Hyundai WIA LM1800TT Series
Key Specifications
Y Travel
Max Spindle
Rapid Traverse
Spindle Power
Max Turn Length
max turning diameter
Overview
The Hyundai WIA LM1800TT Series is a twin-turret, twin-spindle CNC turning center family available in three configurations: LM1800TTS (twin turret, sub-spindle), LM1800TTMS (twin turret, milling, sub-spindle), and LM1800TTSY (twin turret, sub-spindle, Y-axis). With 8-inch main and sub chucks, built-in spindles reaching 5,000 RPM, and dual 12-station turrets, the LM1800TT Series is engineered for high-throughput production of medium-diameter complex parts requiring multiple operations.
The built-in main spindle delivers 22/11 kW (29.5/14.8 hp) at up to 5,000 RPM with 358/118 N.m of torque. The built-in spindle design eliminates belt-related vibration, producing smoother surface finishes at high speed — a critical advantage for precision production work. The sub-spindle matches at 5,000 RPM for full-speed backworking. Both spindles use 8-inch hydraulic chucks, providing symmetric capability for main and sub operations with 65 mm bar capacity.
The twin turret configuration with 2 x 12 tool stations (24 total) is the LM1800TT’s defining productivity feature. Both turrets operate simultaneously — one on the main spindle and one on the sub-spindle, or both on the same spindle for balanced turning. Rapid traverse rates of 20/20/40/40/40 m/min across X1/X2/Z1/Z2/ZB axes minimize non-cutting time. The TTMS variant adds 5,000 RPM live milling to the upper turret, while the TTSY variant adds both live milling and 100 mm Y-axis travel for off-center operations.
New LM1800TT Series machines price between $170,000 and $270,000 depending on configuration. The series steps up from the LM1600TT (6-inch class) with more spindle power and chuck capacity, while sharing the same twin-turret architecture. It competes with the DMG MORI CLX 450 TC, Mazak Quick Turn 250MSY, and DN Solutions Puma TT1800SY. The Fanuc 31i-B control handles multi-channel programming for coordinating two turrets and two spindles simultaneously.
Full Specifications
| Parameter | Value |
|---|---|
| Max Turning Diameter | 230 mm (9.1 in) |
| Max Turning Length | mm |
| Main Chuck Size | 8" (210 mm) |
| Sub Spindle Chuck | 8" (210 mm) |
| Bar Capacity | 65 mm (2.56 in) |
| Max Spindle Speed | 5,000 RPM |
| Spindle Motor Power | 22/11 kW (29.5/14.8 hp) |
| Spindle Torque | N.m |
| Spindle Drive | Built-in |
| Upper Turret | 12 stations |
| Lower Turret | 12 stations |
| Total Tool Stations | 2 x 12 (24 total) |
| Tool Size | mm |
| Travel X1 | 165 mm (6.5 in) |
| Travel X2 | 195 mm (7.7 in) |
| Travel Z1 | 700 mm (27.6 in) |
| Travel Z2 | 720 mm (28.3 in) |
| Travel Zb | 668 mm (26.3 in) |
| Y-Axis Travel | 100 mm (3.9 in) (TTSY only) |
| Rapid Traverse Rate | 20/20/40/40/40 m/min X1/X2/Z1/Z2/ZB |
| Rapid Traverse Y | 7.5 m/min (TTSY only) |
| Live Tool Speed | 5,000 RPM (TTMS/TTSY variants) |
| Guideway Type | LM guides |
| CNC Control | Fanuc 31i-B |
| Description | Unit |
| Max Turning Dia | mm |
| Chuck Size | inch |
| Spindle Rpm | r/min |
| Spindle Output | kW |
| Travel | mm |
| Rapid Travel | m/min |
| No Of Tools | EA |
| Milling Tool Speed | r/min |
| Type Of Business | Business Type 1VehiclesIT/ElectronicsMachinery/ShipbuildingComplex & Precise PartsDie&Mold IndustryEnergyOthersBusiness Type 2 |
| E Mail | @ |
Specifications sourced from wiamachine.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Built-in 5,000 RPM spindle eliminates belt vibration for superior surface finish quality on precision production parts
- Twin turret with 24 total tool stations enables simultaneous cutting on both spindles, reducing cycle times by 30-50% versus single-turret machines
- 22 kW spindle power provides a meaningful step up from the 15 kW LM1600TT for more aggressive material removal on 8-inch chuck parts
- 40 m/min rapid traverse on Z-axes is exceptionally fast, minimizing non-cutting time in short-cycle production programs
- TTSY variant with Y-axis adds off-center milling, drilling, and tapping for complete done-in-one part production
- Symmetric 8-inch main and sub chucks provide equal clamping capability for balanced front and back operations
Limitations
- 230 mm max turning diameter limits the machine to medium-size parts despite the 8-inch chuck capacity
- Twin-turret programming complexity requires experienced programmers and multi-channel CAM software such as GibbsCAM or ESPRIT
- Built-in spindle service is more complex and costly than belt-driven designs when motor issues arise
- Hyundai WIA North American dealer network, while growing, is not as extensive as Mazak, Haas, or DMG MORI for field service
Best For
Frequently Asked Questions
01
LM1800TTS = Twin Turret + Sub-spindle (turning only on both turrets). TTMS = Twin Turret + Milling + Sub-spindle (adds 5,000 RPM live tooling to upper turret for milling, drilling, and tapping). TTSY = Twin Turret + Sub-spindle + Y-axis (adds both live tooling and 100 mm Y-axis travel for off-center operations). Each step up adds capability and approximately $30,000-$40,000 to the price.
02
The LM1800TT has 8-inch chucks versus the LM1600TT's 6-inch, more spindle power (22 kW versus 15 kW), and higher torque (358 N.m versus 208 N.m). The LM1600TT is faster at 6,000 RPM versus 5,000 RPM. Choose the LM1800TT for larger parts requiring more power; the LM1600TT for small parts at maximum speed.
03
New LM1800TT Series machines price between $170,000 and $270,000. The base TTS model starts around $170,000-$200,000, the TTMS with live milling runs $200,000-$235,000, and the full TTSY with Y-axis reaches $235,000-$270,000. Add $15,000-$25,000 for a bar feeder to complete the production cell.
04
Multi-channel CAM software is essential for efficiently programming the LM1800TT. Leading options include GibbsCAM (strong multi-turret/multi-spindle support), ESPRIT (Hexagon), Mastercam Mill-Turn, and SolidCAM. These systems can visualize and synchronize both turrets, optimize timing to minimize idle time, and generate the multi-channel G-code required by the Fanuc 31i-B control.
Videos
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Community Discussions
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Links to community discussions. Summaries are editorial — visit the original thread for full context.
