Hyundai WIA HD3100LY/LYA
Key Specifications
Max Spindle
Rapid Traverse
Spindle Power
Max Turn Length
max turning diameter
chuck size
Overview
The Hyundai WIA HD3100LY/LYA is a heavy-duty, long-bed CNC turning center with Y-axis milling capability, available in two chuck configurations: the HD3100LY with 10-inch chuck and the HD3100LYA with 12-inch chuck. Built on box way construction with a 30-degree slanted one-piece bed, the HD3100LY/LYA extends the HD3100 platform with long-bed Z-axis travel (1,350 mm) and Y-axis capability for off-center milling operations on large-diameter shaft components.
The HD3100LY features a 26/18.5 kW (35/25 hp) belt-driven spindle running at 3,500 RPM with 734/522 N.m of torque through a 10-inch chuck. The HD3100LYA steps up to a 12-inch chuck at 2,800 RPM with 1,051/672 N.m of torque, providing massive clamping force for the largest workpieces. Maximum turning diameter is 420 mm (16.5 in) across both models, with 1,280 mm (50.4 in) turning length for long shaft and tubular components.
Both models feature X/Y/Z travels of 265/120/1,350 mm with rapid traverse of 24/10/30 m/min. The BMT65 wedge-type Y-axis turret with 12 stations and 5,000 RPM live tooling provides the rigidity needed for productive milling on the heavy-duty box way platform. The 25/50 mm tool size accommodates the heavy-duty toolholders and boring bars needed for large-diameter work.
New HD3100LY/LYA machines price between $160,000 and $230,000. The series competes with the DN Solutions Puma GT 3100LM, Mazak Quick Turn 350MY, and Okuma LB4000 EX MY in the heavy-duty long-bed Y-axis segment. For shops machining long shaft components in tough materials that require both heavy turning and off-center milling, the HD3100LY/LYA delivers the combination of box way rigidity, long-bed capacity, and Y-axis versatility.
Full Specifications
| Parameter | Value |
|---|---|
| Max Turning Diameter | 420 mm (16.5 in) |
| Max Turning Length | mm |
| Chuck Size | inch |
| Max Spindle Speed | 3,500 RPM (HD3100LY) / 2,800 RPM (HD3100LYA) |
| Spindle Motor Power | 26/18.5 kW (35/25 hp) |
| Spindle Torque | N.m |
| Spindle Drive | Belt |
| X Axis Travel | 265 mm (10.4 in) |
| Y Axis Travel | 120 mm (4.7 in) |
| Z Axis Travel | 1,350 mm (53.1 in) |
| Rapid Traverse Rate | 24/10/30 m/min X/Y/Z |
| Turret Stations | 12 |
| Turret Type | BMT65 wedge-type Y-axis |
| Tool Size | mm |
| Live Tool Speed | 5,000 RPM |
| Guideway Type | Box ways |
| Bed Angle | 30 degrees |
| 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
- 1,350 mm Z-axis travel and 1,280 mm turning length handle long shaft components in a single setup
- Box way construction provides maximum vibration damping for heavy-duty cutting on castings, forgings, and tough materials
- HD3100LYA with 12-inch chuck delivers 1,051 N.m torque for the most aggressive roughing on large-diameter stock
- BMT65 wedge-type turret provides superior milling rigidity compared to standard VDI turrets
- 120 mm Y-axis travel enables off-center milling, keyways, cross-drilling, and flats on long shaft components
- Two chuck sizes (10/12 inch) allow right-sizing to specific workpiece diameter and torque requirements
Limitations
- Box ways require periodic adjustment and re-scraping for maintaining accuracy over time
- 24 m/min X-axis rapid traverse is slower than linear guide machines, adding non-cutting time
- 2,800 RPM spindle speed on the LYA model limits surface speed on smaller-diameter finishing operations
- Large machine footprint with long bed requires significant floor space allocation
Best For
Frequently Asked Questions
01
The HD3100LY has a 10-inch chuck at 3,500 RPM with 734 N.m torque. The HD3100LYA has a 12-inch chuck at 2,800 RPM with 1,051 N.m torque. Both share the same bed, travels, and milling capability. Choose the LY for higher speed on medium-diameter work; the LYA for maximum clamping force and torque on the largest workpieces.
02
The HD3100LY adds Y-axis travel (120 mm) and a BMT65 wedge-type turret with 5,000 RPM live tooling. The standard HD3100L is a 2-axis turning-only long-bed machine. The Y-axis enables off-center milling, keyway cutting, and cross-drilling that would otherwise require a secondary milling setup.
03
The HD3100LY with 10-inch chuck starts around $160,000-$190,000. The HD3100LYA with 12-inch chuck reaches $195,000-$230,000. Options including high-pressure coolant, steady rests, follow rests, and chip conveyor add to the base price.
04
Hyundai WIA offers hydraulic steady rests and follow rests for supporting long workpieces during turning. Aftermarket options from SMW Autoblok, Rohm, and others also fit. For shaft work approaching the 1,280 mm turning length, at least one steady rest is typically required to prevent deflection and chatter.
