1. With over 150 years of experience, SLM is one of the leading designers and manufacturers of marine deck equipment, dock equipment, mining equipment, and car pullers. While our standard offerings give a wide variety of options and assemblies to accomplish your goals, we also specialize in custom design, manufacturing, and testing of any type of winch or hoist equipment. Our typical products include: Winches, Capstans, Hoists, Carpullers, Barge Haul Systems, and In-Haul Systems. Remember, when you buy SLM equipment, you are buying equipment that is “Built to Last”.