Leading Chinese fastener equipment dealers!
Harbin Rainbow Technology Co., Ltd.
This high-performance automatic thread rolling machine adopts advanced cold forming technology to produce precision threads on bolts, screws, studs and other fastener workpieces without chip removal. Compared with traditional thread cutting, the cold rolling process rearranges the metal grain structure, improving thread tensile strength by over 20% and delivering a mirror-like surface finish.
Equipped with a high-rigidity cast iron body and precision-ground spindle system, the machine maintains stable rolling force under long-term high-speed operation, ensuring consistent pitch diameter accuracy across batch production. The unique feeding mechanism eliminates jamming and reduces die wear, while the centralized lubrication system extends service life and lowers maintenance costs.
Suitable for mass production in fastener manufacturing, automotive parts, construction hardware and mechanical processing industries, it supports processing of metric, UNC, UNF and ACME thread profiles. The machine features simple setup, quick die change and low energy consumption, helping customers significantly improve production efficiency and reduce per-unit manufacturing costs.
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


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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MoreThis multi-station cold heading machine is fully automatic cold forging equipment for fastener manufacturing. It can complete multiple forming processes in one machine, greatly improving production efficiency and reducing labor cost. The equipment runs stably with low failure rate, adopts precision casting body and high strength crankshaft structure, long service life. It can produce various standard bolts, screws, rivets, nuts and irregular special-shaped hardware without secondary cutting. Suitable for fastener factories, automotive hardware, construction fastener and electronics hardware workshops. We support customized station quantity, die size and production configuration according to customer workpiece requirements. We provide on-site installation guidance and long-term after-sales service.

Multi stations Metal Forging Machinery Cold Header Heading Machine Screw Making Machines cold heading machine price
MoreComposition 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
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
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
Multi stations Metal Forging Machinery Cold Header Heading Machine Screw Making Machines cold heading machine price
MoreMulti stations Metal Forging Machinery Cold Header Heading Machine Screw Making Machines cold heading machine price
Morehigh capacity,high precision,full automatic,cold forging machine, nut making machine
Morehigh capacity,high precision,full automatic,cold forging machine, nut making machine
Morehigh capacity,high precision,full automatic,cold forging machine, nut making machine
Morehigh capacity,high precision,full automatic,cold forging machine, nut making machine
MoreThis Z94 series high-speed automatic nail making machine is a professional industrial solution dedicated to mass production of common round wire nails. It adopts integrated cold forming technology, completing wire straightening, precision feeding, nail head heading, rod cutting and point forming automatically in one continuous workflow, effectively cutting manual labor cost and improving overall production efficiency.
The machine is built with a high-precision wire feeding mechanism and stable gear transmission system, featuring smooth material delivery, low running noise, low failure rate and long service life of core wearing parts. The heavy-duty cast iron body delivers excellent rigidity and shock absorption performance, ensuring stable and consistent operation even under long-term high-speed working conditions. Nail specifications can be flexibly adjusted by replacing corresponding molds, covering mainstream nail sizes for construction, woodworking and daily hardware scenarios.
Widely applied in hardware manufacturing factories, fastener production bases and nail processing enterprises, this nail making equipment can be linked with downstream polishing machines and packaging machines to form a complete automatic nail production line. We provide full-range technical support including installation guidance, operator training and lifelong spare parts supply, to secure stable and sustainable production for our global customers.
This automatic multi-station cold heading machine is a professional industrial solution designed for high-volume manufacturing of bolts, screws and various standard & non-standard fasteners. It integrates automatic wire feeding, precision cold forging, one-step forming and automatic discharging, delivering stable and efficient production performance for fastener factories and hardware manufacturing enterprises.
Built with a heavy-duty cast iron frame and precision transmission structure, the machine supports 24-hour uninterrupted operation with low failure rate and high forming consistency. It is compatible with carbon steel, stainless steel and other common metal materials, and features a quick die change design to flexibly switch between different bolt specifications.
We provide full-range services including pre-sales technical consultation, on-site installation guidance, operator training and long-term spare parts supply, to ensure stable production and minimize downtime for our customers.

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
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.