Precision Stamped Metal O-Ring Back-up Ring

Please provide 2D/3D drawings specifying the inner diameter, outer diameter, and cross-sectional dimensions for mold evaluation and quotation. This closed-ring component serves as a rigid support in hydraulic or pneumatic sealing systems, preventing extrusion deformation of rubber O-rings under high pressure. It is widely used in fluid control valves, automotive transmission systems, and engineering machinery seal grooves.

The manufacturing process strictly controls tolerances for inner/outer diameters and cross-sectional thickness uniformity to ensure a tight fit with standard groove dimensions. To address flatness deviations and ovalization risks common in thin-walled ring structures, we utilize high-precision slow-feed wire EDM (e.g., Sodick, Mitsubishi brands) for contour forming, combined with optical grinding to ensure end-face flatness and perpendicularity, effectively resolving consistency challenges in mass production.

Backed by IATF 16949 and ISO 9001 certifications, our production line offers integrated delivery capabilities from material selection to precision forming. We support various metal materials including stainless steel, carbon steel, and copper alloys, with optional surface treatments such as nickel plating and electroless nickel plating to enhance corrosion and wear resistance. Key dimensions are fully inspected using Mitutoyo vision measuring instruments to meet stringent assembly requirements. Quotations are evaluated based on specific 3D drawings, material grades, and expected order volumes.