COLD FORMING EQUIPMENT FOR SELF TAPPING SCREWS AND RIVETS

BOLT FORMER NUT FORMER PARTS FORMER OPEN DIE REHEADER COMPLEX FASTENERS FORMER SELF TAPPERS AND SCREWS FORMER MICRO SCREWS FORMER HEADING OF LONG PRODUCTS STUD FORMER RIVET HEADING WASHERS PRESS COLD-HEADING OF HOLLOW PRODUCTS

SELF TAPPING SCREWS PRODUCTION

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

RA-2C

RA-5.5C

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

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-5.5S

RA-10S

RA-15S

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

RA-5.5

RA-10

RA-15

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).

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.

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.