Blow Moulding – Not all about Traffic Cones

Although we are most well know for being market leaders in the Traffic Management Product Sector we are also very highly regarded for custom moulding. Whether it be blow moulders, rotational moulders, compression moulders or plastic moulders we can do your customer moulding or trade moulding for you. We have great expertise in all these areas and are based in Bury in the UK.

For those new to trade moulding here’s a little explanation about each type.

Blow Moulding – Pre-mixed material is automatically fed into the Blow Moulding machine’s hopper, this material is heated until melting point, and then extruded vertically via gravity (known as the parison). Two machined profile moulds then encase the material, whilst compressed air is used to inflate the parison against the moulds. The plastic is cooled within the mould, and then removed after the cycle is complete.

Melba Swintex currently own six of the most modernised blow moulding machines of diverse size in the UK. It also owns the largest machine currently in the UK.

This is an example of one of the largest blow moulded products we do http://www.melbaswintex.co.uk/gate.php

traffic barrier

 blow moulding machine

Compression Moulding – Pre-Mixed Material is removed from the extruder after being melted, and then placed into one half of the mould. The top part of the mould is then pressured down and compresses the material into the moulding. A short period is allowed for cooling, and then the product is removed and left to further cool down.

Intrusion Moulding – Pre-mixed material is automatically fed into the machine hopper, this material is heated until melting point, and then extruded into the mould. The mould can either be water or air cooled. Once the product has solidified enough, It is removed from the mould either by hand or with ejection.

Rotational Moulding – Recyclable granulated polyethylene is placed inside the mould. A flame is held underneath to melt the plastic. The mould is then rotated continuously over a period of time. Centrifugal force causes the melted plastic to be pushed to the walls of the mould. The flame is removed whilst the rotation continues, after the cooling process the product can be removed.

So if you need a custom moulding whether by Blow Moulding, Compression Moulding, Intrusion Moulding or Rotational Moulding. Come and see what we can do for you.