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Grove Readies the GMK6400, GMK6300L For ConExpo 2014

The two new cranes are set to aim high in Las Vegas in March.

Thu December 12, 2013 - National Edition
Construction Equipment Guide

Manitowoc Cranes will feature the Grove GMK6400 and the GMK6300L.
Manitowoc Cranes will feature the Grove GMK6400 and the GMK6300L.
Manitowoc Cranes will feature the Grove GMK6400 and the GMK6300L. Manitowoc Cranes will feature the Grove GMK6400 and the GMK6300L.

Manitowoc Cranes will feature two of its largest and most successful Grove all-terrain cranes at ConExpo 2014: the new Grove GMK6400 and the GMK6300L.

Grove GMK6400

The GMK6400 is one of Grove’s newest offerings and one of the lifting industry’s most powerful six-axle cranes. Its 450 ton (400 t) capacity offers a high lifting capability and it has a variety of cutting-edge features.

Global product director of all-terrain cranes, Astrid Hager-Guthrie, said the GMK6400 boasts a variety of upgrades that will help customers increase efficiency, while it remains easy to use.

“We’re very excited to show the GMK6400 at ConExpo,” she said. “It has the best load chart in its class, a new drive system for the carrier never seen in this size category and a host of other unique features that won it the ESTA Innovation award at bauma 2013 in Munich, Germany — features such as the capacity-enhancing mega-wing-lift attachment that can boost the crane’s capacity by almost 70 percent, from [42 to 71 tons] at [197 ft,].”

The single engine drive system drives both the carrier and superstructure. This reduces its overall weight and improves fuel economy. Manitowoc’s engineers reallocated the weight savings to other parts of the crane’s design, further boosting capacity, according to the manufacturer.

The GMK6400 has a full-power, five-section Megaform boom with twin-lock pinning that measures 51 to 197 ft. (15.4 to 60 m). When paired with the luffing jib that extends from 82 to 259 ft. (25 to 79 m), the maximum system length reaches 438 ft. (134 m).

Grove also paid particular attention to the crane’s ease of rigging, with a self-rigging auxiliary hoist, removable outrigger box (ROB), counterweight and a self-rigging mega-wing-lift attachment that can be rigged in less than 20 minutes.

Symmetrical counterweight slabs are another feature that make for easy transportability. The MegaDrive system gives the crane both conventional and hydrostatic drive capabilities. Both all-wheel and separate steering of the third to sixth axles provide ultimate maneuverability.


Also at Manitowoc’s ConExpo booth will be a Grove crane that’s seen global success: the GMK6300L. The 350 tons (300 t) capacity all-terrain crane has won customers on five continents due to its 262 ft. (80 m) boom, the longest in its class.

Hager-Guthrie said several of the crane’s features have contributed to the success of the GMK6300L.

“The GMK6300L has been a huge success for Manitowoc, so it’s only fitting that the crane be featured at ConExpo,” she said. “It’s a versatile crane that’s very mobile, both on and off the job site. It commands a large lifting capacity and long reach, while its compact footprint enables it to fit into tight working quarters.”

The reach of the GMK6300L is owed to its seven-section, 262 ft. (80 m) Twin-Lock boom and Manitowoc’s patented Megaform design for optimized rigidity and capacity. For even further reach, a 121 ft. (37 m) jib is available. At its high reach — a maximum system length of 384 ft. (117 m) — the crane can still lift an impressive 2.2 tons (2 t). With very strong load charts, the crane has a 31 percent lifting advantage over other cranes in this class, making the GMK6300L ideal for heavy lifts at tall heights, according to the manufacturer.

Grove’s Megatrak system provides optimum travel for the GMK6300L, both on and off the road, making it practical for both rugged job sites and city streets. The all-wheel steered crane has the latest steer-by-wire technology included on the first, second, fifth and sixth axles. Its cab can accommodate up to three crew members and has ergonomic positioning of the instruments and controls.

“All of these features have contributed to the success of the GMK6300L, and it has received such a warm reception from our customers,” Hager-Guthrie said. “We’re eagerly awaiting ConExpo 2014 and are confident our Grove all-terrain cranes will be one of the main attractions. We look forward to connecting with our customers and showing them these innovative all-terrain cranes.”

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