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BIRSON  FRICTION SCREW PRESSES (DOWN STROKE) SPL

Thesescrew presses are designed to serve Forging, Coining and sizing operation in steel and nonferrous metals subject to tools offering adequate impact surfaces. These Presses are ideal high precision forging machines. However, these machines differ in certain respects to suit the additional requirements which have to be satisfied for die forging i.e. greater blow energy, longer ram guides by securing the nut in the ram optimized, reliable and maintenance free connection has been achieved due to the similarity in function of a screw press fully adopted to the requirement of die forging, and a modern die forging hammer this machine offer the logical solution in those cases where a die forging hammer must not or can not be used for a number of different reasons exactly in the same way as on a die forging hammer or a hydraulic press. The bottom reversing point of the ram is variable and the machine can not therefore, jam subject to adequately dimensioned impact surfaces on the die holder. It is therefore, possible to produce Extremely uniform forgings. An ejector is provided at lower part of table.

 
 
BIRSON FRICTION SCREW PRESS (DOWN STROKE ) FSP
Type Nominal Capacity Dia of Screw Stroke of Ram Number of strokes Size of Table Max.Distance
B/W Table & Ram
Min.Distance
B/W Table & Ram
Dia of Hole
in the table
Dia of Hole in the Ram Pulley Size Power Required
  Tons mm/inch mm/inch Per mintue mm/inch mm/inch mm/inch mm/inch mm/inch mm/inch H.P./R.P.M
FSP 30 75/3 150/6 40 325x350/13x14 300/12 175/7 75/3 38/1½ 100/4B 3/1440
FSP 50 115/4¼ 175/7 30 325x400/13x16½ 325/13 175/7 80/3¼ 38/1½ 100/4B 5/1440
FSP 100 132/5¼ 250/10 25 430x470/17x18½ 450/18 200/8 100/4 50/2 100/4B 10/1440
FSP 150 155/6¼ 275/11 20 450x525/18x21 475/19 225/9 118/4½ 64/2½ 125/5C 15/1440
FSP 200 165/6½ 300/12 18 500x540/20x21½ 500/20 250/10 125/5 64/2½ 125/5C 20/960
FSP 300 200/8 350/14 16 600x600/24x24 580/23 280/11 140/5½ 64/2½ 175/7C 25/960
FSP 400 225/9½ 375/15 14 700x700/28x28 600/24 300/12 150/6 89/3½ 175/7C 30/960
FSP 500 255/10 405/16 12 760x760/30x30 625/25 325/13 150/6 118/4½ 175/7C 40/960
FSP 630 280/11 432/17 10 810x810/32x32 660/26 355/14 150/6 118/4½ 175/7C 50/960
FSP 800 292/11½ 457/18 8 865x865/34x34 710/28 380/15 165/6½ 125/5 175/7C 60/960
FSP 1000 307/12½ 507/20 6 915x915/36x36 760/30 405/16 190/7½ 125/5 175/7C 70/960
 
 
Features and Advantages
• High useful working energy.
• Mechanical energy store.
• Overload protection by slipping wheel.
• Thermally stable ram guide ways with wear-proof guide gibs.
• High forging precision.
• No need to readjust ram with machine warming up.
• No jamming under load possible.
• Long Die life because of short Pressure-Contact Times.
• Sequence of different strokes on one work piece possible.
• Totally closed die forging capability.
 
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