How to identify the quality of the piston ring?
The working surface of the piston ring shall not be scratched, scratched or peeled off, and the outer cylindrical surface and the upper and lower end surfaces shall be-Set finish, curvature deviation should not be greater than 0. 02-0. 04mm, the standard sinking amount of the ring in the groove shall not exceed 0. 15-0. 25mm, the elastic force and clearance of the piston ring conform to the regulations. In addition, the leakage light of the piston ring should also be checked, I . e. the piston ring should be placed flat in the cylinder, a small lamp gun should be placed under the piston ring, and a light shielding plate should be placed on it, then observe the light leakage gap between the piston ring and the cylinder wall, thus knowing whether the contact between the piston ring and the cylinder wall is good. Under normal circumstances, the light leakage seam of piston ring measured with thickness gauge should not exceed 0. 03mm. The length of continuous light leakage joint should not be greater than 1/3 of the diameter of the cylinder, the length of several light leakage gaps should not be greater than 1/3 of the diameter of the cylinder, and the total length of several light leakage joints should not exceed 1/2 of the diameter of the cylinder, otherwise, it should be replaced. Piston ring mark GB/T 1149. 1- 94 regulations: all piston rings requiring installation direction shall be marked on the upper side, I . e. near the side of the combustion chamber. The ring marked on the upper side includes: conical surface ring, inner chamfer, outer cutting table ring, nose ring, wedge ring and oil ring requiring installation direction. The upper side of the ring is marked.
GUANGZHOU HEARTEN AUTO PARTS CO,LTD. who is highly knowledgeable about manufacturing as well as selling and confident in our ability to create finest products as custom piston rings standard piston ring company.
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A technology team created for insuring that custom piston rings is produced with the finest materials and technologies.
If our brand is successful and consistent, it will be much easier to initially grab customers and encourage them to purchase custom piston rings further.
In terms of custom piston rings, why is it different than other production? How does it fit a true need or desire for your requires? Is it simple to use? Make life easier?
Our PVD Ion Plating Piston Ring is manufactured with advanced multi-arc ion plating technology under high vacuum conditions. Stable arc discharge between cathode and anode generates high-energy plasma, which deposits dense, uniform coatings such as TiN, CrN, ZrN onto the piston ring surface under workpiece bias voltage.
With excellent adhesion and high bonding strength, the coating stays firm without peeling. Hardness reaches 1800–2500 HV, 4–6 times higher than base materials, recognized as a super-hard coating. Friction coefficient is 0.4, delivering 10× improved wear resistance and outstanding corrosion resistance. Ideal for heavy-load engines, construction machinery and commercial vehicles, it greatly extends service life and reduces maintenance costs.
Backed by professional PVD coating equipment and strict quality control, Hearten Auto Parts upholds Precision Craftsmanship, Technological Leadership to provide reliable high end piston ring solutions.
Our Ceramic Titanium Piston Ring uses cutting-edge nano ceramic coating and multi-arc ion plating process. In a high vacuum environment, high-energy plasma reacts and deposits uniformly to form high-performance coatings like TiN, TiC, ZrN, ensuring strong bonding with the substrate.
It features ultra-strong adhesion and high compactness. Hardness reaches 2200–2500 HV, 3–12 times higher than raw materials, classified as a super-hard coating. With friction coefficient 0.4, wear resistance is improved by 150 times, providing outstanding durability under extreme working conditions. The high-density coating also delivers superior corrosion resistance and stable low-friction performance.
Designed for high-performance engines and heavy-duty machinery, our ceramic titanium piston rings combine advanced technology with strict quality control, fully embodying Precision Craftsmanship, Technological Leadership.
Our CKS (CID) Piston Ring adopts upgraded Chromium-based Composite Ceramic technology, an industry breakthrough that meets Euro IV emission standards and delivers double the wear resistance of conventional chrome plating.
The process forms uniform mesh textures inside the outer chrome layer, filled with wear resistant particles to enhance anti-friction performance. The mesh structure also provides excellent oil storage capacity, effectively lowering friction and protecting cylinder liners. The ring body is strengthened by nitriding treatment, boosting hardness, strength and impact resistance.
The bad piston ring may be related to the air leakage caused by its wear or coke connection with the piston ring groove. If after cutting off a cylinder, the exhaust gas no longer from the oil or vent vent, the cylinder piston is not good use.
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