Republic Lagun ATC-618-CL-CNC
Image: lagun.com, Republic Lagun
Key Specifications
Rapid Traverse
Spindle Power
Max Turn Length
swing over bed
max turning diameter
bar capacity
How much does the Republic Lagun ATC-618-CL-CNC cost?
Price estimate
We do not have a price for the Republic Lagun ATC-618-CL-CNC that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.
Overview
The Republic Lagun ATC-618-CL-CNC is a small precision CNC lathe for collet and chucker work: 6 in (150 mm) maximum turning diameter, 18 in (457 mm) maximum turning length and a 5C collet spindle that takes bar up to 1-1/16 in (27 mm). The maker sells it under the American Turnmaster name as a CNC tool room lathe.
Tooling is gang style. The standard equipment list includes a gang tool block, so tools sit in a row on the cross slide and the machine moves from one to the next without indexing a turret. That suits the short strokes: X travel is 6 in (155 mm) and Z travel 13½ in (340 mm), covered at a rapid traverse rate of 787 in/min (20 m/min). A simple air collet closer is standard, and a tailstock with No. 2 MT taper and 3-3/4 in (95 mm) of quill travel is there for longer parts.
The spindle drive is a 3 HP (2.24 kW) YASKAWA inverter motor giving 50-4,000 rpm, and the table adds a 50-6,000 rpm range tied to a 5 HP drive. The spindle nose is a 4-degree taper, the hole through the spindle 1-1/4 in (31.75 mm), and the largest chuck 6 in (152 mm). Both axes use precision ball screws and can be jogged from a mobile X, Z MPG.
The swing is 14.96 in (380 mm), far more than the turning diameter, so the limit is the cross travel and tooling, not clearance. Electrics are 220V / 60 Hz / 3 Phase. The maker's dimension and weight rows do not agree between inch and metric, so get a foundation drawing before planning the floor.
Full Specifications
| Parameter | Value |
|---|---|
| Swing Over Bed | 14.96 in (380 mm) |
| Max Turning Diameter | 6 in (150 mm) |
| Max Turning Length | 18 in (457 mm) |
| Bar Capacity | 1-1/16 in (27 mm) (5C collet) |
| Spindle Bore | 1-1/4 in (31.75 mm) |
| Spindle Speed Range | 50-4,000 rpm (3 HP) / 50-6,000 rpm (5 HP) |
| Spindle Nose | 4-degree taper |
| Chuck Size | 6 in (152 mm) |
| X Axis Travel | 6 in (155 mm) |
| Z Axis Travel | 13½ in (340 mm) |
| Rapid Traverse Rate | 787 in/min (20 m/min) |
| Tailstock Quill Travel | 3-3/4 in (95 mm) |
| Tailstock Quill Taper | No. 2 MT |
| Spindle Motor Power | 3 HP (2.2 kW) |
Specifications sourced from lagun.com — verified 2026-10-04
Strengths & Limitations
Strengths
- Rapid traverse rate of 787 in/min (20 m/min) on short X and Z strokes
- 5C collet spindle with a simple air collet closer as standard
- Gang tool block included in the standard equipment
- 50-4,000 rpm from the 3 HP (2.24 kW) YASKAWA inverter motor, with a 50-6,000 rpm range listed for a 5 HP drive
- Tailstock with No. 2 MT taper and 3-3/4 in (95 mm) of quill travel
Limitations
- Bar capacity through the 5C collet is 1-1/16 in (27 mm)
- Maximum turning diameter is 6 in (150 mm) and Z travel 13½ in (340 mm)
- Gang tooling limits the number of tools that fit along 6 in (155 mm) of X travel
- The maker's machine dimensions and weights are not consistent between inch and metric
Best For
Frequently Asked Questions
01
Maximum turning diameter is 6 in (150 mm) and maximum turning length 18 in (457 mm). Bar stock up to 1-1/16 in (27 mm) passes through a 5C collet, the hole through the spindle is 1-1/4 in (31.75 mm), and the maximum chuck diameter is 6 in (152 mm).
02
The table lists variable speeds of 50-4,000 rpm with the 3 HP drive and 50-6,000 rpm with a 5 HP drive. The standard feature list describes a 3 HP (2.24 kW) YASKAWA inverter motor running 50-4,000 rpm, so the higher range is one to ask about.
03
The maker's standard list names a gang tool block, not a turret. Tools are mounted in a row and brought to the work by the X axis, which has 6 in (155 mm) of travel. A tailstock with No. 2 MT taper is included.
04
The feature list gives 220V / 60 Hz / 3 Phase electrics. The spindle EVS drive motor is 3 HP, and the page lists a coolant pump and work light as standard equipment. Confirm the supply amperage with the maker, since the table does not state it.
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