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.

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.

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

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

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

The thread rolling machine, also known as thread roller, is essential secondary forming equipment in the fastener manufacturing industry, matched with cold heading machines for complete screw and bolt production lines. This machine adopts advanced cold rolling forming technology, which extrudes and forms threads through two precision rolling dies, realizing one-time thread forming for screws, bolts, studs and other threaded fasteners.

Compared with traditional thread cutting processing, our thread rolling machine features higher processing efficiency, better thread finish and higher structural strength. The rolled thread has compact metal fiber structure, strong tensile resistance and not easy to crack. The whole machine adopts thickened cast iron frame and high-precision transmission parts, with stable operation, low vibration and low failure rate. It supports processing various metal materials including carbon steel, stainless steel, iron and alloy steel, covering conventional and fine thread specifications.

Equipped with automatic feeding and rolling control system, the equipment is easy to operate and suitable for long-term continuous mass production. It is widely applicable to produce drywall screws, self-tapping screws, machine bolts, stud bolts and other hardware fasteners. We provide professional equipment debugging, technical training and after-sales maintenance services, and can customize models according to customer production needs to meet different fastener processing requirements.

The thread rolling machine, also known as thread roller, is essential secondary forming equipment in the fastener manufacturing industry, matched with cold heading machines for complete screw and bolt production lines. This machine adopts advanced cold rolling forming technology, which extrudes and forms threads through two precision rolling dies, realizing one-time thread forming for screws, bolts, studs and other threaded fasteners.

Compared with traditional thread cutting processing, our thread rolling machine features higher processing efficiency, better thread finish and higher structural strength. The rolled thread has compact metal fiber structure, strong tensile resistance and not easy to crack. The whole machine adopts thickened cast iron frame and high-precision transmission parts, with stable operation, low vibration and low failure rate. It supports processing various metal materials including carbon steel, stainless steel, iron and alloy steel, covering conventional and fine thread specifications.

Equipped with automatic feeding and rolling control system, the equipment is easy to operate and suitable for long-term continuous mass production. It is widely applicable to produce drywall screws, self-tapping screws, machine bolts, stud bolts and other hardware fasteners. We provide professional equipment debugging, technical training and after-sales maintenance services, and can customize models according to customer production needs to meet different fastener processing requirements.

The thread rolling machine, also known as thread roller, is essential secondary forming equipment in the fastener manufacturing industry, matched with cold heading machines for complete screw and bolt production lines. This machine adopts advanced cold rolling forming technology, which extrudes and forms threads through two precision rolling dies, realizing one-time thread forming for screws, bolts, studs and other threaded fasteners.

Compared with traditional thread cutting processing, our thread rolling machine features higher processing efficiency, better thread finish and higher structural strength. The rolled thread has compact metal fiber structure, strong tensile resistance and not easy to crack. The whole machine adopts thickened cast iron frame and high-precision transmission parts, with stable operation, low vibration and low failure rate. It supports processing various metal materials including carbon steel, stainless steel, iron and alloy steel, covering conventional and fine thread specifications.

Equipped with automatic feeding and rolling control system, the equipment is easy to operate and suitable for long-term continuous mass production. It is widely applicable to produce drywall screws, self-tapping screws, machine bolts, stud bolts and other hardware fasteners. We provide professional equipment debugging, technical training and after-sales maintenance services, and can customize models according to customer production needs to meet different fastener processing requirements.

The 1 Die 2 Blow Screw Header (1D2B Cold Heading Machine) is a widely used automatic cold forming equipment for fastener manufacturing. Adopting one die and two blows forming principle, this machine is specially developed for shaping screw blanks, self-tapping screws, drywall screws and small bolt blanks.
Built with sturdy cast body and reliable transmission components, the equipment features stable operation, low vibration, low failure rate and easy maintenance. It can process carbon steel, stainless steel and other metal raw materials. Suitable for medium and small fastener factories for continuous mass production.
We support machine parameter customization and provide complete after-sales service including installation guidance, technical training and spare parts supply.

The 1 Die 2 Blow Screw Header (1D2B Cold Heading Machine) is a widely used automatic cold forming equipment for fastener manufacturing. Adopting one die and two blows forming principle, this machine is specially developed for shaping screw blanks, self-tapping screws, drywall screws and small bolt blanks.
Built with sturdy cast body and reliable transmission components, the equipment features stable operation, low vibration, low failure rate and easy maintenance. It can process carbon steel, stainless steel and other metal raw materials. Suitable for medium and small fastener factories for continuous mass production.
We support machine parameter customization and provide complete after-sales service including installation guidance, technical training and spare parts supply.

The 1 Die 2 Blow Screw Header (1D2B Cold Heading Machine) is a widely used automatic cold forming equipment for fastener manufacturing. Adopting one die and two blows forming principle, this machine is specially developed for shaping screw blanks, self-tapping screws, drywall screws and small bolt blanks.
Built with sturdy cast body and reliable transmission components, the equipment features stable operation, low vibration, low failure rate and easy maintenance. It can process carbon steel, stainless steel and other metal raw materials. Suitable for medium and small fastener factories for continuous mass production.
We support machine parameter customization and provide complete after-sales service including installation guidance, technical training and spare parts supply.

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!

• 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.

This automatic cold heading machine is professional cold forging equipment designed for mass production of fasteners and precision metal parts. Adopting mature cold forming technology, it completes workpiece head forming at room temperature without heating, which effectively cuts production cost and improves processing efficiency.

The equipment is built with a high-rigidity integral machine body, matched with precision die system and fully automatic wire feeding mechanism. It features stable high-speed operation, high forming dimensional accuracy and low failure rate, supporting continuous uninterrupted production, greatly reducing labor input and ensuring consistent quality of mass-produced products.

It is widely used in fastener manufacturing, automotive hardware, electronic components, construction hardware and other industries, suitable for producing bolts, screws, nuts, rivets, studs and various standard & non-standard special-shaped cold heading parts. We provide full services including pre-sales solution customization, on-site installation guidance and lifelong technical support to match different production demands of customers.

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.

This industrial continuous quenching furnace is professionally designed for the hardening, quenching and tempering heat treatment of metal fasteners (screws, nails, bolts, nuts) and small precision mechanical parts.

Adopting a high-efficiency thermal insulation structure and intelligent digital temperature control system, it ensures stable and uniform temperature inside the furnace, delivers consistent quenching hardness, and effectively reduces workpiece deformation and oxidation decarburization. The furnace body is built with heavy-duty heat-resistant materials and high-quality heating components for long service life and low failure rate.

With a continuous mesh belt conveying structure, the equipment supports uninterrupted mass production, significantly improves processing efficiency and cuts labor costs. It is widely used in fastener manufacturing, hardware processing, auto parts and other industries. Furnace specifications and process parameters can be fully customized according to actual production requirements.

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

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

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

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