Description: Fully assembled double-acting hydraulic piston, excellent quality and resistance, made in Italy. Hydraulic cylinders differ in their effect which can be Simple or Double: Single Effect: The hydraulic piston is connected to the hydraulic power unit by a single pipe, with the Single Effect the lifting occurs via oil pressure inside the circuit, while for the descent phase a spring present in the hydraulic cylinder or simply the gravitational force is used. Double effect: The hydraulic piston is connected to the hydraulic power unit by two pipes, with the Double Effect mechanism the user will be able to manage both the lifting and closing phase, maintaining total control of the vehicle he is using. How to choose the Hydraulic Piston: To choose the hydraulic piston that best suits your needs, it is necessary to evaluate the bore value, as it is this value that determines the strength of the hydraulic cylinder. The minimum length and stroke are necessary in order to choose the hydraulic piston that guarantees correct performance during lifting and return to position. How the Hydraulic Piston works: The Hydraulic Piston or Hydraulic Cylinder is composed of two parts, a cylinder and a piston, the latter also called Stem. The piston, activated by a pump that pushes the hydraulic oil, flows inside the cylinder thus generating the lifting effect through the partial exit of the rod from the hydraulic cylinder. The stroke obviously determines the maximum length that can be reached during the lifting phase. The connections present at the ends of the hydraulic cylinder are necessary to connect it to the machinery it will move. Hydraulic Cylinders are also incorrectly defined as Hydraulic Jacks, although this definition refers exclusively to the lifting jacks used to lift vehicles in the event of tire changes. Application categories: Universal Technical Characteristics Hydraulic cylinder: Min length: 274 mm Bore: 40mm Stem: 20mm Stroke: 100 mm Lifting: 3920 kg Thread: 1/4 Gas Pressure: 200 Bar Maximum speed: 20 m/min Operating temperature: -25°/+80° C_x000D_Race 100 mm Attack thread 1/4 Scope 3920 kg Pressure 200 Bars Piston length 274 mm Cylinder bore 40 mm Cylinder rod 20 mm