Datong Hydraulic

  Hydraulic cylinders work by using hydraulic fluid (usually oil) to create pressure.  There is a  cylinder rod  which is connected to a piston.  This moves back and forth inside a  cylinder barrel .  One end of the barrel is capped (closed).  The other end of the barrel has the cylinder head or gland.  The piston rod will come out of the cylinder through here.   The piston rod material  42CrMo4 cylinder rod  with the material number 1.7225 is suitable for high-dynamic applications. Due to the material's high stability very high forces can be transmitted, e.g. for small connecting threads with large piston rods. Hard chrome plating means that an especially thick chrome layer is applied after the pre-honing and before finishing the honing process. The layer thickness depends on the rod diameter and has a hardness of more than 800 HV. Hard chrome plated piston rods can be used between -15°C and 200°C.

  A  telescopic hydraulic cylinder  can be used in several types of applications that require a linear force to be applied over a long distance. While a rod cylinder could potentially perform the job it may be too long when fully collapsed, where as a telescopic cylinder will typically be significantly shorter when in the same position. The collapsed package size plus long stroke capability of a telescopic cylinder is one of the advantages the design offers over a rod cylinder. Rod cylinders will apply the same force throughout their stroke, assuming that system pressure remains constant. While it is possible to design a telescopic cylinder that applies a constant force, the cost is significantly increased. Generally a  telescopic cylinder  will be used in applications where a constant force is not required. Both single acting and double acting telescopic cylinders are used in non-constant force applications. The most common of these in mobile applications are dump trucks and refuse ve