Hyundai WIA LM1800TTSY
Key Specifications
Max Turn Length
max turning diameter
chuck size
bar capacity
main spindle speed
main spindle power
Overview
The Hyundai WIA LM1800TTSY is a twin-turret, twin-spindle CNC turning center with Y-axis and live tooling capability, designed for high-productivity production of complex parts in a single setup. The model designation tells the story: LM1800 (8-inch chuck lathe), TT (twin turret), S (sub-spindle), Y (Y-axis). This is a serious production machine built to eliminate secondary operations by combining main-spindle turning, sub-spindle backworking, upper turret milling, and lower turret turning simultaneously.
The main spindle delivers 18.5 kW of power at up to 5,000 RPM with an 8-inch (210 mm) hydraulic chuck and 65 mm bar capacity through the spindle. The sub-spindle matches at 15 kW and 5,000 RPM, providing full backworking capability for complete done-in-one part production. Both spindles feature C-axis for angular positioning during milling and cross-drilling operations. The upper turret has 12 stations with Y-axis travel (±52.5 mm) and live tooling capability, while the lower turret provides 12 stations for dedicated turning operations. Both turrets can work simultaneously on different spindles, dramatically reducing cycle times.
The twin-turret architecture is the LM1800TTSY's primary advantage. While one turret turns on the main spindle, the other can simultaneously turn or mill on the sub-spindle — or both turrets can work on the same spindle for balanced turning. This parallelism can reduce cycle times by 30-50% compared to single-turret machines producing the same parts. The Fanuc 31i-B control handles the multi-channel programming that coordinates two turrets and two spindles operating simultaneously.
The LM1800TTSY competes with the DMG MORI CLX 450 TC, Mazak Quick Turn 250MSY, and Doosan Puma TT1800SY. Hyundai WIA positions the machine on productivity and value — new LM1800TTSY machines typically price between $180,000 and $280,000, which represents a 15-25% savings over comparable Japanese and European twin-turret machines. The machine is manufactured in South Korea and sold through Hyundai WIA's expanding North American dealer network.
Full Specifications
| Parameter | Value |
|---|---|
| Max Turning Diameter | 360 mm (14.2 in) over bed |
| Max Turning Length | 550 mm (21.7 in) |
| Chuck Size | 210 mm (8 in) hydraulic, both spindles |
| Bar Capacity | 65 mm (2.56 in) through main spindle |
| Main Spindle Speed | 5,000 RPM |
| Main Spindle Power | 18.5 kW (24.8 hp) |
| Sub Spindle Speed | 5,000 RPM |
| Sub Spindle Power | 15 kW (20.1 hp) |
| C Axis | Both spindles |
| Y Axis Travel | ±52.5 mm (±2.07 in) upper turret |
| Upper Turret | 12 stations, live tooling, Y-axis |
| Lower Turret | 12 stations, turning |
| Live Tool Speed | 6,000 RPM |
| Live Tool Power | 5.5 kW (7.4 hp) |
| Travel X Upper | 200 mm (7.87 in) |
| Travel Z Upper | 550 mm (21.7 in) |
| CNC Control | Fanuc 31i-B |
| Machine Weight | 7,200 kg (15,873 lb) |
Specifications sourced from wiamachine.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Twin-turret simultaneous machining reduces cycle times by 30-50% compared to single-turret machines — both turrets can cut on different spindles at the same time
- Complete done-in-one capability with twin spindles, twin turrets, Y-axis, and live tooling eliminates secondary operations and reduces work-in-process inventory
- 24 total tool stations (12 upper + 12 lower) accommodate complex parts with many operations without stopping for tool setup changes
- 15-25% price advantage over comparable Japanese and European twin-turret turning centers while delivering similar productivity
- Y-axis with live tooling at 6,000 RPM enables off-center milling, drilling, and tapping operations that eliminate the need for a secondary milling machine
- Fanuc 31i-B multi-channel control provides proven reliability for coordinating simultaneous twin-turret/twin-spindle operations
Limitations
- Twin-turret programming complexity requires experienced programmers and specialized CAM software that supports multi-channel synchronization
- 65 mm bar capacity through the main spindle limits bar-fed production to smaller diameter stock — larger-diameter parts must be chucked
- The machine's value proposition depends on production volume — low-volume job shops may not fully utilize the twin-turret simultaneous machining capability
- Hyundai WIA's North American dealer network, while growing, is not as dense as Mazak, Haas, or DMG MORI for field service and applications support
Best For
Frequently Asked Questions
01
LM1800 indicates the lathe model with 8-inch chuck capacity. TT means twin turret (upper and lower turrets). S means sub-spindle. Y means Y-axis capability on the upper turret. So the full designation tells you it's a twin-turret, sub-spindle, Y-axis turning center — a fully equipped production mill-turn machine.
02
The upper and lower turrets are independently controlled CNC axes. When a part is in the main spindle, the upper turret can mill or turn while the lower turret simultaneously performs a different turning operation. When parts are in both spindles (main and sub), each turret can work on a different spindle simultaneously. This parallelism is managed by the Fanuc 31i-B's multi-channel programming capability, where each channel controls one turret independently.
03
New LM1800TTSY machines price between $180,000 and $280,000 depending on options like high-pressure coolant, chip conveyor, bar feeder interface, parts catcher, and software packages. This positions it 15-25% below comparable machines from DMG MORI, Mazak, and Nakamura-Tome. Used machines from recent years appear occasionally in the $120,000-$180,000 range.
04
Multi-channel CAM software is essential for efficiently programming the LM1800TTSY. Leading options include GibbsCAM (strong multi-turret/multi-spindle support), ESPRIT (Hexagon), Mastercam Mill-Turn, and SolidCAM. These CAM systems can visualize and synchronize the operations of both turrets and both spindles, optimize timing to minimize idle time, and generate the multi-channel G-code programs that the Fanuc 31i-B requires.
05
Both are Korean-built twin-turret sub-spindle lathes in the 8-inch chuck class. Specs are very comparable: similar spindle speeds, power, and tool counts. Doosan typically has a larger dealer network in North America, which is an advantage for service and support. Hyundai WIA often has a slight price advantage. Both use Fanuc controls. The choice often comes down to local dealer quality, pricing, and any existing brand relationship.
06
Yes. With a bar feeder for continuous stock supply, parts catcher for finished part collection, and the machine's twin-spindle part handoff capability, the LM1800TTSY is well-suited for unattended production. The 24 tool stations and Fanuc control with tool life management support extended unattended runs. Many shops run these machines with one operator monitoring 3-4 machines simultaneously.
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