Leading Chinese fastener equipment dealers!
Harbin Rainbow Technology Co., Ltd.
Harbin Rainbow Technology Co.,Ltd.---Cold Forging Machine China Factory
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
Screw Making Machine, Bolt Maker, Nut Maker, Cold Heading Machine, Thread Rolling Machine,
Cold Forging Machine, Rivet Making Machine, Nail Making Machine, Nut Tapping Machine,
Spring Washer Machine, Wire Drawing Machine, Heat Treatment Furnace and Zinc Plating line, etc.
to customers all over the world.
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
Free design,Provide quotation list, process chart, lay out drawing, video to see more details
We have specialized in surface treatment equipment for more than 20 years.
If you have any requirement, please let me know. Avril@rainbowtechnology.net
Harbin Rainbow Technology Co.,Ltd.---Cold Forging Machine China Factory
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
Screw Making Machine, Bolt Maker, Nut Maker, Cold Heading Machine, Thread Rolling Machine,
Cold Forging Machine, Rivet Making Machine, Nail Making Machine, Nut Tapping Machine,
Spring Washer Machine, Wire Drawing Machine, Heat Treatment Furnace and Zinc Plating line, etc.
to customers all over the world.
MoreHarbin Rainbow Technology Co.,Ltd.---Cold Forging Machine China Factory
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
Screw Making Machine, Bolt Maker, Nut Maker, Cold Heading Machine, Thread Rolling Machine,
Cold Forging Machine, Rivet Making Machine, Nail Making Machine, Nut Tapping Machine,
Spring Washer Machine, Wire Drawing Machine, Heat Treatment Furnace and Zinc Plating line, etc.
to customers all over the world.
MoreHarbin Rainbow Technology Co.,Ltd.---Cold Forging Machine China Factory
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
Screw Making Machine, Bolt Maker, Nut Maker, Cold Heading Machine, Thread Rolling Machine,
Cold Forging Machine, Rivet Making Machine, Nail Making Machine, Nut Tapping Machine,
Spring Washer Machine, Wire Drawing Machine, Heat Treatment Furnace and Zinc Plating line, etc.
to customers all over the world.
MoreThis industrial fastener hardening and quenching furnace is purpose-built for the heat treatment of standard and custom fasteners — including bolts, screws, nuts, and rivets. Its continuous feed design enables uninterrupted high-volume production, delivering significant gains in throughput and reduced labor costs for fastener manufacturing operations.
It features a multi-zone heating architecture paired with high-precision PID temperature control, delivering exceptional temperature uniformity across the entire work chamber. This ensures consistent hardness, tensile strength, and mechanical properties across every batch of fasteners. The furnace lining is constructed from premium refractory fiber insulation, minimizing heat loss and cutting energy consumption by over 20% relative to conventional quenching furnaces.
The system supports both water-quench and oil-quench configurations to accommodate process requirements for carbon steel, alloy steel, and stainless steel fasteners. A fully integrated PLC control system with touchscreen HMI provides real-time temperature monitoring, fault diagnostics, and production data logging. Easy to operate and maintain, this furnace delivers a stable, reliable, and cost-effective heat treatment solution for fastener production

Our automatic high speed nail making machine is professional equipment for manufacturing all kinds of steel wire nails. It integrates wire straightening, feeding, cutting, head punching and nail discharging into one fully automatic continuous process. Compared with traditional processing, it features higher production efficiency, lower material waste and more stable nail quality. It is ideal for hardware factories, building material manufacturers and nail production plants.
Our automatic cold heading machine adopts one-die two-blow cold forming technology to produce various screw and bolt heads through cold extrusion of metal wire. It integrates automatic wire feeding, cutting, heading and discharging to realize fully continuous mass production. Compared with traditional machining, the cold heading process generates no material waste, delivers higher production efficiency, and produces formed heads with better mechanical strength. It is ideal equipment for fastener manufacturing plants, hardware factories and automotive fastener suppliers.
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
Model: CY06Z
Diameter range: 3-6mm
Output: 165-185pcs/min
Max. thread length: 75mm
Moving die size: 90x105x25
Power: 4Kw
Various types of thread rolling machine to meet your various needs.
MoreVarious types of thread rolling machine to meet your various needs.
MoreVarious types of thread rolling machine to meet your various needs.
MoreVarious types of thread rolling machine to meet your various needs.
MoreVarious types of thread rolling machine to meet your various needs.
MoreVarious types of thread rolling machine to meet your various needs.
MoreThis automatic thread rolling machine is specialized equipment for producing external threads on bolts, screws and other cylindrical workpieces. It adopts cold rolling forming technology, which can complete thread processing in one pass with high efficiency and excellent thread surface quality.
The machine features a heavy-duty rigid frame and premium core components, ensuring stable long-term operation and consistent forming accuracy. It can be seamlessly matched with cold heading machines, tapping machines and other auxiliary equipment to form a fully automatic fastener production line.
We support customized configuration according to your workpiece size, production capacity and technical requirements. Welcome to contact us for detailed technical specifications and factory-direct quotation.
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