British Federal – Stronghold Spot-Welder – 75 Stronghold / 100 Stronghold / 150 Stronghold
Price on Request
NOT THE RIGHT PART? YOU CAN SEE THE FULL RANGE IN OUR CATALOGUE
Stronghold welding machines set the standard for multi-purpose resistance welding equipment, having adjustable reach for spot welding. They are easily adapted for projection welding and are available as a seam welding version.
Standard Features for spot welding include:-
> ADAPTABILITY - Infinitely adjustable reach from 500-800mm.
> HIGH QUALITY WELDING - Choice of weld control.
> PRODUCTIVITY - Welding speeds up to 250 spots per minute.
> RELIABILITY - 50% duty cycle encapsulated transformer.
> VERSATILITY - Simple adaption to projection welding.
Stronghold can be fitted with a range of AC Weld Transformers (100 to 150kVA) or MFDC Transformers (100 to 250kVA) as well as a choice of Weld Controls and other options.
MFDC offers the following added benefits -
> Improved weld quality.
> Reduced Power consumption costs.
> Lower peak currents providing increased electrode life.
> 3-phase even load distribution.
> Ideal for welding coated materials and Aluminium.
> Weld times reduced through increased rate of heat input to work piece.
> Reduced weld splash owing to lower peak currents.
> Can be retrofitted to existing machines.
> Retract/high lift and or 160mm air cylinder.
> 100KVA , 150KVA single phase AC or 100KVA 3-phase DC Medium Frequency Transformer.
> Load Cell for Force verification
> Nut Verification System
> Water Flow Sensors
> Electro-pneumatic regulator for automatic adjustment of weld force with weld program selection. (Compatible weld control required).
> Manual or Inline versions available
> Linear Transducer for Head Travel position
> Closed circuit water cooled system.
> Integration of automatic nut and bolt feed machines.
|Technical Specifications||75 Stronghold||100 Stronghold||150 Stronghold|
|Continous power @ 100% duty cycle||Sp||kVa||53||71||106|
|Max short circuit power||Scc||kVa||290||360||460|
|Max welding power||Smax||kVa||230||290||360|
|Nominal power @ 50% duty cycle||S50||kVa||75||100||150|
|Nominal supply voltage||U1n||V||380 / 440||380 / 440||380 / 440|
|Continuous primary current at 100% DC||I1p||A||130||170||250|
|HRC fuse size to BS88||A||160||200||315|
|Feed cable c.s.a up to 30m. long||mm²||50||70||95|
|Max short circuit primary current||I1cc||A||690||860||1200|
|Max short circuit secondary current||I2cc||A||32,000||35,000||42,000|
|Max welding current||I2max||A||25,000||28,000||33,000|
|Duty cycle for max welding||Xmax||%||5.4||6.1||7.1|
|Continuous secondary current at 100% DC||I2p||A||6,000||7,200||8,900|
|Number of taps||3||3||3|
|Secondary open circuit volts||U20||V||8.8 / 8 / 7||9.9 / 8.8 / 8||11.9 / 10.4 / 8.6|
|Weld force min/max with a 1.5/5.5 bar supply||kN||1.8 / 6.7||1.8 / 6.7||3.0 / 11.0|
|Weld force min/max with an 20/80 psi supply||1bf||400 / 1,500||400 / 1,500||650 / 2,500|
|Weld cylinder stroke max||mm||76||76||76|
|Air pressure normal||bar||5.5||5.5||5.5|
|Air pressure max operating||bar||7||7||7|
|Air connection/hose size||BSP/in||1/2″ / 1/2″||1/2″ / 1/2″||1/2″ / 1/2″|
|Cooling water min operating pressure||bar||3||3||3|
|Cooling water consumption||Lit./min||20||20||20|
|Cooling water max inlet temp||°C/°F||30 / 86||30 / 86||30 / 86|
|Cooling water connection/hose size||BSP/in||1/2″ / 3/4″||1/2″ / 3/4″||1/2″ / 3/4″|
|Shipping specifications||Machine size||mm||590W x 1350D x 1685H||590W x 1350D x 1685H||590W x 1350D x 1685H|
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.