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The crawler crane is a particular type of mobile crane which is available with either a telescopic boom or a lattice boom which moves upon crawler tracks. As this unit is a self-propelled crane, it could move around a jobsite and completing tasks without a lot of set-up. Because of their huge weight and size, crawler cranes are rather pricey and even hard to transport from one site to another. The crawler's tracks provide the machine stability and allow the crane to work without utilizing outriggers, although, there are some models that do use outriggers. What's more, the tracks provide the machine's movement.
Early Mobile Cranes
Initially, the very first mobile cranes were mounted to train cars and move along specifically built short rail lines. Once the 20th century arrived, the crawler tractor changed and this brought the introduction of crawler tracks to the agricultural business and the construction business. Not long after, the crawler tracks were adopted by excavators and this further featured the versatility of the equipment. It was not long after when manufacturers of cranes decided that the crawler track market was a safe bet.
The Very First Crawler Crane
Northwest Engineering, a crane manufacturer in the United States, was the very first to mount its crane on crawler tracks in the nineteen twenties. It described the new equipment as a "locomotive crane, independent of tracks and moveable under its own power." By the mid-1920s, crawler tracks had become the chosen means of traction for heavy crane operations.
The Speedcrane
Developed by Charles and Ray Moore of Chicago, Illinois; the Moore Speedcrane was among the first to attempt to copy rail lines for cranes. Made within Fort Wayne, Indiana, the Speedcrane was 15 ton, steam-powered, wheel-mounted crane. In nineteen twenty five, a company called Manitowoc Shipbuilding Co, from Manitowoc, Wisconsin recognized the marketability and the potential of the tracked crane. They decided to team up with the Moore brothers in order to manufacture it and go into business.
Crown has designed their RC 5500 Series to focus on the realistic difficulties faced in the workplace. This ground-breaking model features intelligent technology and best-in-class comfort and ergonomics. Keeping the operator safe and comfortable usually results in more productivity.
3-Wheel Stand-Up Counterbalanced Truck
The company manufactures a 3-Wheel Stand-Up Counterbalanced Truck in capacities varying from three thousand, 3500\three thousand five hundred and 4000 pound capacity.
Performance Versatility
Crown's RC 5500 have been designed to work efficiently in a busy work setting. Whether it is operating on the dock or in an aisle, this model achieves greatness. It has been made to provide the operator unparalleled ride control, unmatched visibility and the ultimate ergonomics. The exclusive FlexRide technology offered by Crown provides a suspended floorboard so as to eliminate a lot of the vibration and shock that operators should work with on a daily basis. Interestingly enough, a lot of the competitor's sit-down truck units are unable to match the reduced impact levels offered by the RC 5500 Series.
Visibility - From a side-stance position in both directions of travel, this model provide maximum visibility for the operator. 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 enhances overall safety and reduces damage.
Speed - Through Access 1 2 3 Technology combined with the newest AC traction control, top travel speeds are amongst the best in the industry and achieved. Levels of performance are able to be custom tuned to be able to match the application requirement or the operator's skill level.
Operator Safety & Comfort
The suspended floorboard provided by Crown's FlexRide significantly enhances overall work performance by improving comfort and fatigue is significantly lessened. The constant vibration and shock could cause severe operator exhaustion for those exposed to those motions on a daily basis especially during travel over expansion joints, rough floors and dock plates.
