Our Services


*With our 12,500 sq. ft. facility, located in Merrimack, New Hampshire, we can simulate your actual machine conditions. TST Hydraulics is one of a handful of companies in New England that has the full testing capabilities necessary to simulate the required working conditions of a hydraulic pump.* 


Our Service Department will repair most brands of pumps, motors, and valves in our test facilities at speeds of up to 300hp. A 15hp electric test unit is available for setting control valve pressures, steering valves, smaller pumps, and motors. A 40hp electric test facility will be available shortly in order to handle hydraulic motor break ins. At TST, we have the ability to service Denison, Eaton, Kawasaki, Linde, Rexroth, and many other major hydrostatic units. All repairs are backed by our solid reputation for quality workmanship.

TST Hydraulics is a full line distributor for Danfoss (formerly Sauer-Danfoss) and the leading northeast supplier of hydraulic components for the mobile market. When it comes to Permco pumps, TST strives to build their pumps in 24 hours or less, and will be ready for pickup or shipping to any part of the country. Please visit our product page for a full list of hydraulic pumps, motors, and other manufacturers.

TST Hydraulics manufactures Power Units and Test Stands. With our in-house application design team, we have the ability to manufacture custom power units to meet your application requirements. All power units are fabricated in our facility, located in Merrimack, NH. Whether the application is industrial or mobile, we have the capabilities to put your fluid power to work! Custom control panels and electronic controls are available. TST Hydraulics designs systems using the industry’s best components to assure you a quality system with years of trouble-free operation. There is no job too big or too small for TST!