Lifting magnet FX-VV300 HOT

The lifting magnets of the FX-VV HOT series are used primarily for the lifting and handling of hot workpieces, up to 300°C. The magnetic field of the lifting magnets is generated by neodymium magnets. These devices do not require any power supply. The magnetic field is switched on and off by adjusting a manual lever. 
They are used in steel yards, factories, warehouses, workshops and docks. They are also useful for handling sheet metal, plates, profiles, angles, channels, square pipes and other large ferrous components.

All steel components of the FX lifting magnets are nickel-plated, giving them enhanced corrosion resistance. This is a unique feature that applies to all lifting magnets in the FX-VV HOT series.

The actual lifting capacity of each lifters depends on the following factors:

♦ thickness and shape of the workpieces to be lifted

Workpieces that are too thin may be attracted weakly because the magnetic field of the lifting magnets is not fully utilised. In addition, thin workpieces bend and their contact area with the lifters decreases, so that the pulling force decreases. The best lifting performance is obtained for sufficiently thick workpieces. 

Before starting work, it is important to consider the percentage dependence of the lifting capacity as a function of the thickness of the steel to be lifted (lifting capacity curves can be found in the manual).

When handling round parts such as pipes, rods, steel shafts, the maximum load capacity is reduced:

The actual lifting capacity of each lifting magnets also depends on:

♦ the size of the air gap between the lifters surface and the workpiece to be lifted (for each lifting magnets, the capacity characteristics as a function of the size of the non-magnetic gap are given).
                                               

The load capacity depends on the air gap between the lifting magnet surface and the workpiece to be lifted. If the surface roughness of the load Ra is less than 6.3 μm, the capacity will not decrease. This is the case for a very clean, flat and sanded surface. If the surface roughness of the materials to be lifted Ra will be greater than 6.3 μm, the gap between the gripper and the workpiece to be lifted should be taken into account.

For rusty rolled surfaces, a gap in the range (0.1-0.3 mm) can be assumed, while for rough porous surfaces the gap is estimated in the range (0.3-0.5 mm).
Before starting work, refer to the instructions for the percentage relationship of load capacity as a function of non-magnetic gap.

The actual lifting capacity of each lifting magnets also depends on:

♦ The composition of the load to be lifted (the higher the iron content, the higher the lifting capacity):

*) it will be the permissible load for a component made of a given material, if not reduced by other factors (thickness, surface quality, shape).

♦  the ambient temperature and the temperature of the workpiece to be lifted

The FX-VV HOT series lifting magnets are specially designed for use at elevated temperatures. They can be used continuously with lifting workpieces whose temperature is 250^oC . It is also possible to lift workpieces with higher temperatures, but in such cases the operation must not be continuous and there must be breaks in the contact between the lifting magnet and the hot workpiece. Contact with the workpiece, which has a maximum temperature of 300^oC, can last a maximum of 4 minutes, with a minimum cooling time for the lifting magnet. Contact time of the clamp with a 350^oC workpiece should be no more than 1.5 minutes, after which the clamp should be cooled. Working with hot workpieces at 300^oC and 350^oC reduces load capacity by 15 and 25 per cent respectively.

We offer:
 - consulting,
 - service,
 - spare parts,
 - annual inspections and load capacity tests of lifting magnets, confirmed by a certificate.

Magnet for hot components 300 kg