02 9938 4493
0404 876 203
02 9938 4496
Suite 35 Level 2
42 - 46 Wattle Road
Brookvale, NSW, Australia, 2100
There is a tremendous range of machines manufactured to pack items varying in size from torch batteries to lounge suites, bed mattresses and rolls of carpet.
The principal types of machines are :
Usually manufacturers have their own preference as to which grade of material they use depending on their particular machine. In the most markets , 0.135 mm TCG005AD thick fabric is used most, although 0.076 mm TCG003AD, and,0.250 mm TCG010AD are also used.
These machines are usually used in conjunction with an ‘L’ Sealer, and therefore machine manufacturers usually sell a combined system.
When the package enters the oven the machine applies shrink film tightly around the item being packed. We supply a number of varying styles and sizes of PTFE Mesh conveyor belts used for this type of packaging machine.
Many supermarket products are sold where the product is presented, with a clear plastic film sealed to a cardboard backer. The packaging machines used for this type of presentation, usually rely on a 0.135 mm TCG005AD PTFE coated glass fibre tape to give good release from the heated portion of the mould.
Flat polymeric film is run over a forming shape to produce a tubular form. This is then sealed continually into a tube into which the product, that has been automatically weighed, is introduced. A second heat sealing operation then seals the tube into the closed bag.
The formers are covered with strips of 0.135 mm TCG005AD PTFE coated glass fibre tape (5 thou AD) to reduce friction. The heat sealing heads are also covered with PTFE coated glass fibre tape (5 thou AD) .
Lentils, beans, nuts, crisps and confectionery, along with many other materials are packaged in this way.
It is important that the heat sealing jaws are maintained in good order, and from experience, a planned maintenance scheduld should be introduced to replace PTFE coated glass fibre tape (5 thou AD) the at regular intervals.
Larger companies extrude, print and seal enormous numbers of bags. Smaller companies purchase extruded film and simply print and seal.
Many types of machines are on the market, but most of them rely on PTFE glass fabric to give most efficient results. Usually the sealing is effected by the action of a heater bar against a rotating rubber roller covered in PTFE coated glass fibre tape (5 thou AD).
Good maintenance is essential. The stable GORTEF TAPE adhesive system is beneficial when removing used PTFE glass fabric from the rubber roller. By carefully peeling back the GORTEF tape, it is normally possible to remove it without leaving behind silicone adhesive on the rubber roller. Competitive products have a tendency to leave behind adhesive, thereby adding to the time required for cleaning.
If plastic films are being used to package product, then PTFE glass fabrics are also being used. In some cases usage is very small, however, the large manufacturers particularly food processors can have significant usage. The packaging by end users of products such as nuts,spices,tea,meat products,bread,biscuits,confectionery, and sauces also uses our PTFE coated glass fibre products.