Liebherr LTR 1100 - Mayer
Mayer from Burgberg (DE) was using their sharp Liebherr LTR 1100 on a construction site in Memmingen (DE) for the erection of precast concrete elements. It is a 100-tonne crane with telescopic boom installed on a crawler chassis. The crane's year of manufacture is 2008.
The crane's undercarriage is 5.05 meters wide and 6.413 meters long. For the transport over the road can the width be reduced to 3.5 meters.
Attached to the undercarriage is in total 15 tonnes of counterweight by two 7.5 tonne hang-on slabs.
Here was the crane used with 20 tonnes of counterweight, the maximum counterweight is 32 tonnes and is completed by four blocks with each 3 tonnes that are stacked left and right on the wide slabs. The crane can erect the counterweight on the ground by itself and then attach the counterweight to the superstructure by using the two hydraulic cylinders. The counterweight has a tailswing of 4.42 meters. The crane is fitted with a second hoist winch, but that wasn't in use here.
The crane is powered by a Liebherr D934S A6, a 4-cylinder diesel engine with a power of 129 kW (175 hp). The engine powers three hydraulic pumps to operate the crane functions.
The 6-part main boom has a 11.5 meter base length and extends five times to a maximum length of 52 meters. The main boom can be extended by a 2.9 meter assembly jib or a 19 meter long bi-fold swingaway jib, that is mountable under 0, 20 or 40 degrees.
A sharp and very popular crane for the erection of precast concrete elements.