Magnetic Box Maintenance Manual
GME magnetic box is the new magnetic fixture designed for fixing precast concrete formwork, compared to the traditional way of bolted fixing, magnetic box can be disassembled quickly with flexible operation, strong holding force, and consequently improve the work efficiency, reduce man power, low down the wastage of the steel platform, now the magnetic box is used worldly in PC industry.
1. While using magnetic box, it is necessary to avoid sundries at the bottom as the gap will affects the holding force of magnetic box and steel platform.
GME magnetic box is made of high-performance Neodymium material, it have strong holding force.
When the magnetic box work, the suction side at the bottom of the magnetic box is tightly attached to the steel platform. But when there are sundries (such as concrete, grease, film) at the bottom, the magnetic box is not closely attached to the platform, and the holding force will be significantly reduced.
As a prove, we test our GME-1000 magnetic box to study the relationship of holding force and the gap between magnetic box bottom and the platform . We put 0 ~ 10 pieces A4 paper (thickness 0.09 mm) between the bottom of the magnetic box and the platform and then test the holding force with different gap. The test data is as below:
As the picture show, the gap between the bottom of the magnetic box and the platform will significantly influence the holding force, so we recommend customer maintain the magnetic box according to the following methods:
2. Cleaning method:
Before use it, we should confirm the magnetic box bottom and platform is clean and flat. If the bottom have sundries, we can use stainless steel scraper to clean (iron scraper will be attached to magnet, it can't clean up), if it is not easy to clean up material such as hard concrete, we can use polisher to clean. Like the below picture shows: firstly Install polishing brush on the polisher, and then polish the magnetic box bottom to make it clean and flat.
3. Handle with care, prevent the magnet damage
Since the magnet is made of rare earth materials, the material character is similar to ceramics, stiffness and brittle , easily broken.
So that when we use the magnetic box, we should prevent it falling, throwing and avoid using stiff tools (such as iron hammer) to knock, crash, otherwise the magnetic box will be of deformation, as the below picture show.
When we remove the magnetic box, please don’t use the metal hammer to knock directly, we should use the lever to pick up the switch firstly, and the holding force of the magnetic box and the platform is reduced dramatically, then the magnetic box can be moved easily by hand like the below picture:
When we press the magnetic box, also can’t use metal hammer to knock directly, suggest use the foot press down, rely on human body gravity press down, but can’t stomp, prevent slip and hurt.
If you must use a tool, please use a rubber hammer to gently tap.
4.Magnetic box collection
After use, the magnetic box should be cleaned up and placed on the stainless steel cart, to keep it clean and easy to use next time. The magnetic box can’t be placed on the iron cart, because the magnetic box will be attracted to iron cart.
5. Magnetic box storage
5.1When the magnetic box is not used for a long time, after cleaning, we should clean the bottom surface with anti-rust oil (such as mobile, Great Wall, etc.), in this way, we can prevent the magnet block from rusting since rusting will influence the magnetic box holding force too.
5.2 Magnetic box work and storage temperature should not be higher than 80C, the surrounding should have no strong acid, strong alkali and other corrosive media.
In conclusion, as long as we can do as per above protection, cleaning, and storage measures, we believe our GME magnetic box must be durable and trustworthy!