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The mobile crawler crane is particular crane made with either a lattice boom or a telescopic boom. These move upon the crawlers tracks. As this crane is self-propelled, it could move around particular work locations without the need for much set up. Because of their enormous size and weight, crawler cranes are are difficult to transport from one place to another and are fairly pricey. The crawler's tracks offer the machine stability and allow the crane to function without utilizing outriggers, however, there are several units that do use outriggers. Furthermore, the tracks provide the machine's movement.
Early Mobile Cranes
The very first mobile cranes were initially mounted to train cars. They moved along short rail lines which were particularly constructed for the project. Once the 20th century arrived, the crawler tractor changed and this brought the introduction of crawler tracks to the agricultural business as well as the construction industry. Not long after, excavators adopted the crawler tracks and this further showcased the machine's versatility. It was not long after before crane companies decided that the crawler track market was a safe bet.
The First Crawler Crane
Around the 1920s, Northwest Engineering, a crane company in the United States, mounted its first crane on crawler tracks. It described the new machinery as a "locomotive crane, independent of tracks and moveable under its own power." By the mid-1920s, crawler tracks had become the preferred means of traction for heavy crane uses.
The Speedcrane
The Moore Speedcrane, developed by Charles and Ray Moore of Chicago, Illinois was one of the first attempts to copy the rails for cranes. Manufactured within Fort Wayne, Indiana, the Speedcrane was a steam-powered, wheel-mounted, fifteen ton crane. During 1925, a company called Manitowoc Shipbuilding Co, from Manitowoc, Wisconsin recognized the tracked crane's potential and marketability. They decided to team up with the Moore brothers so as to produce it and go into business.
Crown has designed their RC 5500 Series to focus on the realistic difficulties faced in the workplace. This innovative model features intelligent technology and best-in-class comfort and ergonomics. Keeping the operator comfortable and safe generally results in more efficiency.
3-Wheel Stand-Up Counterbalanced Truck
The 3-Wheel Stand-Up Counterbalanced Truck comes in 3000, 3500 and four thousand pound capacity.
Performance Versatility
Crown's RC 5500 have been made to work efficiently in a busy work environment. Whether it is operating on the dock or in an aisle, this model achieves greatness. It has been made to offer the operator unparalleled ride control, unmatched visibility and the ultimate ergonomics. The exclusive FlexRide technology provided by Crown provides a suspended floorboard in order to eliminate a lot of the vibration and shock which operators must work with on a daily basis. Interestingly enough, a lot of the competitor's sit-down truck units could not match the reduced impact levels offered by the RC 5500 Series.
Visibility - Maximum visibility is provided for the operator from a side-stance position in both directions of travel. A low-profile provides a clear view mast as well a sculpted chassis allows the operators to be able to clearly see the fork tips, all around the truck and the fender. This optimum view reduces damage and enhances overall safety.
Speed - Through Access 1 2 3 Technology combined with the latest AC traction control, top travel speeds are among the best within the industry and achieved. Levels of performance could be custom tuned in order to match the operator's level of skill or the application requirement.
Operator Safety & Comfort
Crown's FlexRide has a suspended floorboard that could greatly improve the overall work performance of the employee by improving their comfort and reducing their fatigue. The constant vibration and shock can cause extreme operator exhaustion for those exposed to those motions everyday specially during travel over expansion joints, rough grounds and dock plates.
