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BIRSON FORGING SCREW PRESSES (UP STROKE)

These screw presses are designed to serve forging long bolts head,axle shaft,nuts any kinds of auto parts etc.These presses are ideal high precision forging machines.In this special type model their is straight fly wheels and no counter weight which inturn reduce the load from ram as well as from the Screw also hence less breakage of ram.In this every stroke of press is adjustable and ram is balanced by air cylinder full compensating the ram weight this easy upstroking & improve the efficiency & accuracy of press.It also consumed less energy.Vincent Presses with friction drive on which forging blow takes place in an upward direction i.e.from bottom towards top.The screw nut is positioned in top cross head of a frame type ram.The screw presses therefore offer higher screw efficiency with identical performance.The ram being moved upward in axial direction by rotation of longitudinally fixed screw.Ejector is provided at lower part of the ram.

 
 
BIRSON FORGING SCREW PRESS VINCENT TYPE (UP STROKE)
Type Nominal Capacity Dia of Screw Stroke Slide Table Pieces/Hour Max.Dia of Bolt Capable
Forging
Max.length of bolt Capable Forging Foundaton Pulley size Power Required/H.P.
(Approx.) Motor R.P.M.
  Tons mm/inch mm/inch mm/inch   mm/inch mm/inch mm/inch mm/inch H.P./R.P.M
VFP 50 85/3¼ 300/12 200/8 800-1200 12/½ 250/10 840-585 100/4B 3/1440
VFP 100 110/4¼ 400/16 225/9 600-1000 20/¾ 300/12 930x610 100/4B 7.5/1440
VFP 125 115/4½ 450/18 225/9 500-900 22/⅞ 400/16 940x710 100/4B 10/1440
VFP 150 130/5⅛ 500/20 250/10 400-700 32/1¼ 450/18 1080x750 125/5C 15/1440
VFP 200 135/5⅜ 550/22 275/11 300-600 38/1½ 500/20 1115x790 125/5C 20/1440
VFP 300 155/6⅛ 600/24 275/11 200-500 50/2 600/24 1200x860 200/8C 25/960
VFP 400 175/7 650/26 300/12 150-300 63/2½ 650/26 1320x1000 200/8C 30/960
VFP 500 200/8 700/28 335/13 80-250 75/3 700/28 1470x1050 200/8C 40/960
VFP 630 225/9 760/30 355/14 70-225 90/3½ 760/30 1525x1100 200/8C 50/960
VFP 800 250/10 810/32 380/15 60-200 100/4 810/32 1600x1150 200/8C 60/960
VFP 1000 275/11 865/34 405/16 50-150 115/4½ 860/34 1750x1250 200/8C 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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