The mast mechanism of a reach truck works by using a combination of hydraulic cylinders and a set of interlocking mast sections. When the operator activates the lift controls, hydraulic fluid is pumped into cylinders that push the mast sections upward, extending the forks. The mast typically has two or more stages, and as the truck lifts, the inner mast moves up while the outer sections extend forward, allowing the forks to reach further into racking systems. When retracting, the process reverses: the hydraulic cylinders lower the mast, pulling the forks back to the truck's body. This design allows the reach truck to lift high while maintaining a compact footprint, ideal for narrow aisle operations.
The mast of a reach truck is a critical component that allows it to lift and extend the forks in both vertical and horizontal directions. It typically consists of multiple mast stages that slide and interlock with each other to extend and retract as needed. The reach truck's design is specifically engineered to provide maximum reach while maintaining a narrow profile, which is particularly useful for working in tight spaces, such as narrow aisles in warehouses.
At the core of the reach truck's mast mechanism is the hydraulic system. When the operator activates the lift controls, hydraulic pumps direct pressurized fluid into hydraulic cylinders located at the base of the mast. These cylinders are the driving force that moves the mast sections.
Regular maintenance of the mast and hydraulic system is essential for safe and efficient operation. Operators should check the hydraulic fluid levels, inspect the mast sections for wear or misalignment, and clean the rollers or sliding components to ensure smooth operation.
The reach truck's mast mechanism is a sophisticated system of hydraulic cylinders, mast stages, and carriage extensions that allow the forklift to both lift and reach loads at significant heights and depths. The combination of vertical and horizontal movement makes the reach truck ideal for use in environments with high-density storage systems, narrow aisles, and high racks.