Fast-erecting crane 81 K Max. lifting capacity: 13,230 lbs Max. radius: 147’-6” Lifting capacity with max.
The 81 K fast-erecting crane. Comfortable cab with best possible view of the site Torsionally resistant Fully automatic play-free tower connection Integrated intermediate hook heights Quick-Connection CC-Ballast for play-free connection of the tower to the slewing platform Saves time thanks to boltable ballast slabs New switch cabinet Programmable logic control system, graphic display, remote diagnosis, and much more besides.
25% more jib end lifting capacity 4 different jib lenghts SPEED 2 LIFT Pure two-line operation for maximum handling capacity MICROMOVE Millimetric precision with fine positioning Contents Working fast and safe – for sure! Page 4 Our drive is your success. Page 10 Arrive efficiently. Page 16 Simply well set-up. Page 20 Assured long life – maintenance and more. Page 24 Technical Data. Page 28 Uses in summary.
lift speed 2 and ax.
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Working fast and safe – for sure! To date – Either fast or strong! lb kg New – Fast and strong. m/min ft/min Rereeving – no longer required The 81 K operates exclusively with two-line operation. Maximum performance at full speed – always! With hoists at maximum lifting capacity and empty hook runs. Hoist speed always matches the hanging load. By the way – half of all load cycles are empty runs. We have increased the speed by 15%. Strong matter Currently up to 25% more lifting capacity.
Loads precisely positioned With MICROMOVE, at the push of a button on the control lever, lowering speed is reduced to micro levels. Even the heaviest loads can be precisely suspended and positioned without using the hoist gear brakes. Accurate against the wind Wind influences the movement of the jib! With the wind load control, the jib position is regulated automatically. Counter measures are not necessary. Large-scale loads (i.e. form panels) can be moved and suspended precisely even in wind.
Flexible is efficient. The success on your site 57‘-1“ 85‘-3“ standard hook hight up to 132‘-5“ The operational area of the 81 K encompasses apartment block construction to industrial projects. Great flexibility with 11 different crane heights, the 30° raised jib angle and the 45°-obstruction avoidance angle equips the 81 K for every building site. Operations under power lines or in halls are possible through the telescopic tower.
Range with lifting capacity Adjustable jib in 4 lengths to meet individual requirements – between 101 ft and 147 ft. You profit from customised lifting curves. 147‘-1“ / 3,090 lbs 137‘-8“ / 3,640 lbs 121‘-4“ / 4,740 lbs 101‘-7“ / 6,390 lbs Obstructions or high reaches With the 30° raised jib position and the 45° jib obstruction avoidance position you can match the crane to every operation – and reach hook heights of up to 180 ft.
Our drive to your success.
Unrivalled drives. Strong and sensitive The strong and precise hoist gear is central requirement for increased handling capacity and safe working. It is specially manufactured and assembled in-house for this construction crane. For the first time ever in a fast-erecting crane in its class, the hoist gear can lift and lower all loads absolutely steplessly. The wide rpm enables 2 rope operation at full speed.
Like the big ones Due the stepless speeds of all to FC drives the driving performance corresponds to the top slewer and guarantees maximum handling capacity. Slewing just as you want Choose between absolutely sensitive slewing with low rpm and high torque and high handling capacity with high rpm and low torque. The ratio is freely adjustable.
Exceptionally equipped. New design for efficient operation In addition to the technical innovations the 81K was completely redesigned. Optimum arrangement of controls in the new cabin enables efficient and exhaustion free work. The optimised field of vision maximises the view of building site. Tinted glass reduces heat and protects against glare. 14 Large tool compartment New radio remote control and extra space for radio control with 220 v socket for recharger. with feedback.
Clear information With the electronic monitoring system (EMS) the crane driver has all the important parameters in one view. The display gives extensive information on loads, driving modes and many other operational functions. Safe guying The jib is mounted with rods. Above all, increased safety and low maintenance are aimed for in assembly. Play-free tower connection After the tower is extended, it is tensed at 3 defined points with the automatic tower locking device.
Arrive efficiently.
Arrive efficiently. Sleak dimensions Despite the unique standard hook height of the 81 K is compact and flexible to transport. Moved as complete, ready assembly unit. Fast into operation. 13‘-0“ 52‘-0“ “ 8‘-5 Maximum speed 50 18 At up to 50 mp/h you get your crane to its destination.
You have the choice The modular high-speed and slow-speed axle system or semitrailer offers the best transport possibility for every operational area. Existing axles can also be used. Increased slope angle With the foldable A frame, the 81 K reaches an angle of 15° – that means: approx. 4.5 ft ground clearance. 15° Good to manoeuvre With its steering angle of 180°, the steering axle guarantees best manoeuvrability.
34‘-8“ - 82‘-0“ oney Save m lics! t hydrau – withou 20
Simply well set-up.
Simply well set-up. Get ready for work Proceeds through thought out installation kinematics with rope. Assembly is also possible at extremely low temperatures. The narrow air assembly requires little installation space and and can be carried out with obstructions of up to 82 ft. 82‘-0“ Choose the right erecting curve depending on your operation Screw jacks Thanks to the trapeze thread, the erected crane can be levelled and readjusted with little effort.
The better ballasting The interplay of hoist and assembly winches enables fast and comfortable mounting of the counterweight. With the assembly winch, the tower moves up to 5 metres when unloading the counterweight. Ballast plates are quickly mounted with the hoist winch. CC-Ballast Bolted ballast plates reduce the time for mounting of counterweights by up to 50%. Only 8 hoists are required. Save time and money! Fast climbing Up to 6 tower sections can be inserted comfortably and without ground contact.
Assured long life – maintenance and more.
Assured long life – maintenance and more. All information at a glance: always and everywhere LiDAT is a data transmission and positioning system for Liebherr machines and the machines of other manufacturers. Based on stateof- the-art data transmission technology, LiDAT provides information on the location and operation of your machines, enabling their efficient management, optimal operation scheduling and remote supervision. Worldwide service network Liebherr is represented worldwide.
Original spare parts Our spare parts are optimally tailored to every Liebherr crane. The quality and functionality is of the highest standard across the range. For a long life and high operational readiness of your machines. Smooth operation With the central lubricating system the slewing ring is automatically lubricated. Care is never forgotten. Liebherr construction cranes.
Tower Crane 81K Guindaste de torre / Башенный поворотный кран 203’-4” 196’-5” Technical data.
203’-4” 196’-5” 123’ 185’-0” 116’-1” 171’-6” 104’-7” 30° 91’-2” 45° 6’-6” 6’-2” 9’-8” 52’-8” 52’-0” 13’-0” max. 149’-3” min. 68’-9” 147’-6” 81K 11’-5” 9’-0” 127’-6” 119’-7” 4 111’-9” 3 104’-0” 2 96’-1” 1 88’-3” 0 80’-4” 3 75’-8” 2 67’-9” 52’-0” 81K 60’-0” 0 52’-2” Radius and capacity Weight 8’-5” 6’-2” 7’-1” – 9’-1” lbs 4’-1” 0’-8” 16’-2” 28’-2” 52’-0” 81K 14’-8”x14’-8” Radius and capacity lbs ca.
Radius and capacity Ausladung und Tragfähigkeit / Portée et charge / Sbraccio e portata Alcances y cargas / Alcance e capacidade de carga / Вылет и грузоподъемность Technical data.
Uses in summary. SPEED Pure two-line operation MICROMOVE Always maximum performance at full speed. Millimetre precise positioning at the touch of a button. 25% more lifting capacity Wind load control In comparison to series precursors. The control reacts automatically to the counter torque on the jib. CC-Ballast Load swing damping Save assembly time through bolted ballast plates and heavy ballast. Automatic compensation of jib movements for static load.
Don’t hang on… Go for it! Printed in Germany DWS LBC 675-06.09-1enUS. This information is supplied without liability. Subject to technical modifications. Liebherr Construction Equipment Co. 4100 Chestnut Avenue, Newport News, VA 23607 Phone: (757) 245-5251, E-mail: info.lce@liebherr.com www.liebherr.
