UG800 | JTEKT Machinery North America
UG800

UG800

The UG800 Five-Axis Vertical Machining Center from WELE is a universal gantry-type solution engineered for uncompromising precision, strength, and reliability. Built on an advanced overhead gantry structure with twin ballscrew drives and a high-precision trunnion rotary table, the UG800 achieves exceptional rigidity and stability under even the most demanding multi-axis machining conditions. Its design has been fully validated through FEM analysis and strict process controls, ensuring long-term structural integrity and accuracy.

The UG800 incorporates patented backlash elimination and a rotary axis brake system, delivering unmatched stability, torque capacity, and positioning accuracy for complex 5-axis operations. Developed and manufactured entirely in-house with WELE’s proprietary technologies, the UG800 sets a new benchmark in 5-axis machining capability, offering manufacturers a platform built for both today’s challenges and tomorrow’s demands.

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UG800 Inside

High-Speed Spindle Performance

The UG800 is equipped with one of the most advanced spindles in its class, designed to deliver exceptional speed, power, and accuracy for the most demanding 5-axis machining applications. Built with WELE’s proprietary technology and balanced to G4.0 standards (stricter than the industry’s G1.0), this high-performance spindle ensures extended tool life, superior surface finish, and vibration-free cutting.

Key Features:

  • 22,000 RPM Built-In Spindle – Achieves outstanding high-speed cutting capability across a wide range of materials.
  • High Power Output – 45 HP (46 kW) spindle motor provides continuous torque for heavy-duty cuts as well as fine finishing.
  • HSK A63 Taper Interface – Ensures rigidity, precision, and excellent tool change repeatability.
  • Thermal Stability – Integrated spindle cooling system maintains consistent operating temperatures for long-term accuracy.

UG800 Structure

Superior Design & Structure

The WELE UG800 is built on a universal gantry-type structure, engineered for maximum rigidity, accuracy, and long-term stability. Validated through FEM analysis, its overhead gantry design with twin ballscrews and a high-precision trunnion rotary table ensures minimal deflection and superior machining performance under the most demanding cutting conditions. This robust foundation allows the UG800 to consistently deliver high precision across complex, multi-axis applications.

To further enhance performance, the trunnion rotary table is developed in-house using WELE’s patented backlash elimination and rotary axis brake systems, ensuring stable positioning, lasting torque capacity, and precise synchronization. With linear scale feedback on the X, Y, and Z axes, precision hand-scraped surfaces for superior damping, and brake torque capacities up to 5,000 Nm, the UG800 sets a benchmark for 5-axis machining centers—combining durability, accuracy, and innovation in one powerful platform.


UG800 Cutting

Delivering Accuracy and Productivity

The WELE UG800 is engineered to deliver uncompromising performance in high-end multi-axis machining. Its rigid gantry structure and an advanced trunnion rotary table, ensures exceptional stability during heavy cutting operations while maintaining micron-level precision. With FEM-validated design and precision linear roller guides across all axes, the UG800 minimizes vibration and deflection, making it capable of handling both high-speed finishing and ultra-heavy material removal with confidence.

The machine’s superior clamping forces, patented backlash elimination system, and advanced rotary axis brake technology provide the rigidity required for aggressive roughing, while maintaining the accuracy demanded by complex 5-axis geometries. With rapid traverse rates, a 60-tool magazine, and through-table clamping, the UG800 achieves outstanding productivity, ensuring manufacturers can take on the most challenging parts with efficiency and reliability.


Models & Specifications

Table Size: in (mm) 31.5
X-axis Travelin (mm)31.5 (800)
Y-axis Travelin (mm)37.4 (950)
Z-axis Travelin (mm)25.6 (650)
Spindle Speed Max.RPMBuilt-in 14,000 (HDH) / 15,000 (FANUC)
Tool TaperCAT40
Rapid Feedrate X, Y, Zm/min (ipm)48 (1890)
Tool Storage Capacity30 (60 Optional)
Tool Weight Max.lbs (kg)17.6 (8)