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two die four blow cold forging machine
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wire drawing machine
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Bi-metal Rivet machine
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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 : Fully automatic

China Chrome plating machine, Chrome plating equipment, Chrome plating equipment manufacturer

Chrome plating machine, Chrome plating equipment, Chrome plating equipment

China Barrel plating line, rack plating line, electroplating machine manufacturer

Barrel plating line, rack plating line, electroplating machine

China Electroplating machine/ Electroplating line/ Acid or alkaline zinc plating line equipment manufacturer

Electroplating machine/ Electroplating line/ Acid or alkaline zinc plating line equipment

China Automatic One Die Two Blow Screw Cold Heading Machine manufacturer

Automatic One Die Two Blow Screw Cold Heading Machine

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 WELL TYPE ELECTRIC ANNEALING FURNACE  China supplier manufacturer

WELL TYPE ELECTRIC ANNEALING FURNACE China supplier

WELL TYPE ELECTRIC ANNEALING FURNACE  Application: Mainly applied in spheroidizing annealing for wire coil of low-carbon steel, alloy steel, and bearing... More
China 5 stations bolt making cold forging machine China supplier manufacturer

5 stations bolt making cold forging machine China supplier

PRODUCT DESCRIPTION:       MODEL     RBP-165S               FORGING STATION(NO)      5               FORGING FORCE(KGS)      220               CUT-OF... More
China Bolt /Screw end cutting/drilling machine China supplier manufacturer

Bolt /Screw end cutting/drilling machine China supplier

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 More
China Screw Cold Heading machine manufacturer

Screw Cold Heading machine

alient Features The latest design, beautiful appearance, high speed, high efficiency, low energy consumption, easy to operate. Important components, s... More
China washer assembling machine  China supplier manufacturer

washer assembling machine China supplier

rational price,easy maintenance high quality
axial and radial process
process regular and irregular
Washer assembling machine with thread roller:
this model is widely praised for its rational price,easy maintenance
and hgih quality.besides axial and radial process it is used to process regular
and irregular bolt,through screw etc.with optional embossing roller.the through
screw made with this machine in zhejiang standard parts base has exported to US,Canada and Europe. More
China Nut slotting machine manufacturer

Nut slotting machine

Model: RCP-08B
Motor Power: 1HP  
Hopper Size(mm): 250X 300
Cutting oil(L): 80
Speed: 250pcs/min
Dimension(MM): 800X600X1000
Weight(KG): 850 More
China Automatic Screw Cold Heading Machine China Supplier manufacturer

Automatic Screw Cold Heading Machine China Supplier

Model: HRS series
Max.dia: 10mm
Max.blank length: 150mm
Itinerary: 220mm
Output: 60-200pcs per minute
Mold diameter: 55mm
Display diameter: 28mm
Oil pump: 0.25kW More
China Continuous mesh belt furnace China supplier manufacturer

Continuous mesh belt furnace China supplier

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 More
China Spring washer maker manufacturer

Spring washer maker

Spring washer machine it include three steps :
1 step,drawing the round wire to belt wire machine.
2 step,rolling up machine.
3 step, cutting machine. More
China Tapping machine manufacturer

Tapping machine

Nut type:
Hex nut
Flang nut
Square nut More
China automatic counting and packing machine manufacturer

automatic counting and packing machine

Machine Instruction: The vibration disk, linear vibration collating unit and precise counting control unit are customized according to the screw sampl... More
China HSD-30 series Bi-metal rivet machine manufacturer

HSD-30 series Bi-metal rivet machine

Bimetal composite contact cold header is the key equipment manufacturing composite contacts.It can make 6 different metals be compounded together unde... More
China RSH series Heading machine manufacturer

RSH series Heading machine

alient Features The latest design, beautiful appearance, high speed, high efficiency, low energy consumption, easy to operate. Important components, s... More
China Heat treatment furnace Continuous Mesh-belt furnace manufacturer

Heat treatment furnace Continuous Mesh-belt furnace

The whole set heat treatment line is composed of:
Automatic Feeding Machine → Front Washer →
Hardening Furnace → Oil quenching tank →
Rear Washer → Tempering furnace →
Electric Control Cabinet, etc.
The buyer can compose the treatment line flexiblely due to different demands More
China RBF-84S bolt former/cold forging /bolt maker manufacturer

RBF-84S bolt former/cold forging /bolt maker

Product Description: Application territory:        Auto multi-station cold former is a speciallized machine tool with high efficiency and automation a... More
China M16 5 station bolt making machine manufacturer

M16 5 station bolt making machine

PRODUCT DESCRIPTION:       MODEL     RBP-165S               FORGING STATION(NO)      5               FORGING FORCE(KGS)      220               CUT-OF... More
China Heat treatment furnace/Electric furnace/electric heating quenching furnace manufacturer

Heat treatment furnace/Electric furnace/electric heating quenching furnace

The whole set heat treatment line is composed of:
Automatic Feeding Machine → Front Washer →
Hardening Furnace → Oil quenching tank →
Rear Washer → Tempering furnace →
Electric Control Cabinet, etc.
The buyer can compose the treatment line flexiblely due to different demands More
China RBF-84S bolt making machine manufacturer

RBF-84S bolt making machine

Product Description: Application territory:        Auto multi-station cold former is a speciallized machine tool with high efficiency and automation a... More
China fully automatic counting and packing machine manufacturer

fully automatic counting and packing machine

Machine Instruction: The vibration disk, linear vibration collating unit and precise counting control unit are customized according to the screw sampl... More
China Heat treatment furnace/Tempering furnace manufacturer

Heat treatment furnace/Tempering furnace

The whole set heat treatment line is composed of:
Automatic Feeding Machine → Front Washer →
Hardening Furnace → Oil quenching tank →
Rear Washer → Tempering furnace →
Electric Control Cabinet, etc.
The buyer can compose the treatment line flexiblely due to different demands More