Challenge leaf chains are produced to exacting specifications to achieve the optimum combinations of fatigue strength and wear resistance. These chains comply with ANSI standards in types BL (Heavy duty), AL (light duty), EL and FLC.
Where applicable the ISO equivalents are given
Produced from carbon or alloy steel, specially selected to withstand sudden shock loads. Plates are heat treated to ensure maximum breakage resistance.
Pins are manufactured from heat-treated alloy steel with excellent bending resistance. This results in increased wear life for the chain