GMC Heavy Duty Gap Bed Lathes
6-1/4" spindle bore, 20HP
Standard Features:
- ISO 9001 certified
- Large spindle bore 6 -1/4”
- Heavy Duty spindle D1-11
- Heavy Duty guideway width 24”
- Heavy Duty main motor 20 HP
- 18 spindle speeds from 9 to 691 rpm
- 31 kinds of inch threads, and 53 kinds of metric threads
- Threading and feeding rate change without changing gears
- 4-way rapid traverse to carriage and cross slide
- Spindle is balanced, hardened and precision ground
- Spindle is supported at 3-point by high precision bearings
- All gears and shafts are hardened and precision ground
- Guideways induction hardened and precision ground
- Automatic lubrication system in headstock and feed box
- Adjustable hydraulic clutch for spindle turning and brake
- Power 220V /208V , 3 phase, 60 HZ ( 440V /460V is optional )
- One year industrial warranty for parts
Standard Free Equipment:
- 20" 3-jaw chuck with top reversible jaws
- 25" 4-jaw chuck
- 31-1/2" Face plate
- 12" drive plate
- 20" large steady rest
- Follow rest
- Removeable gap
- 4-way toolpost
- Foot brake
- Work light and coolant system
- Section splash guard on rear of carriage
- (2) dead centers and (1) reducing sleeve
- Thread chasing dial
- 4-way rapid traverse on carriage
- Tool box
Optional Equipment:
- Taper attachment, 30" travel, # TA-40H - $2,750.00
- 6pc set quick change tool post set - $1,750.00
- 18" - 28" large steady rest with roller jaws - $3,950.00
- DRO for GML-4080HLB6 - SINO, #SINO-2080, 2 axis, free install - $1,250.00
- DRO for #GML-4080HLB6 - NEWALL, #NW2080, 2 axis, free install - $2,950.00
- DRO for #GML-40120HLB6 - NEWALL, #NW20120, 2 axis,free install - $3,850.00
- DRO for #GM-40180HLB6 - NEWALL, #NW20180,2 axis, free install - $5,950.00
- DRO for #GML-40240HLB6 - NEWALL, #NW20240,2 axis, free install - $7,650.00
Specifications:
| Model | GML-4080HLB6 | GML-40120HLB6 | GML-40180HLB6 | GML-40240HLB6 |
| Max. swing over bed | 40-9/16" | 40-9/16" | 40-9/16" | 40-9/16" |
| Max. length of workpiece | 80" | 120" | 180" | 240" |
| Max. swing over cross slide | 27-9/16" | 27-9/16" | 27-9/16" | 27-9/16" |
| Max. Swing in gap | 47-1/4" | 47-1/4" | 47-1/4" | 47-1/4" |
| Width of Bed | 24" very wide bed | |||
| Effective length in gap to spindle | 15" | |||
| Effective length in gap to chuck | 9" | |||
| Spindle bore | 6 1/4" , D1-11 | |||
| Taper of spindle center | M.T.# 6 | |||
| Spindle speeds | 9 – 691 rpm / 18 steps | |||
| Longitudinal feeds | 0.0027-0.66 IPR, 64 kinds | |||
| Cross feeds | 0.00157-0.378 IPR, 64 kinds | |||
| Inch threads | 32-2TPI, 31 kinds | |||
| Metric threads | 1-240 mm , 53 kinds | |||
| Module threads | 0.25-60 mm, 47 kinds | |||
| Diametral pitch threads | 60 – 1/2 DP , 47 kinds | |||
| Max. travel of top slide | 8-7/8" | |||
| Max. travel of cross slide | 24-3/16" | |||
| Longitudinal rapid travel speed | 126" / min. | |||
| Cross slide rapid travel speed | 75" / min. | |||
| Diameter of tailstock quill | 4-3/4" | |||
| Max. travel of tailstock quill | 10-5/8" | |||
| Taper of tailstock quill center | M.T. # 6 | |||
| Max. workpiece weight | 6,5000 LBS | |||
| Main motor | 20 HP, 220V or 440V, 3 phase, prewired on 220V | |||
| Rapid traverse motor | 2 HP, 220 or 440V, 3 phase, prewired on 220V | |||
| Coolant pump motor | 1/8 HP, 220V or 440V, 3 phase, prewired on 220V | |||
| Machine weight, approx., LBS | 15,100 | 16,100 | 18,100 | 21500 |
| Overall dimensions, LxWxH | 171 x 69 x 81 | 204 x 69 x 81 | 263 x 69 x 81 | 327 x 69 x 81 |
