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BAT 350

Rotary drive (BAT series)

The powerful rotary drive delivers the required torque for common drilling applications such as Kelly, continuous flight auger or full displacement drilling. Considerable advantages are the automatic torque regulation as well as four electronically adjustable speed ranges. The rotary drive is powered by the on-board hydraulics of the LB 35 carrier machine.

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imperial

Torque - 347 kNm
347 kNm
Speed - 46 U/min
46 U/min

Exchangeable drive adapters

Exchangeable drive adapters allow for the use of various Kelly bars.

Exchangeable cardan joints

These cardan joints can be exchanged to suit the size of the casing driver.

Automatic gearbox

Four electronically adjustable speed ranges and automatic torque regulation allow for perfect adaption to the prevailing soil conditions. The drilling process is not interrupted through changing speed.

Easy transport and maintenance

Thanks to the short and lightweight design, the rotary drive is extremely efficient as well as user-friendly in terms of transportation and maintenance.

Integrated control system

The rotary drive is completely integrated in the control system of the Liebherr carrier machines. This provides optimum control comfort.

Rotary drive with selective Kelly shock absorber

The latest version of the rotary drive has a newly developed Kelly shock absorber, which allows the damping strength to be adapted depending on the respective weight of the Kelly bar.

Torque	347 kNm
Speed	46 U/min

Rotary drilling tools for Kelly drilling

Wear parts for drilling tools

Automatic casing drive adapter

The automatic casing drive adapter with remote control for locking and unlocking the casing pipe offers significant advantages in terms of safety as no personnel is exposed to the hazardous area. In addition faster production cycles can be achieved.

Casing oscillators

If required, Liebherr piling and rotary drilling rigs can be equipped with a number of casing oscillators which are operated via the machine’s on-board hydraulics. No external power pack is required which leads to significant cost savings.

Wet soil mixing

For wet mixing a self-hardening suspension is introduced into the ground.

Kelly drilling

Kelly drilling belongs to the most common dry rotary drilling methods. Soil and rock material is conveyed to the surface discontinuously with relatively short rotary drilling tools.

Full displacement drilling

Full displacement drilling is a modification of continuous flight auger drilling. The drilling tool used is a smooth pipe with an auger-type starter piece.