British Manufactured Cartridge Heaters Help ‘Keep Britain Tidy’

Over recent years, the UK population has become increasingly concerned with waste disposal and the recycling of reuseable materials such as plastics, bottles and paper items. As a consequence, the majority of local councils have introduced waste management schemes to households, most often in the form of wheelie bins, for the effective sorting of waste products from the home to either landfill or recycling centres. In fact wheelie bins have become so popular with some authorities that driveways and kerbsides alike are filled with sometimes up to four different bins per household, all jostling for space on collection day.

Wheelie bins are manufactured most commonly in two sizes suitable for either weekly or fortnightly collections and in a number of set colours appropriate to each waste type that may differ from council to council e.g. black for landfill waste, brown for paper waste, green for garden waste, purple for plastics waste. For ease of movement wheelie bins are also fitted with (usually) two wheels, alleviating the need for home owners and refuse collectors to manually lift the bins to the refuse truck – once at truck side wheelie bins are mechanically lifted and tipped.

Two wheeled wheelie bins are relatively simple and inexpensive to manufacture, and often uses recycled plastics material. The primary components of a wheelie bin (the lid and body) are formed by the process of injection moulding. The process begins by first selecting the polymer(s) to be used and then adding specified colourants and other required additives such as UV resistant chemicals that will ensure the colour of the bins will not be bleached by prolonged exposure to outdoor elements. The material is then fed into a hopper where it is forced into a heated barrel and heated to a molten state (this part of the process relies on heating technologies such as cartridge heaters). A screw will then push set quantities of the molten polymer into a heated mould, set in the desired wheelie bin part size. Thereafter, the moulded part will be cooled and released from the mould to allow the process to continue. The final stage of the process requires the lid to be fastened to the body using hinges and a metal axle mounted to the underside of the bin with two rubber wheels attached, afterwhich the finished product is then ready for distribution to councils throughout the country.