Advantages of Rapidclean™ Grate Magnets
Educational / April 12, 2018
Grate Magnets are popular systems for removing foreign metal fragments from food processing lines. Suited to dry products, they are often installed in seeds, grains, sugar, coffee, rice, and other similar ingredients.
The term 'Grate Magnet' typically refers to a magnet system in which multiple magnet bars/tubes are configured in a grid-like arrangement within a stainless steel frame, however, there are many variations of the system available. Some of these include:
Magnattack Global RE80™ Rapidclean™ Grate Magnet
The Rapidclean™ Grate Magnet extended in a self-supporting cleaning position.
Heavy Grate Magnet that has been manually removed for cleaning - risking operator safety.
Example of a multi-bar cleaning method, prone to jamming.
Rapidclean™ Grate Magnet & complimentary Cleaning Tools.
Rapidclean™ Cleaning Tool in use, safely removing collected magnetic fragments.
Non-magnetic stainless steel cones at the fixing ends of the magnet bars enable metal fragments to easily drop off once they have been pushed to the end. These non-magnetic bar ends do not come into contact with the product flow, ensuring that the product maintains maximum contact with +10,000 gauss magnetics for optimum separation efficiency.
RE80™HT models are safe for use in high-temperature applications and have the ability to withstand cleaning temperatures of up to 150°C/302°F.
Example of leakage caused by removing traditional framed Grate Magnets from their housings.[/caption]
- Circular Grates,
- Square/rectangular Grates,
- Center-support style Grates,
- Single-row Grate Magnets,
- Double/multiple row Grate Magnets,
- Grate Magnets in housings,
- Rotating Grates,
- Manual-clean systems, and
- Automatic self-cleaning systems.
Traditional Grate Magnets vs. Rapidclean™ Grate Magnets
Manual-clean Grate Magnet designs of the past are often heavy and cumbersome to handle - meaning that operator safety is at risk during cleaning procedures. The Magnattack Global R&D team created the RE80™ Rapidclean™ Grate Magnet to overcome issues with traditional Grate Magnet designs and also to provide increased foreign metal fragment control for the food industry. Our clients have had major success with the system since 2012 when it was first released to the market. In some applications, these systems have proven to last over a decade in use whilst still maintaining over 10,000 Gauss surface strength. The following information sets out some advantages and benefits of the Rapidclean™ Grate Magnet compared to traditional Grate Magnet systems.Reduced WHS/OSHA risks:
It is not uncommon to hear of injuries caused by handling heavy conventional grate magnets, such as those caused by forcefully pulling grates through sleeves and combined seal cleaning mechanisms. There is also the danger of finger or hand injuries caused by magnets clamping to steel surfaces when they have been removed from their housings. Although very rugged and robust, the Rapidclean™ is a self-supporting, easy-clean system. This means that operators are not required to pull heavy grates through common wiper seals nor remove them from their housings for cleaning, therefore reducing safety risks.


Easy, efficient, and effective cleaning:
The Rapidclean™ Cleaning Tool & Tray is the simple answer for regular cleaning and collection of magnetics for interpretation. The Cleaning Tool eliminates unhygienic hand contact and injuries caused by sharp metal fragments. Individual bar cleaning as opposed to multiple bar cleaning - this not only eliminates the risk of jamming (inherent in multi-bar cleaning methods) but is also very advantageous in that each bar can be individually inspected to ensure that a clean magnet is being returned to the product stream. Individual push tool wipers are tighter, clean more efficiently, and permit less build-up of product. They are proven to be more effective than multi-bar cleaning methods in applications where the product has the tendency to bind, build-up, or become sticky.


Enhanced product flow:
Unanticipated product rate increase and difficult bridging materials can often cause blockage, plugging, and flow problems in Grates consisting of fixed magnet bars in a frame. The Rapidclean's open-ended magnet bars and optionally adjustable bar centers allow for unexpected increased throughput and increased product-to-magnet coverage versatility, therefore solving blockage and flow problems. An optional vibrating motor retrofit can also assist with breaking up sticky or difficult to flow material.Reduced product leakage:
When grates are removed from their housings or the process line, there can be a high leakage of product. The Rapidclean™'s quick-release magnetic door closure provides an even and constant door seal pressure to prevent this problem. [caption id="attachment_261" align="alignnone" width="300"]