GOSAN 1740A/1740AV Variable Speed Lathe
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ConditionNew
New
FEATURES:
˙Heavy duty geared head; hardened and ground gears.
˙82mm. 86mm. 3-3/8inch hole through spindles.
˙3-point supported spindle using 2 precision taper roller bearings and 1 ball bearing.
˙12 steps spindle speeds 20 – 1800 rpm. shift in geometric progression.
˙Quick-change universal gearbox for inch, metric, DP, MP, threading, and multiple thread.
˙Forced spray lubrication system used for headstock.
˙One shot lubrication pump supply oil cross slide and bed-ways.
˙Adjustable overload clutch in apron to ensure proper cutting load.
˙Cross slide screw permanently immersed in oil and supported by thrust bearing.
˙Induction hardened and precision ground bed-way.
˙One piece base for maximum rigidity.
MODEL 1740, 1740V
NOMINAL SIZE
Swing over Bed.................................................434mm 17in
Swing over Cross Slide.........................................277mm 10-7/8in
Height of Center...............................................217mm 8-1/2in
Distance Between Centers.......................................1000mm 40in
BED
Width of Bedways...............................................300mm 12in
Swing over Gap.................................................630mm 25in
Legnth of Gap..................................................250mm 10in
SPINDLE
Spindle nose mounting..........................................D1-6 CAMLOCK
Spindle bore...................................................58mm 2-1/4in
Taper of spindle bore..........................................M.T.#6
Number of spindle speeds.......................................12(Variable speed change: 3steps for AV type)
Range of spindle speeds........................................20 - 2000 R.P.M. (Variable speed change:10-2000R.P.M. for AV type)
CARRIAGE
Total travel of cross slide....................................235mm 9-1/4 in
Total travel of top slide......................................130mm 5-1/4in
Max. size cutting tool.........................................25mm 1in
TAIL STOCK
Total travel of tailstock barrel...............................125mm. 5in
Taper in tailstock barrel......................................M.T.#4
Diameter of barrel.............................................58mm 2-1/4in
THREADS
Lead screw diameter & pitch....................................Dia. 32mm. pitch 6mm Dia. 1-1/4” 4 T.P.I.
Number of inch threads.........................................48
Range of inch threads..........................................2-72 TPI
Number of metric pitches.......................................48
Range of metric pitches........................................0.2-14 mm
Number of Diametral pitches....................................24
Range of Diametral pitches.....................................8-60 D.P.
Number of Module pitches.......................................24
Range of Module pitches........................................0.2-3.5 MOD
FEEDS
Range of longitudinal feeds....................................0.04-1.00mm./rev. 0.0015-0.04in./rev.
Range of cross feeds...........................................0.02-0.50mm./rev. 0.0075-0.02in./rev.
MOTOR
Main spindle motor.............................................3.75KW. 5HP Electrical Brake
Coolant pump motor.............................................0.09KW. 1/8HP
Machine net weight.............................................1500kgs
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