Republic Lagun Machine Tool Co.

American Turnmaster LS Series Lathes

The American Turnmaster lathe is a manual tri v-way lathe that is designed for accuracy and dependability for a variety of industry applications. The LS series offers a 28” – 36” swing with distance between centers of up to 240” and a main drive motor provides a constant 20Hp.

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Ground
Bed Ways
Hardened and Ground
Spindle
Speeds
12 in Geometric Progression
2 Speed
Tailstock
1:1 and 4:1
System Coolant System and Guard

Specifications

Imperial Metric
Table
Swing over bed28.75 - 36.50"730 - 930 mm
Swing over cross slide20 - 27.50"500 - 700 mm
Swing through gap40 - 47"1000 - 1200 mm
Gap length12"304 mm
Bed width18 1/8"460 mm
Centers distance60 to 240"1500 to 6000 mm
Headstock
Spindle nose, standard4.13" D or A105 mm D or A
Spindle SleeveMT# 5 for D or AMT# 5 for D or A
Spindle bore, option6.02" A2-11 Nose153 mm A2-11 Nose
Spindle speeds, no.12 steps, 15 - 1000 RPM12 steps, 15 - 1000 RPM
Spindle speed range
Low15 - 55 RPM15 - 55 RPM
Medium70 - 230 RPM70 - 230 RPM
High340 - 1000 RPM340 - 1000 RPM
Carriage
Cross Slide Travel16.50"425 mm
Compound Travel10"250 mm
Travels feeds threads
Leadscrew diameter1.75” x 2 TPI45 mm
Thread No & Range.36 e/a from 2 to 28 TPI,38 e/a from 0.8 to 14 mm,
D.P. Threads No & Range:36 e/a from 4 to 56 D.P.36 e/a from 4 to 56 D.P.
Module Peach threads24 e/a from 0.5 to 7 M.P.24 e/a from 0.5 to 7 M.P.
Longitudinal feed range.002 to .0276 IPR0.05 to 0.7 mm
Cross feed range.001 to .0136 IPR0.025 to 0.35 mm
Rapid Traverse (option)
Longitudinal146 IPM (3.7 M / min)146 IPM (3.7 M / min)
Cross72 IPM (1.85 / min)72 IPM (1.85 / min)
Cross slides travel16.50"425 mm
Top slide travel10"250 mm
Tailstock
Tailstock quill diameter4"105 mm
Tailstock center taperNo. 6 MTNo. 6 MT
Quill traverse9"230 mm
Quill hand feed ratio(2-speed) 1:1 & 4:1(2-speed) 1:1 & 4:1
Motor
Main drive motor (Constant)20 HP14 kW
Coolant pump:0.25 HP0.19 kW
Weight
Net Weight11,880 - 19,8005,388 - 8,981 kW

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