Inline Automatic Sleeve Sealers – Heat Sealing Machine

An Inline Automatic Sleeve Sealer is a type of heat sealing machine is specially designed to wrap long packs, single packs and collations in trays at faster speeds.

Inline or Side Feed Configuration?

For many applications you would have the choice of utilising either an inline sleeve sealer or a side feed sleeve sealer to achieve the same results. This simply refers to how the product is fed into the heat sealing machine and in many cases there is little to choose between both systems.

A side feed heat sealer can provide more flexibility due to the fact there is a pusher plate which provides a positive push action to push the pack through the curtain of plastic film. This is critical in order to create a trayless collation such as is typical in the drinks industry.

An inline sealing machine is simpler in many ways as it consists of an infeed belt and outfeed belt with the curtain of shrink film between these two belts. A faster speed can be achieved on an inline shrink wrapper but trayless or very small packs cannot be wrapped on this heat sealer as they would not maintain their collation as they transferred from infeed to outfeed conveyor.

With a side feed shrink wrap machine you do not need to worry about gapping the product, but you would have change parts for different sized packs, where as an inline wrapping machine does not require any change parts.

Also, an inline heat sealing machine is the only system to be used when shrink wrapping very large items as you would not want to be pushing a large item through the plastic wrap when it can be driven through far easier on an inline heat sealer system.

Quite often, where a pack is suitable for either option, the actual layout of where the wrapping machine is to be sited can be the deciding factor.

Inline sleeve wrappers are designed for larger packs, where a side feed sleeve sealer would not be suitable, or for standard packs where speed is important. Simplicity is the key as no change parts are required.

Our range of inline sleeve sealers are all provided with inverter driven, variable speed, conveyor belts. Not only is this feature extremely useful for regulating product flow through a production line or lining up another conveyor to feed the heat sealer, it is invaluable when shrink wrapping stacked collations and unstable packs.

This is because the belts do not suddenly come to a dead stop and immediate start whilst sealing the plastic film. Instead they ‘ramp up’ and ‘ramp down’ with each seal cycle. Although this is barely detectable with the naked eye, it makes a huge difference with unstable products, such as a stack of books, or any product where packs are stacked on top of each other.

If the conveyor belts did not have this feature, every time it stopped and started during each seal cycle, the top product would move out of position with the momentum gained because the variable speed belt uses an inverter, this much softer stop and start action ensures this movement does not happen.

Our range of inline automatic sleeve wrappers and shrink tunnels are available in a wide variety of widths to facilitate just about any sized product. We have specifically designed machinery to accommodate wide items for heat shrink sleeving.

YPS are proud to be unique within the industry for providing a service contract free of charge with every heat sealing machine supplied in order to add complete peace of mind.

Key Features

  • Fully safety guarded to exceed C.E. Marking regulations.
  • Heavy duty build quality to provide years of service.
  • Available in a variety of sealing sizes and in-feed arrangements.
  • Easy and intuitive to operate.
  • High speed, low maintenance, heavy duty specially profiled sealing jaw for consistently strong seals on any thickness of film.
  • Variable speed infeed and outfeed belts to provide reliability at high speeds.
  • Available in a variety of sizes up to three metres wide for any sized product.
  • Adjustable height sealing jaw to increase speed.
  • Kissing conveyor option allowing small packs to be wrapped with ease.
  • A variety of outfeed configurations available on the sealer aiding flexibility.
  • Robust, reliable and very easy to operate interface.