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COLD FORMING EQUIPMENT FOR SELF TAPPING SCREWS AND RIVETS

 

SELF TAPPING SCREWS PRODUCTION

различные саморезы

Taiwan Fastener Alliance offers a wide range of cold heading and thread rolling equipment for the production of self-tapping screws. In order to correctly select the model and set of equipment for self-tapping screws, which will guarantee the output of products for which there is a great demand in the market, you must specify:

  • The diameter of the product.
  • The length of the produced product.
  • Specify the presence of a drill.
  • Specify the type of screw, its purpose (wood, metal, concrete, roofing, window).
  • Give drawing, photo or specify DIN or GOST standard.
Equipment for the production of self-tapping screws and screws

EQUIPMENT FOR COLD HEADING SELF TAPPING SCREWS IN A PROTECTION COVER

  • Thanks to the fully sealed design, the cased cold heading machines have the lowest noise level and the highest environmental performance.
  • The service life of the cold forming machines and machine tools is much longer due to the exclusion of dust or foreign objects entering the machine.
  • Cold heading equipment with a protective cover guarantees maximum protection of the operating personnel. This is ensured due to several design features of the machines: a closed oil tank completely excludes ignition from the effects of an open flame or sparks in the workshop, safety sensors will perform an emergency shutdown of the equipment in the event of unauthorized access inside the machines and in the event of abnormal situations in operation, connecting the exhaust ventilation to the machine removes the arising in the process of cold disembarkation of fumes.
  • Advanced control of cold heading parameters.
  • Maximum standard and optional configurations.

Complete set of equipment for self tapping screws production

Standard equipment

  • 1 set of machine tools
  • Wire unwinder
  • Automatic counting device
  • Work lighting
  • Maintenance tools
  • Passport
  • Operation manual in English
  • Electrical cabinet (with protection class IP 64)


Additional equipment (optional)

  • Security door with power cut-off and automatic shutdown system (option)
  • Inverter (optional)
  • The conveyor for chip removal
  • Certification CE



A range of cold heading equipment for the production of self-tapping screws and screws

Cold heading machine in protective housing Model RA-2C
RA-2C
Cold heading machine in protective cover Model RA-5.5C
RA-5.5C
Cold heading machine in protective housing Model RA-10C
RA-10C
cold heading machine RA-15C with an installed conveyor for unloading parts
RA-15C with an unloading conveyor
cold punching equipment RA-20Cx76 with an installed conveyor for unloading parts
RA-20Cx76 with an unloading conveyor
Cold heading machine in protective housing RA-25C
RA-25C


Technical characteristics of equipment for production of self-tapping screws and bolts

Model Max. blank diameter Max.blank length The stroke length of the slide Capacity, pcs./min. Diameter of the main die Diameter of the cutting die The first punch The second punch Power of main engine Oil pump Dimensions,
L×W×H, сm		 Net weight, kg Gross Weight , kg
RA-2C 0.8~3 mm 24 mm 38 mm 190~220 20 mm 13.5 mm 18 mm 18 mm 1 HP ¼ HP 165×110×156 860 930
RA-5.5C 2~3.5 mm 28 mm 46 mm 200~250 25 mm 13.5 mm 18 mm 18 mm 1 HP ¼ HP 175×115×185 980 1050
RA-10C 2~4 mm 32 mm 58 mm 190~220 30 mm 15 mm 24 mm 20 mm 2 HP ¼ HP 185×130×200 1060 1360
RA-15C 4~5 mm 64 mm 92 mm 150~180 34.5 mm 19 mm 31 mm 31 mm 2 HP ¼ HP 198×130×175 1930 2130
RA-15C 4~5 mm 76 mm 110 mm 150~180 34.5 mm 19 mm 31 mm 31 mm 2 HP ¼ HP 198×130×175 2030 2230
RA-20C 4~6 mm 76 mm 124 mm 80~100 45 mm 25 mm 36 mm 36 mm 3 HP ¼ HP 240×140×150 2775 2280
RA-20C 4~6 mm 102 mm 160 mm 80~100 45 mm 25 mm 36 mm 36 mm 3 HP ¼ HP 265×140×188 3250 3400
RA-25C 4~8 mm 152 mm 160 mm 65~85 60 mm 32 mm 38 mm 38 mm 7 ½ HP ¼ HP 350×160×180 4500 4650

For more information on cold heading machines in a protective casing, see the page.






COLD HEADING EQUIPMENT FOR SELF TAPPING SCREWS IN A SEMI-PROTECTION COVER

Models of cold heading equipment for the production of screws with semi-protection cover is relatively easier to operate compared to models in a protective cover, and more environmentally friendly. Currently, this equipment is the most popular choice among our clients. Cold forging equipment for the semi-protective cover are represented by machines of large and medium size, ideal for the production of high-quality large and microscopic screws used in machinery, automotive, photo-electronics, precision electronics (iPhone), electrical engineering, automotive industry and others. Fasteners of this equipment can withstand shock and vibration.


RA-5S
RA-5S
RA-5.5S
RA-5.5S
RA-10S
RA-10S
RA-15S
RA-15S
RA-20S
RA-20S


Technical characteristics of equipment for production of self tapping screws and bolts

Model Max.blank diameter Max.blank length The stroke length of the slide Performance,
pcs./min.		 Diameter of the main die Diameter of the cutting die The first punch The second punch Drive power Oil pump Dimensions
L×W×H, mm		 Net weight, kg Gross weight, kg
RA-5S 0.8-3 mm 24 mm 38 mm 170~200 20 mm 13.5 mm 18 mm 18 mm 1 HP ¼ HP 1650×1100×1560 820 880
RA-5.5S 2-3.5 mm 28 mm 46 mm 200~250 25 mm 13.5 mm 18 mm 18 mm 1 HP ¼ HP 1750×1150×1550 980 1050
RA-10S 2-4 mm 32 mm 58 mm 190~220 30 mm 15 mm 24 mm 20 mm 2 HP ¼ HP 1850×1300×1720 1050 1160
RA-15S 4-5 mm 64 mm 92 mm 150~180 34.5 mm 19 mm 31 mm 31 mm 2 HP ¼ HP 2100×1100×1320 1750 1840
RA-15S 4-5 mm 76 mm 110 mm 150~180 34.5 mm 19 mm 31 mm 31 mm 2 HP ¼ HP 2100×1100×1320 1860 1980
RA-20S 4-6 mm 76 mm 124 mm 90~110 45 mm 25 mm 36 mm 36 mm 3 HP ¼ HP 2400×1400×1500 2645 2750
RA-20S 4-6 mm 102 mm 156 mm 80~100 45 mm 25 mm 36 mm 36 mm 3 HP ¼ HP 2650×1500×1500 3210 3360



EQUIPMENT FOR COLD HEADING (PRODUCTION) OF SELF TAPPING SCREWS WITHOUT A PROTECTION COVER

 

RA-5.5
RA-5
RA-5.5
RA-5.5
RA-10
RA-10
RA-15
RA-15
RA-20
RA-20


Technical Specification of Equipment for the production of self tapping screws and bolts

Model Max.blank diameter Max.blank length The stroke length of the slide Performance,
pcs./min.		 Diameter of the main die Diameter of the cutting die The first punch The second punch Drive power Oil pump Dimensions
L×W×H, mm		 Net weight, kg Gross weight, kg
RA-5 0.8-3 mm 24 mm 38 mm 170~200 20 mm 13.5 mm 18 mm 18 mm 1 HP ¼ HP 1370×840×1020 500 560
RA-5.5 2-3.5 mm 28 mm 46 mm 200~250 25 mm 13.5 mm 18 mm 18 mm 1 HP ¼ HP 1750×1100×1600 780 860
RA-10 2-4 mm 32 mm 58 mm 190~220 30 mm 15 mm 24 mm 20 mm 2 HP ¼ HP 1690×1090×1260 960 1060
RA-15 4-5 mm 64 mm 92 mm 150~180 34.5 mm 19 mm 31 mm 31 mm 2 HP ¼ HP 2100×1100×1320 1640 1750
RA-15 4-5 mm 76 mm 110 mm 150~180 34.5 mm 19 mm 31 mm 31 mm 2 HP ¼ HP 2100×1100×1320 1750 1860
RA-20 4-6 mm 76 mm 124 mm 90~110 45 mm 25 mm 36 mm 36 mm 3 HP ¼ HP 2400×1400×1500 2400 2500
RA-20 4-6 mm 102 mm 156 mm 90~110 45 mm 25 mm 36 mm 36 mm 3 HP ¼ HP 2400×1400×1500 2400 2500
RA-25 4-8 mm 102 mm 160 mm 65~85 60 mm 32 mm 38 mm 38 mm 7 ½ HP ¼ HP 3500×1510×1350 4000 4150
RA-30 10 mm 152 mm 230 mm 52~60 80 mm 40 mm 55 mm 55 mm 15 HP ½ HP 4450×1740×1510 7000 7000
RA-40 13 mm 152 mm 230 mm 50~60 98 mm 48 mm 68 mm 68 mm 30 HP ½ HP 5000×2050×1800 12000 12000





ORDER-MADE COLD HEADING TOOL FOR MAKING SCREWS, SELF-TAPING SCREWS AND RIVETS

We have the ability to develop machine tools and accessories according to the drawings of finished products and the technical requirements of the customer. To do this, it is necessary to clarify the size of the fittings for the equipment, the model of the cold heading machines used and the diameter of the wire used for the upsetting of fasteners, hardware and parts).

order-made cold heading machine tools order-made cold heading machine tools



FULL SELF-TAPPING SCREW PRODUCTION CYCLE (FOR REFERENCE)

The wire goes through several stages of processing before becoming a self-tapping screw. Formation of the workpiece by means of a cold heading machine. At this stage, the product acquires the required length, tip and head. The threaded rod thread is then cut on the thread rolling machine.

Furthermore, in production the additional stage is possible - if the self-tapper has a drill it is necessary to use additional equipment to form the drill.

To improve product quality, surface hardening processes can be added to increase the strength of the product and anticorrosion treatment. The product is then packed and packaged in plastic bags and boxes.


WireHeadingTail-ClampingThread-RollingHeat TreatmentSurface TreatmentPackaging PlantPackagingShipping


Self-tapping Screw Cold Heading Technology

The production of blanks for self-tapping screw is carried out on two-impact single-position automatic cold heading machines (upsetting machines). The equipment has two punches (roughing and finishing) and one cold heading die.

The prepared wire is installed on the unwinding device and fed through the roller system of the two-plane straightening device into the receiving opening of the shear die. Next, you need to set the adjustable stop to the desired length of the workpiece. After that, the machine is switched on for a working stroke.

The cut-off knife performs a cut and with the presser feet transfers the workpiece to the upsetting position where the workpiece is picked up by the end of the rough punch, pushed into the upsetting die to the front end of the ejector. After that, the pre-stamping of the self-tapping head takes place. The operation forms about 70% of the self-tapping head shape.

At the second stroke of the actuator, the tool head turns about, as a result of which the second punch is set to the upsetting position, which finally forms the screw head (remaining 30% of shape).

During the return stroke of the slider of the cold heading machine, its ejector extracts the stamped blank from the cavity of the cold heading die, after which the cycle is repeated. The stamped workpiece is fed through the tray into the receiving container.





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