Hydraulic cylinder
40 - 250 mm ø, DIN 2391 | CNA series KRACHT

Hydraulic cylinders in the CNA Series are constructed with threaded piston rod ends. The cylinder heads and bases are made from Steel 52-3. The cylinders themselves are made from seamless precision steel tube acc. to DIN 2391 and for the ground finished, hard chromed piston rods a
high strength steel is used. The pistons and the piston rods incorporate compact seals. The piston rods can be provided with sealing cover sleeves and the cylinders can be supplied complete with FKM seals, to suit operating conditions. CNA hydraulic cylinders have venting screws at both ends, as standard. lf the operating conditions demand it, all sizes of cylinder can also be equipped with adjustable damping at both ends of the stroke. CNA hydraulic cylinders are available with the following
features: Double-acting with the piston rod on one side (the so-called differential cylinder), or with piston rods on both sides. lf the piston rod returns, under the action of external forces, e. g. due to it's own weight, or return spring pressure, the differential cylinder can also be used as a single - acting push or pull cylinder, or as a plunger cylinder, i. e. compression cylinder with through-bored piston. A variation of function is achieved when differential cylinders with the same volumetric stroke are
coupled together one behind the other as a so - called synchronised or ganged combination. When installing the cylinder, care should be taken that no radial forces act on the piston rod, otherwise the resulting stresses can quickly lead to failure of the cylinder. Bolts to quality class 8.8 or 10.9 should be used for the attachment of the cylinder.