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Republic Lagun Machine Tool American Turnmaster AT-1550-G-TW Manual Lathe


  • Colchester type clutch lathe
  • 15” swing, (geared head) gap bed with forward–reverse disc.
  • Clutch
  • 16 speeds from 25 to 2,000 RPM, cam lock spindle
  • Pressure lubrication
  • Hardened and ground bed
  • 7 ½ Hp 220/440 volts 3 phase motor
  • Turcite anti-friction sliding surface

Includes standard equipment as described above. (TW= 3 V Ways)



The AT-1550-G-TW Manual Lathe is an American Turnmaster precision, high speed engine lathe. This machine comes equipped with the standard features associated with American Turnmaster Lathes. These include hardened and Reishauer ground gears, an alloy steel forged spindle, and Republic Lagun’s signature 3-V-Ways bed. The AT-1550-G-TW Manual Lathe comes with a D1-6 camlock spindle. The spindle assists with stability during heavy duty cutting. This model also allows the operator to stop or start the spindle. This is essential when working with heavy duty or unevenly distributed parts. Another key feature of this model is the mechanical disk clutch located in the headstock. This “Matrix Brand” disk clutch allows it to operate similarly to a Colchester type lathe.

The RL-1550-G-TW also has an optional Electronic Variable Speed (EVS) conversion, which provides full HP at all RPMs. This helps decrease energy consumption by delivering speed levels as needed, as opposed to consistently. By assuring it runs precisely at the users desired speed, the EVS head also avoids disturbing material during processing.

Be sure to ask us about our option to have this lathe American Made!

*Note: Interested in other Engine Tool Room Lathes? Please take a look at our ML-1740 & 2060-G-TW or RL-1460/40 & RL-1640/60. Or browse all manual lathes offered by Lagun Engineering here.

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Lathes Model:AT-1340-G-TWAT-1550-G-TWAT-1840/60/80/120-G-TWAT-2140/60/80/120-G-TWAT- 22/26/30
Swing Over Bed13.39″15.23″18″21″22″ / 26″ / 30″
Swing Over Cross Slide8.27″9.37″11″14″13.38″ / 17.21″ / 21.57″
Distance Between Centers39.37″50″40″/60″/80″/119″40″/60″/80″/119″60″ – 200″
Length of Bed15.75″19″
Spindle Speed RPM Range50-2570 RPM25-2,000 RPM20-1600 RPM20-1600 RPM13-1,200 RPM
Hole Through Spindle1.25″2.2″3.15″3.09″4.094″
Spindle NoseD1-4D1-6D1-8D1-8D1-11
Motor HP5 HP7.5 HP10 HP12.5 HP15HP (20HP Opt)
Disk Clutch HeadstockYesYesYesYesNo
3 V WaysYesYesYesYesYes
Quill Diameter1.97″
Quill Travel4.41″
Inch Thread Range (TPI)2-72 TPI2-72 TPI2-72 TPI2-72 TPI2-72 TPI
Metric Thread Range0.2 – 140.2 – 140.2 – 140.2 – 140.2 – 14
Tailstock Spindle TaperMT 3MT 4MT 5MT 5MT 5
Digital Threading Control?NoNoNoNoNo
CNC or ManualManualManualManualManualManual
Voltage 3/60/220 V

* All Product Specs are Subject to Change at Any Time

One year or 2,000 hours from date of installation, (single shifting) whichever occurs first. For parts and service contact our support team at:


or call



*Applies to domestic sales only.