Excavator Mounted System & Components

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

TEI 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

TEI Drifter, either TE560 or TE360

Adapter for the Excavator

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 Flow45GPM
Hydraulic Pressure2,500PSI
Hole Size1-5/8 to 5in
Total Length16ft
Drill Travel11.75ft
Pullback7,350lbf
Approx. Weight3,750lbs
Minimum Excavator Size20ton

Compatible Drifters

TE360

TE560

 Specifications

TE360

TE560

Impact Energy90 to 120 ft/lbs190 to 315 ft/lbs
Impact Frequency3,400 to 4,200 BPM3,500 to 2,200 BPM
Supply Pressure2,250 PSI2,500 PSI
Percussion Flow20 GPM23 GPM
Output Power12.4 HP21 HP
Rotation Torque1,800 ft/lbs3,000 ft/lbs
Rotation SpeedUp to 250 RPMUp to 250 RPM
Rotation Flow10 GPM15 GPM
Weight210 lbs544 lbs
Compatible WithR32S, R38N, T40All

Typical Applications

  • Micropiles
  • Soil Nails
  • Rock Bolts
  • Coring