Introduction to manual keys

Hand lifts are mechanical devices designed to lift, lower or move heavy loads through the application of manual force. They use systems of pulleys, gears and chains that multiply the force exerted, facilitating the manipulation of objects that would otherwise be difficult or impossible to move with direct human force. These equipment are widely used in construction, industrial maintenance, and in various lifting and traction tasks.

Their robust design, simplicity and versatility make manual keys an essential tool for operations in places where electrical or hydraulic power is not available, or when precise and safe control of the movement of loads is required. There are different types of manual lifters, each adapted to specific needs depending on capacity, type of load and work environment.

Manual chain key

The manual chain hoist is the most common type and used in different industries. It consists of a load chain that passes through a gear and brake mechanism, allowing heavy loads to be lifted or lowered with precision. The chain is operated manually, and the design incorporates an automatic braking system to keep the load safely suspended.

These keyboards are valued for their portability, resistance and efficiency. They are used in workshops, warehouses, and in construction to lift loads such as machinery, materials or metal structures. Furthermore, its maintenance is relatively simple, and there are models with different load capacities, from fractions of a ton to several tons.

It is essential to choose a chain hoist with the appropriate capacity and perform regular inspections to ensure operational safety.

Manual lever key

The manual lever jack, also known as a lever jack, uses a lever to move a chain or cable and move loads horizontally or vertically. Its mechanism allows considerable force to be applied through repetitive movements of the lever, making it ideal for situations where it is required to lift or tension objects with precision.