Internal grinding spindle DGZM-08040/4.0 DWS

motorizedwater-cooled

Overview
The DGZM-08040/4.0-DWS is a compact internal grinding spindle designed for precision grinding of small bores where installation diameter and moving mass are limited. Body diameter: 80 mm; weight approx. 7 kg. Rated power 4.0 kW (S1), up to 6 kW (S6-20%), maximum speed 40,000 rpm. Water cooling is recommended and ceramic ball bearings ensure spindle stability for high-speed precision operations. Tool interface: straight hole and screw thread Φ15-M14-X1.5.

Quick specs
Diameter: Φ80 mm
Maximum speed: 40,000 rpm
Rated power (S1): 4.0 kW — S6-20%: 6 kW
Rated torque (S1): 1.29 N·m — S6-40%: 1.91 N·m
Weight: approx. 7 ± 0.5 kg

Technical data
Model: DGZM-08040/4.0 DWS
Maximum frequency: 1,334 Hz
Rated speed: 1,000 rpm
Rated frequency: 100 Hz
Rated voltage: 380 V
Rated current: 8.2 A
Motor type: Asynchronous motor
Bearing type: Ceramic ball bearing
Cooling method: Water cooling (recommended); flow 2–3 L/min at 0.25 MPa
Motor temperature sensor: KTY
Vibration velocity: 0.8 mm/s
Tool interface: Straight hole and screw thread Φ15-M14-X1.5

Features / Technical specifications

• Model: DGZM-08040/4.0 DWS
• Body diameter: Φ80 mm — compact design for constrained installations
• Maximum speed: 40,000 rpm (suitable for small-bore precision grinding)
• Continuous power (S1): 4.0 kW; Intermittent (S6-20%): 6 kW
• Rated torque: ~1.29 N·m (S1); Torque (S6-40%): 1.91 N·m
• Motor: Asynchronous
• Bearings: Ceramic ball bearings for high-speed stability
• Cooling: Water cooling recommended — 2–3 L/min at 0.25 MPa
• Electrical: 380 V, 8.2 A (rated)
• Sensor: KTY motor temperature sensor
• Vibration velocity: 0.8 mm/s
• Weight: approx. 7 ± 0.5 kg
• Tool interface: Straight hole and screw thread Φ15-M14-X1.5