When we talk about the second hand machinery, the first and very foremost machine that we find is injection molding machines. Technically, an injection moulding machine is a very complex and sophisticated piece of machinery that is used to create one solid piece by injecting molten materials across a highly advanced and reciprocating screw system into a mould. This machine is widely made up of many components collectively including a hopper, a barrel containing a reciprocating screw, temperature control devices, a clamping unit and the injection mould etc.