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NATIONAL MODEL 7-4 HIGH SPEED 4-STATION HOT FORMER
BUILT BY........NATIONAL MACHINERY CO. TIFFIN, OHIO
MODEL...........7-4 HOT FORMER
YEAR...............1989
SPECIFICATIONS:METRICSTANDARD
NUMBER OF DIES AND PUNCHES........44
MAX. CUTOFF DIAMETER...................... 76.0 MM3.000"
MAX. CUTOFF LENGTH...........................152.0 MM6.000"
MAX. DIE KICKOUT.............................152.0 MM6.000"
MAX. PUNCH KICKOUT........................ 60.0 MM2.375"
PART OUTER DIAMETER.........................145.0 MM5.700"
1ST DIE DIAMETER...............................228.0 MM8.970"
2ND DIE DIAMETER.............................127.0 MM11.73"
3RD DIE DIAMETER.............................298.0 MM11.73"
4TH DIE DIAMETER................................298.0MM11.73"
1ST PUNCH DIAMETER.........................222.0 MM8.740"
2ND PUNCH DIAMETER.......................222.0 MM8.740"
3RD PUNCH DIAMETER........................222.0 MM8.740"
4TH PUNCH DIAMETER........................222.0 MM8.740"
MAIN MOTOR......................................373.0 KW500.0 HP
NET WEIGHT....................................225,000.0 KGS
496,000LBS
FLOOR SPACE:
WIDTH..................................6,736.0 MM 22'1"
LENGTH.................................9,236.0 MM30'3"
HEIGHT.................................3,692.0 MM
12'11"
BARFEED LINE ABOVE FLOOR........2,133.6 MM7'00"
FEATURES:
FULLY ADJUSTABLE FOUR ROLL FEED BOX
PNEUMATICALLY CONTROLLED FEED ROLL GRIPPING PRESSURE
INFINITELY VARIABLE ADJUSTMENT OF STOCK GAGE WITH LENGTH READ OUT
WATER COOLED QUILL, DIES PUNCHES, FEED ROLLS AND FEED ROLL SHAFTS
INDIVIDUALLY ADJUSTABLE DIE KICKOUTS
OVERLOAD RELIEF ON EACH DIE KICKOUT LEVER
INDIVIDUAL DIE CAPS
INDIVIDUALLY ADJUSTABLE PUNCH HOLDERS
INDIVIDUAL ADJUSTMENT OF PUNCH SHUT HEIGHT
OVERLOAD DETECTION ON CUTOFF, TRANSFER AND PUNCH SHUT HEIGHT
PUSH-BUTTON OPENING OF UPPER TRANSFER UNITS ALLOWS EASY REMOVAL OF PARTS (FOR
JOB SETUP AND INSPECTION)
FULLY TIMED TRANSFER DRIVE USING STRAIGHT-LINE VERTICAL OPENING AND CLOSING
TRANSFER SETUP FIXTURE
FULL FLOATING WRIST PIN ELIMINATES SINGLE POINT LOADING
AIR OPERATED CLUTCH
BAND BRAKE
RE-CIRCULATING OIL LUBRICATION SYSTEM
PARTS DISCHARGE OUT THE SIDE AND ABOVE FLOOR LINE
INDUCTION HEATER
BAR RACK
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