These fixed fabricated castors are part of our extra heavy duty range, as they can carry 2.8 tonnes each, and combine 4 to carry over 8 tonnes. With Twin heavy duty 300mm polyurethane wheels, that have cast iron centres making these castors extra durable and extremely strong. Ideal as gantry castors, crane castors and for extreme applications where you require 8 ton castors 300mm Fixed Heavy Duty Fabricated Castor Polyurethane Twin Wheel 2800kg