Castor Configuration Guide

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This castor combination guide will give you an insight into the different castor combinations available to us on equipment.

The guide highlights the pro's and con's of each combination and also indicates what weight loading calculation to use. You can find out more about weight load calculations in our guide to load ratings.

2 Swivel Castors and 2 Fixed Castors

Providing good load capacity and manoeuvrability, this combination ensures accurate steering, even on long straight runs, making it the most practical combination for industrial use. Any trolley with this castor combination should be pushed with the fixed castors leading. Maximum capacity for each wheel = load/3

4 Swivel Castors

As this combination gives good load capacity with exceptional manoeuvrability, it is suitable for winding runs and where sideways action is required. It is not recommended for straight runs or ramps, as it may be hard to guide, especially over bumpy terrain and when heavily loaded. However, equipping two castors with directional locks makes this arrangement very versatile and suitable for long straight runs. Maximum capacity for each wheel = load/3

4 Swivel Castors

As this combination gives good load capacity with exceptional manoeuvrability, it is suitable for winding runs and where sideways action is required. It is not recommended for straight runs or ramps, as it may be hard to guide, especially over bumpy terrain and when heavily loaded. However, equipping two castors with directional locks makes this arrangement very versatile and suitable for long straight runs. Maximum capacity for each wheel = load/3

1 Swivel Castor and 2 Fixed Castors

This combination provides an economical solution for lightly loaded trolleys requiring good manoeuvrability. The trolley must be reasonably small in size and load must be evenly distributed to ensure stability. Maximum capacity for each wheel = load/2.5

3  Swivel Castors

This provides good load capacity with excellent manoeuvrability. However, equipment with this arrangement will be difficult to guide on straight runs particularly over uneven ground. Maximum capacity for each wheel = load / 2.5

4 Swivel Castors and 2 Fixed Castors (centrally pivoting)

This combination provides an extremely high load capacity, with great manoeuvrability and stability. This is ideal for very long trolleys designed to carry heavy loads - the fixed castors can be replaced by wheels mounted onto a central axel. The unit’s base must be robust and the swivel castors are mounted to allow the trolley to pivot on the central wheels. Therefore, 25mm of packing is required above the two fixed castors (wheels) to give alternating load support, depending on which pair of wheels is in contact with the floor. The entire load rests on 2 central, fixed castors / wheels. PLEASE NOTE: The swivel castors are subjected to shock loads if the trolley is tipped or the load is not evenly distributed. Maximum capacity for each wheel = load/2

2 Swivel Castors and 2 Fixed Castors

Ideal for confined spaces, this configuration provides good load capacity with excellent manoeuvrability. The fixed castor can be replaced by wheels which pivot the trolley centrally. In this case, 25mm of the packing is necessary above the two fixed castors (wheels) to give alternating load support. However, if the trolley is tipped or the load is not evenly distributed, the swivel castors are subjected to shock loads. The entire load rests on the 2 central, fixed castors / wheels. Maximum capacity for each wheel = load/2

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