51" X 240" ACRA MODEL 51240SGT PRECISION GAP BED HEAVY DUTY ENGINE LATHE
Headstock:
• The spindle is supported by high precision bearings suitable for both heavy and precision cutting.
• The speeds of spindle have 12 steps and designed on theoretical base. All gears and shafts are made of Ni-Cr-Mo steel and carbonize and ground.
• Control of main drive through electromagnetic brake, and automatic forced lubrication.
• Spindle Bore size selections- 153mm (6”), 230mm (9”), 255mm (10”), 310mm (12”), 355mm (14”), 405mm (16”), & 530mm (21”).
Gearbox:
• The Gear Box is entirely enclosed construction and provide a range of feedings or thread cuttings (inch, metric, module pitch and diametrical pitch).
• Inch and Metric threading without changing gears.
• Oil both lubrication and built in safety clutch safeguards the continuous and proper operation of the universal gear box.
Carriage and Apron:
• The Compound Rest can be fixed on the cross-slide anywhere, convenient for cutting work application.
• The Apron gives automatic lubrication and locked-safety device protects threads and feeding.
• Rapid traverse drive for longitudinal-cross feeding and forward & reverse feed operates very light and convenient.
Taper Attachment:
• The Taper Attachment is designed to easily operate and rapidly cut taper in high accuracy; the device can produce ± 10 angles.
• Electric cable in steel cover to protect wire from chips and prevent trouble with electric wires.
Specifications:
Capacity:                                           51″/72″ x 240″
Swing Over Bed:                               51-1/2″
Swing Over Cross Slide:                    39-3/8″
Swing In Gap:                                    72-6/8″
Width of Gap:                                   18-1/2″
Distance Between Centers:               240″
Bed Width:                                        26"
Spindle Nose:                                    A2-11
Spindle Bore:                                    6″
Taper of Spindle:                               MT NO.6
Spindle Speeds – Range:                  3~300 RPM
Cross Slide Travel:                             25″
Compound Slide Travel:                    16-1/2″
Rapid Travel Speed to Carriage:        807″/minute
Inch Threads:                                    1/4 ~ 30 TPI
Metric Threads:                                 1 ~ 120 mm
Module Threads:                               0.25 ~ 30 mm
Diametrical Threads:                         1 ~ 120 D.P.
Longitudinal Feeds:                           0.004″ ~ 0.40″/rev
Cross Feeds:                                      0.002″ ~ 0.20″/rev
Tailstock:
     Quill Diameter:                             4-7/8″
     Quill Travel:                                  13-3/8″
     Quill Taper:                                   MT NO.6
Spindle Drive Motor:                         30 HP x 4P
Voltage:                                             230V/460V AC /3 PH
Weight                                              30,320 lbs
Dimensions                                       340 × 80 × 80 in
Standard Equipment:
1 SET Electromagnetic Brake
1 SET 4-Way Rapid Traverse
1 PC Center Sleeve
1 PC Tool Post Wrench
1 SET Anchor Bolt
1 SET Tool Box & Tool
1 SET Coolant System
1 PC Work Light
1 PC Steady Rest 11.6″
1 PC Travel Splash Guard
1 PC 4 Way Tool Holder