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Ruggedly
Built… Maximum Stability… |
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Here are the Proking Heavy Duty Gap Lathes designed and engineered to let you turn heavy parts smoothly and efficiency. Their massive construction ensures maximum stability while performing heavy duty cutting operations. Built by our experienced technicians, these heavy duty gap lathes have been carefully inspected and tested before shipment to ensure high performance turning year after year. |
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HIGH
PRECISION, MAXIMUM DURABILITY, |
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This quality designed and engineered heavy duty precision lathe delivers extremely powerful cutting capability and maximum rigidity, It is ideal for a wide variety of machining applications for various industries, such as machine parts, mining, steel refining, power plant, paper making, ship building, textile, and general industrial machinery. It gives high precision machining performance and easy to operate. |
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FEATURES
 Saddle and apron Mechanical power feed & rapid travel for saddle, cross slide, tool post |
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 Taper turning attachment (opt.) (PA, PB Series) |
 Taper turning attachment (opt.) (PK Series) |
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 3-Shear bed way (PK Series) |
 Tailstock (PK Series) |
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 Headstock and spindle 18 step spindle speed |
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 Infinitely variable speed electrical cabinet (opt.) Constant surface speed (opt.) |
 Spindle Bore 21” (Ø535mm) |
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SPECIFICATIONS
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ITEM \ MODEL |
MA | PA | ||||||||
| 17 series |
20 series |
35 series |
40 series |
45 series |
50 series |
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| CAPACITY | ||||||||||
| Swing over bed | 17” (430mm) |
20” (510mm) |
35” (880mm) |
39-3/4” (1010mm) |
44-3/4” (1135mm) |
50-1/8”
(1275mm) |
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| Swing over cross slide | 10.4 (260mm) |
13.5” (340mm) |
24” (610mm) |
29-1/8” (740mm) |
34-1/4” (870mm) |
39-3/4”
(1010mm) |
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| Swing over gap | 24-1/2” (685mm) |
27-1/2” (760mm) |
52-3/4” (1340mm) |
57-3/4” (1470mm) |
63” (1600mm) |
68-1/2”
(1740mm) |
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| Length
of gap from head stock |
23-3/4” (600mm) | |||||||||
| Center distance | 33.5” 850 |
43.3” 1100 |
63” 1600 |
82.7”2100 | 102.4”2600 | 122” 3100 |
60”-800” (1500-20000mm) | |||
| HEADSTOCK | ||||||||||
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Spindle nose |
D1-6 or A1-6, D.8 or A1-8 | A2-11, A2-15, A2-20, A2-28, SPECIAL | ||||||||
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Spindle bore |
2-9/16” Ø65(std.) 3 1/4”Ø83(opt.) | 153mm,230mm,318mm,360mm,410mm,510mm | ||||||||
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Spindle speed |
12
speed, 36-1800rpm (36, 50, 72, 105, 130, 180, 250, 375, 620, 880, 1220, 1800) |
5-630, 4-500, 3-400, 2.5-300, 2-250, 1.5-180 | ||||||||
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Main motor |
71/2HP(std) 10HP(opt) | 20HP(std) 30/40HP(opt) | ||||||||
| THREADS AND FEEDS | ||||||||||
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Range of threads |
4 TPl or 6mm pitch |
2/1-28TPI (60), 1-56mm(60) | ||||||||
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Threads
cutting (NO.), |
18 kinds 0.3-3.5mm | M.P. 0.25-14(60) | ||||||||
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Threads cutting –D.P. |
21 kinds 8-44dp | D.P.0.2-112(60) | ||||||||
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Longitudinal feeds |
0.002-0.016” (0.05-0.4mm) |
0.0017 IPR-0.095 IPR, 0.042~2.4mm |
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| Cross feeds | 0.0008-0.006” (0.02-0.15mm) | 0.009 IPR-0.0481 IPR, 0.02~1.2mm | ||||||||
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Rapid traverse-longitudinal, cross |
80”-40”/min (2000-1000mm/min) |
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| CARRIAGE | ||||||||||
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Cross slide travel |
12” (305mm) | 26-3/8” (670mm) | ||||||||
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Compound slide travel |
5” (130mm) | 450mm | ||||||||
| TAILSTOCK | ||||||||||
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Diameter of quill |
2-9/16”
( 65mm) |
4-1/2”
(115mm) |
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Taper of center |
MT#4 | MT#6 | ||||||||
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Bearing surface on ways |
10”(250mm) | 19-3/4”(500mm) | ||||||||
| BED | ||||||||||
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W (Auxiliary guide) |
330mm |
22”(26”)/560mm(650mm)x 26-3/4”(680mm) |
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NET WEIGHT |
4400lbs (2000kgs) |
5000lbs (2300kgs) |
24200lbs (11000kgs) | 24970lbs (11350kgs) |
25740lbs (11700kgs) |
26510lbs (12050kgs) |
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ITEM \ MODEL |
PB | PK | ||||||
| 50 series |
60 series |
70 series |
70 series | 80 series |
90 series |
100 series |
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| CAPACITY | ||||||||
| Swing over bed | 50-1/8” (1275mm) |
60-1/8” (1527mm) |
70-1/2” (1790mm) |
70-1/2” (1800mm) |
80” (2040mm) |
90” (2290mm) |
100”
(2540mm) |
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| Swing over cross slide | 37-3/8” (950mm) |
47-1/4” (1201mm) |
57-3/8” |
53”
(1350mm) |
62-1/2” (1590mm) |
72-2/5” (1840mm) |
82”
(2090mm) |
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| Swing over gap | 70-1/2” (1700mm) |
80-1/4” (2040mm) |
90-1/2” (2300mm) |
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| Length
of gap from head stock |
23-3/4” (600mm) |
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| Center distance | 60”-800” (1500-20000mm) |
60”-800” (1500-20000mm) |
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| HEADSTOCK | ||||||||
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Spindle nose |
A2-11, A2-15, A2-20, A2-28, SPECIAL |
A2-15, A2-20, A2-20, A2-28, SPECIAL |
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Spindle bore |
153mm, 230mm, 318mm, 360mm,410mm, 510mm |
230mm, 318mm, 360mm, 410mm, 510mm |
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Spindle speed |
5-630, 4-500, 3-400, 2.5-300, 2-250, 1.5-180 | 4-500, 3-400, 2.5-300, 2-250, 1.5-180 | ||||||
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Main motor |
30HP(std) 40/50HP(opt) | 50HP(std) 75/100HP(opt) | ||||||
| THREADS AND FEEDS | ||||||||
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Range of threads |
2/1-28TPI (60), 1-56mm(60) |
2/1-28TPI (60), 1-56mm(60) | ||||||
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Threads
cutting (NO.), |
M.P. 0.25-14(60) |
M.P. 0.25-14(60) |
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Threads cutting –D.P. |
D.P.0.2-112(60) | D.P.0.2-112(60) | ||||||
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Longitudinal feeds |
0.018 IPR-0.1 IPR, 0.045~2.55mm | 0.018 IPR-0.1 IPR, 0.045~2.55mm | ||||||
| Cross feeds | 0.01 IPR-0.05 IPR, 0.023~1.28mm | 0.01 IPR-0.05 IPR, 0.023~1.28mm | ||||||
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Rapid traverse-longitudinal, cross |
80”-40”/min (2000-1000mm/min) | 80”-40”/min (2000-1000mm/min) | ||||||
| CARRIAGE | ||||||||
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Cross slide travel |
31-1/2”” (800mm) |
1300mm (std.) |
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Compound slide travel |
500mm | 500mm(std.) Dualcompound (opt.) | ||||||
| TAILSTOCK | ||||||||
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Diameter of quill |
5-3/4”
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11”
(280mm) |
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Taper of center |
MT#6 | MT#6 | ||||||
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Bearing surface on ways |
23-5/8”(250mm) | 44”(1120mm) | ||||||
| BED | ||||||||
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W (Auxiliary guide) |
28”(32”)/712mm(812mm) |
48”(54”)/1210mm(1370mm) | ||||||
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NET WEIGHT |
30000lbs (13630kgs) |
32250lbs (14660kgs) |
34500lbs (15680kgs) |
21000 kgs |
23000 Kgs |
25000 Kgs |
27000 Kgs |
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153mm)
