Grove GMK4100L

Debuting at Bauma Munich in 2007, the Grove GMK4100L represented a significant upgrade over its predecessor, the GMK4100, primarily due to the longer 60-meter boom compared to the earlier 52-meter design. The new model retained its four-axle configuration but was redesigned to be more compact and efficient. Measuring only 2.55 meters wide and 0.5 meters shorter overall than the earlier version, it is engineered to comply with the strictest road regulations, including operation within a 12-ton axle load limit when required.

The crane’s seven-section MEGAFORM boom can reach full extension in under nine minutes, and when paired with a 17-meter swingaway jib and an optional 8-meter boom extension, the tip height can be pushed to 83 meters. The TWIN-LOCK™ boom pinning system ensures smooth, safe, and precise operation. The boom operates between -1.5° and +82°, providing excellent versatility across jobsite conditions.

Its superstructure is powered by a Mercedes-Benz OM 904 LA four-cylinder diesel engine producing 129 kW (175 HP), while the carrier is driven by a more powerful Mercedes-Benz OM 460 LA six-cylinder diesel engine with 295 kW (401 HP). Both engines meet EUROMOT, EPA, and CARB emission standards. The crane’s drivetrain is 8x6x8 standard, with an 8x8x8 configuration available as an option. Grove’s proprietary MEGATRAK® independent suspension system with longitudinal and transverse level control ensures superb handling on rough terrain.

The GMK4100L features Grove’s new Crane Control System (CCS), a fully electronic setup that includes a Boom Configurator Mode, allowing the operator to input load, radius, and height for automatic boom setup. The cab is ergonomically designed with a tiltable aluminum frame, panoramic safety glass, and integrated joystick-style controls within the armrests.

The hydraulic system consists of two separate circuits, including a load-sensing axial piston pump and a gear pump for slewing, with a 600-liter tank capacity. Safety and operational features include the Load Moment Indicator (LMI), anti-two block system with audiovisual warnings, ECOS display system, and integrated hoist and slewing brakes.

For added flexibility, the GMK4100L supports a wide range of optional equipment, including bi-fold swingaway jibs with hydraulic or manual offsetting (0°, 20°, 40°), lattice extensions, auxiliary hoists, and additional counterweight packages to reach a total of 26.1 tonnes of ballast.

Overall, the GMK4100L combines excellent on-road travel speed, off-road capability, and superior lifting performance, making it one of the most versatile and efficient cranes in the 100-ton class.