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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 can move around particular work locations without the need for a lot of set up. Due to their huge size and weight, crawler cranes are are difficult to transport from one site to another and are rather expensive. The crawler's tracks provide the machine stability and enable the crane to function without using outriggers, however, there are some models that do use outriggers. In addition, the tracks provide the movement of the machine.
Early Mobile Cranes
Originally, the very first mobile cranes were mounted to train cars and move along specially made short rail lines. When the 20th century arrived, the crawler tractor evolved and this brought the introduction of crawler tracks to the construction business as well as the agricultural business. Not long after, excavators adopted the crawler tracks and this further showcased the equipment's versatility. It was not long after when manufacturers of cranes decided that the crawler track market was a safe bet.
The Very First Crawler Crane
Around the 1920s, Northwest Engineering, a crane manufacturer in the USA, mounted its very first crane on crawler tracks. 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 Moore Speedcrane, developed by Ray and Charles Moore of Chicago, Illinois was amongst the first attempts to replicate the rails for cranes. Made within Fort Wayne, Indiana, the Speedcrane was a steam-powered, wheel-mounted, 15 ton 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 to be able to produce it and go into business.
The Crown RC 5500 Series was made on a vision that concentrates on realistic challenges within the workplace. This innovative model features intelligent technology and best-in-class comfort and ergonomics. Keeping the operator comfortable and safe 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 4000 pound capacity.
The Crown RC 5500 excels in a busy work environment. This unit achieves greatness whether it is operating on the dock or in an aisle. It is designed to provide the operator unparalleled ride control, unmatched visibility and the best ergonomics. The exclusive FlexRide technology provided by Crown provides a suspended floorboard so as to eliminate much of the shock and vibration 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 - From a side-stance position in both directions of travel, this unit offer 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 lessens damage and improves overall safety.
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 in order to match the application needs or the operator's skill level.
Operator Safety & Comfort
The suspended floorboard provided by Crown's FlexRide significantly enhances overall work performance by enhancing comfort and fatigue is greatly reduced. The continuous shock and vibration can lead to severe operator exhaustion for those exposed to those motions everyday especially during travel over expansion joints, rough surfaces and dock plates.