition layer: 0.4-0.7mm
Nitriding treatment, surface hardness: HV≥900-1000
Fragility of nitrition: less than grade 1
Surface roughness: Ra 0.4um
Streightness of screw: 0.015mm
Chrome plating thickness:0.01-0.1mm
Bimetal coating thickness:1.5-2.0mm
Material: base material 38CrMoAlA


2. Workshop show:

Conical Screw Barrel in Bimetallic
3. Certificate:

Conical Screw Barrel in Bimetallic
4. Why to choose us?

We have long history and experience working in the field.
We have the most advanced equipments and technique in our industry.
We have professional engineer, Cad drawer and staffs.
We have 100% quality ensure system and 24hours after-sale service system.
We have passed third-party assessment, such as CE, SGS and TUV and BV.

Drinking Paper Cup

Drinking Paper Cup,Cold Drinks Cup,Hot Drinks Cup,Beverage Paper Cup

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