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Conveyor Belt – What is one?

PU PVC Belts Grip Top Conveyor Belt

What is a conveyor belt?

A conveyor belt carriers products from A to B. It is usually made from a suitable material that is manufactured in such a way that is creates an endless band. This then spans around a series of rollers that move the belt. A conveyor can come in many forms depending on the requirement. In its most basic form a conveyor will generally have two rollers, onedrive and one tail, in which the belt will wrap around.

What materials can you make a conveyor belt with?

A conveyor belt can be manufactured from a wide number of specialist materials such as polyurethane (PU), Polyvinyl chloride (PVC), Synthetic Rubber. More specialist products such and Polytetrafluoroethylene (P.T.F.E) and Teflon are also available. Conveyor manufacturers can choose any of the above materials, plus many more. We tend to specialist on PTFE which accounts for the main part of our business. These are broken in to two main sections which are mesh and closed weave. Mesh is an open construction which allows air to pass through the material. This is generally used on conveyors that are designed to dry products at higher than normal temperatures. Closed weave PTFE belts are generally used to conveyor hot product that may have a tendency to stick to a conventional belt.

Can Techbelt make recommendations to conveyor designers? 

Techbelt works closely with conveyor manufacturers to ensure the correct belt is specified. We also can offer information on the parameters suitable for our conveyor belt to work with. There are a number of areas we advise on. This can be detail such as which roller can I use or is suitable for PTFE coated glass belts? In this instance we would always recommend using a flat and parallel roller. The reason for this is that if you use a crowned or barreled roller it can cause the glass fibers to fracture or break easily whereas this generally is not a problem on PU or PVC conveyor belts. Other technical assistance and advise can also be provided on how best to track your conveyor belt. his could be via the use of tracking attachments on your belt or specialist automatic tracking systems which are available on the market.

Do you have a specialist field?

We are a specialist producer of conveyor belts that are heat resistant and non-stick. The two materials we use to make a conveyor belt from are either silicone or P.T.F.E. They both offer extreme property benefits that many standard belts do not. Silicone is extremely good when you need a non stick surface and is not required to be in contact with food products. Silicone is generally better than PTFE due to the non uniform surface. The operation temperature of silicone is however lower than PTFE. This is around 232 degree C. A PTFE belt is capable of resisting and continuously working at 260 degree C and is fine to be used in contact with food as it generally meets FDA approval depending on the the type of PTFE used.

What sort of companies would use your belt?

Food manufacturing companies are good examples where non-stick, heat resistant PTFE belts are used. An ever increasing market for Teflon belts is continuous contact grilling lines.

How do these conveyor belts work?

These type of conveyor systems use a top and bottom belt which sandwich product between them. This allows heat to transfer through the conveyor belt to cook the food. This is done while conveying the product through the machine. On exiting the machine, the food is cooked and ready for the next stage or processing.

Any other processes?

Other machines that benefit from a P.T.F.E conveyor belt are hot air or microwave ovens. The would tend to use the open mesh PTFE materials that we discussed earlier. Some machines convey cereals and other food products. The style of conveyor belt best suited to these processes are again PTFE mesh belts. The mesh opening size is offered in a number of options and in a size that is enough to ensure the product does not fall through. The mesh allows air to reach the underside and dry the product. We finish the belts with a special high temperature edge reinforcement. This protect the edge from easily becoming damaged. We also fit the belt on the conveyor with a special joining machine or they can be supplied with a special mechanical fastener.

How can we contact Techbelt?

Techbelt can be contacted to discuss your belt or any other enquiry by phoning our UK sales office on 0044 (0) 1422 366 386 or e mail us at sales@techbelt.com.

We have team of Technical sales assistance who have all have a background in the manufacture of conveyor belts and engineering all having years of knowledge and experience in order to best advise.

 

 

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