The floor conditions influence the decision regarding which castors to choose. The basic principle is – for hard floors, use soft castors, and, conversely, for soft floors use hard castors.
The right castors for company offices and outside areas
In industrial environments, the floors are not always as smooth and even as in residential and office areas. Castors in these settings often have to run on uneven or rough surfaces. This places higher demands on the treads. There are also other special requirements that must be taken into account. Thus, the wheels and castors must not cause any indentations in the floor and the material must be resistant to chemicals, heat, ageing and much more.
Suitable wheels for smooth and even floors are those made of polyamide or polyurethane, being low-noise, kind to floors and with low rolling resistance. For rough but flat floors, on the other hand, cast-iron wheels with a PUR tread can be used, for example. Another option would be a polyamide wheel centre with a polyurethane tyre. Wheels such as these are extremely wear and abrasion resistant and simultaneously smooth running.
If the ground is smooth but uneven, pneumatic tyres are recommended. These can overcome minor obstacles and are shock-absorbing. It must always be ensured that the wheels have the correct air pressure so that the tyre surface is not destroyed.
For operating areas with a rough and uneven floor, as well as outside areas, cast iron wheels or wheels with an elastic-rubber tread surfaces are ideal. Cast iron wheels are extremely impact resistant and are therefore suitable for exacting load requirements. They have a very long service life and low wear on the tread. The elastic rubber wheels have a hard rubber core with a soft tread and run very easily. They have a low rolling resistance.
Other factors in the selection of castors
In addition to the actual state of the floor, other factors must be taken into account. These include electrical conductivity. In some applications, the castors must be electrically conductive or antistatic to prevent potentially dangerous electrostatic discharges. Also, black wheels may leave marks on light-coloured surfaces. To prevent this from happening, non-marking wheels can be used.
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