PCB routing spindle DQF-250B.S

water-cooledhigh-speed

Overview
This DQF-250B.S spindle with a Φ61.95 mm housing is engineered for PCB drilling machines that require this installation diameter. Its dual-winding design delivers a low-speed range (120,000 rpm) and a high-speed range (250,000 rpm) to support precision micro-drilling and high-throughput operations.

Dimensions
Diameter: Φ61.95 mm

Technical Data
Spindle model: DQF-250B.S
Maximum speed (rpm): Low winding 120000; High winding 250000
Maximum voltage (V): 220
Rated power (kW): Low winding 0.98; High winding 1.125
Rated torque (N·m): Low winding 0.16; High winding 0.09
Maximum frequency (Hz): Low winding 2000; High winding 4167
Rated current (A): Low winding 4.48; High winding 3.3
Chuck torque: ≥165 N·cm
Vibration (mm/s): ≤0.8
Cooling form and medium: Internal cooling, water; coolant flow ≥2 L/min (water pressure 0.2 MPa)
Cylinder working pressure (MPa): 0.56–0.60
Bearing working pressure (MPa): 0.6–0.65
Static runout (μm): ≤2.0
Dynamic runout (μm): ≤6.0
Air system flow (L/min): 40–48
Weight (kg): 3.4

Features / Technical specifications

• Model: DQF-250B.S
• Housing diameter: Φ61.95 mm
• Dual-winding design: low 120,000 rpm / high 250,000 rpm
• Maximum voltage: 220 V
• Rated power: 0.98 kW (low), 1.125 kW (high)
• Rated torque: 0.16 N·m (low), 0.09 N·m (high)
• Maximum frequency: 2000 Hz (low), 4167 Hz (high)
• Rated current: 4.48 A (low), 3.3 A (high)
• Chuck torque: ≥165 N·cm
• Vibration value: ≤0.8 mm/s
• Cooling: internal water cooling; coolant flow ≥2 L/min (0.2 MPa)
• Cylinder working pressure: 0.56–0.60 MPa
• Bearing working pressure: 0.6–0.65 MPa
• Static runout: ≤2.0 μm
• Dynamic runout: ≤6.0 μm
• Air system flow: 40–48 L/min
• Weight: 3.4 kg