High-Frequency Brushless Diamond Core Drilling Motor


【available from AGP Europe】

The water-cooled permanent magnet synchronous motor provides unprecedented power output efficiency on single phase supply for outstanding performance with large diameters up to 500 mm (20"). The 17-speed integrated controller allows a wide speed range with full torque available at every speed.

  • Water-cooled PMSM motor has the highest output efficiency of any single phase coring motor on themarket.
  • Conveniently runs directly on 230 V single phase supply. The power converter is integrated into the unit,and the automatic PRCD is built-in as well, so you can just plug it in and start drilling!
  • Oil bath gearbox with mechanical clutch. Due to the special motor characteristics which allow electronic speed selection with no loss of torque, only one mechanical ratio is needed.
  • Anti-seize ring to prevents core bits from getting stuck on the spindle.
  • Water feed inlet can be mounted on either side of the motor for operator convenience.
  • Easy to use operator interface.
  • The Ferro-Fix rebar assist button makes it much easier to handle embedded steel while drilling.
  • LED display gives bit diameter, as well as mode display, service indicator, hours counter, and error codes.
  • The separate LED load indicator lamp gives reliable information on load and thermal conditions.
  • The electronic speed selection with 17 diameter settings are easy to select, and can be adjusted on the fly. Can be easily changed between metric and inch display units.
  • Bit threading function makes threading on large heavy bits much easier. Simply align the spindle with the bit, press the button once, and it will automatically rotate at low speed to thread the bit on. Press the button once again to stop.
3700 W /16 A
Max. Capacity:
Ø 500 mm (20")
Wet Drilling (reinforced concrete)
Dry Capacity:
  • Model
  • DM20
  • Power Input
  • 3700 W /16 A
  • Power Output Efficiency
  • 90%
  • Voltage, Frequency
  • 1~ 220-240 V, 50-60 Hz
  • Rated Load Speeds
  • 220 - 540 /min
  • Electronic Speed Settings
  • 17 steps
  • Drilling Capacity
  • Ø 500 mm (20")
  • Soft Start / Overload Protection
  • With
  • Gear Oil Type
  • 80W-90
  • Gear Oil Capacity
  • 400 ml
  • Spindle Thread
  • 1-¼" UNC
  • Insulation Class
  • Class 1 with PRCD
  • Ingress Protection Class
  • IP55
  • Dimensions (LxWxH)
  • 669 x 221 x 182 mm
  • Weight
  • 16.7 kg (36.7 lb)
  • Exploded View & Parts List
  • Download
Exploded View & Part List
No items found.

Standard Accessories

  • Water Supply Kit

Optional Accessories

  • 40 mm Spacer Kit