60” PFAUTER “P1251” UNIVERSAL GEAR HOBBER

Description

MODEL NO. P 1251 PFAUTER UNIVERSAL GEAR HOBBING MACHINE

SERIAL NO. 25277 (NEW IN 1978)

SUITABLE FOR HOBBING STRAIGHT SPUR AND HELICAL GEARS,
PINIONS, SPLINES, SPOCKETS, WORM GEARS, AND OTHER
WORK-PIECES OF SIMILAR PROFILE UP TO 60" (1500MM)
DIAMETER, AND 1.5 DP (MODULE 16) CAPABILITY IN STEEL

MACHINE HAS BEEN FOUND TO BE IN ABSOLUTELY
"SUPERLATIVE" CONDITION THROUGHOUT, (COMPARABLE TO
NEW), HAVING BEEN ACQUIRED OUT OF A U.S, GOVERNMENT
PRIME CONTRACTOR'S MARINE PROPULSION AND AEROSPACE
GEAR MANUFACTURING FACILITY. MACHINE IS WITH
"SPECIAL ACCURACY" WORM AND WORM-WHEEL TABLE GROUP.

EQUIPMENT / FEATURES:
UNIVERSAL POWER SWIVELING HOB-HEAD W/TANGENTIAL FEED,
W/HOB SLIDE AND HOB COLUMN AUTOMATICALLY CLAMPED
WHILE IN WORKING POSITION
POWERFULL MOTOR DRIVEN WORK TABLE, WORM GEAR OF BRONZE,
W/DUPLEX WORM DRIVE & BRAKE SYSTEM FOR ELIMINATING
backlash
WORK TABLE AND MAIN BASE OF SPECIAL "MODULAR"
CONSTRUCTION W/OUTBOARD SUPPORT COLUMN AND
HYDRAULICALLY ACTUATED "CLAM-SHELL" TYPE TAILSTOCK
WORM AND WORM-GEAR GROUP FOR WORK-TABLE IN "SPECIAL
ACCURACY" EXECUTION (INDEX CONSTANT = 40/N)
POWER FORCED LUBRICATION TO ALL WORKING ELEMENTS
WITH ALL GUIDE-WAYS AND FRAME ASSEMBLIES DESIGNED
TO PROVIDE OPTIMUM THERMAL STABILITY UNDER THE
HEAVIEST OF CUTTING CONDITIONS
FULL AUTOMATIC CUTTING CYCLES, WITH CAPABILITY OF
AXIAL, RADIAL, TANGENTIAL, DIAGONAL, CLIMB, AND
CONVENTIONAL HOBBING
"AUTOMATIC-TWO-CUT" CYCLE W/SPEED AND FEED CHANGE
BETWEEN BOTH ROUGHING AND FINISHING CUTS
PRIME NUMBER HOBBING EQUIPMENT FOR CUTTING PRIME
NUMBERS OVER 199 TEETH
DIFFERENTIAL MECHANISM FOR HELICAL GEAR CUTTING
AUTOMATIC INFEED (INFINITELY VARIABLE)
AUTOMATIC DWELL EQUIPMENT
INFINITELY VARIABLE AXIAL FEEDS AND INFINITELY
VARIABLE HOB SPEEDS
STEPLESSLY VARIABLE HOB SHIFT W/POWER AUTOMATIC
RETRACTION OF HOB ARBOR COUNTER-BEARING
AUTOMATIC HOB CLAMPING DEVICE
AUTOMATIC TABLE RELIEF SYSTEM
FULL COMPLEMENT OF ELECTRICS (MOTORS/CONTROLS)
(PRESENTLY ARRANGED FOR 480VOLT, 60 HZ OPERATION)
OPERATOR'S PENDANT CONTROL STATION/PANEL
COMPLETE SELF CONTAINED COOLANT SYSTEM W/HIGH VOLUME
PUMP & NOZZLE
MAGNETIC CHIP CONVEYOR
SPLASH GUARD WALL, DOOR, COVERS
OPERATOR'S CATWALK WITH STAIRS
CHANGE GEARS FOR INDEX AND DIFFERENTIAL
ASSORTED HOB-ARBORS
FIXATORS/LEVELING SHOES
MISC. WRENCHES, SPANNERS, MISC. OPERATOR' TOOLS

PRICE: F.O.B. TRUCK,
present plant location $275,000.00
W/center support: 49.25" (1251MM)
Wo/center support: 60.00" (1524MM)
Maximum axial travel: 39.37" (1000MM)
Maximum dp / module in steel: 1.6 DP (15.87 MOD)
Min # of teeth (single-start index drive): 20 TEETH
Workpiece & hob, minimum: 2.36" (60MM)
Workpiece & hob, maximum: 31.5" (800MM)
Maximum hob diameter: 10" (254MM)
Maximum hob length: 11" (280MM)
Maximum hob travel: 9.85" (250MM)
Diameter of hob arbors: 1",1.25",1.5",2"
Taper for hob arbors: MORSE # 5
Diameter of work table: 47.24", (1200MM)
Table weight capacity: 11,000 LBS (5,000 KG)
Diameter of work table bore: 12" (305MM)
Work arbor diameter: 2.5" (63.5MM)
- hob speeds: 30 - 180 RPM
- axial feed: (0.5 - 6.000MM/PR)
- radial feed: (0.170 - 2.000MM/PR)
- tangential feed: (0.200 - 2.500MM/PR)
Total connected electrical load (approx.): 32 KVA
Machine overall length: 291.80",(7412MM)
Machine overall width: 169.80",(4313MM)
Macine overall height: 137.75",(3500MM)
Machine overall weight (approx.): 50,700LBS(23,000 KG)