Bruderer BSTA 25 Ref. 35926

Swiss-built press for high-volume production of precision stampings such as connectors, contacts and fine blanked parts. The 4-column monoblock frame runs on a hydrostatic variable-speed drive with a pneumatic clutch and brake, while a circulating oil lubrication system with oil pump and oil cooler serves the drive train. This unit dates from 1980 and has been refurbished. The full specification is listed in the table on this page. The key figures are 250 kN (25 tons) nominal force, a stroke rate of 100 - 1,500 SPM, a bolster area of 530 x 530 mm and an adjustable stroke of 13 / 16 / 19 / 25 / 32 / 38 mm, with 51 mm of ram adjustment and a shut height range of 230 - 281 mm. Strip is handled by a Bruderer BBV 202/120 synchronized mechanical roll feeder taking up to 200 mm width at a 120 mm pitch, with a 180 degree feed angle. Front and rear safety guards, anti-vibration rubber feet on four supports and a separate electrical control cabinet form part of the machine. Weight is approx. 4,800 kg and overall dimensions are 2,055 x 1,355 x 2,620 mm. The unit described here is a Bruderer BSTA 25, reference number 35926.