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The mobile crawler crane is particular crane made with either a telescopic boom or a lattice boom. These move upon the crawlers tracks. As this crane is self-propelled, it can move around certain work sites without the need for a lot of set up. Due to their enormous size and weight, crawler cranes are are difficult to transport from one location to another and are fairly costly. The crawler's tracks provide the machinery stability and allow the crane to function without utilizing outriggers, although, there are some units which do utilize outriggers. What's more, the tracks provide the equipment's movement.
Early Mobile Cranes
The very first mobile cranes were originally mounted to train cars. They moved along short rail lines which were specially made for the project. Once the 20th century arrived, the crawler tractor evolved and this brought the introduction of crawler tracks to the construction business and the agricultural industry. Not long after, the crawler tracks were adopted by excavators and this further featured the versatility of the machine. It was not long after when crane manufacturers decided that the crawler track market was a safe bet.
The Very First Crawler Crane
Northwest Engineering, a crane company in the United States, was the first to mount its crane on crawler tracks in the nineteen twenties. It described the new machine 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 Ray and Charles Moore of Chicago, Illinois; the Moore Speedcrane was amongst the first to attempt to copy rail lines for cranes. Manufactured in Fort Wayne, Indiana, the Speedcrane was 15 ton, wheel-mounted, steam-powered crane. In nineteen twenty five, a company referred to as Manitowoc Shipbuilding Co, from Manitowoc, Wisconsin recognized the potential and the marketability of the tracked crane. They decided to team up with the Moore brothers so as to produce it and go into business.
The Crown RC 5500 Series was built on a vision that focuses on realistic challenges within the workplace. This ground-breaking unit features intelligent technology and best-in-class comfort and ergonomics. 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, 3500 and four thousand pound capacity.
Performance Versatility
The Crown RC 5500 excels in a busy work environment. This model achieves greatness whether it is operating in an aisle or on the dock. It is designed to offer the operator unparalleled ride control, unmatched visibility and the best ergonomics. The exclusive FlexRide technology offered by Crown provides a suspended floorboard in order to eliminate a lot of the shock and vibration that operators should work with on a daily basis. Interestingly enough, many of the competitor's sit-down truck units are unable to match the reduced impact levels provided 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 enables 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 lessens damage.
Speed - Through Access 1 2 3 Technology combined with the newest AC traction control, top travel speeds are among the best within the business 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
The suspended floorboard offered by Crown's FlexRide significantly improves overall work performance by improving comfort and fatigue is significantly lessened. The constant shock and vibration could lead to severe operator exhaustion for those exposed to those motions everyday specially during travel over dock plates, expansion joints and rough grounds.
