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British Federal – Rocker Arm Spot Welder – Type 117 / Type 125

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Product Description

Two robust heavy-duty spot welders featuring:
• A choice of transformer and arm reach.
• A ‘T’ slotted face plate giving both vertical and horizontal adjustment of the lower arm.
• Optional reversible upper and lower electrode arms, one drilled to accept vertical electrodes with the other end a 22½ inclined electrode.
• Optional water cooled lower arms and adapters for cross wire and ‘T’ wire welding.
• Adjustable weld time ranges 1 cycle to 100 cycles.
• Current range infinitely adjustable from 30% to 100% phase shift control.
• Weld/No Weld switch, Weld indicators as standard for safety.

Total reliability is provided by British Federal Monopak type WP1 electronic welding control using ‘state of the art’ technology providing all electronic fully synchronous welding control and solid-state thyristor switching.

Technical specifications Type 117 Type 125
Transformer- Air cooled Continuous rateing 100% duty cycle KVA 12 18
Maximum power KVA 45 70
Number of taps 1 1
Secondary Volts V 4.0 5.0
Short circuit current at 450mm reach Amps 11,000 14,000
Maximum primary current A 110 170
Rating at 50% duty cycle KVA 17 25
Electronic controls Timer Monopak Wp1
Synchronous timer 1 – 100 cyles in 2 ranges
Thyristor contactor 30% to 100% phase shift control
Arm Details Reach mm 300,450,600,750 or 900 300,450,600,750 or 900
Diameter top and bottom ins (mm) 2″ (51) 2″ (51)
Electrode holders ins (mm) 1 1/4″ (32) 1 1/4″ (32)
Electrodes (mallory 328) ins (mm) 3/4″ B.S B07 taper (19) 3/4″ B.S B07 taper (19)
Water cooled arms availabe as an optional extra
Pressure adjustable using a spring up to 1.3KN (300 Ibs)
Shipping specifications Nett weight kg 225
Gross weight kg 325
Case size mm 1190 x 480 x 1750
Services required Electronic (via customers switch fuse) 2 phase 380/440 V 50Hz 2 phase 380/440 V 50Hz
Water 5/10 litres per minute 5/10 litres per minute
Suggested PVC multicore cable and fuse size (BS 88) 10mm 1/32A HRC 16mm 1/50A HRC
Welding Capacity Guide
Material Thickness Mild Steel Galvanised Mild Steel Wire
mm swg press Current time cycles press current time diameter press current time
(Ibs) amps Ibs amps cycles mm Ibs amps cycles
0.5 26 140 5,000 5 300 3,000 6 2.5 125 1800 9
1 20 280 7,000 8 550 11,000 12 4.5 360 3,300 14
1.6 16 550 10,000 16 6.0 600 4,500 20

All of our machines are priced and sold as ‘Machine Only’ if you wish to have us deliver, Install and/or commission your new purchase, please request prices from our Sales Team. We offer a full range of services to suit all sizes of business and budgets.

+44 (0)1827 254 829

sales@prospot.co.uk