Direct Drive CNC Grinding Machine Module

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DGH-80 / DGH-80B4

DD Rotating Spindle for grinding machine (A-axis)

DGH-80 / DGH-80B4 DD Rotating Spindle for grinding machine (A-axis)

  • Information
  • Specification
  • Dimension
  • DD Motor Drive, No backlash.
  • High Speed, 90-degree division time less than 1 second.
  • Can be used with any controller and specialized for processing indexing manufacture.
  • Min. indexing degree: 0.001 degree.
  • The installation of encoder is dependent upon its accuracy requirement.
Specifications DGH-80 DGH-80B4
Use Method Vertical use
Cooling Circuit Reserve no / yes
Clamp Method -
Faceplate Dimension -
Spindle through hole diameter φ30 mm
Faceplate Centre Hole Diameter φ70x11 mm BT-40
Centre Height 150 mm
Solenoid & Detection Need to be connected
Max. Speed 500 rpm
continuous r.p.m 100 rpm
Max. Rated current (1sec) 6A / 10A
Cont. Rated current 2A / 4A
Max. Rated torque (1sec) 84Nm / 140Nm
Cont. Rated torque 28Nm / 56Nm
Min. Increment Unit 0.001°
Clamp Force -
Net Weight (Without motor)  50 kgs
  • 1. The cooling machine is provided by the customer.
    2. When rotary spindle match with rotary table, the connection plate should be prepared by customer.

Encoder Specification：

Specifications code Label Communication protocol Resolution Indexing Accuracy Repeatability
NNK3 NIKON NIKON Serial abs interface 22bit ±20 (Arc. Sec.) Within 15 Arc.Sec.
HE12 Heidenhain EnDAT 2.2/22 25bit ±25 (Arc. Sec.) Within 10 Arc.Sec.
HEA2 Heidenhain EnDAT 2.2/22 27bit ±20 (Arc. Sec.) Within 10 Arc.Sec.
RBGD Ranishaw  Biss-C  26bit ±20 (Arc. Sec.) Within 10 Arc.Sec.

DGH-80B4-Through hole

DGH-80-Through hole

Unit: mm

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