GRT655 and GRT655L
1. High capacity and reach in a compact format
At 141 feet, the GRT655L has the longest boom in its class. It has the advantage that no additional jib is needed for long-distance jobs. When working with a jib, operators can reach more than 183 feet and nearly 197 feet at maximum tip height. The standard boom version, the GRT655, has the strongest load charts in its class and is the preferred choice when extra capacity is needed. Both models share a light and compact carrier, weighing only around 35 tons and measuring less than 10 feet in width. Therefore, crane operators can drive into narrow spaces such as refineries, power plants and densely populated areas, and access a greater variety of job sites
2. Extremely easy to transport and maneuver
The narrow dimensions of either model — the most compact in their class — make them easy to transport on a trailer, and they can be shipped in one compact load. When maneuvering around a job site, operators also benefit from all-wheel steering with a choice of four steering modes: two-wheel front, two-wheel rear, four-wheel crab and four-wheel coordinated. In coordinated mode, the crane has a turning radius of about 21 feet, allowing it to access even the most congested sites.
3. Quick and intuitive operation
The Manitowoc Crane Control System (CCS) makes it intuitive to set up, control and command the crane. This system is common with all-terrain cranes, as well as truck-mounted and crawler cranes. Data is put into the CCS with a jog dial on the right armrest a.nd/or the buttons on the two displays. This can easily be done even when wearing gloves. The speed and ramp of each movement can be customized according to individual operator preferences. Many options are available for the least experienced to the most experienced operator, and advanced troubleshooting and diagnostics are provided on board. The GRT655 and GRT655L also offer very high single line hoist speed and pull, making them very productive cranes that complete the job quickly.
4. Unparalleled comfort and visibility
The cranes have a full-vision cab with minimal blind spots. In addition, the cab can be tilted up to 20 degrees to help the operator stay comfortable and productive when working with the 141-foot boom or a jib on top of that. The GRT655 and the GRT655L are the only 60-ton, rough-terrain cranes with a tiltable cab.
The effective heating and air conditioning system, with multiple vents to increase air flow, also help the operator stay focused and feel comfortable even on hot summer days. When entering and exiting the cab, flat decking on the chassis, grab handles around the cab and steps to access the crane on all four sides offer support — ensuring that the cab operator can always maintain three-point contact.
5. Low total cost of ownership
The cranes include many features that reduce maintenance requirements and increase component service life. For example, by mounting the outriggers’ jack cylinders upside down, the chrome part of the cylinder and the seals are protected against sand, dust and general contaminants. Furthermore, it has a hydraulic braking system, instead of a pneumatic variety often seen in the industry. This eliminates the need for a separate system and maintenance. Finally, the ECO mode and hydraulic load sensing system reduce fuel consumption by up to 30% compared to older models. The hydraulic load sensing system sends oil only when it is needed, which leads to less overheating, less wear and less fuel consumption. Combined, these savings deliver a low total cost of ownership.