Profile: John King Chains Ltd. specializes in the supply of conveyor chains and mechanical handling equipments. Acetal case chains standard links are molded from acetal engineering plastic offering optimum mechanical properties in materials handling. The material offers a unique combination of properties, high tensile strength, dynamic fatigue strength, unique resilience and practical impact strength with a low co-efficiency of friction. (0.15 against metals compared to 0.8 for steel/steel) In operation chains are quiet, rugged and virtually maintenance free (no need for lubrication) light in weight and low on energy requirements. They offer hygiene advantage and good chemical resistance with minimal moisture absorption.