bids are invited for transformer based welding machine for shovel and drill - transformer based welding machine for mma/smaw welding for shovel and drill section capacity: 1. to weld and cut with electrodes up to 5 mm. 2. current setting ranges from 90 to 400 amps.machine:1. working supply should be 415 volts, 50 hz, 2 lines of three phase2. output characteristic: constant current3. protection class: ip234. insulation to be of class `f` or above5. forced air cooling mechanism6. visible indicator of welding current to be provided.7. stepless welding current change8. weight should be 130 kgs or less9. dimension should be less than 720x460x750 (lxwxh).10. lifting eyes and wheels for transportation to be provided.accessories:welding machine should be supplied with suitable earthing cable, welding lead (15 mtrs), welding hand screen and electrode holderpreferred makes: ador/esab/diffusion/l&t(ewac)/crux weld (other than preferred makes are not acceptable) total quantity : 1