HOW TO SELECT CASTORS AND WHEELS
To identify the castor and wheel best suited to your needs, simply answer these six questions.
|Question 1: Which category most closely matches the intended use?|
|Some Typical uses||Max Load kg/castor|
|Super||Maintenance platforms and trolleys, cargo trolleys, mobile lifting equipment||2000-10,000|
|Extra Heavy Industrial||500-1400|
|Heavy Industrial||Heavy duty trolleys, heavier mobile equipment, waste bins||250-1400|
|Industrial||Heavy bakery trolleys, engine stands, heavy laundry trolleys, lighter trolleys used frequently or outdoors||110-700|
|Towing||Equipment moved at speeds exceeding 5km/h||80-10,000|
|Medium Industrial||Medium trolleys, bakery ovens racks, larger display stands, laundry trolleys, equipment racks||45-400|
|Institutional||Hopital beds and furniture, office equipment, serving trolleys, computer equipment and displays stands||75-125|
|Question 2: What tyre material best suits your application?|
|Shock Absorbency||Capacity||Push Effort||Floor Protection||Durability||Typical Surfaces|
|Grey Rubber||Quality flooring, quiet / clean areas|
|Blue Rubber||Quality flooring, small obstructions|
|Black Rubber||Industrial areas, concrete|
|Lemcolite||Abrasive, industrial floors|
|Pneumatic||Outdoors, irregular or unsealed|
|Cast Iron||Oven floors, outdoors or unsealed, broken glass etc.|
Note: If chemical resistance is an important factor, check table on page 53 For more details see Page 23
|Question 3: What Load must each castor carry?|
|Under ideal conditions the load is equally shared by all castors.
However for uneven floors use the actual number of castors less one for calculation purposes.
Max Load: 420kg
Max Load + Weight of Trolley
No of Castors -1
|Load Capacity =||420 +105
4 – 1
|Question 4: How big should the wheels be?|
|The Larger the wheel, the easier it rolls.|
|Diameter||Usage Frequency||Load||Speed||Distance||Floor Condition|
Irregular large obstructions
Note: In situations where equipment operating space is limited, for example where there is low overhead clearance the overall height and swivel radius of the castor will become important selection criteria.
Note: Wider wheels are harder to push but can carry heavier loads.
|Question 5: To what will the castors be attached?|
|There are 2 general types of castor frame|
|Plate mounted||Attaches directly to the underside of your trolley via a number of fixing bolts.
Available in both fixed and swivel castor types.
|Bolt Hole||Allow mounting with a single bolt or fitting to round or square tubing with optional pintles.|
Note: The overall durability of the castor frame depends largely on its construction. See table on page 52
Note: For details on castor mounting arrangements see page 53
|Question 6: Do the castors need brakes?|
|Brake Mechanisms can be added to most Lemcol Castors.|
|Wheel Brake||H||Prevents the wheel rotating|
|Directional Lock||K||Allow a swivel castor to be fixed in a given direction
This lock does not stop the wheel rotating
|Total Lock brake||L||Locks the wheel and the swivel mechanism for total security|
|Key to symbols|