1" X 50" PRATT & WHITNEY MODEL 1BX50 TWIN SPINDLE GUN DRILL

#Feeds, per revolution of spindle, any four at customer's option, .0002� to .0002� to .0002� to .0002� to
between limits shown .0018" 0018" .0036" .0036"

Length 151" 193' 196" 244"
Width 33" 33� 36" 36'
Height 485,.{6" 48!{,� 49" 49�
WEIGHTS:
Machine with regular equipment, net approximate lbs. 6200 6600 8020 8640
Cr.a ting material, domestic, approximate lbs. 600 700 1000 llOO
Box;...g matc -ia.1, fc;.oigu, app,-oximate l!:.s 840 10 () 1210 1400
Box, cubic fei,t 280 330 339 435
MOTORS:
2-1 H.P. C�R Machine) or 2 H.P. (1BMachine) constant speed srindle drive motors 2-2 H.P., 750-900 R.P.M. constant speed motors for pumps (.�B Machine)
2-3 H.P., 1000-1200 R. P. M. constant speed motors for pumps (lB Machine)
1-!--s H.P. motor for filter
A. C. motors are available for either two or three-phase, 50 or 60 cycle, 220, 440, 550 volts. Other current characteristics are special
Two-speed motors for 2-phase current, and two or four-speed motors for 3-phase current, giving additional spindle speeds, can ordinarily be
furnished at special prices
REGULAR EQUIPMENT:
The machine arranged for V-belt motor drive, with built-in automatic starters and push buttons for all motors, including one �H.P. filter motor, two.spindle drive and two pump motors; with coolant pumps and piping, torque limiting device, 3-jaw universal chucks and guards, and the following equipment for any one job: 2 work bushings, 2 drill bushings, 2 oil guard bushings, 2 drill rest bushings, and 2 drills. Two steady rests on all length machines and over
NOTES:
*2-step pulleys permit two-spindle speed. Extra pulleys giving additional speeds may be purchased as additional equipment
**The four feeds are obtained through change gears. Extra change gears may be purchased as additional equipment
ADDITIONAL EQUIPMENT:
Pulleys for additional spindle speeds, change gears for additional feeds, steady rest, special work holding chucks, fixtures, drills