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Specifications
Standard Ratings:
25, 35, 50 and 75 KVA @ 50% duty cycle.
Type:
Air operated stationary press type Spot welders with pneumatic
cylinder mounted directly.
Construction:
Robust construction, streamlined appearance with maximum resistance
to deflection.
Transformer enclosed in the main frame and pneumatic accessories
mounted on the side of the machine and upper and lower arms mounted
directly on to the body. Operating control station mounted on the
machine clearly visible and within easy reach of the operator.
Standard Throat Depths:
300, 450, 600, 750 and 900 mm (Machine with other throats also available
on request).
Welding Transformer:
Transformer conforms to IS: 4804 Part-I and RWMA Standards, water
cooled, class 'F' insulation with thermoswitch protection for overloading.
Current Control:
Welding current adjustable from 50 to 100% by means of a tap change
links.
Cooling System:
Transformer, Electrode holders, welding electrodes are water cooled.
Electrodes / Dies Toolings:
One Pair of Morse Taper 2 straight Electrodes supplied as standard
with the machine. Machine can be provided with custom-designed spot
welding electrodes or welding dies to suit various sizes and shapes
of work pieces, and suitable jigs and fixtures for holding, guiding
and indexing of the work-piece as required at extra cost.
Electrode Control System:
Upper electrode actuated by a heavy duty 2-way cushioned pneumatic
cylinder controlled by an electrically operated 4-way solenoid valve.
Compressed air at 1.5 Kg/cm.sq. - 5.6 kg/cm.sq. (20 to 80 psi) acting
on the pneumatic cylinder provides electrode force.
Machine provided with air filter, air lubricator, air pressure
regulating valve, air pressure gauge.
High Lift Facility (Optional at Extra Cost):
"High Lift" (retractable upper electrode) facility shall be provided
by means of special cylinder. A hard/foot operated air valve causes
the upper electrode to lift to the top most position for easy introduction
of the job into the throat of the machine.
Dual Pressure System (Optional at Extra
Cost) :
Dual pressure system shall be provided by means of two sets' of
regulating and controlling devices and the necessary air circuits.
Working in conjunction with special control units, this facility
would enable application of a higher force on the job being welded
at any point during the weld cycle.
Controls:
Appropriate Control will be incorporated with the machine as per
requirement.
Service Requirements
Power Supply:
415 V, single phase, 50 cycles, Machine suitable for connection
to 2 lines of 3 phase supply. Main supply cables 2-core type. Disconnect
switch fuses of size recommended to be provided by the customer.
Compressed Air:
Customer to provide air supply at recommended flow volume at a minimum
pressure of 5.6 kg/cm.sq. (80 p.s.i.).
Cooling Water:
Cooling water at minimum 2.6 kg/cm.sq. pressure and temperature
below 30 degree centigrade at flow rate of 25 ltrs./minute to be
provided by the customer.
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