MANUAL LATHES
GTD-44HK
44” – 55” SUPER HEAVY DUTY BIG BORE LATHES
- Hardened and ground Turcite® coated bed ways
- Hardened and ground gears
- 40-HP spindle motor
- Double-set of spindle bearings
- Rear spindle mount optional
- Safety chuck guard
MACHINE SPECIFICATIONS
Capacity & Dimensions
Swing over Bed | 44″ | (1,120 mm) |
Swing over Cross Slide | 27.95″ | (710) |
Swing thru Gap | 55.11″ | (1,400 mm) |
Width of Gap (measured from spindle nose) | 21.26″ | (540 mm) |
Distance between Centers (Dependent upon bed selected) | 39″ – 315″ | (1,000 – 8,000 mm) |
Bed Width | 32″ | (810 mm) |
Spindle
Spindle Bore – (9″ , 10″, 12″ & 15″ spindle bores optional) | 6″ | (152 mm) |
Spindle Nose | A2-11 | A2-15 & A2-20 optional |
Spindle taper in spindle nose | MT-7 | MT-7 |
Spindle center height to base | 49″ | (1,245 mm) |
Spindle Motor Horsepower | 40 HP | |
Spindle Speeds | 16 gears | 4 – 420 RPM |
Spindle Weight Capacity
Workpiece weight limit when held by chuck only | 4,400 lbs | (2,000 kgs) |
Workpiece weight limit when held by chuck and tailstock | 1,5400 lbs | (7,000 kgs) |
Workpiece weight limit when held by chuck, tailstock & steadyrest | 19,800 lbs | (9,000 kgs) |
Carriage
Cross Slide Travel | 23.62″ | (600 mm) |
Carriage Slide Width | 13.75″ | (350 mm) |
Width of Carriage | 34.65″ | (880 mm) |
Compound Slide Travel | 15.75″ | (400 mm) |
Compound Slide Width | 10″ | (250 mm) |
Cutting tool height maximum | 1.5″ x 1.5″ | (40 x 40 mm) |
Tailstock (Electric Motor Driven Body & Quill)
Quill Diameter | 7.87″ | (200 mm) |
Quill Stroke | 11.87″ | (300 mm) |
Quill Taper | MT-6 | MT-7 optional |
Tailstock body set-over adjustment | ±0.4″ | (±10 mm) |
Tailstock body movement | Push-button 1/2 HP electric motor driven | |
Quill Drive | Push-button 1/2 HP electric motor driven |
Thread Cutting
Lead screw diameter (60mm, 12mm pitch metric order) | 2.36″ x 2 TPI |
Thread Cutting Range – 70″ pitches | 0.25 – 30 TPI |
Thread Cutting Range – 62 metric pitches | 1 – 120 mm |
Thread Cutting Range -70 diametral pitches | 1 – 120 D.P. |
Thread Cutting Range – 53 module pitches | 0.25 – 30 M.P. |
Feeds
Feed Shaft Diameter | 1.26″ | (32 mm) |
Feeds – Longitudinal | 0.0028″ – 0.34 / rev | (0.072 – 8.68 mm / rev) |
Feeds – Cross Sign | 0.0014″ 0.17″ / rev | (0.036 – 4.34 mm / rev) |
Power
Connected load – 86 Amps Full Load | Wired 440 vac (220 / 440 vac motor) | |
Coolant Motor / Coolant tank capacity | 0.25 HP | (0.2 kw) |
Rapid Traverse Motor for cross & longitudinal motion | 1 HP | (0.75 kw) |