Mobile tower crane

Spierings SK2400-AT7

The Spierings SK2400-AT7 is an 18 tonne, seven axle mobile tower crane with a 42m jib, supplied with an operator for crane hire or as part of a contract lift.

Maximum capacity: 18 tonnes
Jib length: 42m
Load at jib tip: 5 tonnes at 42m7.95m x 7.63m outrigger base
Maximum hook height: 56m
Axle lines: 7

Download the Spierings SK2400-AT7 spec sheet

Spierings SK2400-AT7 specification sheet
Load charts, working range diagrams, dimensions and axle loads. PDF, 11 pages, 3.6MB.

Download the spec sheet

Specification

Item	Specification
Manufacturer	Spierings
Model	SK2400-AT7
Type	Mobile tower crane
Maximum capacity	18 tonnes at up to 13.5m radius (243tm); 18 tonnes at up to 14.6m (263tm) in reduced speed mode
Jib length	42m maximum radius; 36.6m with jib luffed 30 degrees
Load at jib tip	5 tonnes at 42m on the 7.95m x 7.63m outrigger base; 3.4 tonnes on the 7.95m x 5.72m base (jib horizontal). Reduced speed mode: 5.5 tonnes and 3.7 tonnes respectively
Maximum hook height	56m with jib luffed 30 degrees; hook height 25.7m or 35.5m with jib horizontal
Jib positions	Horizontal, or luffed to 30 degrees
Tower	Height under the jib 27.9m or 37.7m
Counterweight	23,000kg crane counterweight
Weight and axle loads	84 tonnes overall weight
Outriggers	Support bases 7.95m x 7.63m and 7.95m x 5.72m; maximum outrigger force 600kN (615kN in reduced speed mode); outrigger pads 750 x 600mm; support plates 3000 x 1340mm
Axle lines	7, all steered; axles 1, 3, 4 and 7 driven; hydro-pneumatic suspension on all axles, cylinder stroke 247mm
Tyres and width	445/75 R22.5
Engine	Carrier: DAF MX 375 S1 (12.9 litre) Euro IV diesel, 375kW at 1,900rpm, 2,350Nm at 1,450rpm
Crane drive	John Deere 4045HF475 diesel, 129kW at 2,200rpm, 700Nm at 1,400rpm
Transmission	ZF 12TC2740 automatic with torque converter and retarder; Steyr VG2701/400 transfer box with road and off-road gears; maximum speed 83km/h (limited), minimum 1.6km/h
Control and safety	All motions with hydraulic proportional controls; jib luffing controlled from crane cab or by remote control; operation allowed up to wind force 8 Bf (17m/sec), or 7 Bf (14m/sec) in reduced speed mode; crane to be folded in at wind force 10 Bf (24m/sec) or when not in use for a longer period; operating temperature -15 to +40 degrees C
Ownership	Supplied. Our owned cranes are the electric pick and carry machines

Specifications are taken from the manufacturer published specification sheet for this model and are given as a guide only. Machines vary by build, options and configuration, and figures can change without notice. Nothing on this page forms part of a contract or a lift plan: the crane, its configuration and its load chart are confirmed when we quote and plan your lift.