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BIRSON FRICTION SCREW PRESS (DOWN STROKE)

These Friction Screw presses are preferred for hot forming (Forgings) and cold coining.Stamping, embossing, Sizing nonferrous metals. The press body is steel welded construction one piece box type design. After the welding the press body is glowed free from tension. The Screw is made of high quality alloy Steel and is heat treated to have great hardness at the same time great elasticity. Fly wheel  screw presses machines of this type are characterized by the fact that fly wheel connected to accelerated at the start of working stroke, then braked to a standstill by the actual forming process. Thus the entire kinetic energy stored in the fly wheel released screw press have not kinetically fixed bottom dead center point in common with drop forging itself or by stops in the tool in turn, this results in advantage  tool height  adjustment is eliminated, forging accuracy is greater. In addition Digital indicator meter is provided to measure speed of ram, numbers of stroke count & impact force in tons of press is transfer to P.C. Slipping clutch wheel overload protection pneumatic control can be provided.

 
 
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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