SmithCo Develops Kingpin Housing for Side-Dump Trailers

SmithCo Inc. has created a new kingpin housing designed for its side-dump trailers aimed at enhancing durability and cutting maintenance costs. Traditional kingpin options either require frequent replacement or involve labor-intensive welding processes, which prompted SmithCo to devise a solution that addresses customer concerns regarding longevity. The innovative collet-chuck style kingpin housing offers a secure fit that minimizes movement while eliminating the need for welding to the fifth-wheel plate. Thorough testing at Iowa State University validated the design, demonstrating that it could withstand 500,000 loaded cycles without exhibiting any signs of wear or loosening. This reflects a significant advancement in trailer coupling technology, promising increased reliability for operators in demanding conditions. SmithCo plans to integrate this new kingpin as standard equipment in all its over-the-road side-dump trailers starting in 2025, reinforcing its commitment to service various sectors, including construction and agriculture. Expert opinion suggests that this development is a notable step forward in trailer coupling design, as it not only extends the lifecycle of critical components but also may lead to reduced operational downtime for fleet operators. By prioritizing durability and ease of maintenance, manufacturers like SmithCo are responding effectively to market demands, which ultimately benefits the entire transportation industry through improved efficiency and cost-effectiveness.