Liebherr LB 28 User Manual

Technical data Drilling rig

LB28

Concept and characteristics

Kelly rope

Leader top for Kelly rope

Leader top for auxiliary rope

Tensioning cylinder for

crowd system

Kelly bar

Inclination device

Rotary

Crowd winch

Casing driver

Auxiliary winch

Radius adjustment device

Kelly winch

Casing oscillator

Uppercarriage

Undercarriage

•

High engine output with automatic engine speed

•

Stepless leader inclination 5° forward - 15° backward

control

depending on type of equipment

•

Controlled entirely from cab

•

Automatic vertical alignment

•

Sturdy and solid rig design

•

High alignment forces

•

Solid parallel kinematics on the basic machine

•

Simultaneous control of several movements via

•

High pull and push forces

Load-sensing multi-circuit hydraulics

•

High torque

•

Quick change of rotaries possible through quick

•

Completely self-rigging (no auxiliary machines

connection

•

Equipment design according to latest European

required)

•

Large range of working tools (all common drilling

regulations and standards

•

All components designed to fulfill the requirements

works can be performed)

of a drilling rig

•

High manufacturing quality through quality control by

the PDE-system

2 LB 28

Transport dimensions and weights

		24985	3000
		1260		3600
			900	405
6990	5895	12100	3500

Transport with leader		Dimensions and weights

includes the basic machine (ready for operation) with leader, without		Leader length	22 m
working tools (such as rotary, Kelly bar etc.) and without counter-		Weight complete without counterweight	68.2 t
weight.
	24985		2610
2640		10305
			2460
Transport leader		Dimensions and weights
includes the leader without working tools		Leader length	22 m
(such as rotary, Kelly bar etc.).		Weight complete	24.2 t
		Lower part of the leader	1.5 t
		Upper part of the leader with leader top	4.6 t
8070	3000	Counterweight I
		1550	2465

			3600	3000	660
1260				Counterweight II
	900	405			1565	1760
5895	3500			3000	170	1840

Transport basic machine

Weights

Rotary

ready for operation, without counterweight.

Counterweight I

10.2 t

Transport weight

Transport weight

44.0 t

Counterweight II

5.2 t

BA 280

6.7 t

Weights can vary with the fi nal confi guration of the machine.

LB 28 3

Dimensions

Basic machine LB 28

5°

25965

615

15°

5°

5°

1100

4215 5465

5895

900

4200

4700

R 4265

Technical data

Operating weight

Total height

25.96 m

Total weight with 800 mm 3–web shoes

95.0 t

Total weight with 900 mm 3–web shoes

95.6 t

Max. pull, leader on ground

400 kN

The operating weight includes the basic machine LB 28 (with rotary

Max. torque

286 kNm

Stepless rig inclination adjustment

± 5°

and Kelly bar MD 28/3/30) and 15.3 t counterweight.

Lateral inclination

Forward inclination

5°

Backward inclination

15°

4 LB 28