Hard Knox Mechanical Service

RW McCollum specializes in the sales and service of both new and used petroleum, dry bulk, stainless steel, and LP tank trailers. We are authorized distributors in the states of North Carolina, South Carolina, Virginia, as well as a few designated areas in West Virginia for the following tank trailer manufacturers: RW McCollum has over 55 years of experience in the sales and service of petroleum tank trucks and LP bobtails. We are an authorized distributor for Amthor International, the leader in the straight truckindustry for petroleum tank trucks, LP bobtails, and Vac trucks. Service & Repairs RW McCollum has an ASME certified, full service 12-bay facility, as well as an outside bay and surrounding area designated for LP inspections and repairs. Our three lead welders, head mechanic, and shop foreman have a combined experience of over 120 years in the business!We perform all DOT inspections ( V, K, I, P, UC, Federal, and others ) for all petroleum, LP and chemical tank trailers as well as all petroleum tank trucks and LP bobtails. We provide full-scale meter service, calibrations, and sales as we are one of the oldest Liquid Controls distributors in the Southeast. RW McCollum stocks and regularly distributes a wide range of parts for petroleum tank trailers & tank trucks, stainless tank trailers, vaccum tank trailers & tank trucks, and LP tank trailers and bobtails.