MEGABORE - Big spindle bore lathes
HEAVY DUTY LATHES                                          PA-35.40.45.50 series

The MEGA-BORE Series of Heavy Duty Lathe were developed and designed to provide optimum performance with high cutting power while providing versatility for use in a wide range of industries : general purpose machine shops, mining industry, power industry, oil industry, paper plants, and shipyards, etc.
The MEGA-BORE Series feature the most modern designs, providing high efficiency and easy operation.

All four models, PA35, PA40, PA45, PA50 have common features such as:

  • Single piece bed casting resting entirely on the floor for maximum rigidity
  • Top slide is hardened and precision ground
  • Headstock clutch and brake. (OPTION)
  • Massive heavy duty headstock
  • Natural and removable gaps
  • 6-Ways power feed/rapid feed

Pictured 12.5" Bore x 118"

MEGA-BORE MACHINE SPECIFICATIONS series No. indicates approx swing in inches

HEAVY DUTY LATHE PA-SERIES.............................unit : mm (inch)
ITEM / MODEL 35 SERIES 40 SERIES 45 SERIES 50 SERIES
mm inch mm inch mm inch mm inch
Capacities
Swing over bed 880 35 1010 39 3/4 113 54 3/4 1275 58 1/8
Swing over cross slide 610 24 740 29 1/8 870 34 1/4 1010 39 3/4
Swing over gap 1340 52 3/4 1470 57 3/4 1600 63 1740 68 1/2
Length of gap from head stock 600 mm (23 3/4")
Center distance 1500-20000 mm (60-800")
Weight capacity between center 8000 kgs/17600 lbs (6" Bore)
Headstock
Spindle Bore
Spindle speed 18 Step (Std.)
Variable speed, machines over 12.5"bore		 153 mm (6") 5-630 rpm
230 mm (9") 4-450 rpm
305 mm (12") 3-300 rpm
508 mm (20") 1.5-180 rpm
Spindle nose
 		 A2-11
A2-15
A2-20
Special
Main motor (Std. , Opt.) Std. : 30 HP ; Opt. : 30/40 HP
Threads and feeds
Range of threads (N.O.) 1/2 -28 TPI (60) 1-56 mm (60)
Threads cutting (no.), range M.P. 0.25-14 (60)
D.P. 2-120 (60)
Longitudinal feeds 0.042-2.4 mm (0.0017-0.095 IPR)
Cross feeds 0.021-1.2 mm (0.0091-0.048 IPR)
Rapid traverse-longitudinal, cross 2000-10000 mm/min (80-40"/min)
Diameter of leadscrew 50 mm (2")
Carriage & Apron
Carriage bearing 820 mm (32 1/4")
Cross slide travel 670 mm (26 3/8")
*Compound slide travel 400 mm (15 3/4")
Tailstock
Diameter of quill 115 mm (4 1/2")
Diameter of turnable quill (Opt.) 200 mm (7 7/8")
Travel of quill / 2 Speeds 300 mm (11 3/4")
Center MT # 6
Bearing surface on ways 500 mm (19 3/4")
Ratio of 2 speed quill 1 : 1/4
Bed
Width ; Lower way 560 mm ; 665 mm (22"; 26")
Height 680 mm (26 3/4")
Miscellaneous
Standard 4 jaw independent chuck diameter 810 32 880 35 1000 40 1160 45
Steady rest capacity Standard 30-350 mm (1 1/4"~8")
Optional 300-600 mm (11 7/8"~23 3/4")
Follow rest (Opt.) 30-200 mm (1 1/4"~8")
Taper turning attachment taper / deg. 14 deg. (3"/FT)
Net Weight           kg (lb)
120" center distance 12000
(26400)		 12500
(27500)		 13000
(28600)		 13500
(29700)
each additional 40" increment 1000 (2200)
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