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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

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

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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...

Thread Rolling

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

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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...

What Is Cold Forming?

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Products
China 4 Station Bolt Making Machine manufacturer

4 Station Bolt Making Machine

Bolt Making Machine Supplier

China Multi Station Automatic Cold Heading Machine High Precision Bolt Nut Screw Fastener Cold Forging Former manufacturer

Multi Station Automatic Cold Heading Machine High Precision Bolt Nut Screw Fastener Cold Forging Former

Our RB series multi station cold heading machine is professional cold forging equipment specially designed for mass production of bolts nuts screws rivets and all kinds of standard and special fasteners. With advanced chipless cold forming technology the machine keeps complete metal grain flow of raw materials so finished fasteners own higher tensile strength and fatigue resistance compared with cutting processing which also saves raw material cost without any waste.

Equipped with multi station integrated forming structure the machine can finish multiple forming procedures in one single pass to greatly improve production efficiency and reduce manual operation cost. The whole machine body adopts one piece high grade cast iron with strong rigidity to ensure low vibration and stable running under long time 24 hour continuous working. Core forming molds are made of high wear resistant alloy steel with long service life and easy replacement.

This cold heading machine supports processing multiple metal materials including carbon steel stainless steel copper and aluminum. It can match different production demands of fastener factories hardware plants auto accessory manufacturers and construction hardware suppliers. We provide customized services including die matching voltage adjustment and production line layout design to fit different workshop conditions.

Harbin Rainbow Technology has more than 20 years experience in fastener machinery manufacturing. All machines will pass strict full inspection before delivery. We supply complete after sales service including remote video guidance online technical support and optional on site installation commissioning and worker training. Lifelong spare parts supply and technical consultation are available for all our clients all over the world.

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China Rainbow High Precision Full Automatic Cold Heading Nut Forming Machine PLC Controlled Motor Engine Easy Operate 380V manufacturer

Rainbow High Precision Full Automatic Cold Heading Nut Forming Machine PLC Controlled Motor Engine Easy Operate 380V

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

  • High-Power Performance: 20kw motor ensures efficient operation.
  • Durable Structure: Built for long-term use in hardware bolt nut factories.
  • User-Friendly Design: Easy-to-operate interface for smooth production workflow.
  • Reliable Warranty: 1-year warranty on key components for peace of mind.
  • Wide Application: Ideal for manufacturing bolts and nuts across various industries.
More
China Rainbow Fully Automatic 5 Station Bolt Maker Cold Forging Machine manufacturer

Rainbow Fully Automatic 5 Station Bolt Maker Cold Forging Machine

Model

Unit

RBF-105S

Forging force

Kgs

98000

Max cut-off dia

mm

12

Max cut off length

mm

133

Speed range

pcs/min

90-150

P.K.O Stroke

mm

20

K.O stroke

mm

110

Main slide stroke

mm

190

Main motor

kw

30

Cut-off die size

mm

45*59L

Punch die size

mm

53*115L

Main die size

mm

75*135L

Die pitch

mm

94

Main weight

kgs

20000

Normal bolt size

mm

6-10

Shank length of blank

mm

15-100

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China Rainbow Fully Automatic RBF-134L 4 Station Bolt Maker Cold Forging Machine manufacturer

Rainbow Fully Automatic RBF-134L 4 Station Bolt Maker Cold Forging Machine

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!

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China 2026 Hot Sale Multi-Station Fully Automatic Bolt Maker Cold Forging Machine manufacturer

2026 Hot Sale Multi-Station Fully Automatic Bolt Maker Cold Forging Machine

China manufacturer nuts and bolts cold forging machine power hammer forging hex bolt making machine

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China Rainbow Hot Sale Multi Station Cold Forging Machine Automatic Bolt Forming Machine manufacturer

Rainbow Hot Sale Multi Station Cold Forging Machine Automatic Bolt Forming Machine

Model

Unit

RBF-164S

RBF-204L RBF-254SL

Forging force

Kgs

220,000

380,000 450,000

Max cut-off dia

mm

18

23 26

Max cut off length

mm

195

240 255

Speed range

pcs/min

70-110

50-80 40-70

P.K.O Stroke

mm

30

45 35

K.O stroke

mm

170

220 215

Main slide stroke

mm

260

346 330

Main motor

kw

55

75 110

Cut-off die size

mm

60*90L

75*120L 80*130L

Punch die size

mm

75*185L

90*215L 120*270L

Main die size

mm

100*190L

125*240L 140*250L

Die pitch

mm

120

140 160

Main weight

kgs

40,000

62,000 103,000

Normal bolt size

mm

10-16

12-20 14-25.4

Shank length of blank

mm

20-150

25-200 35-200
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China Rainbow Automatic Bolt Cold Forging Machine Screw Multi Station Forming Machine manufacturer

Rainbow Automatic Bolt Cold Forging Machine Screw Multi Station Forming Machine

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

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China 3 Die 6 Blow Cold Heading Machine Automatic Screw Bolt Forming Machine manufacturer

3 Die 6 Blow Cold Heading Machine Automatic Screw Bolt Forming Machine

Our 3 Die 6 Blow cold heading machine is multi-station automatic cold forging equipment designed for mass production of screws, bolts and rivets. Adopting integrated die set and stable mechanical structure, it completes cutting, pre-forming and heading in one single procedure.

Features:

  • High finished product precision, low material waste
  • Stable running, long service life of moulds
  • Suitable for various fastener raw materials
  • Widely used in hardware & fastener manufacturing factory
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China Fully Automatic Multi Station Cold Upsetting machine manufacturer

Fully Automatic Multi Station Cold Upsetting machine

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

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China Fully Automatic 6 Station Cold Upsetting  machine manufacturer

Fully Automatic 6 Station Cold Upsetting machine

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

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China Stainless Steel Hex Bolt Cold Forging Machine Bolt Making Machine for Metal Parts manufacturer

Stainless Steel Hex Bolt Cold Forging Machine Bolt Making Machine for Metal Parts

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

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China RBF106S Hex Screw Bolt Making Machine Cold Forging Machine manufacturer

RBF106S Hex Screw Bolt Making Machine Cold Forging Machine

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

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China RBF106S Hex Screw Bolt Making Machine Cold Forging Machine with Inverter manufacturer

RBF106S Hex Screw Bolt Making Machine Cold Forging Machine with Inverter

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

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China 134L M12 Bolt Diameter Stainless Steel Bolt Making Machine Cold Forging Machine Bolt Maker with Inverter manufacturer

134L M12 Bolt Diameter Stainless Steel Bolt Making Machine Cold Forging Machine Bolt Maker with Inverter

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

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China Fully Automatic RBF-44S Bolt Making Machine 4 Station M4 Bolt Cold Forging Machine manufacturer

Fully Automatic RBF-44S Bolt Making Machine 4 Station M4 Bolt Cold Forging Machine

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 Rainbow China Manufacturer Fully Automatic Bolt Cold Forging Machine Screw Header Machine manufacturer

Rainbow China Manufacturer Fully Automatic Bolt Cold Forging Machine Screw Header Machine

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

More
China Rainbow High Precision Full Automatic Cold Heading Nut Forming Machine PLC Controlled Motor Engine Easy Operate 380V 20kw manufacturer

Rainbow High Precision Full Automatic Cold Heading Nut Forming Machine PLC Controlled Motor Engine Easy Operate 380V 20kw

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

  • High-Power Performance: 20kw motor ensures efficient operation.
  • Durable Structure: Built for long-term use in hardware bolt nut factories.
  • User-Friendly Design: Easy-to-operate interface for smooth production workflow.
  • Reliable Warranty: 1-year warranty on key components for peace of mind.
  • Wide Application: Ideal for manufacturing bolts and nuts across various industries.
More
China New Rainbow High Precision Full Automatic Cold Heading Nut Forming Machine PLC Controlled Motor Engine Easy Operate 380V 20kw 1 manufacturer

New Rainbow High Precision Full Automatic Cold Heading Nut Forming Machine PLC Controlled Motor Engine Easy Operate 380V 20kw 1

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

  • High-Power Performance: 20kw motor ensures efficient operation.
  • Durable Structure: Built for long-term use in hardware bolt nut factories.
  • User-Friendly Design: Easy-to-operate interface for smooth production workflow.
  • Reliable Warranty: 1-year warranty on key components for peace of mind.
  • Wide Application: Ideal for manufacturing bolts and nuts across various industries.
More
China Fully Automatic 6 Station Bolt Forging machine -2026 New Design manufacturer

Fully Automatic 6 Station Bolt Forging machine -2026 New Design

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

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China Fully Automatic Multi Station Bolt Cold Forging machine  CE manufacturer

Fully Automatic Multi Station Bolt Cold Forging machine CE

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

More
China Fully Automatic Multi Station Forging Machine CE manufacturer

Fully Automatic Multi Station Forging Machine CE

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

More
China Fully Automatic Bolt Cold Forging machine -2026 New Design manufacturer

Fully Automatic Bolt Cold Forging machine -2026 New Design

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

More
China Fully Automatic Bolt Forging machine -2026 New Design manufacturer

Fully Automatic Bolt Forging machine -2026 New Design

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

More
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