Classification of wheels and castors
Light duty, transport equipment and heavy duty castors
International standards divide wheels and castors into the following categories:
- light-duty wheels and castors
- wheels and castors for transport equipment
- heavy-duty wheels and castors
Each of these are used for different applications and are subject to different test conditions.
Blickle light-duty wheels and castors
Blickle wheels and castors for transport equipment
Blickle heavy-duty wheels and castors
Light-duty wheels and castors and compact castors
are normally used indoors. They are designed
to handle speeds of up to 3 km/h. They have a
load capacity of up to 280 kg (light-duty wheels
and castors) or 1,750 kg (compact castors).
They maximise manouevrability and smooth rolling
performance while reducing rolling resistance.
They are typically used for medical equipment,
display stands, industrial kitchen equipment and
similar applications.
The load capacity of Blickle light-duty wheels
and castors and compact castors is tested on a
rotating bench in accordance with DIN EN 12530
/ ISO 22881
The main test conditions:
- speed: 3 km/h
- temperature: +15 °C to +28 °C
- hard, horizontal surface with obstacles with a height equal to 3 % of the wheel diameter
- test duration: the number of times that obstacles are crossed is equivalent to ten times the wheel diameter (in millimeters)
- rest time: max. 3 minutes after 3 minutes running time
Wheels and castors for transport equipment are
used for indoor and outdoor industrial applications.
They are designed to handle speeds of up to 4
km/h.
They have a load capacity of up to 1,000 kg.
Wheels and castors for transport equipment
are resistant to environmental factors, largely
maintenance-free and capable of functioning
properly for long periods.
They are typically used for machinery and equipment
of all kinds, in addition to pallets, scaffolding,
waste containers and the like.
The load capacity of Blickle wheels and castors for
transport equipment is tested on a rotating bench
in accordance with DIN EN 12532 / ISO 22883.
The main test conditions:
- speed: 4 km/h
- temperature: +15 °C to +28 °C
- hard, horizontal surface with obstacles at the following height:
5 % of wheel diameter for wheels with soft tread (hardness < 90 Shore A)
2.5 % of wheel diameter for wheels with hard tread (hardness ≥ 90 Shore A) - test duration: 15,000 revolutions with a minimum of 500 crossing obstacles
- rest time: max. 1 minute after 3 minutes running time
Heavy-duty wheels and castors are used to handle
heavy loads and / or high speeds.
They are particularly strong in their design.
Castors with two wheels (twin wheel castors)
are also used in this area to handle particularly
heavy loads. Spring-loaded castors are particularly
suitable when there is a need to avoid vibration
during transport.
They are typically used on forklift trucks and
industrial trucks, assembly and transport systems
and similar equipment.
The load capacity of Blickle heavy-duty wheels
and castors is tested on a rotating bench at a
speed of 4 km/h in accordance with DIN EN 12532 /
ISO 22883. Wheels and castors designed for
higher speeds are tested for load capacity in
accordance with DIN EN 12533 / ISO 22884.
The main test conditions according to DIN EN 12532 / ISO 22883:
- speed: 4 km/h
- temperature: +15 °C to +28 °C
- hard, horizontal surface with obstacles at the following height:
5 % of wheel diameter for wheels with soft tread (hardness < 90 Shore A)
2.5 % of wheel diameter for wheels with hard tread (hardness ≥ 90 Shore A) - test duration: 15,000 revolutions with a minimum of 500 crossing obstacles
- rest time: max. 1 minute after 3 minutes running time
The main test conditions according to DIN EN 12533 / ISO 22884:
- speed: 6 km/h, 10 km/h, 16 km/h, 25 km/h (standard: max. 16 km/h)
- temperature: +15 °C to +28 °C
- hard, horizontal surface with obstacles at the following height:
5 % of wheel diameter for wheels with soft tread (hardness < 90 Shore A)
2.5 % of wheel diameter for wheels with hard tread (hardness ≥ 90 Shore A) - test duration: the number of times that obstacles are crossed is equal to five times the wheel diameter (in millimeters)
- rest time: max. 1 minute after 3 minutes running time