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conical double screw and barrel, 1)42CrMo (JIS SCM440), 2) Chrome plating, 3) different compression ratio, 4) ISO9001:2000 - details see: https://www.machineto.com/chrome-plating-conical-double-screw-and-barrel-10334953

conical double screw and barrel

Material and Heat treatment
Material	Heat Treatment
1) 38CrMoALA(JIS SACM645)	Nitriding treatment
2) 9Cr18MoV	Corrosion & Abrasion resistance bimetallic alloy coating
conical double screw and barrel Technical Parameter
Hardness after hardening and tempering	HB260º-290º
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	HRC59º-65º
Roughness of the surface	Ra 0.4um

Screw and barrel size
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.

conical double screw and barrel

Quality

----High quality material.

The material is from Baosteel in China, HITACHI in Japan and other materials from Germany.

----New advanced machines.

3 coordinate CNC deep hole drilling machine, CNC milling machines, boring machines, other machines are equipped.

----Heat treatments.

Hardening, tempering, surface nitriding, chrome plating, high-frequency quenching, vacuum hardening, welding bimetallic powder etc. are available.

----Experienced engineers and technicians.

We have a professional technical team, who always support you.

Quality Control

----We are quality control ISO9001:2000 certified company.

With experienced inspectors and advanced testing tools and equipments, our products can meet Germany/ international standard.

Warranty

One year warranty is offered to customers. And experienced engineer team can offer good technical support.

Service

We are a authorized factory to import and export goods by the government. We have export the goods to Germany, Turkey, Malaysia, etc..

----With capacity 2000 sets per year, we can make quick delivery.

----Customers’ drawings are welcomed. And we can also design the drawings according to customers’ requirements.

----We can offer products with “ Five-star” brand. And OEM business is welcomed.

Contact Us for conical double screw and barrel Quotation or Support:

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.