Rack jack - a mobile (portable) device that allows you to lift various loads to a height. This type of device is actively used in many areas due to various types of structures, and a distinctive feature of other lifting mechanisms is that they are placed under the load, and not above it. The rack and pin jack is particularly popular with motorists, due to its compactness and simplicity of the device. They can have a cast-iron or steel rail, and they can lift the load to the height of this same rail.
In general, the rack and pin jack is quite popular in all areas. The essence of its mechanism is that in its design there is a gear rack having a special support cup. The mechanism is driven by the rotation of the handle, which moves the load along the rail along with the support cup.
The DR-5 rack jack is designed to lift the load through a manual drive. This type of device is capable of lifting a load to a small height with a high degree of accuracy, while requiring a minimum amount of physical effort. The DR-5 rack jack has in its functional equipment a cargo brake, the main task of which is to ensure the holding of the lifted load. It is important that in this case a proportional load on the rail axis is observed.
Distinctive features of these mechanisms is that they are a compact device that does not require any complex manipulations in operation. When lifting the load provides a high level of ride. Thanks to the expanded base, the jack has increased stability, and its carrying capacity is 5 tons. All these positive aspects make this device indispensable in some areas of industry.
The DR-10 rack jack has a ratchet mechanism that ensures safe operation and secures the load during lifting. High maintainability and reliability make such devices ideal for use in difficult technical conditions. The load capacity of the DR-10 jack is 10 tons, which expands the scope of its application compared to the previous view.
The rack and pin jack allows you to stop the load from rising at any height, while the load will be securely locked. The scope of the lifting mechanisms is determined by their technical capabilities: device type, load capacity, the presence of additional functions and more.
As noted above, such mechanisms have gained the greatest popularity among motorists, and especially those who prefer off-road to smooth roads. In such extreme conditions, this type of lifting device is an ideal helper.
Jacks capable of lifting more than 10 tons are mainly used in construction work and for laying railway rails. They can also be used not only in the horizontal, but also in the vertical plane, while the main condition is the availability of a reliable support. The maximum possible lifting capacity of rack and pinion jacks is 20 tons.
In addition to rack and pinion jacks, there are also screw, hydraulic and pneumatic types.