Republic Lagun UTC-1660
Image: lagun.com, Republic Lagun
Key Specifications
Spindle Taper
Max Turn Length
Accuracy
Repeatability
swing over bed
swing over cross slide
How much does the Republic Lagun UTC-1660 cost?
Price estimate
We do not have a price for the Republic Lagun UTC-1660 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
Long shafts are the reason to pick the Republic Lagun UTC-1660 over its short-bed siblings. It puts 55 in (1,400 mm) between centers under a 16.14 in (410 mm) swing, and the maker's table gives a maximum working length of 49.61 in (1,260 mm) with the manual 4 way tool post or 44.88 in (1,140 mm) with the optional hydraulic P8 turret. Z travel is 52.16 in (1,325 mm).
For work between centers the tailstock matters as much as the bed. Republic Lagun says the tailstock has an increased throat depth so the carriage can travel past the tailstock center and turn the full length of an outside diameter. The quill is 2.283 in (58 mm) in diameter with a # 4 MT taper and 5.5 in (140 mm) of travel. On this length the listed optional hydraulic pump is 2 HP (1.5 kW), where the UTC-1640 lists 1 HP (0.75 kW).
Diameter capacity is 8.66 in (220 mm) with the tool post and 8.27 in (210 mm) with the turret, and swing over the cross slide is 9.05 in (230 mm). The geared headstock covers 25-480 rpm in low and 481-3,000 rpm in high, with constant surface speed standard, and the maker describes a pressurized headstock lubrication system fed from a separate electric pump and reservoir. Its pump motor is listed at ¼ HP (0.18 kW).
The machine weighs 4,960 lb (2,250 kg) net and 6,062 lb (2,750 kg) gross, and packs to 117 in (2,980 mm) x 80 in (2,030 mm) x 87 in (2,200 mm). The table has no X travel figure for this model, and its motor and spindle nose entries are not consistent, so get those confirmed.
Full Specifications
| Parameter | Value |
|---|---|
| Swing Over Bed | 16.14 in (410 mm) |
| Swing Over Cross Slide | 9.05 in (230 mm) |
| Distance Between Centers | 55 in (1,400 mm) |
| Max Turning Length | 49.61 in (1,260 mm) / 44.88 in (1,140 mm) (4 way tool post / Hyd. P8 turret) |
| Max Turning Diameter | 8.66 in (220 mm) / 8.27 in (210 mm) (4 way tool post / Hyd. P8 turret) |
| Bed Width | 10.236 in (260 mm) |
| Bed Ways | 3 V, 3 flat |
| Z Axis Travel | 52.16 in (1,325 mm) |
| Spindle Bore | 2.066 in (52.5 mm) |
| Spindle Taper | No. 6 MT |
| Spindle Speeds | 25-3,000 rpm (Pneumatic Auto-Shift) |
| Spindle Speed Range | L: 25-480 rpm (Infinitely Variable) / H: 481-3,000 rpm (Infinitely Variable) |
| Tool Post | STD. Manual 4 way tool post; Optional: Elec. H4 or Hydraulic P8 turret |
| Turning Tool Size | Tool section 0.78 in (20 mm) |
| Boring Bar Diameter | 0.78 in (20 mm) |
| Tailstock Quill Diameter | 2.283 in (58 mm) |
| Tailstock Quill Taper | # 4 MT |
| Tailstock Quill Travel | 5.5 in (140 mm) |
| Axis Servo Motors X Z | 1 HP (0.75 kW, 3.5 Nm) / 1.61 HP (1.2 kW, 7 Nm) |
| Ball Screw Diameter X Z | 0.787 in (20 mm) (P5, C5) / 1.260 in (32 mm) (P10, C5) |
| Rapid Traverse X Z | 295 ipm (7.5 m/min) / 394 ipm (10 m/min) |
| Positioning Accuracy | ±0.0002 in (±0.005 mm) |
| Repeatability | ±0.0002 in (±0.005 mm) |
| Resolution | ±0.0001 in (±0.00254 mm) |
| Hydraulic Pump Motor | OPT. 2 HP (1.5 kW) |
| Headstock Lubrication Pump | ¼ HP (0.18 kW) |
| Machine Weight | 4,960 lb (2,250 kg) / 6,062 lb (2,750 kg) (net / gross, approx.) |
| Packing Dimensions | 117 in (2,980 mm) x 80 in (2,030 mm) x 87 in (2,200 mm) |
Specifications sourced from lagun.com — verified 2026-10-04
Strengths & Limitations
Strengths
- 55 in (1,400 mm) between centers and 52.16 in (1,325 mm) of Z travel on a 16.14 in (410 mm) swing
- Tailstock designed so the carriage can pass the tailstock center for full-length O.D. turning
- Pressurized headstock lubrication from a separate pump and reservoir, which the maker ties to thermal stability
- Rapid traverse of 394 ipm (10 m/min) in Z and 295 ipm (7.5 m/min) in X
Limitations
- The maker's table gives no X travel for this model
- With the hydraulic P8 turret the working length drops to 44.88 in (1,140 mm)
- Working diameter tops out at 8.66 in (220 mm), so long parts must also be slender
- Needs floor and rigging for 4,960 lb (2,250 kg) net
Best For
Frequently Asked Questions
01
The maker lists a maximum working length of 49.61 in (1,260 mm) with the manual 4 way tool post and 44.88 in (1,140 mm) with the hydraulic P8 turret. Distance between centers is 55 in (1,400 mm) and Z travel is 52.16 in (1,325 mm).
02
A manual tailstock with a 2.283 in (58 mm) quill, # 4 MT taper and 5.5 in (140 mm) of quill travel. The maker says its increased throat depth lets the carriage travel past the tailstock center. Controls for a hydraulic tailstock quill are mentioned as something provision can be made for.
03
Net weight is 4,960 lb (2,250 kg) and gross weight 6,062 lb (2,750 kg). Packing size is 117 in (2,980 mm) x 80 in (2,030 mm) x 87 in (2,200 mm). The maker notes the chip pan is removed from the front, so the back of the machine can go against a wall.
04
Both ways of working are provided. Republic Lagun describes constant surface speed, a conversational control system and manual hand wheel control, and the feature list describes a manual operation control console that slides the full length of the center distance and carries the handwheels, spindle and coolant controls and E-stop.
