Spot Welders

We offer precision gamut of spot welder (PEDAL) that is fabricated using finest quality raw material. Our electronic control system comprises of STERCO SOLID STATE CMOS INTEGRATED WELD TIMER having timing range 5-99-199 cycles, adjustable in step of one cycle by means of Thumb wheel switch along with heavy duty electromagnetic contactor for switching purpose. Tap changing switch in 8 steps from 50 to 100% for adjustment of welding current. A mechanism coupled switch provided in the machine which initiates the weld only after preset pressure is built up.

» The Electrode System
The rocker arm mechanism coupled with foot pedal is specifically used to attain the electrode force. The force can be varied by adjusting the nut provided on the back-rod below the compression spring of rocker arm mechanism.

» Cooling System
Arms, electrode holders, electrode etc are water cooled. Water cooled transformers can be availed at an extra cost.

» For Fine Control
Thyristor can be used to control heat current from 5 to 95% of the available current. Weld time is also adjustable from 1 to 99 cycles in step of one cycle each. A pair of thyristor can be used for switching purpose instead of electro magnetic contactor at an extra cost.

» Rocker Arm Type Spot Welders
The international standard machine is viable for mass production as it required less operational efforts. These machines are designed and developed to meet the demand of various metal fabrication shops.

» Advantages
Besides spot welding the machine can also be used for Electrobrazing, Cross wire welding and resistance heating.

» Salient Design Features
The machine is highly demanded for its rugged body and easy maintenance. A heavy machined bracket is provided on top of the frame for Rockering the upper arm holder. "T" stotted face plate allows both vertical and horizontal adjustment of lower arm. Special electrode holder clamping system provides an increased current carrying section. These are available for maintenance of electrical, electronic and mechanical components.

» Welding Transformer
With special design technique adopted to offer, maximum efficiency of the transformer, confirming to latest IS/4804 part I. It is Air/Water cooled, sandwitch construction of coils having core of high grade electrical steel. Class 'F' vacuum impregnated transformer helps to withstand higher temperature.

Rocket Arm Pneumatically Operated Spot Welder are ideal for mass production, where less operational efforts are required. Specially designed for sheet metal fabrication shops, this model can be used for electro brazing, cross wire welding, projection welding & resistance heating.

» Construction
The rugged construction of the machine with least moving parts ensures hassle free use along with minimum maintenance. A heavy Gun Metal bracket is provided on top of the frame for Rockering the upper arm holder. "T" slotted face plate allows both vertical and horizontal adjustment of lower This special electrode holder clamping system works to increase the current in the carrying section.

» Electronic & Electrical Control System
"STERCO" make SOLID STATE C-MOS INTEGRATED WELD TIMER with heavy duty electromagnetic contractor for switching purpose. Timer consists of squeeze (Range 0-250 cycles, step less control), Weld Timer (Range will be 5-99-199 cycles adjustable in step of one cycle)and to adjust the welding. Current from 50 to 100%, one tap changing switch of 8 steps had been provided on the machine.

» Cooling System
Arms, electrode holders, electrodes etc. are water cooled. Water cooled transformers can be provided at an extra cost.

» Pneumatic System
The pneumatic system comprises of a pneumatic double acting cylinder, solenoid valve of 4 ways 5 port, filter, lubricator, regulator gauge and foot operated initiating switch for solenoid coil.

» Electrode System
The electrode force is attained through the rocker arm mechanism coupled with the pneumatic cylinder. This system provides easy adjustment of the electrode force with the help of Air regulator.

» For Fine Control
A pair of thyristor can be provided for switching purpose in place of electromagnetic contractor at an extra cost. By using thyristor, Heat Current can be controlled from 5 to 95% of the current available. Weld time is also adjustable from 1 to 99 cycles in step of one cycle each.

» Additional Features
Additional ARMS AND ELECTRODE HOLDERS are provided at extra cost.