OVER MOULDING
TM 2000

Contax Ltd - UK

The Werner Wirth TM 2000 Handgun is a low-pressure, hand held moulding machine. This is designed specifically to work with hot melt Polyamides, which are perfectly suited to overmoulding, encapsulating and protecting delicate components. The TM 2000 can be used to apply material to seal or protect parts of a PCB or assembly, or to 'pot' components. When used with an economical aluminium mould tool, the TM 2000 can be used to overmould grommets or strain-relief features onto delicate cables, or encapsulate a connector housing. Or it can mould a housing or protective layer over all or part of a small PCB or sensor assembly. The TM 2000 has a heating chamber which can be filled with up to 300g of hot melt material. Once this has melted and reached the required temperature set on the electronic control, then a simple press of the trigger will give a safe and steady flow of material from the nozzle. The operating pressure is only set to a maximum of 5 bar, and the material temperature can be set up to 245oC. This gives safe operation for hand usage, and the low temperature and viscosity of the material will not damage wire insulation or PCB mounted components. Because of the low pressure compared to normal moulding materials, the moulds used can be made from aluminium, and do not need such tight closure tolerances, so are very economical to make.