Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China. We have invested one Cold former factory(Ningbo), one Thread rolling machine factory(Ningbo), one Heat treatment furnace factory(Suqian) and one Electro plating equipment factory(Wuxi).

We have more than 30 years experiences in supplying all kinds of fastener equipment, such as Bolt Maker, Nut Maker, Cold Heading Machine, Thread Rolling Machine, Wire Drawing Machine, Heat Treatment Furnace and Zinc Plating line, etc. to customers all over the world, With our reputation increasing and our team becoming more professional, we have experienced a significant growth in business during the recent years.

Nowadays, more and more reputed companies compete in a long-term cooperation with us.We abide by the principles of honesty, credibility, and mutual-benefit. Our motto is “ONCE BUSINESS, FOREVER FRIENDS”, we will do our best to serve clients at home and abroad. Due to our top-notch professional knowledge and rich trad experience, we have seen our market developing ability and actual business growth with an increasingly faster pace. We sincerely look forward to working with you. Let's build a great future together!

high capacity,high precision,full automatic,cold forging machine, nut making machine

Our nut tapping machine can make different nut size thread. 

Various types of thread rolling machine to meet your various needs.

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China. We have invested one Cold former factory(Ningbo), one Thread rolling machine factory(Ningbo), one Heat treatment furnace factory(Suqian) and one Electro plating equipment factory(Wuxi).

We have more than 30 years experiences in supplying all kinds of fastener equipment, such as Bolt Maker, Nut Maker, Cold Heading Machine, Thread Rolling Machine, Wire Drawing Machine, Heat Treatment Furnace and Zinc Plating line, etc. to customers all over the world, With our reputation increasing and our team becoming more professional, we have experienced a significant growth in business during the recent years.

Nowadays, more and more reputed companies compete in a long-term cooperation with us.We abide by the principles of honesty, credibility, and mutual-benefit. Our motto is “ONCE BUSINESS, FOREVER FRIENDS”, we will do our best to serve clients at home and abroad. Due to our top-notch professional knowledge and rich trad experience, we have seen our market developing ability and actual business growth with an increasingly faster pace. We sincerely look forward to working with you. Let's build a great future together!

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China.We have more than 30 years experiences in supplying all kinds of fastener equipment, such as Bolt Maker, Nut Maker, Cold Heading Machine, Thread Rolling Machine, Wire Drawing Machine, Heat Treatment Furnace and Zinc Plating line, etc. to customers all over the world.

CY12Z Thread Rolling Machine 

Model CY12Z
Diameter range (mm) 8-12
Screw length (mm) 150/200/300
Max. Thread Length (mm) 100
Travel mold size (mm) 190/215/35
Main motor (KW) 15
Output (pieces/minute) 65-85
Approximate weight (kg) 5600
Machine size (L*W*H)(mm) 3265×1524×2345

Free design,Provide quotation list, process chart, lay out drawing, video to see more details
We have specialized in surface treatment equipment for more than 20 years.
If you have any requirement, please let me know.  Avril@rainbowtechnology.net 

Composition entire heat treatment line as follows:
Automatic feeder → → washing machine before
Hardening furnace oil quenching tank → →
Rear wiper steel furnace → →
Electrical control cabinet.
Buyers can flexiblely composition processing lines, due to the different needs

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China.
We have more than 30 years experiences in supplying all kinds of fastener equipment, such as Bolt Maker, Nut Maker, Cold Heading Machine, Thread Rolling Machine, Wire Drawing Machine, Heat Treatment Furnace and Zinc Plating line, etc. to customers all over the world.

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China.
We have more than 30 years experiences in supplying all kinds of fastener equipment, such as Bolt Maker, Nut Maker, Cold Heading Machine, Thread Rolling Machine, Wire Drawing Machine, Heat Treatment Furnace and Zinc Plating line, etc. to customers all over the world.

Composition entire heat treatment line as follows:
Automatic feeder → → washing machine before
Hardening furnace oil quenching tank → →
Rear wiper steel furnace → →
Electrical control cabinet.
Buyers can flexiblely composition processing lines, due to the different needs

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China.
We have more than 30 years experiences in supplying all kinds of fastener equipment, such as Bolt Maker, Nut Maker, Cold Heading Machine, Thread Rolling Machine, Wire Drawing Machine, Heat Treatment Furnace and Zinc Plating line, etc. to customers all over the world.

China manufacturer bolt making machine bolt maker bolt former

Composition entire heat treatment line as follows:
Automatic feeder → → washing machine before
Hardening furnace oil quenching tank → →
Rear wiper steel furnace → →
Electrical control cabinet.
Buyers can flexiblely composition processing lines, due to the different needs

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China.
We have more than 30 years experiences in supplying all kinds of fastener equipment, such as Bolt Maker, Nut Maker, Cold Heading Machine, Thread Rolling Machine, Wire Drawing Machine, Heat Treatment Furnace and Zinc Plating line, etc. to customers all over the world.

Harbin Rainbow Technology Co. , Ltd comes from China National Machinery Import and Export Corp. Harbin branch. The main business is manufacturing cold forging machine, Bolt Maker, Nut Maker, Part Former, Screw Heading Machine, Thread Rolling Machine, Wire Drawing Machine and Mesh Belt Furnace, Zinc plating plant. etc. We have our own factories in China, so you don't have to worry about the source of goods.

Various types of thread rolling machine to meet your various needs.

Double Layer Glass Disk Optical Sorting Machine

Composition entire heat treatment line as follows:
Automatic feeder → → washing machine before
Hardening furnace oil quenching tank → →
Rear wiper steel furnace → →
Electrical control cabinet.
Buyers can flexiblely composition processing lines, due to the different needs

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China.
We have more than 30 years experiences in supplying all kinds of fastener equipment, such as Bolt Maker, Nut Maker, Cold Heading Machine, Thread Rolling Machine, Wire Drawing Machine, Heat Treatment Furnace and Zinc Plating line, etc. to customers all over the world.