CFA Drilling rig Lechner LH135

Technical description of the drilling rig

Base superstructure

Located on the turntable. Turntable rotation speed is 4 rpm. Consists of an engine compartment, with power pack and operator's cabin. A mast is attached to the basic setup, by means of a parallelogram/pantograph kinematic system. A counterweight is located on the rear of the base
of the base superstructure, a counterweight is located.

Pivoting mechanism

The drill rig can rotate 360° and is designed to be able to drill in any position. A brake is activated during drilling to prevent accidental movement of the machine during the working phase.

Cab

The operator can control all rig functions with hydraulic joysticks from the cab. The cab is heated and air-conditioned.

Hydraulic System

The rig is equipped with In-Line (Germany) dual-circuit main hydraulic pump, working pressure 32 mPa.

Rotator

The hydraulic rotator of the Lechner LH135 maxpower line drilling rig is equipped with two detachable adjustable hydraulic motors connected to a planetary gearbox. The rotator is equipped with a stroke limit switch.
The rotator is controlled from the operator's cab and the speed can be varied from 0-30 rpm).
The maximum torque of the rotator is 150 kNm, achieved at a speed of 6 rpm at a pressure @ 300 bar( atm).

Main hydraulic winch

Linear force @ 300 atm - 150 kN
Linear speed /adjustable - 70 m/min.
Automatic rope feeding - yes
Cable diameter - 20 mm

Auxiliary hydraulic winch

Linear force - 50 kN
Linear speed - 30 m/min

Mast

Length of the mast base element - 10,000 mm
If necessary, depending on the task, different types of extensions and headers can be installed. The machine shown here has a mast head for Kelly rod drilling.

Kinematic system

The system of moving the mast vertically forward and backward with respect to the axis of the base machine is realized by means of a pantograph (parallelogram). This system allows the mast to be moved vertically, relative to the base machine, for a more convenient positioning of the drilling tool at the drilling point, either on the side of the drilling machine, in front of it, or behind it, without any movement of the chassis. This system also allows multiple holes to be drilled without moving the machine. It allows side tilting of the mast by 5 degrees, forward/backward tilting by - 5/90 degrees.