Our automatic nut making machine adopts robust frame structure to realize nut cold forming. It can produce various nuts with high consistency. Simple operation and long service life, perfect for fastener manufacturing plants.

Our automatic nut making machine adopts robust frame structure to realize nut cold forming. It can produce various nuts with high consistency. Simple operation and long service life, perfect for fastener manufacturing plants.

This multi‑station nut part former is designed for cold forming various standard nuts. It delivers high production capacity with stable running performance. Low maintenance cost, widely adopted in fastener workshops for mass nut manufacturing.

This automatic multi‑spindle nut tapping machine is specially developed for fastener nut internal thread processing. Featuring stable performance, high tapping speed and easy operation, the equipment is widely used for mass production of various standard nuts. It can replace imported type machines, effectively lowering your production cost.

This automatic multi‑spindle nut tapping machine is specially developed for fastener nut internal thread processing. Featuring stable performance, high tapping speed and easy operation, the equipment is widely used for mass production of various standard nuts. It can replace imported type machines, effectively lowering your production cost.

This automatic multi‑spindle nut tapping machine is specially developed for fastener nut internal thread processing. Featuring stable performance, high tapping speed and easy operation, the equipment is widely used for mass production of various standard nuts. It can replace imported type machines, effectively lowering your production cost.

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.

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.

Harbin Rainbow Technology Co., Ltd. is one of the largest fastener equipment dealers and manufacturers in China. We have more than 30 years of experience in supplying various fastener equipment to customers around the world, such as bolting machines, nut machines, cold heading machines, thread rolling machines, wire drawing machines, heat treatment furnaces and galvanizing wires, etc.

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.

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.