What is Coffing Hist?
Coffing hist is the business name of the well -known group of chain jacks. However, many are used as a general description for all similar lifting devices. The screaming jack can be controlled or powered by an external energy source and all use a system of gears and rags that raise the block of the hook suspended on the chain. Models of manual spicy are usually operated by a lever or continuous string loop that controls the mechanism of lifting with gear, while the driven variants are usually driven by an electric or compressed air engine. The name became synonymous with many circles with chain jacks in general, with other brands generally referred to as Coří. Křičík is available in a comprehensive range of capacities and drive configurations, is a simple, reliable and safe lifting solution that requires liking and operator's skills.
Most chain jacks are working on a princeCipu shortening or extending the string loop on which the hook block is suspended. When the loop is extended, the hook block and any load it carries descends. When the loop is shortened, the block and load are raised, reached by one end of the loop attached to the static point in the stroke cover, while the other end is connected to the driven coil. The uncovered loop of the chain under the jack cover passes around the free toothed coil located in the hook block.
When the spray is activated, the boast will be boasting, depending on the direction it is driven, either the wind or release the chain around its alta. This results in shortening or extending the exposed chain loop. Due to the free gear in the hook block, it does not move along the chain in a fixed position, but Rather moves directly up or down at the top of the loop when it extends or shortens. This subsequently adds an increase or decreasing stroke action.
are available manual and driven jacks but work with different backreindeer. Manual coating models can either use the lever to control the coil, or a separate, continuous string loop that powered the coil by means of a gear at its one end. The selector switch is used to set the jack to reduce or lift the load. The driven jacks work in a similar way and use a reversible electric or compressed air engine to control the mechanism. The engine controls are usually suspended from the jack cover on the flexible cable, allowing the jack operator to control operations from a safe location.