käsitõstur

Käsitõstur, also known as a manual hoist or hand-operated hoist, is a mechanical device used for lifting and moving heavy loads. It is powered by human effort, typically through a hand chain or lever. These devices are commonly employed in workshops, construction sites, warehouses, and industrial settings where lifting heavy objects is a frequent requirement.

The fundamental principle behind a käsitõstur involves a system of gears and a lifting chain or wire rope. When the hand chain is pulled, the gears engage, multiplying the applied force and enabling the lifting of substantial weights. There are several types of käsitõsturid, including chain hoists and lever hoists. Chain hoists generally use a suspended chain to lift loads, while lever hoists utilize a lever mechanism for pulling the load horizontally or vertically.

Käsitõsturid are valued for their simplicity, portability, and relatively low cost. They do not require external power sources like electricity or compressed air, making them versatile in various environments. Safety is a crucial aspect of their operation, and they are typically equipped with safety features such as overload protection and robust braking systems to prevent accidents. Regular maintenance and inspection are essential to ensure their reliable and safe performance.