Sheave head Rope crowd system (RDS) Auxiliary winch Tool with quick connection Lateral inclination device Leader Leader support arm Longitudinal inclination device Vertical travel device Support arm brace Leader swing device Radius adjustment device Basic machine High engine output with automatic engine speed control Controlled entirely from cab Sturdy and solid rig design Wide longitudinal and lateral supporting system on the basic machine through triangles High push and pull forces High torque Fast and easy assembly of leader extensions without auxiliary devices Completely self rigging (no auxiliary machines required) Large range of working tools (all piling and drilling works can be performed) Leader swing range +/ 90º Stepless inclination 1:6 forward 1:3 backward depending on type of equipment Increase of effective leader length (3 m) via vertical travel device Adjustment of lateral inclination independent from longitudinal inclination Automatic vertical alignment High alignment forces Simultaneous control of several movements via Load sensing multi circuit hydraulics Quick change of equipment possible through quick connection Equipment design according to latest European regulations and norms High manufacturing quality through quality control by PDE system 2 LRB 255
The transport weight includes the basic machine (ready for operation), 27,800 lbs counterweight and leader without working tools (such as drilling drive and torque support). Leader length 60 ft 70 ft 80 ft 100 ft Weight complete in lbs 171,500 173,900 176,400 179,000 The transport weight includes the leader without working tools (such as drilling drive and torque support). Leader length 60 ft 70 ft 80 ft 100 ft Weight of leader in lbs 58,900 61,300 63,700 66,400 The transport weight includes the basic machine (ready for operation). Counterweight 27,800 lbs Basic machine in lbs 87,900 Counterweight in lbs 27,800 * Indicated dimensions and weigths do not include options! LRB 255 3
Leader length 70 / 80 / 90 / 100 ft Capacity: hammer including cap plus pile 66,200 lbs Max. hammer weight 33,100 lbs Max. pile weight 33,100 lbs Max. pull, leader on ground 88,200 lbs Max. torque 221,000 lbf ft Working radius machine Center of rotation front edge leader 13.1 18.7 ft Stepless rig inclination adjustment Lateral inclination +/ 1:20 Forward inclination 1:6 Backward inclination 1:3 Vertical leader adjustment above ground level (depending on leader length) 9.8 ft Vertical leader adjustment below ground level (depending on leader length) 16.4 ft Leader swing range +/ 90 Total weight with 31.5 inch 3 web shoes 172,000 lbs Ground bearing pressure 14.5 PSI Total weight with 35.4 inch 3 web shoes 173,000 lbs Ground bearing pressure 12.9 PSI The operating weight includes the basic machine LRB 155 (leader length 60 ft, without working tools) and17,000 lbs counterweight. 4 LRB 255
Water cooled, V 8 cylinder Liebherr diesel engine, model D 9408 TI E, turbocharged with intercooler, power rating according to ISO 9249, 536 HP at 1900 rpm. Option: Water cooled, V 12 cylinder Daimler Chrysler diesel engine, model LOM 444 LA, turbocharged with intercooler, power rating according to ISO 3046 IFN, 811 HP at 1900 rpm. The automatic limiting load control adapts perfectly the power of the main users to the present engine speed. Fuel tank: 214 gal capacity with continuous level indicator and reserve warning. Consists of single row ballbearing, fixed axial piston hydraulic motor, spring loaded and hydraulically released multi disc holding brake, planetary gearbox and pinion. Free swing with hydraulic moment control reduces wear to a minimum, because rotation moment is sustained through the hydraulic system by the diesel engine. Swing speed from 0 4.5 rpm is continuously variable. The main pumps are operated by a distributor gearbox. Axial piston displacement pumps work in open circuits supplying oil only when needed (flow control on demand). The hydraulic pressure peaks are absorbed by the integrated automatic pressure compensation, which relieves the pump and saves fuel. Pump for working tools: 2x 79 gal/min and 1x 106 gal/min Separate pump for kinematics: 18 gal/min Separate pump for crowd system: 82 gal/min Hydraulic oil tank: 264 gal Max. working pressure: 4978 PSI No auxiliary power packs are required as application specific hydraulics supply power to all components. The cleaning of the hydraulic oils occurs via an electronically monitored pressure and return filter. Any clogging is shown on the display in the cab. The use of synthetic environmentally friendly oil is also possible. The control system developed and manufactured by Liebherr is designed to withstand extreme temperatures and the many heavy duty construction tasks for which this machine has been designed. Complete machine operating data are displayed on a high resolution monitor screen. To ensure clarity of the information on display, different levels of data are shown in enlarged lettering and symbols. Control and monitoring of the sensors are also handled by this high technology system. Error indications are automatically displayed on the monitor in clear text. The crane is equipped with proportional control for all movements, which can be carried out simultaneously. The Redundant control system allows restricted operation of the machine in the event of a failure on the electronic base control or its sensors. Two joysticks are required for operation. Pedal control can be changed to hand control. Options : PDE : Process data recording GSM modem Propulsion through axial piston motor, hydraulically released spring loaded multi disc brake, maintenance free crawler tracks, hydraulic chain tensioning device. Telescopic undercarriage: 0 0.9 mph 3 web track shoes: (optional 35.4 inch) 31.5 inch Track force: 141,630 lbf Line pull (nominal load): 18,000 lbf Rope diameter: 20 mm Drum diameter: 12.6 inch Max. line speed: 0 197 ft/min The winches are noted for their compact, easily mounted design. Propulsion is via a maintenance free planetary gearbox in oil bath. Load support by the hydraulic system; additional safety factor by a spring loaded, multi disc holding brake. Noise emissions correspond with 2000/14/EC directive on noise emission by equipment used outdoors. Crowd force push/pull: Line pull (nominal load): Rope diameter: Max. line speed: 101,200/101,200 lbf 33,700 lbf 24 mm 0 285 ft/min LRB 255 5
Drilling drive I torque 1 st gear 185,000 lbf ft 2 nd gear 92,000 lbf ft Drilling drive I speed 1 st gear 13 rpm 2 nd gear 26 rpm Drilling drive II torque 1 st gear 154,000 lbf ft 2 nd gear 77,000 lbf ft Drilling drive II speed 1 st gear 10 rpm 2 nd gear 20 rpm Max. drilling diameter 4 ft Drilling drive torque 1 st gear 184,400 lbf ft 2 nd gear 92,200 lbf ft Drilling drive speed 1 st gear 20 rpm 2 nd gear 40 rpm Max. drilling diameter 3.3 ft 6 LRB 255
Drilling drive I torque 1 st gear 184,400 lbf ft 2 nd gear 92,200 lbf ft Drilling drive I speed 1 st gear 20 rpm 2 nd gear 40 rpm Max. drilling diameter with adapter Max. drilling diameter without casing oscillator Max. drilling diameter with casing oscillator Line pull kelly winch Line speed kelly winch 9.8 ft 7.2 ft 5.9 ft 45,000 lbs 0 295 ft/min Transport dimensions Working dimensions Kelly type L Weight L 1 R Drilling depth ft lbs ft ft ft 3/24 32.8 13,250 78.7 36.1 72.2 3/28 36.1 14,550 91.9 32.8 85.3 3/32 41.0 16,100 104.9 27.9 98.4 3/36 44.3 17,600 118.1 24.6 111.5 4/48 45.9 18,750 157.5 22.9 150.9 4/65 57.4 23,150 213.3 11.5 206.7 LRB 255 7
Eccentric moment Max. frequency Max. centrifugal force Max. line pull capacity Max. pull down capacity Total weight, without clamp Vibrating weight, without clamp Max. amplitude, without clamp 0 3500 lbf in 2000 rpm 197 tons 45 tons 34 tons 13,668 lbs 9,480 lbs 0.75 inch Max. rated energy free fall 48,000 lbf ft Max. rated energy with acceleration 18,500 lbf ft Blow rate max. energy: 80 blows/min Max. blow rate: 120 blows/min Max. inclination 1 : 1 Length 17.6 ft Total weight 22,950 lbs Ram weight 10,250 lbs 8 LRB 255
Max. pressing force per cylinder 449,700 lbs Number of cylinders 2 Total weight 26,500 lbs Suitable for all kind of steel sheet piles, single or in pairs, for pressing of walls or boxes. LRB 255 9
Ask for load charts 10 LRB 255
Set value, digital display Y direction Freefall HW 1 and HW 2 Vibrator Vibrator frequency display Swing speed (1 2 3) Drive limit Analog inclination display Vibrator pump pressure Cylinder for support arm brace Additional pump 2 pressure Blocking carriage locked Engine speed Adjustment carriage locked Set value,digital display X direction Acoustic alarm deactivation Inclination digital display Cable length measurement Clamping head pressure Drilling operation preselection Adjustment page symbol Page forward/ back symbol The rig inclination in x and y directions is shown on the cab screen in large letters and in crosshair. A push button automatically adjusts the rig to vertical position, independent of the current inclination. A push button increases or reduces the rig radius, without modifying the adjusted inclination. The length of the unreeled rope is measured on the crowd winch and displayed in large letters on the cab screen. The vibrator control consists of stepless adjustment of the vibrator frequency, automatic clamping head system and stepless adjustment of eccentrics. An interface transmits the data of the control system, e.g. working depth to the connected PDE system. LRB 255 11
(Additional equipment) Measurements are constantly calculated during the working process. No special measuring process is required. External systems can also be connected to the system. Measurement data relevant to the working process is displayed on the monitor in the cab. The operator can then control the process and, if necessary, correct it. The working process and the measurement can be interrupted at any time. The measurements are automatically continued upon resumption of work. External sensors Example of a protocol (in required language): All data is stored on a memory card. This can be read via a PC. Thereby an evaluation and processing of data can also be performed at a later time. For example, for: client certifications conveying daily production data, down time, etc. Soil condition report A protocol can be printed out from the cab printer after each working process. A GSM modem can be connected to the PDE making long distance data transmission possible. LRB 255 102 23 042 02/2005 Subject to change without notice.