Raw Materials
The body, cab, frame and boom of a telescoping boom rough terrain forklift are usually manufactured by a forklift manufacturer. The most common material used for these subassemblies is steel, because of its amazing strength. At times aluminum or steel forgings are also used. It is common for non-metallic materials such as nylon plastic blocks to be used as guides in the boom assembly. The other components are usually purchased as finished products and the lift truck maker installs them.
Some of the pre-assembled bought products include the transmission, seat, engine, axles, wheels, hoses and tires, lights, back-up alarms, gauges and hydraulic cylinders. Most often, some materials like the fuel and lubricants and hydraulic fluids are bought in bulk. These liquids are added as required when the equipment is assembled and has passed the rigorous testing sessions.
Design
The common design that is most typical of telescoping boom rough terrain forklifts is a long and narrow design which has a set of wheels at the front of the model and another set located towards the rear of the machinery. The unit's boom is mounted at the back of the forklift off of a pivot feature which is raised a few feet above the frame's level. Normally, the cab is mounted on the left-hand side of the frame structure. Typically, the bottom half of the cab is low and located between the tires. The fuel tank and the hydraulic fuel tank are mounted opposite the cab on the right-hand side. Along the vehicle's center-line, the engine and the transmission are mounted in the frame.
Beyond this basic configuration, various manufacturers have contributed to their own unique design. On the market today, there are numerous options offered. Certain models of forklifts use a single hydraulic cylinder in order to elevate the boom, and other units utilize 2 cylinders. Several models make use of a side-to-side hydraulic frame leveling capability. This particular feature enables the frame to tilt up to 10 degrees relative to the axles so as to allow the machinery to compensate for extreme axle articulation. This is used for instance, when the tires on one side of the forklift are located down in a rut and the tires on the other side of the equipment are up, located on a mound of dirt.
Another popular design feature includes fork attachments that are capable of swinging up to 45 degrees both right and left, in order to enable precise load positioning.