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Harbin Rainbow Technology Co., Ltd.Address:C2-02 Handi Building,Songbei Distr.,Harbin,ChinaPostal Code:150028Web site address:http://www.fastenerequip... Contact Now
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What is Cold Forging – Cold Forging Process, Materials, Uses, Advantages & Disadvantages

Working principle of nut tapping machine

Nut tapping machine is a kind of machining equipment that processes internal threads, screws or teeth buckles on the inner side of the holes of variou...

Difference between hot dip zinc and hot dip galvanising

Hot-dip zincing and hot-dip galvanising are two different processes for corrosion protection of metals, with hot-dip zincing usually providing better ...

Thread Rolling

Tightening bolts can not be ignored friction can cause problems to solve the problem

fortensionbolt, The friction force is a factor to be reckoned with. Bolt friction joint has been in existence, it may be part of the reason that cause...

The Complete Guide to Zinc Plating: All You Need To Know

What Is Cold Forming?

What's self-tapping screw?

Self-tapping screws: similar to machine screws, but the threads on the screw for special self-tapping screws with threads. Used to fasten the connecti...

Analysis of the principle and function of spring washers

In all kinds of mechanical connections, the anti-loosening of bolts is a very important link, and there are many ways to prevent loosening of bolts in...

High speed installation cold forging machine bolts and nuts making machine for screw

Keywords : Fully automatic

China Rainbow Energy Saving Continuous Heat Treatment Furnace for Fasteners manufacturer

Rainbow Energy Saving Continuous Heat Treatment Furnace for Fasteners

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

More
China Rainbow 500kg/hour Electric Continuous Mesh Belt Quenching Tempering Furnace High Productivity Fastener Furnace manufacturer

Rainbow 500kg/hour Electric Continuous Mesh Belt Quenching Tempering Furnace High Productivity Fastener Furnace

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

More
China Rainbow Electric Heat Treatment Furnace for Screw and Concrete Nails with Low Energy Cost manufacturer

Rainbow Electric Heat Treatment Furnace for Screw and Concrete Nails with Low Energy Cost

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

More
China Rainbow 2026 Automatic CY20Z Screw Bolt Thread Rolling Machine manufacturer

Rainbow 2026 Automatic CY20Z Screw Bolt Thread Rolling Machine

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.

More
China Fully High Speed 4 Spindle Nut Tapping Machine manufacturer

Fully High Speed 4 Spindle Nut Tapping Machine

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.

More
China Rainbow Automatic High Precision Screw Thread Rolling Machine manufacturer

Rainbow Automatic High Precision Screw Thread Rolling Machine

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.

More
China Rainbow Hot Sale Multi Station Cold Forging Machine High Speed Bolt Former manufacturer

Rainbow Hot Sale Multi Station Cold Forging Machine High Speed Bolt Former

high quality hydraulic forging press bolt making machine power hammer cold forging machine

More
China Rainbow Automatic Screw Thread Rolling Machine High Precision Bolt Making Machine manufacturer

Rainbow Automatic Screw Thread Rolling Machine High Precision Bolt Making Machine

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.

More
China Rainbow Automatic 6 Station Nuts Making Machine High Precision Cold Forging Machine manufacturer

Rainbow Automatic 6 Station Nuts Making Machine High Precision Cold Forging Machine

High speed nut former, nut making machine,nut forging machine to make hex,flange, nylock nut and special nut parts.

More
China Long stroke nut forming machine for Auto part former with low sound manufacturer

Long stroke nut forming machine for Auto part former with low sound

High speed nut former, nut making machine,nut forging machine to make hex,flange, nylock nut and special nut parts.

More
China Multi station cold forging machine for M14 hex nut former with 10% discount manufacturer

Multi station cold forging machine for M14 hex nut former with 10% discount

High speed nut former, nut making machine,nut forging machine to make hex,flange, nylock nut and special nut parts.

More
China 7 station nut making machine heavy duty nut former with good quality manufacturer

7 station nut making machine heavy duty nut former with good quality

High speed nut former, nut making machine,nut forging machine to make hex,flange, nylock nut and special nut parts.

More
China 500kg Industrial Furnaces and Ovens manufacturer

500kg Industrial Furnaces and Ovens

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

More
China Continuous Carburizing Heat Treatment Furnace for Screws manufacturer

Continuous Carburizing Heat Treatment Furnace for Screws

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

More
China Carburizing Mesh Belt Furnace for Screws manufacturer

Carburizing Mesh Belt Furnace for Screws

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

More
China 6 Station Part Maker Cold Heading Machine Bolt Making Machines with PLC manufacturer

6 Station Part Maker Cold Heading Machine Bolt Making Machines with PLC

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!

More
China RBF136 Good Condition Cold Heading Machine with PLC for Hex Bolt manufacturer

RBF136 Good Condition Cold Heading Machine with PLC for Hex Bolt

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!

More
China Multi Station Metal Part Maker Cold Heading Machine Bolt Making Machines with PLC manufacturer

Multi Station Metal Part Maker Cold Heading Machine Bolt Making Machines with PLC

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!

More
China Reciprocating Special Threading Machine Nut Tappers M8 manufacturer

Reciprocating Special Threading Machine Nut Tappers M8

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.

More
China LDH-M6  Inner Diameter Nut Tapping Machine Nut Tapper manufacturer

LDH-M6 Inner Diameter Nut Tapping Machine Nut Tapper

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.

More
China Inner Diameter Nut Tapping Machine Nut Tapper Good Capacity with HMI manufacturer

Inner Diameter Nut Tapping Machine Nut Tapper Good Capacity with HMI

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.

More
China LDH-M8-M12 Max 14MM Nut Tapping Machines Nut Tapper Servo Motor with HMI manufacturer

LDH-M8-M12 Max 14MM Nut Tapping Machines Nut Tapper Servo Motor with HMI

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.

More
China Speed 30pcs/min M16 Nut Tapping Machine Nut Threading Machine Good Capacity with HMI manufacturer

Speed 30pcs/min M16 Nut Tapping Machine Nut Threading Machine Good Capacity with HMI

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.

More
China LDH-M6 Nut Tapping Machine Nut Tappers Good Capacity with HMI manufacturer

LDH-M6 Nut Tapping Machine Nut Tappers Good Capacity with HMI

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.

More