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The mobile crawler crane is specific crane made with either a lattice boom or a telescopic boom. These move upon the crawlers tracks. Since this crane is self-propelled, it can move around certain work sites without the need for much set up. Because of their huge size and weight, crawler cranes are are hard to transport from one location to another and are fairly costly. The crawler's tracks provide the machine stability and allow the crane to function without utilizing outriggers, although, there are some models that do utilize outriggers. Moreover, the tracks provide the movement of the machine.
Early Mobile Cranes
Initially, the very first mobile cranes were mounted to train cars and move along specifically made short rail lines. Once the 20th century arrived, the crawler tractor changed and this brought the introduction of crawler tracks to the construction business and the agricultural business. Not long after, excavators adopted the crawler tracks and this further featured the versatility of the machine. It was not long after when crane companies decided that the crawler track market was a safe bet.
The Very First Crawler Crane
Northwest Engineering, a crane company in the USA, was the very first to mount its crane on crawler tracks during the nineteen twenties. 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 operations.
The Speedcrane
The Moore Speedcrane, developed by Ray and Charles Moore of Chicago, Illinois was amongst the first attempts to replicate the rails for cranes. Made in Fort Wayne, Indiana, the Speedcrane was fifteen ton, steam-powered, wheel-mounted crane. During nineteen twenty five, a company referred to as Manitowoc Shipbuilding Co, from Manitowoc, Wisconsin recognized the tracked crane's marketability and potential. They decided to team up with the Moore brothers in order to produce it and go into business.
Crown has designed their RC 5500 Series to focus on the realistic challenges faced within the workplace. This ground-breaking unit features intelligent technology and best-in-class ergonomics and comfort. Keeping the operator safe and comfortable normally leads to more efficiency.
3-Wheel Stand-Up Counterbalanced Truck
The 3-Wheel Stand-Up Counterbalanced Truck comes in 3000, three thousand five hundred and four thousand pound capacity.
Performance Versatility
Crown's RC 5500 have been made to work effectively in a busy work setting. Whether it is operating on the dock or in an aisle, this unit achieves greatness. It has been designed to offer the operator unmatched visibility, unparalleled ride control and the ultimate ergonomics. The exclusive FlexRide technology offered by Crown offers a suspended floorboard so as to eliminate much of the shock and vibration that operators need to work with each and every day. Interestingly enough, many of the competitor's sit-down truck units can not match the reduced impact levels provided by the RC 5500 Series.
Visibility - Maximum visibility is offered for the operator from a side-stance position in both directions of travel. A low-profile offers a clear view mast as well a sculpted chassis allows the operators to be able to clearly see the fender, the fork tips and all around the truck. This optimum view enhances overall safety and reduces damage.
Speed - Top travel speeds are among the best within the business and achieved through Access 1 2 3 Technology combined with the latest AC traction control. Performance levels could be custom tuned to be able to match the application requirement or the operator's skill level.
Operator Safety & Comfort
Crown's FlexRide has a suspended floorboard that could greatly improve the overall work performance of the worker by improving their comfort and reducing their exhaustion. The constant shock and vibration could result in severe operator fatigue for those exposed to those motions on a daily basis specially during travel over expansion joints, rough floors and dock plates.
