HSI has been building high quality, custom hydraulic cylinders for 41 years. Growing at the same location and under the same management since 1976, we have the experience to build the reliable and heavy duty cylinders you need, no matter the application. Our facility has been built to handle and machine heavy parts and long rods and tubes. Our experienced engineering department knows how to work with you on your custom needs, whether you have a drawing ready for us to build off of or whether you need to build from the ground up for your specific need. Our average employee has a 15-year tenure working at HSI. Put our expertise to work for you.