Hyundai WIA KF5 (High-Speed Type)
Key Specifications
X Travel
Y Travel
Z Travel
Max Spindle
Spindle Taper
Table Size
Overview
The Hyundai WIA KF5 High-Speed Type is the performance-oriented variant of the KF5 platform, configured specifically for high-speed machining of aluminum, light alloys, and non-ferrous materials. Where the Standard Type balances speed and torque for mixed-material work, the High-Speed Type pushes spindle speed to 20,000 RPM with an HSK-A63 interface optimized for the thermal stability and rigidity demands of sustained high-speed cutting.
Axis travels match the Standard Type at 800 x 450 x 510 mm (31.5 x 17.7 x 20.1 in) on a 900 x 450 mm (35.4 x 17.7 in) table rated for 600 kg (1,323 lb). The critical difference is the 20,000 RPM HSK-A63 direct-drive spindle with 22/15 kW (30/20 hp), which delivers the surface speeds needed for efficient aluminum finishing with small-diameter endmills while maintaining adequate torque for productive roughing. The HSK-A63 taper face-and-taper contact provides better rigidity at high speeds than BT40, which is why Hyundai WIA selected it for this high-speed configuration.
Rapid traverse remains at 48 m/min (1,890 ipm) on all axes, and the linear roller guideways deliver the smooth, precise motion required for high-speed contouring. The 24-tool servo-driven arm-type ATC maintains fast tool changes. The FANUC 0i-MF Plus control with high-speed machining functions (AI contour control, nano-interpolation) is standard.
At $120,000-$170,000 new, the KF5 High-Speed Type competes with the Haas VF-2SS, Okuma GENOS M560-V-e, and Fanuc Robodrill alpha-DiB Plus. For shops running 70%+ aluminum with demanding surface finish requirements, the KF5 High-Speed Type delivers a purpose-built solution with HSK-A63 rigidity and 20,000 RPM speed at a competitive price.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 800 mm (31.5 in) |
| Y-Axis Travel | 450 mm (17.7 in) |
| Z-Axis Travel | 510 mm (20.1 in) |
| Table Size | mm |
| Table Load Max | 600 kg (1,323 lb) |
| Max Spindle Speed | 20,000 RPM |
| Spindle Taper | HSK-A63 |
| Spindle Motor Power | kW |
| Spindle Drive | Direct Drive |
| Atc Capacity | 24 tools |
| Atc Type | Servo-driven arm type |
| Rapid Traverse Rate | 48 m/min (1,890 ipm) |
| Guideway Type | Linear roller guideways |
| Positioning Accuracy | ±0.005 mm (±0.0002 in) |
| Repeatability | ±0.003 mm (±0.00012 in) |
| CNC Control | FANUC 0i-MF Plus |
| Machine Weight | 5,800 kg (12,787 lb) |
| Description | Unit |
| Max Load Capacity | kg |
| Spindle Rpm | r/min |
| Spindle Torque | N.m |
| Travel | mm |
| Rapid Feed Rate | m/min |
| No Of Tools | EA |
| Tool Change Time | sec |
| 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
- 20,000 RPM HSK-A63 spindle delivers the surface speeds needed for efficient aluminum finishing and small-diameter endmill work
- HSK-A63 taper provides better rigidity at high speeds than BT40, with face-and-taper contact that tightens under centrifugal force
- 48 m/min rapid traverse on all axes keeps non-cutting time to a minimum on high-speed aluminum programs
- 22 kW spindle power provides enough torque for productive aluminum roughing even at high spindle speeds
- FANUC 0i-MF Plus with AI contour control and nano-interpolation delivers smooth surface finishes at high feed rates
- Compact footprint makes the KF5 High-Speed Type suitable for multi-machine production cells
Limitations
- HSK-A63 tooling costs 40-60% more than BT40, which adds up for shops building a new tool library
- 20,000 RPM spindle is optimized for aluminum — steel torque at low RPM is lower than a 12,000 RPM box-way machine
- 800 mm X-travel limits the machine to small-to-medium parts — larger work requires the KF-50 II or KF5600
- Hyundai WIA dealer network in North America is smaller than Haas, Mazak, and Okuma
Best For
Frequently Asked Questions
01
Choose the High-Speed Type if 70%+ of your work is aluminum or light alloy. The 20,000 RPM HSK-A63 spindle provides higher surface speeds for better finish and productivity with small-diameter tools. The Standard Type 12,000 RPM BT40 spindle is the better choice for mixed steel-and-aluminum work where low-RPM torque matters more.
02
Yes, but it is not optimized for heavy steel roughing. The 22 kW spindle provides adequate power for moderate steel cutting at lower RPM ranges. For shops doing more than 30% steel work, the Standard Type or the larger KF5600 with its higher-torque spindle options would be more appropriate.
03
At 20,000 RPM, BT40 holders experience centrifugal expansion that loosens the taper contact, reducing rigidity and requiring more frequent re-torquing. HSK-A63 hollow-shank design tightens under centrifugal force, maintaining full taper and face contact at high speeds. This provides better tool rigidity, more consistent runout, and safer operation at 20,000+ RPM.
04
With proper tooling (polished carbide or PCD endmills), high-speed cutting strategies, and the FANUC AI contour control, the KF5 High-Speed Type can achieve Ra 0.4 or better on aluminum — suitable for cosmetic and optical-quality surfaces. The HSK-A63 interface low runout is critical to achieving these finish levels consistently.
