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The longest boom on 5 axles
With the longest boom and high capacities combined with a small footprint and excellent maneuverability the new GMK5250XL-1 pushes boundaries. The Grove single engine design with latest emission levels reduce the operating costs due to 30% lower diesel consumption compared to previous generation models.
The GMK5250XL-1 puts power and performance to work for you with high capacities on a five-axle, all-terrain crane and 78,5 m (257.5 ft) main boom.
VIAB turbo retarder clutch option: The Grove five-axle is the first all-terrain crane to utilize a VIAB turbo clutch module, which is used by a number of heavy-duty trucks. It enables wear-free starting and braking, avoids overheating and burning, and reduces fuel consumption to a minimum, adding substantial fuel savings of approximately 30% compared with its predecessor, the GMK5275. VIAB is a turbo coupling and integrated retarder all in one, which means less weight and less space.
Convenient transportation logistics: Logistic benefits due to interchangeable counterweight slabs and self-rigging auxiliary hoist. Once on the jobsite, the crane can be moved while carrying its full counterweight of 80 t (176,300 lb), and its ability to travel in this configuration saves valuable time on the job that would otherwise be taken up with installing and removing counterweight sections. In addition, some of the counterweight slabs are interchangeable with those of the GMK5180-1/5200-1, GMK5250L/L-1 and GMK6300L/L-1. The self-rigging auxiliary hoist eliminates the need for an assist crane during on-site rigging.
Superior strength and reach: Boosting overall reach is a 17,8 m (58.4 ft) hydraulic swingaway jib, which can be extended with either an 8 m (26 ft) boom extension, 8 m (26 ft) jib insert or a combination of both, for a total possible jib length of 33.8 m (111 ft). For optimum usage, the full jib can also be operated while the crane is working with its 72 m (236 ft) boom length extended. Another beneficial feature of the jib is its ability to offer increased offset of up to 50° compared to a typical 40° offset on other Grove cranes in its class; plus there is an optional integrated heavy-duty jib available.
CraneSTAR: CraneSTAR is an exclusive and innovative crane asset management system that helps improve your profitability and reduce costs by remotely monitoring critical crane data. Visit www.cranestar.com for more information.
|Chassis||Special five-axle chassis, all-welded torsion-resistant box type construction in high-strength steel|
|Cab||Aluminium, full vision, tiltable (approx. 20°), safety glass, adjustable operator’s seat with suspension, engine-independent heater. Armrest-integrated crane controls. Ergonomically arranged instrumentation and crane operating controls.|
|Max Tip Height||390.4’|
|Engine Make||Mercedes Benz|
|Engine Type||Diesel, turbocharged|
|Torque||Max. torque: 2460 Nm (1814 ft lb) at 1300 rpm.|
|Fuel Tank Capacity||79 Gallons + 92.5 Gallons|
|Control System||Full electronic control of all crane movements using electrical control levers with automatic reset to zero. Integrated with the RCL and engine management system by CANbus. Crane Control System (CCS) with system with graphic display|
|Drive||10 x 6 x 10|
|Axles||5 axle lines; axle lines 2, 4 and 5 steered and driven; axle lines 1 and 3 steered.|
|Transmission||Mercedes-Benz G 280, 16 gears forward and 2 reverse. 2 stage transfer case with longitudinal locks and water retarder|
|Driver's Cab||Composite-designed aluminum and fibre-reinforced plastic, 2-person design, safety glass, driver seat with pneumatic suspension, engine-dependent hot water heater. Complete instrumentation and driving controls. Air conditioned. 12 V plug. Two rotating beacons. Fire extinguisher. Additional engineindependent diesel cab heater, also serves as engine preheater incl. 24-hr timer.|
|Hydraulic Capacity||235 Gallons|
|Hydraulic System||2 separate circuits, 1 axial piston variable displacement pump with electronic power limiting control and axial piston variable displacement pump for slewing. Thermostatically controlled oil cooler|
|Brakes||Service brake: pneumatic dual circuit disc brakes acting on all wheels, air dryer.
Permanent brake: exhaust brake and constant throttle brake.
Parking brake: pneumatically operated spring-loaded brake acting on axle lines 2, 3, 4 and 5
|Suspension||MEGATRAK®. All wheels with independent hydropneumatic suspension and hydraulic lockout. Longitudinal and transverse level control with automatic on-highway leveling system. Range +170 mm/-130 mm (6.69 in/-5.12 in). Active suspension control on outrigger control units|
|Tires||10 tires, size 385/95 R25 (14.00 R25)|
|Steering||Dual-circuit, hydraulic power-assisted steering with emergency steering pump. Axle lines 1, 2, 3 and 5 steer on highway (steer by wire). Separate electronic hydraulic (steer by wire) steering of axle lines 4 and 5 for all-wheel steering and crabbing.|
|Outriggers||4 double hydraulically telescoping beams with vertical cylinders and outrigger pads. Independent horizontal and vertical movement control on each side of the carrier and from the operator’s cab. Electronic level indicator with automatic leveling system|
|Counterweight||80 t (176,300 lb), consisting of various sections (50 t [110,200 lb] within 3,00 m [9.84 ft] vehicle width). Hydraulic removal system.|
|Slew||3 slewing gears with axial piston motors, planetary gears, automatic brake|
|Max Boom Length||257.5’|
|Max Tip Height-Boom||265’|
|Hoist||Axial piston motor with planetary gear and brake. Drum rotation indicator. Hoist camera with light.|
|Boom Elevation||1 cylinder with safety valve, boom angle from -1.5° to +82°|
|Max Capacity||300 US tons|
|Electrical System||Three-phase alternator 28 V/100A, 2 batteries 12 V/170 Ah|
|Lighting||Lighting system and signals 24 V|