Technical data Piling and drilling rig LRB 255 Ñ
Concept and caracteristics 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 F High engine output with automatic engine speed control F Controlled entirely from cab F Sturdy and solid rig design F Wide longitudinal and lateral supporting system on the basic machine through triangles F High push an
Transport dimensions and weights Ñ Ñ Transport complete Dimensions and weights* 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).
Dimensions Basic machine LRB 255 Ñ Ñ Ñ Ñ Ñ Ñ Ñ ÑÑÑ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ ÑÑ Ñ Ñ Ñ Technical Data Leader length Capacity: hammer including cap plus pile Max. hammer weight Max. pile weight Max. pull, leader on ground Max.
Technical description Engine Swing 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.
Drilling equipment Technical data Ñ Double rotary drilling Continuous flight auger drilling Drilling drive I – torque gear 2nd gear 185,000 lbf ft 92,000 lbf ft Drilling drive – torque 1st gear 2nd gear 184,400 lbf ft 92,200 lbf ft Drilling drive I – speed 1st gear 2nd gear 13 rpm 26 rpm Drilling drive – speed 1st gear 2nd gear 20 rpm 40 rpm Drilling drive II – torque 1st gear 2nd gear 154,000 lbf ft 77,000 lbf ft Drilling drive II – speed 1st gear 2nd gear 10 rpm 20 rpm Max.
Equipment for kelly drilling Technical data Kelly drilling Drilling drive I – torque 1st gear 2nd gear 184,400 lbf ft 92,200 lbf ft Drilling drive I – speed 1st gear 2nd gear 20 rpm 40 rpm Max. drilling diameter with adapter 9.8 ft Max. drilling diameter without casing oscillator 7.2 ft Max. drilling diameter with casing oscillator 5.9 ft Line pull kelly winch Line speed kelly winch 45,000 lbs 0 –295 ft/min Ñ Transport dimensions Kelly type 3/24 3/28 3/32 3/36 4/48 4/65 L ft 32.8 36.1 41.
Pile driving equipment Technical data Ñ Ñ Vibrator variable moment 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 8 LRB 255 Hydraulic hammer 0 – 3500 lbf in 2000 rpm 197 45 34 13,668 9,480 0.75 tons tons tons lbs lbs inch Max. rated energy free fall Max. rated energy with acceleration 48,000 lbf ft 18,500 lbf ft Blow rate max. energy: 80 blows/min Max.
Push - pull equipment Technical data Ñ Push - pull system Max. pressing force per cylinder 449,700 lbs 2 Number of cylinders Total weight 26,500 lbs Suitable for all kind of steel sheet piles, single or in pairs, for pressing of walls or boxes.
Foundation crane equipment Hook - slurry wall grab - casing oscillator Ask for load charts 10 LRB 255
Litronic control system Set value, digital display Y direction Freefall HW 1 and HW 2 Vibrator Vibrator frequency display Swing speed (1–2–3) Analog inclination display Drive limit Vibrator pump pressure Cylinder for support arm brace Additional pump 2 pressure Blocking carriage locked Engine speed Adjustment carriage locked Acoustic alarm deactivation Set value,digital display X direction Inclination digital display Cable length measurement Clamping head pressure Drilling operation preselect
PDE - Process data recording (Additional equipment) This module constantly calculates and stores the current working processes. Measurements PDE - diagram Measurements are constantly calculated during the working process. No special measuring process is required. External systems can also be connected to the system. Display of measurement data 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.
