Internal grinding spindle DYFDM-150(035)240/7.5-XWS

motorizedhydrostaticISO

Product overview
Designed for high-speed bore grinding, the DYFDM-150 configuration performs precision internal grinding at an installation diameter of Φ150 mm. Hydrostatic support maintains rotational accuracy within 0.0001 mm during precision operations.

Key dimensions / performance
Installation diameter: Φ150 mm
Maximum speed: 24000 rpm

Technical data

• Model: DYFDM-150(035)240/7.5-XWS
• Height of center (mm): φ150
• Lubricating oil type: ISO VG2
• Oil supply pressure (MPa): 2.5–3.0
• Axial static stiffness (N/μm): ≥50
• Radial static stiffness (N/μm): ≥40
• Front end radial runout (mm): ≤0.0003
• Axial end movement (mm): ≤0.0003
• Rotation precision (mm): ≤0.0001
• Drive type: Built-in motor drive
• Rotation direction: Anticlockwise
• Maximum speed (rpm): 24000
• Max. frequency (Hz): 800
• Motor system: Asynchronous motor
• Rated voltage (V): 380
• Power output S1 100% (kW): 7.5
• Output torque S1 100% (N·m): 3
• Rated current S1 100% (A): 15
• Cooling system: Oil cooling (recommended)
• Application area: High-speed internal grinder
• Weight (kg): 43±2

Features / specifications

• Hydrostatic support for ultra-low rotation error (≤0.0001 mm).
• Designed for high-speed internal grinding up to 24,000 rpm.
• Integrated motor drive reduces mechanical transmission components and simplifies installation.
• Recommended lubricating oil: ISO VG2; oil supply pressure 2.5–3.0 MPa.
• High static stiffness: axial ≥50 N/μm; radial ≥40 N/μm.