Leading Chinese fastener equipment dealers!
Harbin Rainbow Technology Co., Ltd.
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- Hot Dip Galvanizing Line
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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 MMBtuWhat 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 : Fully automatic
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High capacity nut threading machine with 1/2 spindle for special nuts
Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China.
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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.
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High precision single spindle tapping machine for special long nut
Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China.
More
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.
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high speed nut part former for M12 special nut making machine with long stroke
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.
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Made in China 6 die nut making machine for standard nut former with PKO
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.
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Heavy duty nut and bolt making machine for SS hex nut former with servo motor
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.
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2026 Hot Sale 6 Station nut punching machine for M14 standard nut former with PKO
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.
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Taiwan quality 2 die 4 blow screw heading machine for M10 rivet making machine with servo motor
Place of Origin: China
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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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2026 hot sale 2 die 4 blow bolt making machine with high speed header for self tapping screws
Place of Origin: China
More
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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Full automatic 3 blow 6 die heading machine for stainless steel product with long service life
Place of Origin: China
More
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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New Rainbow High Precision Full Automatic Cold Heading Nut Forming Machine PLC Controlled Motor Engine Easy Operate 380V 20kw
- 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.
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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.
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2026 New Design Hardening Furnace for Hardware Continuous Heat Treatment Furnace with SCADA System
Composition entire heat treatment line as follows:
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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
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Rainbow High Productivity Automatic Screw Threading Machine Thread Roller PLC Controlled Standard Screw Bolt Making Construction
- High-Speed Operation: Produces up to 100 sets per month for efficient production.
- Durable Construction: Built for long-term use in construction workshops.
- Flat Die Design: Ensures precise thread rolling for screws and bolts.
- Customizable Options: Offers flexibility for various screw and bolt sizes.
- Reliable Warranty: One-year warranty for peace of mind.
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High Precision Automatic Flat Die Thread Rolling Machine for Bolt Screw
Model: CY06Z
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Diameter range: 3-6mm
Output: 165-185pcs/min
Max. thread length: 75mm
Moving die size: 90x105x25
Power: 4Kw
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Rainbow High Precision Full Automatic Cold Heading Nut Forming Machine with Motor & Engine Easy to Operate 380V 20kw CE
- 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.
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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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1 Die 2 Blow Screw Cold Heading Machine Automatic Bolt Maker - Harbin Rainbow
Place of Origin: China
More
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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Fully Automatic Multi Station Bolt Cold Forging machine CE
high quality hydraulic forging press bolt making machine power hammer cold forging machine
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High Speed Automatic Screw Making Machine CE
Place of Origin: China
More
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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Heat Treatment Furnace Industrial Mesh Belt Furnace -CE
Composition entire heat treatment line as follows:
More
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
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Electric Composite Contact Rivet Making Machine -Harbin Rainbow CE
Trimetal Composite Contact Cold Header can make six different metals be compounded together under cold state to produce composite contacts according to the technique requirements. Its working process includes the following steps: Sending two different kinds of metal wire into the machine firstly, transmitting them into the mould after being cut off. Then by two times upsetting process, the two kinds of metal become the composite contacts. Finally, the products retreat from the mould and enter into the finished product box.
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6 Station M18-M24 Nut Making Machine CE
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
