Mobile construction crane
The compact 3-axle crane is the answer to market requirements for a small, compact and manoeuvrable mobile construction crane that is extremely fast and
Two support widths of 5.75 m and 7.0 m, plus the option of half-sided support, enable operation in the smallest of spaces. Safeguarded via an automatic set-up status monitoring system.
Operates within compact support dimensions thanks to a minimal slewing radius of 3.3 m (without additional ballast). And only 3.5 m with additional ballast.
Two additional ballast options increase lifting capacity by up to 40 %.
The MK 73-3.1 only requires one engine for travel and operation thanks to its environmentally friendly ECOmode feature. This saves service time and costs.
The optional, more powerful trolley increases lifting capacity at 15° and 45° by up to 50 %. This makes a maximum lifting capacity of 2800 kg possible in these jib positions.
Compact external dimensions combined with 5 steering modes make a minimal turning radius of 9.67 m possible.
ECOmode minimises both fuel consumption and noise emissions when operating the crane superstructure. The crane operator sets the required working speed using the control lever. The crane control system calculates the perfect engine speed for the diesel engine.
ECOdrive makes the mobile crane significantly more comfortable and quieter by reducing the engine speed. Faster gearshifting delivers greater dynamic and traction offroad. On the road, the torque from the Liebherr diesel engine is used efficiently to minimise fuel consumption.
Take one engine out to increase lifting capacity. Or more accurately – the superstructure is powered by the undercarriage engine. Gear shafts are routed from the distributor gear in the substructure via two mitre gears to the pump distributor gear in the superstructure. That enables us to remove one engine – and we use this to increase the crane’s lifting capacity.
Hillstart-Aid makes starting on gradients easier. Move off safely and easily without rolling backwards.
Up to 90 % lower CO2 emissions in action.
Zero CO2 emissions when crane operations are powered by the electric motor.
| Max radius | 38.5 m |
|---|---|
| Max driving speed | 80 km/h |
| Engine power | 243 kW |
| Lifting capacity at max. radius | 2,000 kg |
|---|---|
| Max. lifting capacity | 6,000 kg |
| Max. hook height | 51.00 m |
| Luffed jib position | 0 / 15 / 30 / 45 ° |
| Slewing radius | 3.50 m |
| Operating weight | 36.00 t |
| Additional ballast | 2.9 t |