Excavator Mounted System & Components

The HEM (Hydraulic Excavator Mount) is the most popular drilling attachment.The stable excavator base with long boom combines to form an excellent drilling platform. The HEM receives hydraulic power from the excavator’s Auxiliary Hydraulic circuit.

Our drifters have an internal dampening system that only allows for full power when the drill string is engaged. A built-in swivel accepts air, water or grout for all types of drilling including the installation of the popular hollow bars.

HEM Feed System

excavator mounted

Drifter, either 560 or 360


Adapter for the Excavator

cat 313 314

Available Excavator Adapters

  • CAT 313 and 314
  • CAT 320 and 321
  • Doosan DX180, DX190, DX210, DX225, DX 235, and DX255

HEM Feed

  • TEI patented feed and hose-roller system
  • Radio/Cable controls with manual override
  • HEM mount with 360-degree positioning
  • Hydraulic Foot Clamp
  • Hydraulic Breaker Clamp

HEM 550 Feed with TE550 Drifter

Hydraulic Flow 45 GPM
Hydraulic Pressure 2,500 PSI
Hole Size 1-5/8 to 5 in
Total Length 16 ft
Drill Travel 11.75 ft
Pullback 7,350 lbf
Approx. Weight 3,750 lbs
Minimum Excavator Size 20 ton

Compatible Drifters








Impact Energy 90 to 120 ft/lbs 190 to 315 ft/lbs
Impact Frequency 3,400 to 4,200 BPM 3,500 to 2,200 BPM
Supply Pressure 2,250 PSI 2,500 PSI
Percussion Flow 20 GPM 23 GPM
Output Power 12.4 HP 21 HP
Rotation Torque 1,800 ft/lbs 3,000 ft/lbs
Rotation Speed Up to 250 RPM Up to 250 RPM
Rotation Flow 10 GPM 15 GPM
Weight 210 lbs 544 lbs
Compatible With R32, R38, T40 All

Typical Applications

  • Micropiles
  • Soil Nails
  • Rock Bolts
  • Coring