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Harbin Rainbow Technology Co., Ltd.Address:C2-02 Handi Building,Songbei Distr.,Harbin,ChinaPostal Code:150028Web site address:http://www.fastenerequip... Contact Now
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Difference between hot dip zinc and hot dip galvanising

Hot-dip zincing and hot-dip galvanising are two different processes for corrosion protection of metals, with hot-dip zincing usually providing better ...

What is Cold Forging – Cold Forging Process, Materials, Uses, Advantages & Disadvantages

Analysis of the principle and function of spring washers

In all kinds of mechanical connections, the anti-loosening of bolts is a very important link, and there are many ways to prevent loosening of bolts in...

High speed installation cold forging machine bolts and nuts making machine for screw

Working principle of nut tapping machine

Nut tapping machine is a kind of machining equipment that processes internal threads, screws or teeth buckles on the inner side of the holes of variou...

Max diameter one key molding nut drilling machine 2 spindle nut tapping machine

Nut tapping machine is a kind of mechanical processing equipment that processes internal threads, screws or teeth in the inner side of the holes of th...

Hot popular Cold Forging machine bolt forming machine with inveter for good design

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China. We have invested one Cold former factory(...

What's self-tapping screw?

Self-tapping screws: similar to machine screws, but the threads on the screw for special self-tapping screws with threads. Used to fasten the connecti...

China factory price and Advanced Automatic Screw Maker Thread Rolling Machine

Product Descriptionview more >>Frequently bought togetherHigh Speed Thread Rolling Machine Factory Price Thread Roller Hot Sale Thread Machine$4,800.0...

hot forging furnace induction heating machine ipsen furnace mesh belt

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China. We have invested one Cold former factory(...

Keywords : High Precision

China Full automatic 4 station bolt maker in low price manufacturer

Full automatic 4 station bolt maker in low price

China manufacturer nuts and bolts cold forging machine power hammer forging hex bolt making machine More
China China factory automatic screw making machine rivet producing machine manufacturer

China factory automatic screw making machine rivet producing machine

Heading Machine
Model RSH8-250
Max. Blank Diameter (mm) 8
Max. Blank Length (mm) 250
Max. Cut off Length (mm) 270
Stroke (mm) 290
Output (Pcs/Min) 30-45
Main Die Diameter (mm) Φ60X290
Punch Die Diameter (1st) (mm) Φ40X150
Punch Die Diameter (2nd) (mm) Φ40X150
Cut off Die Diameter (mm) Φ28X60
Cutter Size (mm) 12X42X90
Main Motor Power (KW) 10HP/7.5KW
Machine Size (L*W*H) (m) 4.30X1.60X1.90
Approx Weight (Kgs) 7800 More
China China manufacturer nail making machine screw making machine rivet producing machine manufacturer

China manufacturer nail making machine screw making machine rivet producing machine

Heading Machine
Model RSH12-250
Max. Blank Diameter (mm) 12
Max. Blank Length (mm) 250
Max. Cut off Length (mm) 270
Stroke (mm) 300
Output (Pcs/Min) 30-40
Main Die Diameter (mm) Φ88X330
Punch Die Diameter (1st) (mm) Φ60X180
Punch Die Diameter (2nd) (mm) Φ60X180
Cut off Die Diameter (mm) Φ45X60
Cutter Size (mm) 18X60X125
Main Motor Power (KW) 25HP/18.5KW
Machine Size (L*W*H) (m) 5.20X1.90X1.80
Approx Weight (Kgs) 15000 More
China China good factory price bolt thread rolling machine screw making machine manufacturer

China good factory price bolt thread rolling machine screw making machine

CY20Z Thread Rolling Machine 

Model CY20Z
Diameter Range (mm) 14-20
Screw Length (mm) 200/300
Max. Thread Length (mm) 150
Moving Die Size (mm) 290/330/50
Main Motor (KW) 37
Output (Pcs/Min) 40-50
Approx Weight (kg) 14000
Machine Size (L*W*H)(mm) 2200×4700×2200 More
China China good factory produce screw bolt nut thread rolling machine manufacturer

China good factory produce screw bolt nut thread rolling machine

CY06Z Thread Rolling Machine 

Model CY06Z
Diameter Range (mm) 3-6
Screw Length (mm) 50/75
Max. Thread Length (mm) 75
Moving Die Size (mm) 90/105/25
Main Motor (KW) 4
Output (Pcs/Min) 160-185
Approx Weight (kg) 1500
Machine Size (L*W*H)(mm) 1800×1500×1700 More
China China factory produce good price screw and bolt thread rolling machine manufacturer

China factory produce good price screw and bolt thread rolling machine

CY20Z Thread Rolling Machine 

Model CY20Z
Diameter Range (mm) 14-20
Screw Length (mm) 200/300
Max. Thread Length (mm) 150
Moving Die Size (mm) 290/330/50
Main Motor (KW) 37
Output (Pcs/Min) 40-50
Approx Weight (kg) 14000
Machine Size (L*W*H)(mm) 2200×4700×2200 More
China China factory good price and quality bolt thread rolling machine manufacturer

China factory good price and quality bolt thread rolling machine

CY16Z Thread Rolling Machine 

Model CY16Z
Diameter Range (mm) 12-16
Screw Length (mm) 150/200/300
Max. Thread Length (mm) 100
Moving Die Size (mm) 230/265/38
Main Motor (KW) 22
Output (Pcs/Min) 45-60
Approx Weight (kg) 6700
Machine Size (L*W*H)(mm) 3500×1900×2200 More
China China factory rainbow technology good price automatic thread rolling machine manufacturer

China factory rainbow technology good price automatic thread rolling machine

CY16Z Thread Rolling Machine 

Model CY16Z
Diameter Range (mm) 12-16
Screw Length (mm) 150/200/300
Max. Thread Length (mm) 100
Moving Die Size (mm) 230/265/38
Main Motor (KW) 22
Output (Pcs/Min) 45-60
Approx Weight (kg) 6700
Machine Size (L*W*H)(mm) 3500×1900×2200 More
China Extra long automatic 4 station bolt making machine manufacturer

Extra long automatic 4 station bolt making machine

China manufacturer nuts and bolts cold forging machine power hammer forging hex bolt making machine More
China Design Free  fast speed Gas-electric Hybrid Heating Mesh Belt Furnace Heat Treatment Equipment manufacturer

Design Free fast speed Gas-electric Hybrid Heating Mesh Belt Furnace Heat Treatment Equipment

China Strong practicality  high speed Z94-6A type for nails and screws spring washer machine manufacturer

Strong practicality high speed Z94-6A type for nails and screws spring washer machine

27 可添加模块Product Description More
China Environmental friendly and carbon steel   used plant equipment zinc spray equipment manufacturer

Environmental friendly and carbon steel used plant equipment zinc spray equipment

China Good function spring making machine with spring cutting machine manufacturer

Good function spring making machine with spring cutting machine

Product Description More
China Factory direct supply spring washer machine High speed spring washer making machine manufacturer

Factory direct supply spring washer machine High speed spring washer making machine

Product Description More
China Fully automatic M6-8 spring making machine spring coiling machine for springs manufacturer

Fully automatic M6-8 spring making machine spring coiling machine for springs

Product Description More
China good price metal & metallurgy machinery nail making machine manufacturer

good price metal & metallurgy machinery nail making machine

Nail making machine This machine is advanced in design, compact in structure, beautiful in appearance, easy to use, safe in operation, high speed and ... More
China RBF series 4 stations air hammer forging screw making machine metal forging bolt making machine manufacturer

RBF series 4 stations air hammer forging screw making machine metal forging bolt making machine

China manufacturer nuts and bolts cold forging machine power hammer forging hex bolt making machine More
China High quality Automatic Screw Manufacturing Machine Best Price Power Hammer Nut Making Machine manufacturer

High quality Automatic Screw Manufacturing Machine Best Price Power Hammer Nut Making Machine

high capacity,high precision,full automatic,cold forging machine, nut making machine More
China Full automatic 4 station bolt making machine for extra long products manufacturer

Full automatic 4 station bolt making machine for extra long products

China manufacturer nuts and bolts cold forging machine power hammer forging hex bolt making machine More
China Full automatic nylon nut washer crimping machine factory price manufacturer

Full automatic nylon nut washer crimping machine factory price

The nylon nut washer inserting machine produced by Rainbow is suitable for Nylon Lock Nut, Anti-Loosing Nut etc. we have big share in domestic market,... More
China High capacity nylon nut washer assembly machine for sale manufacturer

High capacity nylon nut washer assembly machine for sale

The nylon nut washer inserting machine produced by Rainbow is suitable for Nylon Lock Nut, Anti-Loosing Nut etc. we have big share in domestic market,... More
China well quality screw manufacturing machine on sale manufacturer

well quality screw manufacturing machine on sale

Harbin Rainbow Technology Co., Ltd. is a leading fastener equipments supplier in China. The main business is manufacturing cold forging machine, such as Bolt Maker, Nut Maker, Heading Machine, Thread Rolling Machine, Wire Drawing Machine and Mesh Belt Furnace,Zinc Plating Machine, etc.



We have established reputation in countries such as India, US, Europe and Southeast Asia where we have core customer bases. Meanwhile, we are well respected by the domestic factories and the customers in the mechanical and electrical business.



We have the confidence, backed by our professional knowledge and experience in the mechanical and electrical business, to develop the foreign markets for our home enterprises and to open up the Chinese markets for the companies abroad.



Nowadays, more and more reputed companies compete in a long-term cooperation with us. That‘s why we can provide our customers with the best quality products, the bes More
China extra long zinc plating line high efficiency electroplating machine manufacturer

extra long zinc plating line high efficiency electroplating machine

China Chinese Manufacturer Metal Forging Machinery 6 Stations Pneumatic Forging Nut Making Machine manufacturer

Chinese Manufacturer Metal Forging Machinery 6 Stations Pneumatic Forging Nut Making Machine

high capacity,high precision,full automatic,cold forging machine, nut making machine More