All Terrain | GMK7450 | Mobile Cranes, Southern Africa. New and Second Hand Cranes

All Terrain | GMK7450

Summary

The Grove flagship, GMK7450 offers a 450t maximum capacity on a seven-axle carrier with a 60m Twin-Lock boom. The optional Mega-Wing-Lift attachment increases capacity throughout the working range. The fully automatic ALLISON transmission, combined with MEGATRAK independent suspension system, ensures optimal performance both on and off-road.

Features

- Exclusive MEGATRAK™ suspension
- Exclusive MEGAFORM™ boom design
- TWIN-LOCK™ boom pinning system
- Allison Automatic Transmission
- Air Conditioning standard in both cabs
- Removable rear outrigger box
- Optional tag axle
- Optional aluminum wheels
- Optional 14X8X14 Drive\Steer


Quick Reference Guide
Capacity	Main Boom Length	Boom Extension	Max Height
450 t	60 m	12 - 73 m	130 m

Superstructure
Boom	16,0 m to 60,0 m five section TWIN-LOCK™ boom. Maximum tip height 63,0 m.
Boom elevation	2 cylinder with safety valve, boom angle from -1,2° to +82°.
Load moment and independent anti-two block system	Graphic display load moment and independent anti-two block system with audio-visual warning and control lever lock-out. These systems provide electronic display of boom angle, length, radius, tip height, relative load moment, maximum permissible load, load indication and warning of impending two-block condition with lock-out hoist function.
Cab	Aluminium, tiltable (approx. 20°), full vision, safety glass, adjustable operator's seat with hydraulic suspension, engine independent diesel cab heater incl. 24h timer and air conditioning. Armrest-integrated crane controls. Ergonomically arranged instrumentation and crane operating controls.Cab stowed over rear for road travel.
Slewing	3 slewing gears with axial piston motors, planetary gear, automatic brake with foot operated release switch for free slew.
Counterweight	120 t, consisting of 20 t base section and 10 t sections. Hydraulic removal system.
Engine	Mercedes-Benz OM906LA, diesel, 6 cylinders, water cooled, turbocharged, 205 kW (279 HP) at 1800 rpm. (80/1269 EWG - fan rigid). Max. torque: 1100 Nm at 1200 rpm. Fuel tank capacity: 300 l. Engine emission: EUROMOT / EPA / CARB (non road).
Hydraulic system	5 separate circuits, 3 axial piston variable displacement pumps with electronic power limiting control,1 axial piston variable displacement pump for slewing and 1 fixed displacement pump for auxiliary gears. Thermostatically controlled oil cooler. Tank capacity: 1570 l.
Control system	ECOS electronic control of all crane movements using electrical control levers with automatic reset to zero. Integrated with the LMI and engine management system by CAN-BUS.
Hoist	Axial piston variable displacement motor with planetary gear and brake. Drum rotation indicator. Hoist camera.
Electrical system	Three-phase alternator 28 V/100 A, 2 batteries 12 V/170 Ah.* Optional equipment > Mega-Wing-Lift. > Additional 40 t counterweight to be used with Mega-Wing-Lift (total counterweight 160t). > Heavy duty jib, 4/7,5 m. > Lattice extension, 12 - 70 m, in sections of 6 m. 12 - 42 m offsets 3°, 46 - 70 m offsets 3°, 25°. > Luffing jib, 25 - 79 m, in sections of 6 m. > Auxiliary hoist. > Boom removal kit.
Carrier
Chassis	Special 7-axle chassis, all-welded torsion-resistant box type construction in high strength steel.
Outriggers	4 double hydraulically telescoping beams with vertical cylinders and outrigger pads. Independent horizontal and vertical movement control on each side of the carrier. Removable rear outrigger box. Electronic level indicator with automatic levelling system.
Engine	Mercedes-Benz OM502LA, diesel, 8 cylinders, water cooled, turbocharged, 420 kW (571 HP) at 1800 rpm (80/1269 EWG - fan loose). Max. torque: 2700 Nm at 1300 rpm. Fuel tank capacity: 500 l. Engine emission: EUROMOT / EPA / CARB (non road).
Transmission
Drive/Steer	4 x 6 x 14.
Axle lines	7 axle lines. 1, 4 and 5 are driven steering axle lines, the 2nd, 3rd, 6th and 7th are steering axle lines.
Suspension	MEGATRAK. All wheels with independent hydropneumatic suspension and hydraulic lockout. Longitudinal and transverse level control with automatic on-highway levelling system. Range +170 mm/-130 mm.
Tyres	14 tyres, 14.00 R25.
Steering	Dual circuit, hydraulic power assisted steering with emergency steering pump. Axle lines 1, 2, 3, 6 and 7 steer on highway. Separate steering of the 4th, 5th, 6th and 7th axle line for all wheel steering and crabbing.
Brakes	Service brake: pneumatic dual circuit, acting on all wheels, air dryer. Permanent brake: exhaust brake with constant throttle brake and hydraulic transmission retar-der. Parking brake: pneumatically operated spring-loaded brake acting on axle lines 2, 4, 5, 6 and 7.
Cab	Aluminium, 2-man-design, safety glass, driver and passenger seat with hydraulic suspension, engine-dependent hot water heater and air conditioning. Complete instrumentation and driving controls.
Electrical system	Three-phase alternator 28 V/100A, 2 batteries 12 V/170 Ah. Lighting system and signals 24 V. Optional equipment > 14 x 8 x 14. > 14 tyres, 16.00 R25 (vehicle width 3,00 m). > 14 tyres, 20.5 R25 (vehicle width 3,10 m). > Folding bunk bed in carrier cab. > Engine-independent hot water heater, with engine pre-heater. > Secondary transmission oil cooler. > Engine shutdown valves (for both engines).