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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...

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

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...

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 ...

When to Use Spring Washers: A Comprehensive Guide

How to convert natural gas consumption into MMbtu

The Relationship Between Natural Gas and MMBtu

What Is Cold Forming?

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...

Keywords :

China Fully Automatic Multi Station Forging Machine CE manufacturer

Fully Automatic Multi Station Forging Machine CE

China Drywall Screw Making Machine Thread Rolling Machine with CE manufacturer

Drywall Screw Making Machine Thread Rolling Machine with CE

China Bolt Thread Rolling Machine Automatic Threading  - Harbin Rainbow - manufacturer

Bolt Thread Rolling Machine Automatic Threading - Harbin Rainbow -

China Continuous Furnace Energy Saving Heat Treatment Furnace -Harbin Rainbow manufacturer

Continuous Furnace Energy Saving Heat Treatment Furnace -Harbin Rainbow

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 Cold Heading Machine Automatic Screw Making Machine manufacturer

Cold Heading Machine Automatic Screw Making Machine

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

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China CY06Z High Speed Thread Rolling Machine for 3-6mm Screws manufacturer

CY06Z High Speed Thread Rolling Machine for 3-6mm Screws

Model: CY06Z
Diameter range: 3-6mm
Output: 165-185pcs/min
Max. thread length: 75mm
Moving die size: 90x105x25
Power: 4Kw

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China 2026 China Manufacturer Fully Automatic Bolt Cold Forging Machine / Screw Header Machine manufacturer

2026 China Manufacturer Fully Automatic Bolt Cold Forging Machine / Screw Header Machine

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

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China High Speed 4 Spindle Automatic Nut Tapping Machine 60 Pcs/Min for Fasteners manufacturer

High Speed 4 Spindle Automatic Nut Tapping Machine 60 Pcs/Min for Fasteners

China 2026 New Design Thread Rolling Machine for Screw and Bolt Thread Roller with Vibrator manufacturer

2026 New Design Thread Rolling Machine for Screw and Bolt Thread Roller with Vibrator

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

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China Automatic Nail Making Machine High Speed Motor Easy to Operate New for Nails 1000/hour Production Capacity 1000kg manufacturer

Automatic Nail Making Machine High Speed Motor Easy to Operate New for Nails 1000/hour Production Capacity 1000kg

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 Electroplating 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 Rainbow High Precision Full Automatic Cold Heading Nut Forming Machine with Motor & Engine Easy to Operate 380V 20kw manufacturer

Rainbow High Precision Full Automatic Cold Heading Nut Forming Machine with Motor & Engine Easy to Operate 380V 20kw

  • High-Power Performance: 20kw motor ensures efficient operation.
  • Durable Structure: Built for long-term use in hardware bolt nut factories.
  • Wide Application: Ideal for manufacturing bolts and nuts across various industries.
  • User-Friendly Design: Easy-to-operate interface for smooth production workflow.
  • Reliable Warranty: 1-year warranty on key components for peace of mind.
More
China CY06Z High-Speed Automatic Thread Rolling Machine for 3-6mm Screw manufacturer

CY06Z High-Speed Automatic Thread Rolling Machine for 3-6mm Screw

Model: CY06Z
Diameter range: 3-6mm
Output: 165-185pcs/min
Max. thread length: 75mm
Moving die size: 90x105x25
Power: 4Kw

More
China Automatic Nail Making Machine High Speed Motor Easy to Operate New for Nails manufacturer

Automatic Nail Making Machine High Speed Motor Easy to Operate New for Nails

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 Electroplating 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 Thread Rolling Machine Automatic Flat Die for Fastener Screw Bolt Production Line manufacturer

Thread Rolling Machine Automatic Flat Die for Fastener Screw Bolt Production Line

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 CY10Z High Speed Automatic Thread Rolling Machine for Bolts, 6-10mm Diameter manufacturer

CY10Z High Speed Automatic Thread Rolling Machine for Bolts, 6-10mm Diameter

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 R5C Full Automatic Nail Making Machine | Max 170mm Length, 5.5mm Diameter, 200pcs/min High Speed manufacturer

R5C Full Automatic Nail Making Machine | Max 170mm Length, 5.5mm Diameter, 200pcs/min High Speed

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 Electroplating 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 R5C Nail Making Machine | Max 170mm Length, 5.5mm Dia, 200pcs/min High Speed Nail Maker manufacturer

R5C Nail Making Machine | Max 170mm Length, 5.5mm Dia, 200pcs/min High Speed Nail Maker

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 Electroplating 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 Full Automatic 4 Spindle Tapping Machine  with Full Cover Nut Drilling Machine manufacturer

Full Automatic 4 Spindle Tapping Machine with Full Cover Nut Drilling Machine

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

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China Rainbow Taiwan Technology Bolt Nut Resistance Furnace Heat Treatment Line Low Energy Consumption Continuous Gas Heating manufacturer

Rainbow Taiwan Technology Bolt Nut Resistance Furnace Heat Treatment Line Low Energy Consumption Continuous Gas Heating

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 M18-M22 Hex Bolt Threads Roller Thread Rolling Machine Screw Threads manufacturer

M18-M22 Hex Bolt Threads Roller Thread Rolling Machine Screw Threads

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 Industrial Bolt Making Automatic Spoke Thread Professional Thread Roller Metal Moulding Bar Thread Rolling Machine manufacturer

Industrial Bolt Making Automatic Spoke Thread Professional Thread Roller Metal Moulding Bar 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 Full Automatic Nail Making Machine M2-M10 Nail Forming Machine for Different Diameter Nails manufacturer

Full Automatic Nail Making Machine M2-M10 Nail Forming Machine for Different Diameter Nails

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 Electroplating 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 Nail Making Machine M2-M10 Nail Forming Machine for Different Diameter Nails manufacturer

Nail Making Machine M2-M10 Nail Forming Machine for Different Diameter Nails

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 Electroplating 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 Full Automatic Nail Making Machine 3cNail Forming Machine for M3 Nails manufacturer

Full Automatic Nail Making Machine 3cNail Forming Machine for M3 Nails

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 Electroplating 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