This two-die (two-roll) thread rolling machine is professional cold forming equipment designed for mass production of bolts, machine screws, studs and various threaded fasteners. It adopts the classic two-roller cold extrusion process to complete thread forming in one pass, with high forming efficiency, stable thread quality and low processing cost.

Equipped with an automatic feeding system and intelligent control unit, the machine realizes fully automatic production from raw material feeding to finished product discharging, significantly improving production efficiency and reducing labor input. Its heavy-duty cast steel body ensures stable operation under long-term continuous working conditions, making it ideal core equipment for small and medium-sized fastener manufacturing enterprises.

This automatic high-speed thread rolling machine is specialized cold forming equipment for mass production of bolts, screws, studs and various threaded fasteners. It adopts advanced cold thread rolling technology to realize a fully automatic workflow of feeding, thread forming and finished product discharging, which greatly improves production efficiency and reduces manual labor cost.

With a high-rigidity machine body and precision transmission structure, the equipment ensures stable thread precision and consistent forming quality, suitable for long-term continuous industrial production. It is widely recognized in the fastener manufacturing industry for its reliable performance, low failure rate and high cost-effectiveness.

This multi-station automatic nut cold heading machine is professional cold forging equipment for mass production of hex nuts, flange nuts, special-shaped nuts and standard fasteners. It adopts integrated cold forming process, realizing fully automatic workflow of wire feeding, cutting, heading and one-time forming, which effectively improves production efficiency and reduces labor cost.

With high-rigidity fuselage and precision transmission system, the equipment guarantees stable forming accuracy and long die service life. It is widely applied in fastener manufacturing industry for its reliable performance and high cost-effectiveness under long-term continuous operation.

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.

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

This M5 flat die thread rolling machine is professional cold forming equipment designed for high-volume production of small threaded fasteners such as machine screws, self-tapping screws and miniature bolts. It forms complete external threads by extruding metal blanks between two reciprocating flat thread dies, with no cutting chips generated in the process. Compared with traditional thread cutting, it delivers higher thread strength, better surface finish and over 95% material utilization.

The machine features a one-piece cast iron body with outstanding vibration absorption capacity, which guarantees stable operation at full speed and maintains long-term machining precision. It comes standard with an automatic vibratory feeding system that enables continuous unattended production, with a maximum output of 200 pieces per minute, effectively reducing labor input and improving production efficiency.

It is compatible with a wide range of materials including carbon steel, stainless steel, copper, aluminum and alloy steel. The finished threads have accurate pitch, smooth surface and excellent fatigue resistance, making it ideal for fastener factories, electronic hardware manufacturers and automotive parts suppliers. It can be paired with an M5 cold heading machine to form a complete small screw production line, providing a turnkey solution for fastener manufacturing.