Wuxi YUTONG

  Chrome plating is used to provide a very high degree of hardness on the surface of a  cylinder piston rod  to enhance wear resistance,reduce friction,provide anti-galling properties, and in some cases, improve corrosion resistance. Chrome plating is an electrolytic process that can be applied to regular steel cylinder rod, stainless steel cylinder rod  and other materials. For cylinder rods, leading  hydraulic cylinder  parts manufacturer , Wuxi YUTONG  can make chrome thickness of min 20/25/30/50 Micron or customized. the surface hardness attaining HV850 minimal and upward, which not only help improve wear resistance but also help extend the life span of these  chrome plated rods , thereby helping the consumer save the cost. Our chrome plated rod are manufactured with high dimension precision, tolerance can be ISO f7, f8 or g6, upon request. Which ensures the precision of the hydraulic cylinder or the machine.

  Most of the hydraulic cylinder is composed of a cylinder, cylinder head, piston and  piston rod  and sealing device. The comprehensive performance of the cylinder such as pressure resistance, wear-resistance and fatigue strength, determines the service life of the hydraulic cylinder. The cylinder is usually required to withstand pressure within 20Mpa (continuous pressure), and the application of mixing and pressure can even reach 55Mpa. General hydraulic cylinder made of carbon steel or low alloy   cold-drawn steel tube , such as ST52 E355, which treated by usually used to stress annealing. The heat treatment depends on the performance of the steel after cold working conditions of the hydraulic cylinder in actual production are mostly use the following heat treatment process for processing. Stress relief annealing adopts a heat treatment process lower than the heating temperature of recrystallization, which aims to eliminate the residual stress in the steel tube ca...

  Stainless steel hydraulic cylinders are used in applications where corrosion resistance is the utmost priority with   stainless steel cylinder tube   and   piston rods . Standard cylinders are made from combinations of alloy steel, such as 1020,   1045   and   4140 , which are all susceptible to oxidation and rust in humid or wet applications. Even when epoxy painted, carbon steel cylinders exposed to surface abrasion, dents or harsh chemicals can wear away any paint, leaving exposed steel to corrode. Marine environments often require the usage of stainless steel cylinders, both onshore and offshore. Saltwater is especially damaging to standard alloy steel, which will rust rapidly when exposed to saline. Maritime cylinders used for cranes, boat lifts, davits or other machinery do well when made from stainless steel alloys. Offshore oil rigs are especially prone to aqueous corrosion, and although special construction and coatings can mitigate some oxi...

  Honed ID Tubing   also called   honed cylinder tube   or honed cylinder barrel.The honing process involves using abrasive polishing stones and abrasive paper to remove small amounts of material, to produce extremely precise ID dimensions and improved finishes. Honed tubing is ready to use for hydraulic cylinder applications without further ID processing. Honed ID cylinder tube processing: Raw Materia - Acid cleaning - Parkerizing -  Cold-drawn  - stress relieving - leveling - Saw off reject parts - Honing - Anti oil coating - Packing. Material : E355 ST52,CK45,4140,4130,4340, SCM440, 42CrMo4 ,40CrMo,34CrMo4,35Cmo, ,SS304/316,Duplex 2205,etc. Delivery Condition : BK, BK+S, GBK, NBK Type : Seamless, Hot Rolled, Cold Rolled, Cold Drawn Roughness : 0.2-0.4 u Tolerance EXT : DIN2391, EN10305, GB/T 1619 Tolerance INT : H7,H8,H9

  Induction hardening  is a non-contact process used for the surface hardening of steel and other alloys. The parts to be treated are placed inside a copper coil and heated above their transformation temperature by applying an alternating current to the coil. The   cylinder rod   is then quenched to retain the enhanced properties of the steel alloy. During this process, the   induction hardened chrome rod   core remains unaffected and its physical properties remain the same. CK45 is a medium tensile carbon steel supplied in the turned, induction hardened and straightened, precision ground, polished, chrome plated and final polished condition, with a typical base metal tensile strength of 670 Mpa, an induction hardened case of 3.2mm thick approx. to Rc55-65, plus a typical hard chrome plated surface hardness of HV 1000 - 1150.Characterised by an extremely smooth surface finish with excellent wear and corrosion resistance, supported by an induction harde...