Technical data Piling and drilling rig LRB 255
Concept and characteristics Leader top for auxiliary rope Tool with quick connection Leader Leader support arm Vertical travel device Leader rotation device Undercarriage • 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 • Completely self–rigging (no auxiliary machines required) • Large range of working
Transport dimensions and weights 22085 1245 3950 400 3200 900 3490 8470 5890 7725 Transport with leader Dimensions and weights includes the basic machine (ready for operation) with leader, without working tools (such as rotary, Kelly bar etc.) and without counterweight. Leader length 21.2 m 24.2 m 27.2 m 30.2 m Weight complete without counterweight* 68.3 t 69.4 t 70.6 t 71.
Dimensions Basic machine LRB 255 1:6 2.8° 2.8° 21200 (24000) [27200] {30200} 1:3 800 4000 5700 4230 900 4700 0 20 R4 90° 90° Technical data Leader length Capacity hammer including cap plus pile Max. hammer weight Max. pile weight Max. pull, leader on ground Max.
Technical data Engine Control Power rating according to ISO 3046, 670 kW (898 hp) at 1900 rpm Engine type MAN D 2842 LE Fuel tank 795 l capacity with continuous level indicator and reserve warning Engine complies with NRMM exhaust certification EPA/CARB Tier 2. Hydraulic system 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).
High frequency vibrator Model 40 VML with hydraulic sheet pile feeder Double clamp and hydraulic sheet pile feeder Effective length – max. 28 m Display for vibrating Technical data Static moment Max. speed Max. centrifugal force Max. amplitude Total weight without clamp Dynamic weight with clamp Length Width Height (without clamp) Min.
Sheet pile press Model 4125 Effective length – max. 28 m Display for sheet pile press Technical data Push force Pull force Stroke of cylinders Distance between cylinders Working pressure Weight 4x 1250 4x 1000 400 600-670 max. 300 approx.
High frequency ring vibrator Model 32 VMR Ring vibrator with platform and concreting system Effective length – 40 m Display for vibrating Technical data Static moment Max. speed Max. centrifugal force Max. pull force Max. pull down Amplitude Casing diameter Total weight Max.
Hydraulic hammer Model H 110 Effective length – max. 27 m Display for impact driving Technical data Hammer model H 110/9 Ram weight Max. rated energy Blow rate Hammer weight incl. ram Hydraulic pressure Hydraulic flow 9000 kg 106 kNm 36-100 blows/min 12500 kg 250 bar 215 l/min H 110/7* 7000 kg 83 kNm 40-100 blows/min 10300 kg 230 bar 215 l/min *) The 9000 kg ram can be replaced by a 7000 kg ram.
Double rotary drilling Model DBA 300 Hydraulic casing guide Display for double rotary drilling Technical data Performance data Drilling drive I – torque 300 kNm Drilling drive I – speed 26 rpm Drilling drive II – torque 150 kNm Drilling drive II – speed 31 rpm *) Other drilling diameters and drilling depths available on request 10 LRB 255 Max. drilling diameter* 900 mm Max. drilling depth* 18.5 m Max.
Kelly drilling Model BA 250 A Shock absorber for Kelly bar 1900 X Display for Kelly drilling Kelly bars Technical data Drilling drive - torque Drilling drive - speed Drilling drive - torque Drilling drive - speed 1 gear 1st gear 2nd gear 2nd gear st 250 25 125 50 kNm rpm kNm rpm Performance data Max. drilling diameter* Max. drilling diameter* *) Other drilling diameters available on request.
Continuous flight auger drilling Model BA 250 Auger with hydraulic auger cleaner Effective length – max. 28 m Display for continuous flight auger drilling Technical data Drilling drive - torque Drilling drive - speed Drilling drive - torque Drilling drive - speed Performance data 1st gear 1st gear 2nd gear 2nd gear 250 25 125 50 kNm rpm kNm rpm Drilling depth without auger cleaner* 23.0 m Drilling depth with auger cleaner* 21.5 m Max. pull force (crowd winch and Kelly winch) 850 kN Max.
Process data recording system - PDE® (additional equipment) The Liebherr process data recording system PDE® constantly records the relevant process data during the working process. 59% pile number 10% 12A/23 Ø60cm 3.5 m 3.78 m 4.0 m 4.5 m 5.0 m 5.
Crane equipment See technical datasheet HS 845 HD.
Notice LRB 255 15
LRB 255 – 890057014 – 03/2010 Subject to change without notice. Liebherr-Werk Nenzing GmbH P.O. Box 10, A-6710 Nenzing/Austria Tel.: +43 50809 41-473 Fax: +43 50809 41-499 crawler.crane@liebherr.com www.liebherr.
