CFA Drilling rig Lechner LH100

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 LH80/100MP drilling rig is equipped with two removable 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 between 0-35 rpm.
The maximum torque of the rotator is 100 kNm.
Feeding of the rotator is carried out by means of a winch, rotator stroke is 7500 mm
Feeding force: 100 kN
Retrieval force: 100 kN

Main hydraulic winch

Linear force @ 300 atm - 85 kN
Linear speed /adjustable - 65 m/min.
Automatic rope feeding - yes
Cable diameter - 20 mm

Auxiliary hydraulic winch

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

Mast

If necessary, depending on the task, different types of extensions and heads are 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 4 degrees, forward/backward tilting by - 4/87 degrees.