The telehandler or telescopic handler is a heavy duty equipment which is well-known in both the construction and agriculture businesses. These machinery are quite similar in both appearance and function to the forklift, except it more closely resembles a crane. The telehandler provides increased versatility of a single telescopic boom that can extend forwards as well as upwards from the vehicle. The operator could attach various kinds of attachments on the boom's end. Several of the most popular attachments include: a muck grab, a bucket, pallet forks or a lift table.
In order to move loads through areas that are normally not reachable for a conventional forklift. The telehandler uses pallet forks as their most common attachment. For example, telehandlers are able to move loads to and from places that are not usually accessible by standard forklift models. These devices also have the ability to remove palletized cargo from within a trailer and position these loads in high places, such as on rooftops for example. Previously, this abovementioned situation would require a crane. Cranes can be pricey to use and not always a practical or time-efficient choice.
Telehandler's are unique in that their advantage is also their biggest limitation: as the boom extends or raises when the equipment is bearing a load, it also acts as a lever and causes the vehicle to become quite unbalanced, despite the counterweights on the back. This translates to the lifting capacity decreasing quickly as the working radius increases. The working radius is the distance between the center of the load and the front of the wheels.
For example, a vehicle that has a 5000 pound capacity with the boom retracted may be able to safely lift just as heavy as 400 pounds when it is fully extended with a low boom angle. The same unit with a 5000 lb. lift capacity which has the boom retracted may be able to easily support as much as 10,000 lb. with the boom raised up to 70.
England first pioneered the telehandler within Horley, Surrey. The Matbro Company developed these machines from their articulated cross country forestry forklifts. Initially, they had a centrally mounted boom design on the front section. This placed the driver's cab on the machinery's rear part, as in the Teleram 40 unit. The rigid chassis design with the cab located on the side and a rear mounted boom has since become increasingly more famous.