GOSAN 1780 Precision 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 1780, 1780V
NOMINAL SIZE
Swing over Bed.................................................440mm 17-5/16in
Swing over Cross Slide.........................................272mm 10-3/4im
Height of Center...............................................220mm 8-5/8in
Distance Between Centers.......................................2000mm 80in
BED
Width of Bedways...............................................330mm 13 in
Total Length of Bed............................................3020mm 118in
Gap Type.........................Swing over Gap................600mm 26in
Lenth of Gap..................300mm 11-3/4in
Width in front of face plate..190mm 7-1/2in
SPINDLE
Spindle nose mounting..........................................D1-8 CAMLOCK
Spindle bore...................................................86mm 3-3/8in
Taper of spindle bore..........................................M.T.#5
Number of spindle speeds.......................................12
Range of spindle speeds........................................20-1800 R.P.M.
TOOL SLIDE
Total travel of cross slide....................................260mm 10-1/4in
Total travel of top slide......................................130mm 5-1/8in
Max. size cutting tool.........................................25mm 1 in
TAIL STOCK
Total travel of tailstock barrel...............................150mm 6 in
Taper in tailstock barrel......................................M.T.#5
Diameter of barrel.............................................75mm 3 in
THREADS
Lead screw diameter & pitch....................................Dia. 35mm 1-3/8in Pitch : 6mm 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 M.P.
FEEDS
Feed rod diameter..............................................25mm 1in
Number of feed change..........................................36
Range of longitudinal feeds....................................0.06-2.00mm/rev. 0.0025-0.07in/rev.
Range of cross feeds...........................................0.03-0.80mm/rev. 0.0010-0.03in/rev.
MOTOR
Main spindle motor.............................................10HP 7kW
Coolant pump motor.............................................1/8HP 0.1Kw
Machine net weight.............................................2200kgs
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