When it comes to the heavy equipment industry, durability isn’t just a preference — it’s a requirement. Whether you’re manufacturing construction machinery, mining equipment, or agricultural implements, your components need to stand up to extreme conditions, repetitive stress, and years of performance. That’s where Marmon Keystone steps in.
As a leading supplier of carbon, alloy, and stainless steel tubular products, Marmon Keystone offers an extensive inventory and value-added services engineered for the heavy equipment market. Our broad product range includes mechanical tubing, structural tubing, hydraulic tubing, and precision-cut components, all tailored to meet the rigorous demands of heavy equipment manufacturers.
From boom arms and hydraulic cylinders to undercarriage frames and lifting structures, we supply the material backbone that supports some of the world’s most powerful machines. Our carbon mechanical tubing and DOM (Drawn Over Mandrel) tubing are commonly used in the fabrication of structural parts and pivot points, offering strength and consistent dimensional tolerances. Alloy tubing provides enhanced fatigue resistance and performance under high-pressure conditions — a must for hydraulic assemblies and drive systems in heavy machinery.
At Marmon Keystone, we know the heavy equipment industry depends on more than raw material availability. Our value-added services — including precision cutting, end finishing, deburring, and just-in-time delivery — help streamline your production schedules, reduce waste, and eliminate downtime. Whether you’re ramping up for a new model release or need short-run orders to meet urgent demand, our strategically located service centers are equipped to respond quickly and efficiently.
By leveraging a national footprint and decades of supply chain experience, Marmon Keystone provides consistent quality, reliable delivery, and deep inventory access, so you can stay focused on what you do best — building tough, hardworking equipment for the world’s most demanding industries.