TEI TD75 ELECTRIC / HYDRAULIC LIMITED ACCESS DRILL

TEI TD-75 Electric Micro Drill Rig for Limited-Access Micropile and Rock Drilling

A compact, fully electric micro drill rig engineered for low-headroom, confined-space micropile, hollow bar, and rock drilling applications.

TEI TD75 Specs and Job Types

  • Made in the USA
  • TEI TD‑75 Electric Micro Drill Rig: Compact electric over‑hydraulic limited‑access drill rig for indoor, tunnel, and low‑emission sites where conventional diesel rigs are restricted.
  • Power and size: Approximately 75 HP (56 kW) electric motor on 3‑phase 480 V, operating weight around 6,900 lbs (≈3,100 kg), with retractable rubber tracks that narrow to roughly 35–36 in to pass through standard doorways.
  • Mast and feed system: Feed length about 105 in (≈2.7 m) with roughly 72 in (≈1.8 m) of drill travel and around 12,000 lbs of pullback for micropiles, hollow bar, and cased piles in confined spaces.
  • Drilling heads: Configurable with TEI rotary heads and drifters such as the RDS550, delivering up to about 10,000 ft‑lbs of rotary torque depending on head selection for rock, soil, and hollow bar drilling.
  • Clamp capacity: Double clamp and clamp‑and‑breaker system with capacity up to approximately 10 in, providing high breakout torque and secure handling of rods and casing for micropiles, anchors, and tiebacks
  • Radio Remote Control: A wireless remote lets the operator run the TD‑75 from a handheld radio controller away from the rig, rather than from fixed onboard controls, including starting and stopping rotation, adjusting feed and pullback, tramming the tracks, swinging and raising the mast, and opening or closing the clamps.

Typical TD-75 Jobs

  • Inside-building and low-headroom micropiles for foundation repair and underpinning.
  • Hollow bar micropiles, soil nails, and earth retention in tight-access sites.
  • Cased micropiles and duplex drilling in congested urban or interior locations.
  • Geothermal, tunnel, and confined-space rock/soil coring where emissions are restricted.

TEI TD‑75 overview

The TEI TD‑75 is a compact, electric over‑hydraulic micro drill rig built for limited‑access micropiles, anchors, soil nails, and other deep foundation work in confined or low‑headroom environments. Its narrow tracked undercarriage, low‑emission electric power, and powerful clamp and rotary system let crews drill inside buildings, tunnels, and tight urban sites where conventional crawler rigs cannot fit or operate safely.

Why rent the TEI TD‑75 from NPP

National Piling Products focuses on deep foundation solutions, offering rental drill rigs, grout plants, materials, load testing, and field consulting centered on micropile and anchor projects. When the TEI TD‑75 shows up from NPP, it arrives configured for real‑world limited‑access work and backed by a team of drillers and engineers who understand hollow bar, cased micropiles, and interior foundation repair.

Couple the TEI TD‑75 with Intric grout plants

NPP distributes Intric Grouting Solutions and offers D‑series grout plants like the D9 and D12 for sale and rent, so contractors can pair the TEI TD‑75 with high‑shear, high‑pressure grout systems on the same project. Using one supplier for both the drill and grout plant helps streamline submittals, logistics, and onsite support, turning drilling and grouting into a coordinated workflow.

Top‑notch mechanic shop and support

NPP’s operation is supported by a mechanic team experienced with specialty deep foundation equipment, including TEI drill rigs and attachments, Intric grout plants, and related hydraulic systems. This group maintains the rental fleet, assists with setup, and troubleshoots issues in the field so the TEI TD‑75 stays productive from mobilization through final testing.

Get in touch

Visit the National Piling Products YouTube channel for walk‑throughs, how‑to content, and field support videos tailored to micropile and anchor crews. For rentals, support, or application advice on the TEI TD‑75, call 1‑855‑801‑7453 to speak with the NPP team.