Underground Diamond Core Drilling Equipment

Boart Longyear ™ offers an innovative range of underground diamond coring equipment for mineral development and exploration. Providing reliable, high performance deep hole drilling with economical maintenance costs, our LM ™ Modular Diamond Drill System is used extensively all over the world under varying climate conditions.

Major LM series components are designed to be readily interchangeable to adapt to changing on-site requirements, and are capable of both conventional and heavy duty wireline core retrieval.

Roller Latch Underground Head Assembly Drill Rig Product Line

LM™30

The LM30 is the smallest rig in the underground coring drill offering.

LM™30SS

This version of the LM30 Skid drill uses a CAT 346C Skid Steer carrier to power and transport the drill components.

LM™55

The LM55 is a compact drill rig for underground diamond coring.  It is equipped with a 40kN feed frame for drilling short holes.

LM™75

The LM75 is a mid-sized drill rig for underground diamond coring.  It is equipped with a 70kN feed frame for medium hole depth.

LM™90

The LM90 is the largest of the underground rigs. It is equipped with a 130kN feed frame for drilling deep holes.

LM™90A

The A in the LM™90A stands for 'Automated'. The drill system relieves the operator from performing a number of tasks that usually need to be performed when diamond coring.

Spares and Service
Reliable parts and servicing availability on a worldwide basis.