3-axis CNC milling center ULW-500

verticalfor glassfor ceramics

Product Overview

• Equipped with a self-developed Intelligent Ultrasonic Machining System to address machining of hard-to-cut materials
• Optional Supercritical Carbon Dioxide (ScCO2) cryogenic through-spindle cooling and MQL cooling systems for clean machining
• High-speed ultrasonic electric spindle (18,000–50,000 rpm)
• Two types of screw guide protection optional to meet machining requirements for hard-brittle and metal materials
• Stable high-precision machining with positioning accuracy of 5μm and repeatability of 3μm
• Double-layer workbench design using cast iron and aluminum for rust resistance and table rigidity
• Expandable tool magazine

Product Highlights
Gantry frame structure with high stability and lightweight moving components, ensuring improved machine accuracy and dynamic performance.
Thermally symmetrical structure designed using finite element analysis (FEM) to minimize thermal deformation while maintaining rigidity for long-term precision.
Cast iron construction chosen for its vibration-damping properties and excellent dynamic cutting performance, providing stability and broad applicability.
Continuous optimization of bed rigidity through FEM to reach an optimal structural design.

Key Functional Advantages

• Self-developed Intelligent Ultrasonic Machining System for hard-to-cut materials
• High-speed ultrasonic electric spindle (18,000–50,000 rpm)
• Stable high-precision machining: positioning accuracy 5μm, repeatability 3μm
• Optional ScCO2 cryogenic through-spindle cooling and MQL cooling systems for cleaner machining processes
• Ultrasonic machining benefits (tool tip vibration 15–70 kHz): reduces microcracking; lowers cutting forces; increases machining efficiency and tool life; minimizes burrs; improves surface finish

Application Cases
Suitable for high-precision, high-efficiency machining of hard-brittle materials (ceramics, sapphire, glass, silicon carbide, etc.), carbon-fiber composites, superalloys (e.g., titanium alloys) and other difficult-to-cut materials. Also suitable for small parts machining and micro-hole drilling.

Technical Parameters
Item | ULW-500A | B | C | Unit
X/Y/Z-Axis Travel | 500*400*300 | | | mm
Worktable Dimension | 500*400 | | | mm
Max. Load of Worktable | 200 | | | kg
Ultrasonic Spindle | Standard | | | /
Spindle Diameter | ⌀100 | ⌀120 | | mm
Max. Spindle Speed (Short-Duration) | 40,000 | 30,000 | | rpm
Max. Spindle Speed (Long-Duration) | 32,000 | 24,000 | | rpm
Rated Motor Power | 6 | 7.5 | | kW
X/Y/Z-Axis Rapid Speed | 15/15/15 | | | m/min
X/Y/Z-Axis Max. Feed Speed | 10/10/10 | | | m/min
X/Y/Z-Axis Positioning Accuracy | 0.005 | | | mm
X/Y/Z-Axis Repeatability | 0.003 | | | mm
Tool Magazine Type | Umbrella Type | | | /
Tool Holding Capacity | 14 | 12 | | No. of Tools
Total Weight (incl. Accessories) | 3,500 | | | kg
Machine Size (LxWxH) | 1,650x1,880x2,405 | | | mm
CNC Controller | SIEMENS 828D-280 | | | /
Protection | Three-Layer Protection | | | /

Characteristics / Technical specifications

• Model: ULW-500
• X/Y/Z-Axis Travel: 500 x 400 x 300 mm
• Worktable Dimension: 500 x 400 mm
• Max. Load of Worktable: 200 kg
• Spindle Diameter: ⌀100 / ⌀120 mm
• Max. Spindle Speed (Short-Duration): 40,000 / 30,000 rpm
• Max. Spindle Speed (Long-Duration): 32,000 / 24,000 rpm
• Rated Motor Power: 6 / 7.5 kW
• X/Y/Z-Axis Rapid Speed: 15 m/min
• X/Y/Z-Axis Max. Feed Speed: 10 m/min
• Positioning Accuracy: 0.005 mm
• Repeatability: 0.003 mm
• Tool Magazine: Umbrella Type, capacity 14 / 12 tools
• Total Weight (incl. Accessories): 3,500 kg
• Machine Size (LxWxH): 1,650 x 1,880 x 2,405 mm
• CNC Controller: SIEMENS 828D-280
• Protection: Three-Layer Protection