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Castor Mountings
 

3 Swivel Castors
Maximum manouvreability
Make sure castor load is divided over 3 castors rather than the normal 4

4 Swivel Castors
Maximum manouvreability in confined spaces
Can be moved at right angles
Difficult to control on long runs

2 Swivel Castors and 2 Fixed Castors
Most practical
Inexpensive
Good for straight or long distances
Limited manouvreability in confined spaces

Tilt Mount Rocking Type 2 Fixed Wheels and 2 Swivel Castors
Good manouvreability
Accurate steering
Cannot negotiate ramps

4 Swivel Castors and 2 Fixed Castors
Level mounting design for heavy loads
Very stable
Best for long wheelbases and straight lines