Transfer it. Convey it. Transport it. Automate it.
Vacuum conveying is a clean, efficient and environmentally friendly method of transferring powders and granules within a contained system. Hanningfield supply a range of vacuum conveyor systems (the Uni-Vac series) for the fast and contained transfer of powders, granules, flakes and pellets. These systems are designed with performance and strict hygiene criteria in mind, making them suitable for use in high-integrity applications such as pharmaceutical, food, chemical and nuclear projects.
Vacuum conveying provides a cost-effective and automated approach that will improve both production and reduce contamination. The Uni-Vac system significantly reduces the loss of materials through manual handling and saves time and money by eliminating costly labour. The Hanningfield Uni-Vac system uses negative pressure to transport bulk material in a dust free manner through smooth bore conveying pipe-work. From pick-up to the discharge point, the system is totally enclosed, a major benefit to the environment and process personnel.
How does it work?
The Loading (Charging) Cycle
Material is sucked into the vacuum hopper using a hand held vacuum wand or feed-bin arrangement. During the loading or ‘convey cycle’ vacuum is drawn on the vacuum hopper lid through a filter, thus drawing the material to be conveyed into the vacuum hopper chamber. Vacuum is present throughout the loading cycle and interrupted only during the unloading cycle. The outlet or ‘discharge-valve’ remains closed during the loading phase.
The Unloading (Discharging) Cycle
Once the hopper is full (controlled by timer) vacuum is relieved and the discharge valve at the base of the vacuum hopper opens. Material then falls by gravity to the receiving container situated below. During the unloading of material ‘discharge cycle’ a reverse jet compressed air blast cleans the filter in the lid of the hopper. An option is available to use a bag shaker mechanism in place of the reverse jet air blast. At the end of the discharge cycle the system automatically resets to continue on with the next convey cycle.
> Increases throughput and efficiency compared with manual handling
> Reduces loss of material
> Minimal risk of contamination
> Easy to clean design for minimal operational downtime
Improved working environment:
> Reduces airborne dust
> Increased safety and hygiene through automation of pick-up and transfer
> Reduced operator fatigue
High return on investment:
> Increased productivity, allowing more material to be processed
> Less product loss, resulting in improved efficiency
> Minimal risk of contamination, reducing number of condemned batches
Furthermore, all units are constructed from either 304 or 316 stainless steel to suit your process.
Video: Learn about how our vacuum transfer systems are typically employed to improve your process >>
Watch: Learn about how our vacuum conveyor systems can be easily disassembled for cleaning >>
Get in Touch
If you would like to speak to one of our experts regarding our Vacuum Conveyor Systems or you would like a quote for one of our products, send us a message using our contact form or Contact Form or call us on +44 (0)1702 549 777.