Grove GMK4070L

CRANE CORNER

Strongest load chart, longest boom in 75-ton all-terrain crane class makes new Grove GMK4070L a solid choice

Manitowoc strengthened its four-axle all-terrain crane lineup with the addition of the new 75-ton Grove GMK4070L. The crane offers the strongest load charts and longest boom length in its class, according to Manitowoc. At its full 197 feet of main boom, the GMK4070L can lift nearly 5 tons, while at 160 feet, it is capable of picking loads of up to approximately 9 tons. When working at its maximum radius of just under 151 feet, it will lift 1 ton.

“The Grove GMK4070L offers an improved engineering design and adopts several of the latest technologies to deliver a new level of performance, operation, serviceability and fuel efficiency,” said Andreas Cremer, Vice President of Product Management for Mobile Cranes at Manitowoc. “It’s a crane that will be a true game changer, surprising many customers with just how much more a 75-ton all-terrain crane can achieve.”

Power for both the carrier and the superstructure comes from a single 430-horsepower engine that’s clean, efficient and approved for use with HVO (hydrotreated vegetable oil) diesel for those looking to further reduce their carbon dioxide emissions or meet tight environmental job site requirements. The engine’s ECO mode can be used in conjunction with the transmission’s Fuel Saver mode for greater fuel efficiency.

The Grove GMK4070L all-terrain crane has a maximum tip height of 253 feet when the approximately 197-foot main boom is paired with the 49-foot swingaway jib option. These capabilities are more commonly associated with 110-ton models and allow the GMK4070L to take on jobs that would typically require larger cranes.

The optional MAXbase feature helps users reduce setup time and gives them a wider choice of outrigger positions. With this option, the crane becomes an ideal choice for confined spaces or projects where obstacles are preventing setup in the preferred location. It allows the four double hydraulically telescoping outriggers to be easily extended to a range of symmetric and asymmetric positions, maximizing flexibility and enabling lifting work to continue in less-than-ideal conditions.

Features Grove CONNECT

At a configuration of about 18 tons per axle, the crane will carry 19.6 tons of counterweight, just shy of its full 20.9-ton complement. In situations requiring 13.2 tons per axle, it will carry up to 14.6 tons, while for 11-ton per axle configurations it will travel with 5.8 tons of counterweight.

A Telma retarder package in the carrier design reduces the risk of overheating and overall wear and tear on the conventional service brake system. The frictionless, maintenance-free braking system remains effective even after the engine is switched off, or when the gearbox is in neutral, ensuring full braking power is available regardless of the crane’s speed.

The GMK4070L is also one of the first Manitowoc cranes to feature the Grove CONNECT digital platform that provides owners with real-time access to fleet data. Through Grove CONNECT, fleet managers can get instant insights into the crane’s performance with just a couple of taps on a screen. Service technicians are supported with remote, optimized troubleshooting, which reduces the frequency of on-site trips and strengthens preventive maintenance programs. ■