LTM 1500-8.1 Liebherr crane - load chart, specs & dimensions (2005 - 2022)

Comfortable driver's cabin of outstanding functionality

Modern and comfortable driver's cab of high functionality and convincing designHeat and sound absorbing internal panellingErgonomically arranged operating and display elements for safe and convenient handling at permanent operationDigital display and keyboard units interconnected with the functional blocks by data bus techniqueAir-cushioned driver's and co-driver's seats, headrests, driver's seat with pneumatic lumber supportHeight and inclination adjustable steering wheelHeated and electrically adjustable rear mirrorsSide panes with electrical liftersEngine independent auxiliary warm water heaterSafety belts for driver and co-driverGreen-tinted windows for heat absorptionAutomatic windscreen washers/wipers with intermittent controlDelayed disconnection of interior lightingVarious racks and boxes for crane documentation, etc.Optional equipment Air conditioning, seat heating, 3rd seat with headrest, sleeper berth, cassette radio

Comfortable and spacious crane cabin

Galvanized crane cab with tinted panes all-round, front knockout window with large parallel windscreen wiper, large skylight of bullet-proof glass with large parallel windscreen wiper, roller blind on skylight, space-saving sliding door, cabin inclinable backwardsGreen tinted front and side panes for heat absorptionWash/windscreen wiper for front window and skylight2 working projectors, 70 watt each, at the front and rear of the cabinEngine independent additional warm water heaterOptional equipment Air conditioning, seat heating, roller blind on rear pane, cassette radioSpring-mounted and hydraulically cushioned crane operator's seat with pneumatic lumber support and headrestConvenient armrest-integrated controls, vertically and horizontally adjustable master switch consoles and armrests, ergonomically inclined operating consolesHeat and sound absorbing internal panellingDisplay of all essential operating functions on the LICCON monitor

Robust drive concept

4 axles permanently driven (1st, 2nd, 4th and 5th axle). 6 axles are steered; independent steering of axles 7 and 8. Automated gear system ZF-TC-TRONIC with converter and retarder, 12 forward and 2 reversed speeds, automated control. Transfer case. Driving axles with longitudinal differential locks.

Outstanding carrier technology for road and off-road application

Weight optimized and low maintenance axles of high-tensile steel; perfect track keeping and lateral stability due to special control linkage arrangement. Steering knuckles mounted on steel bearings, thus bearing failures are practically ruled out. The perfected and robust axles are manufactured in large series and are part of the trouble-free components of a mobile crane. The cardan shafts in the axles are maintenance-free and are safely located within the axle body. 70° diagonal toothing enables easy and fast fitting by just a few screws.

The variable telescoping boom system

96 t total weight incl. 50 m telescopic boom and permanent outrigger system. Boom change device with hoisting and displacement mechanism on low loader. Quick Connection for the dismantling of the telescopic boom (10 t axle load). Quick Connection for the dismantling of the superstructure (6 t axle load).

Setting on outriggers – quick, convenient and safe

Permanent supporting pads. Supporting rams with 500 mm travel. Automatic levelling of the crane during the supporting procedure. 2 x 9° lateral inclination, even with locked suspension. Inclinometer (electronic display of inclination) with two indicators on the carrier and one display on the LICCON monitor. Indicators of supporting forces on the carrier and on the LICCON monitor. Control of sliding outriggers with display of the state of extension on the LICCON monitor (optional).

Outstanding boom technology

Focal points of the new boom technology: oviform boom profile, patented internal interlocking system of the telescopes, automatic telescoping system, telescopic boom with electronically controlled telescoping system, boom bearings of low maintenance polyamide slide blocks.

Weight-optimized steel structure

Carrier, superstructure and telescopic boom in light-gauge design, calculated by the F.E.M. method, weight-optimized and of particular torsional rigidity. Tensile property of material with high safety factors through the application of STE 960 (960 N/mm2) for all supporting members.

Crane and road-preserving Niveaumatik suspension

Maintenance-free suspension rams, free of lateral forces and protected by synthetic tubes. Level adjustment (suspension set to “travel mode”) can be performed automatically by push-button control from any position. Stable cornering ability due to cross mounting of the hydraulic suspension. Axle locking system (locking of the suspension for travelling with equipment) integrated into the suspension ram and controllable from the driver’s cabin.

Load handling – precise and safe

7-section, 84 m long telescopic boom for 84 m height under hook and 74 m radiusConsiderable gain in lifting height and reach due to the exceptionally long boom4-section, 50 m long telescopic boom for 50 m height under hook and 48 m radiusOviform boom profile of particular torsional rigidity and for the highest capacitiesPatented internal interlocking system of the telescopes - of functional reliability and maintenance-freeHigh functionality of the boom system due to the automatic telescopic system "Telematik"Optimal utilization of the telescopic boom through numerous telescoping variants

Multi-variable boom configuration system

Telescopic boom T, 16.1 m - 84 m, also with additional guying system TY and with boom extension TVFixed lattice jib TF, 14 m - 63 m, mountable at 0° or 20°, also with additional guying system TYFLuffing lattice jib TN, 21 m - 91 m, mountable to the 16.1 m - 78.8 m long telescopic boom at an inclination of 83°, 75° and 67°, also with additional guying system TYNIntermediate sections of the TF and TN configuration are identical and can be slid into one another for transportationJib A-frames with T-adapter and N-base section form a complete mounting/transport unit and can be mounted with 4 pins onlyEasy-to-rig stay rods which remain on the intermediate sections during transportationStandard auxiliary winch for easy reeving of the hoist and luffing ropesRigging of the jib is practicable in suspended condition on restricted sitesWinch 2 for 2-hook operation or for operation with mast noseWinch 3 for luffing of the jib

LICCON-assisted telescoping system

Telescoping by single-stage hydraulic ram with hydraulic driving tenonsTelescoping procedure controllable on the LICCON monitor, convenient and simple guide mode on the monitor, precise approach of the interlocking positionsTelescopable loads are displayed on the LICCON operating image"Automatic operation", fully automatic telescoping to the desired boom length, rapid-cycle system with high working speedsExtremely light telescoping system, thus increases in lifting capacity with long booms and at large radiiAutomatic cushioning of telescopes in end positions during telescoping and retracting for preserving the structural members

Counterweight frame – compact and quickly mountable

Modular set-up of the counterweight frame, consisting of base frame and two winch packages, compact transport unit. Winch 2 and winch 3 with luffing block are pinned and thus quickly interchangeable if required, e.g., for the application of a second LTM 1500-8.1. The winches are connected to the hydraulic system of the crane by rapid action couplings. Auxiliary winch with control panel for reeving of the hoist rope and luffing rope.

Electric/electronic crane control with integrated safe load indicator

Control of the winches, slewing gear as well as the luffing and telescoping motions by the LICCON system (SPS control). Four working motions can be performed independent of one another. Hoisting/lowering, slewing and luffing speeds are preselectable by 5 steps. Luffing speed controlled automatically dependent on the boom length. Very short response rate when initiating the crane motions. Hoist gear and slewing gear are operating within a "closed oil circuit". This enables a particularly precise hoisting, lowering or slewing of the load. Moreover, the potential energy generated during the lowering of a load is not converted into heat but can be re-employed for a 2nd motion. This offers the particular advantage in saving fuel and in a reduced thermal exposure of the oil than in an open circuit. No overheating of the oil.

Sequence

Extend telescopes 2 or 3 to 100%. Retract telescoping ram and interlock it with telescopes 1 or 2.

Extension and Dismantling

Extend telescopes 1 or 2 until the interlocking pin is accessible. Put the boom head slightly on the low loader and dismantle the upper slide blocks of telescope 1 or 2. Lower the telescopic boom slightly in order to dismantle the lower slide pads. Remove the slide pads from telescope 1 or 2. Release the interlock between telescope 1 and 2 or 2 and 3 respectively by means of the emergency release screw. Extend the supporting frame of the low loader and raise telescopic sections 2 – 6 or 3 – 6 respectively.

Retracting the Boom

Retract telescope 1 or 2 and lower the boom onto the low loader. Lock the boom to the supporting frame by the lateral pressure plates. Lock the boom head in the supporting device by the ratchet.