British Federal – Stronghold Projection Welder – 75 Stronghold / 100 Stronghold / 150 Stronghold
Price on Request
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Stronghold projection welding machines are designed for light to medium duty applications. Built to British Federal’s high-quality standards, they are available as dedicated projection welders, complete with custom built tooling or as conversions from the Stronghold spot welder. Standard Features for projection welding include -
> EASY TOOLING ALIGNMENT - Spherical seating for the lower platen.
> TOOLING VERSATILITY - Fully adjustable platen gap.
> RELIABILITY - 50% duty cycle encapsulated transformer.
> HIGH QUALITY WELDING - Choice of weld control and AC or MFDC versions.
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).
> Bespoke designed tooling
> 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||70||106|
|Max short circuit power||Scc||KVA||300||330||580|
|Max welding power||Smax||KVA||240||350||460|
|Nominal power @ 50% Duty Cycle||S50||KVA||75||100||150|
|Nominal supply voltage||U1n||V||415||415||415|
|Continous primary current at 100% duty cycle||I1p||A||125||170||250|
|HRC fuse size to BS88||A||160||200||315|
|Feed cable c.s.a up to 30m long||mm²||50||70||150|
|Max short circuit primary current||I1cc||A||730||800||1,400|
|Max short circuit secondary current||I2cc||A||34,000||37,000||46,000|
|Max welding current||I2 max||A||27,000||29,000||36,000|
|Duty cycle for max welding||Xmax||%||4.8||7.1||5.2|
|Continous secondary current at 100% duty cycle||I2p||A||6,000||7,299||8,900|
|Number of taps||3||3||3|
|Secondary open circuit volts||U20||V||8.8||9.9||11.9|
|Weld cylinder diameter||mm||125||125||160|
|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 a 20/80 psi supply||Ibf||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″/3/8″||1/2″/3/4″||1/2″/3/8″|
|Cooling water min operating pressure||bar||3||3||3|
|Cooling water consumption||lit/min||20||20||20|
|Cooling water max inlet temp||°C||30||30||30|
|Cooling water connection/hose size||BSP/in||1/2″/3/4″||1/2″/3/4″||1/2″/3/4″|
|Shipping specification||machine weight||kg||570||570||630|
|machine size||mm||590W x 1,285D x 1,685H||590W x 1,285D x 1,685H||590W x 1,285D x 1,685H|
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.