Anbao Hydraulic

  42CrMo4 chrome plated bar is manufactured from low-alloy chromium-molybdenum steel and supported by an induction hardened case offering greater strength and resistance to mechanical damage from external impact. It is used in applications requiring greater yield strength in combination with greater surface impact resistance. The piston rod material 42CrMo4 hardened and hard chrome plated with the material number 1.7225 is suitable for heavy use and is especially wear-resistant thanks to its hardened surface layer with a surface hardness of 56–64 HRC. 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. Applica

  4140 chrome plated steel bar , which is a specific type of   hard chrome rod , because the material is 4140 steel, so this kind of hard chrome rod is called 4140 chrome plated steel bar. The familiarity and understanding of this product is to use the product correctly and reasonably, and further, it can have a good use effect on the use of the product. 4140 chrome plated steel bar, the product quality should meet the requirements, the specific is: the use of quality and good performance materials for manufacturing to ensure that the product has good performance and use. The product should be simple and convenient to use, and it is not easy to cause problems during use, and it is not easy to be damaged or damaged, so as to avoid frequent replacement of new ones and increase cost. The product should have a long service life over its service life. Advantages Of Our 4140 Hard Chrome Bars Precision material parts strictly according to customer&request drawing,packing and quality reque

  Induction hardened piston rod after high-frequency quenching treatment, after mirror polishing, hardness can reach HRC58-62, compared with ordinary rod, has better corrosion resistance and wear resistance.High frequency quenching is mostly used for surface quenching of metal parts. The metal surface generates a certain current, quickly heats the metal surface, and then quickly quenches the heat treatment method. The principle of piston rod high frequency quenching: the piston cylinder is placed in the hollow copper tube wound into the inductor, through the high frequency alternating current, the induction current of the same frequency is formed on the surface of the piston rod, so that the piston rod surface or local rapid heating, but the temperature in a few seconds to 800-1000 degrees Celsius, the center is still the normal temperature.Several seconds after the rapid cooling or oil injection cooling, quenching work, so that the piston rod surface or local to meet the correspondi

 There are some manufacturers of hydraulic cylinders that make the full scope of all types of cylinders and all types of accessories for hydraulic systems. We believe in quality and efficiency, so we specialize in the custom manufacturing of welded hydraulic cylinders. Of course, we make a full line of welded units including telescopic cylinders, but the vast majority of our efforts are focused on single and double acting welded cylinders. Why Welded? We believe in welded cylinders because of the many technical advantages. Are they harder to manufacture? Sure, but as we mentioned above, we manufacture for quality, not quantity. Tie rod style cylinders are much faster to assemble. An unskilled technician can assemble tie-rod cylinders with little training whereas a welded cylinder requires a skilled welder to complete. Our highly skilled technicians set Southern Hydraulic units apart from the pack. A welded cylinder has a much longer service life than a tie-rod cylinder. Tie rods wi

 When the specific pressure in service is very high or there is a risk to damage the chromium plated surface by shocks or abrasions, it is advisable to use the induction hardened chrome plated bar . In this case the chromium overlay receives a better support by the hardened base material and is, therefore, less delicate. For the piston rod of a hydraulic cylinder, a hardness of 54-55 HRC (HV 577-613) for the surface lying under the chromium overlay is enough. These hardness values are reachable with steel grades like UNI C43 or DIN Ck45. In case of very high specific pressure as the one met with ball bearing systems like Ball Bushing, it is necessary that the hardness reaches 60 HRC (HV 697). In this case a steel grade like SAE4140, which gives HV 700-750, has to be chosen. For rods subjected to high mechanical stresses and for which the impact strength is important, the quenched and tempered steel grade 42CrMo4 (SAE 4140) induction hardened, is requested. 4140 induction hardened chr