Hyundai WIA L4000L Series
Key Specifications
Max Spindle
Spindle Power
Max Turn Length
max turning diameter
chuck size
spindle torque
Overview
The Hyundai WIA L4000L Series is the long-bed extension of the L4000 heavy-duty turning platform, available in four configurations: L4000L (15" chuck, 2-axis), L4000LM (15" chuck, live tooling), L4000LC (21" chuck, 2-axis), and L4000LMC (21" chuck, live tooling). With Z-axis travel extended to 2,200 mm and maximum turning lengths exceeding 2,000 mm, these machines handle the long-shaft heavy-duty work that standard-bed L4000 variants cannot accommodate.
The 15-inch chuck L4000L produces 2,450 Nm torque at 2,000 RPM with a 35 kW gear-driven spindle, while the L4000LM uses a 30 kW belt-driven spindle at 1,611 Nm. The 21-inch chuck variants run at 1,500 RPM with 37 kW gear-driven spindles producing up to 3,378 Nm (L4000LC) and 2,457 Nm (L4000LMC). All variants maintain 570 mm (22.4 in) maximum turning diameter across the extended bed length.
Maximum turning lengths range from 2,035 mm (L4000LMC) to 2,138 mm (L4000L), nearly doubling the standard L4000's capacity. The 10-station turret (L4000L/LC) or 12-station turret (L4000LM/LMC) handles 32/60 mm heavy-duty tooling. The LM and LMC variants add 4,000 RPM live milling for cross-drilling, keyways, and milled features on long shafts without secondary setups.
With rapid traverse of 16/20 m/min and box-way construction on all axes, the L4000L Series is priced at approximately $160,000-$240,000. It competes with the Mazak QT-400 MY, Okuma LB4000 EX II, and DN Solutions Puma 5100L in the large-bore long-bed segment. The Fanuc 0i-TF Plus control is standard.
Full Specifications
| Parameter | Value |
|---|---|
| Max Turning Diameter | 570 mm (22.4 in) |
| Max Turning Length | mm |
| Chuck Size | inch |
| Max Spindle Speed | 2,000 RPM (15" models) / 1,500 RPM (21" models) |
| Spindle Motor Power | 35 kW (47 hp) [L4000L] / 30 kW (40 hp) [L4000LM] / 37 kW (50 hp) [L4000LC/LMC] |
| Spindle Torque | N.m |
| Spindle Drive | Gear (L4000L/LC/LMC) / Belt (L4000LM) |
| X Axis Travel | 330 mm (13.0 in) |
| Z Axis Travel | 2,200 mm (86.6 in) |
| Rapid Traverse X | 16 m/min (630 ipm) |
| Rapid Traverse Z | 20 m/min (787 ipm) |
| Turret Stations | 10 (L4000L/LC) / 12 (L4000LM/LMC) |
| Tool Size | mm |
| Live Tool Speed | 4,000 RPM (LM/LMC only) |
| Guideway Type | Box ways (X and Z) |
| CNC Control | Fanuc 0i-TF Plus |
| Description | Unit |
| Max Turning Dia | mm |
| 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
- 2,138 mm maximum turning length handles long shafts, hydraulic cylinders, and extended components in a single setup
- Up to 3,378 Nm torque on the L4000LC for heavy roughing on large-diameter long workpieces
- Dual chuck sizes (15" and 21") provide flexibility for different workpiece ranges on the same platform
- Box-way construction maintains rigidity across the extended 2,200 mm Z-axis travel envelope
- Live milling variants eliminate secondary operations on complex long-shaft components
- Competitive pricing versus comparable Japanese and European long-bed heavy-duty turning centers
Limitations
- Substantial floor space requirement for the extended bed length handling 2+ meter workpieces
- 16/20 m/min rapid traverse increases non-cutting time versus faster compact machines
- 1,500-2,000 RPM spindle speeds limit surface speed on small-diameter finishing passes
- High capital investment ($160K-$240K) requires consistent large-part volume to justify
Best For
Frequently Asked Questions
01
The L4000L extends Z-axis travel from 1,105 mm to 2,200 mm, increasing maximum turning length from 1,043 mm to 2,138 mm. Both share the same chuck sizes, spindle specifications, and box-way construction. The long-bed adds floor space and machine weight but uses identical spindle, turret, and control systems.
02
The base L4000L with 15-inch chuck starts around $160,000-$185,000. The L4000LM with live tooling runs $180,000-$210,000. The L4000LC with 21-inch chuck prices at $190,000-$220,000. The L4000LMC with live tooling and 21-inch chuck reaches $210,000-$240,000.
03
For long shaft work on the L4000L Series, hydraulic steady rests and follow rests are essential accessories. Hyundai WIA offers factory-installed steady rest options, and aftermarket steady rests from SMW Autoblok, Rohm, and other manufacturers are compatible. Steady rest capacity should be verified against your specific workpiece diameter range.
04
The L4000LMC combines 2,200 mm Z-axis travel, 4,000 RPM live milling, and C-axis capability. While it does not have a sub-spindle, the live tooling enables cross-drilling, keyways, flats, and tapping along the full length of the workpiece without secondary setups. For back-end operations, manual rechucking or a tailstock-mounted live center is used.
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