21" X 90" ACRA MODEL 2190TE (3-1/8" BORE) PRECISION HIGH SPEED GAP BED ENGINE LATHE
One-piece casting base.
Meehanite casting, vibration stress relieved.
Induction hardened and precision ground bed ways, precision hand scraped removable gap.
Turcite B coating between bed and carriage.
Universal type allowing a wide range of inch, metric, M.P., D.P. threads without change gears.
Housing is vibration-absorbent, deflection-free.
Gears are hardened & MMG or REISHAUER ground.
Heavy Duty Spindle:
Machined from forged alloy steel, hardened ground & dynamically balanced.
Three point support by high grade precision, machine tool taper roller & ball bearings.
RIH or LJH wheel can be available on request.
Integrated automatic control for longitudinal & cross feeds, forward & reverse feeds.
Carriage & Slide:
Anti-Float design backlash eliminator fitted in cross slide nut.
Safety clutch at feed shaft.
One shot lubrication in carriage & top slide.
Dual dials supply inch system screw.
Metric dial supply metric system only.
Nylon safety gears in end train.
Shear pin in leadscrew.
Capacity: 21″/28″ x 86″
Swing Over Bed: 21″
Swing Over Cross Slide: 15-1/4″
Swing In Gap: 28-3/4″
Distance Between Centers: 86.6″
Center Height: 10.67″
Bed Width: 12-1/2″
Spindle Nose: D1-8
Spindle Bore: 3-1/8″
Taper of Spindle: MT NO.5
Spindle Speeds – Steps: 12 step
Spindle Speeds – Range: 26 ~ 1,500 RPM
Cross Slide Travel: 11.81″
Compound Slide Travel: 5.9″
Inch Threads: 2~72 TPI
Metric Threads: 0.2 ~ 14 mm
Longitudinal Feeds: 0.0015 ~ 0.04″/rev
Cross Feeds: 0.00075 ~ 0.02″/rev
Quill Diameter: 2.67″
Quill Travel: 6″
Quill Taper: MT NO.4
Spindle Drive Motor: 12-1/2 HP
Voltage: 230V/460V AC / 3 PH
Weight 5700 lbs
Dimensions 146 × 46 × 73 in
12″ 3-Jaw Chuck
16″ 4-Jaw Chuck
Full Length Splash Guard
Steady Rest/Follow Rest
4 position square tool post
Tool box with tools
2 Speed Tailstock