Harbin Rainbow Technology designs and manufactures a full range of high-speed automatic flat die thread rolling machines for the global fastener industry. As core supporting equipment paired with cold heading machines in screw and bolt production lines, the CY series machines form threads through cold plastic deformation of metal workpieces, replacing traditional thread cutting process with superior thread density, wear resistance and dimensional accuracy.

Core Advantages

• Fully Automatic Production: Integrated with vibratory bowl feeding system, the machine runs continuously with minimal manual intervention. Small-diameter models reach a production speed of 165–185 pieces per minute, effectively improving output and reducing labor cost.
• High Forming Precision: Precision-ground alloy thread dies and stress-relieved heavy cast iron frame ensure consistent thread quality, fully compliant with ISO, DIN, ANSI and other international thread standards.
• Durable & Low Maintenance: Heavy-duty gearbox transmission with automatic lubrication system features low noise, high wear resistance and stable performance, suitable for long-term uninterrupted industrial operation.
• Full Model Coverage: The product line includes CY05X, CY06Z, CY10Z, CY16Z, CY30Z and other specifications, covering processing diameter from 3mm to 30mm, to match different capacity and specification demands of fastener factories.

With over 30 years of experience in the fastener equipment industry, Harbin Rainbow Technology provides one-stop production solutions including cold heading machines, wire drawing equipment and electroplating lines. All thread rolling machines are CE certified, backed by 12 months warranty, English operation guidance and lifelong after-sales technical support, and have been widely adopted by fastener manufacturers across the world.

Rainbow full production of Spring washer making machine. we have all sizes equipment for 3mm, up to above 33mm spring washers.

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 Electro plating 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!

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.

China manufacturer nuts and bolts cold forging machine power hammer forging hex bolt making machine

Net weight: 700kg
Cutter motor: 1.1Kw
Vibrator motor: 1.1Kw
Pump: 400W
Speed: 80-350 pieces/minute
Cutting speci: out dia 40-80mm;
               inner Dia 16mm

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

Rainbow full production of Spring washer making machine. we have all sizes equipment for 3mm, up to above 33mm spring washers.

Model: CY06Z
Diameter range: 3-6mm
Output: 165-185pcs/min
Max. thread length: 75mm
Moving die size: 90x105x25
Power: 4Kw

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

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

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

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 mesh belt heat treatment furnace is a continuous automatic production equipment specially developed for fastener hardware industry, widely applied for quenching, tempering, carburizing and carbonitriding of carbon steel, alloy steel fasteners including grade 8.8, 10.9, 12.9 high-strength bolts, nuts, studs and rivets.

Adopting thick reinforced furnace shell and multi-layer ultra-low heat loss refractory insulation structure, the equipment greatly reduces power consumption and long-term operation cost. Equipped with independent multi-zone PID temperature control system, it realizes ultra-uniform heating to ensure consistent hardness, toughness and mechanical performance of every batch fasteners, effectively avoiding defective products caused by temperature deviation.

The 310S high temperature resistant stainless steel mesh belt carries workpieces stably, matched with vector frequency conversion transmission to adjust feeding speed flexibly for different process requirements. We configure complete protective atmosphere system to keep fastener surface bright without oxidation and decarburization, eliminating post-processing polishing cost.

Whole set can be customized as single quenching furnace, single tempering furnace, or integrated quenching-tempering linkage production line according to your factory output and workshop layout. We provide one-stop service including scheme design, production, installation debugging, worker operation training and global after-sales engineer support. The machine runs stably for 24-hour mass production, which is the standard heat treatment equipment for medium and large fastener manufacturing factories worldwide.

Our automatic nut tapping machine is specialized equipment for internal thread tapping of all kinds of nuts, widely matched with cold heading machines in fastener production lines.

Main Product Advantages

1. High tapping precision, stable thread tolerance, low defective rate
2. Full-automatic feeding & tapping, greatly cut manual operation cost
3. Easy mold switching to produce different size nuts flexibly
4. Compact body structure, low failure rate and long service life

This tapping equipment is an essential matching machine for standard parts factories and hardware fastener manufacturers.

Our 3 Die 6 Blow cold heading machine is multi-station automatic cold forging equipment designed for mass production of screws, bolts and rivets. Adopting integrated die set and stable mechanical structure, it completes cutting, pre-forming and heading in one single procedure.

Features:

• High finished product precision, low material waste
• Stable running, long service life of moulds
• Suitable for various fastener raw materials
• Widely used in hardware & fastener manufacturing factory

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 speed nut former, nut making machine,nut forging machine to make hex,flange, nylock nut and special nut parts.