Lifts of any kind, like their name implies, are meant to raise people or things to higher levels. Many machines and devices have been innovated for this purpose. Aerial lifting equipments are devised for this purpose and are extensively used in factories, warehouses, ports, yards, and construction sites. A scissor lift is one such equipment that is widely popular. Scissor lifts usually can move only vertically. There are other aerial devices that can usually be moved vertically as well as horizontally.
Types Of Scissor Lifts
There are three main categories of scissor lift depending on the technology used to create the upward motion – hydraulic, pneumatic, and mechanical.
A hydraulic lift is commonly found in most places mainly because it is easy and simple to use as well as for being quite cost-effective. The hydraulic lift table uses one or more hydraulic cylinders to generate the upward and downward motion. It requires minimum human effort in handling it. It also has great capacity to withstand weight. In case of mechanical ones, pinions and screws are generally used. They are of limited capacity and can be used where the requirement to lift weights are limited to small objects and human beings. Pneumatic scissor lift uses the technology of air pressure to lift objects.
Scissor lift is generally weight-sensitive. They are able to bear different weight limits. There are scissor lift with the capability of lifting cars and much heavier machinery. Many of them are automatic. It lowers as more weight is added to them. It also comes as double and triple lifts. As the name suggests, double lifts have two pairs of crisscross legs on them and can go double higher and triple have three legs. It is generally made of strong metal that is quoted with enamel paint to reduce the possibilities of wear and tear and rust.
It is always advisable to have a scissor lift, no matter what the type, to be operated by a well-experienced and qualified person. They generally come as hand-operated or foot-operated. Operating these contraptions could be quite tricky and even a small error could cause bad accidents. Due to this, companies have now started to produce automated lifts that work with remote control. These robotic lifts are safer and do not need a human operating it from right underneath it. The operator can stand at a safe distance and operate the lift with the help of remote sensors. The problem with it is that it is extremely expensive and thus people prefer to select the much cheaper hydraulic lift that are more commonly available. But, they too are trying to improve the safety aspects of the lifts by adding toe guards, safety bars, skirts, fail arrests, and fuses.
A scissor lift has become a part and parcel of any warehouse, construction site, or port. Lifting heavy items into and out of high places is quite impossible without such machines. They make life easier for the workers and also help get the job done faster.