Hydraulic cylinders convert hydrostatic energy into mechanical energy. They are considered as motors or as actuators capable of producing work. Hydraulic cylinders differ from hydraulic motors, however, as cylinders carry out a linear (translatory) movement instead of a rotary movement. The force F in Newton of a hydraulic cylinder is directly related to the maximum operating pressure p in bar and the effective area of the piston A in square centimeters.
The effective area of a cylinder is the difference between the area of the piston and the piston rod of the hydraulic cylinder. At constant pressure, a cylinder with a larger effective area will produce a larger force. As explained above hydraulic cylinders are also referred to as linear motors. For hydraulic motors a similar mathematical relation exists to calculate the torque of the motor based on the maximum operating pressure and displacement.
In hydraulic cylinders, two functional types can be distinguished: double-acting and single-acting cylinders. Single-acting cylinders have one effective area, located on the bottom side, which can exert force in one direction only. The single or double-acting differential cylinder is generally used in mobile and industrial hydraulic systems. The most common design principles of the hydraulic differential cylinder are tie rod, mill type and roundline cylinder design.
Standards include DIN, ISO, ANSI and NFPA. Tie rod cylinders are used in machine tools and manufacturing devices because of the space-saving compact design.
Roundline are well known for their robustness and fatigue free operation at maximum pressure. It is actually a heavy duty mill type cylinder concept.
Custom hydraulic cylinders are designed and build to fit your requirements seamlessly. Choose from a custom hydraulic cylinder or servo cylinder systems.
Hydraulic cylinder spare parts include piston seals and gland cartridge kit complete with seals. Accessories for cylinders are brackets and alignment couplers.
DTA is serving your industry with the supply of hydraulic parts and hydraulic components for more than 25 years. Since 2010 we have been fully qualified and certified as distributor hydraulics by Parker Hannifin. Together we developed a rapid delivery program for the genuine Denison Hydraulics single and multiple vane pumps. We support industrial and mobile applications and hold a considerable inventory of genuine parts, components and sub-assemblies.
Vane pumps and genuine spare parts in stock; over 25,000 configurations listed in our online pump catalogue!
Currently we can supply over 20,000 pump configurations from stock. All the hydraulic parts and components that we supply are new and genuinely manufactured by the high quality hydraulic manufacturer of your choosing. DTA can be your one-stop-shop and supplies high-quality brands only such as Parker Hannifin (Denison Hydraulics, Olaer, Calzoni, VOAC, Sterling Hydraulics), Bosch Rexroth (Brüninghaus, Eppensteiner, Hägglunds, Hydromatik, Oil-Control), Bucher Hydraulics, Moog, STAR Hydraulics, Hydac and Eaton (Char-Lynn, Eaton Hydraulics, Integrated Hydraulics, Vickers).