Raw Materials
The body, cab, frame and boom of a telescoping boom rough terrain forklift are generally made by a lift truck manufacturer. The most common material utilized for these subassemblies is steel, due to its incredible strength. Sometimes aluminum or steel forgings are used also. It is common for non-metallic materials like nylon plastic blocks to be used as guides within the boom assembly. The other parts are usually purchased as finished products and the lift truck maker installs them.
Some of the pre-assembled purchased products include the seat, transmission, engine, axles, wheels, hoses and tires, lights, back-up alarms, gauges and hydraulic cylinders. Normally, certain materials like for example the hydraulic fluid and fuel and lubricants are bought in bulk. These liquids are added as needed once the machine is assembled and has passed the meticulous testing sessions.
Design
The common design which is most typical of telescoping boom rough terrain forklifts is a narrow and long design which has a set of wheels at the front of the unit and another set situated towards the rear of the machine. The model's boom is mounted at the forklift's rear off of a pivot feature which is raised a few feet above the level of the frame. Generally, the cab is mounted on the left-hand side of the frame structure. Typically, the cab's bottom half is low and situated between the tires. The fuel tank and the hydraulic fuel tank are mounted on the right-hand side, opposite the cab. Along the center-line of the vehicle, the transmission and the engine are mounted inside the frame.
Beyond this basic configuration, different manufacturers have contributed to their own unique design. On the market now, there are many different options offered. Some models of forklifts use a single hydraulic cylinder to be able to raise the boom, and other units make use of 2 cylinders. Some units make use of a side-to-side hydraulic frame leveling capability. This feature allows the frame to tilt up to 10 degrees relative to the axles so as to enable the equipment to compensate for extreme axle articulation. This is used for instance, when the tires on one side of the forklift are situated down in a rut and the tires on the other side of the equipment are up, situated on a mound of dirt.
Another popular design feature includes fork attachments that are capable of swinging up to 45 degrees both left and right, in order to allow accurate load placement.