PROKING HEAVY DUTY LATHE SERIES

HEAVY DUTY LATHES PA-35.40.45.50 series

The PROKING 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 PROKING Series feature the most modern designs, providing high efficiency and easy operation.
The lathes are built and tested to stringent accuracy standards (ISO 1708-1989 International standard Organization).
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

ELECTRICAL CABINET
SADDLE and APRON
HEADSTOCK and SPINDLE
TAILSTOCK
UNIVERSAL GEAR BOX
BEDWAY

PROKING MACHINE SPECIFICATIONS
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 bad		880	35	1010	39³/₄	113	544³/₄	1275	58¹/₈
Swing over cross slide		610	24	740	29¹/₈	870	34¹/₄	1010	39³/₄
Swing over gap		1340	52³/₄	1470	57³/₄	1600	63	1740	68¹/₂
Length of gap from head stock		600 mm (23³/₄")
Center distance		1500-20000 mm (60-800")
Weight capacity between center		8000 kgs/17600 lbs (6" Bore)
Headstock
Spindle Bore & Spindle speed	3500/4000/4500/5000	153 mm (6") 5-630 rpm
	3500X/4000X/4500X/5000X	230 mm (9") 4-450 rpm
	3500XL/4000XL/4500XL/5000XL	305 mm (12") 3-300 rpm
	3500XXL/4000XXL/4500XXL/5000XXL	508 mm (20") 1.5-180 rpm
Spindle nose 18 Step (Std.)4 Step gear+ infinite speed (Opt.)	3500/4000/4500/5000	A2-11
	3500X/4000X/4500X/5000X	A2-15
	3500XL/4000XL/4500XL/5000XL	A2-20
	4500XXL/5000XXL	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 (32¹/₄")
Cross slide travel		670 mm (26³/₈")
*Compound slide travel		400 mm (15³/₄")
Tailstock
Diameter of quill		115 mm (4¹/₂")
Diameter of turnable quill (Opt.)		200 mm (7⁷/₈")
Travel of quill / 2 Speeds		300 mm (11³/₄")
Center		MT # 6
Bearing surface on ways		500 mm (19³/₄")
Ratio of 2 speed quill		1 : ¹/₄
Bed
Width ; Lower way		560 mm ; 665 mm (22"; 26")
Height		680 mm (26³/₄")
Miscellaneous
Standard 4 jaw independent chuck diameter		810	32	880	35	1000	40	1160	45
Steady rest capacity	Standard	30-350 mm (1¹/₄"~8")
	Optional	300-600 mm (11⁷/₈"~23³/₄")
Follow rest (Opt.)		30-200 mm (1¹/₄"~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)
* Can perform oblique cutting with standard automatic feed. * Specification subject to change without prlor notice.