HDM Hydraulics is an ISO-certified custom manufacturer of welded body hydraulic rods and telescopic cylinders servicing the mobile industry. We are in Tonawanda, New York, and ship our product anywhere within the USA & Canada. Our full-service engineering allows us to manufacture your design, or we can create a plan that fully meets your application requirements. HDM was founded in 1979 and was acquired by Ligon Industries, LLC, in October 2003. Ligon is a private holding company with a mission to be the supplier of choice in the OEM hydraulic cylinder markets. About Us History HDM employees are the heart and soul of the company. Our future depends on the skill and dedication of every person employed. Our companys continued success is the direct result of each persons initiative, professional development, and commitment to the HDM team. Through internal contributions, we achieve our corporate vision.