Double-End Threaded Transition Fitting

As a critical connection node in fluid transmission systems, this component features male threads on both ends and a hexagonal body in the middle. It is commonly used for diameter transition, straight-through connections, or as a blind plug in hydraulic and pneumatic lines. This design provides reliable wrench torque in confined installation spaces, ensuring sealing stability and connection strength under high-pressure or vibrating conditions.

The core of the manufacturing process lies in ensuring high coaxiality of the thread axes at both ends and the perpendicularity of the hexagonal mounting surface to the central axis. This prevents stress concentration or seal failure caused by misalignment during assembly. For such rotational parts, strict control over thread profile integrity, surface finish, and key dimensional tolerances is required. Precision turning using CNC lathes and Swiss-type automatic lathes effectively eliminates cumulative errors from secondary clamping, meeting stringent mechanical connection standards for materials like stainless steel or carbon steel.

Changzhou Senboyu Electric is equipped with Tsugami Swiss-type lathes, Taikan machining centers, and high-precision grinders, supporting multi-process concentrated machining from bar stock to finished products. This is particularly suitable for manufacturing non-standard parts with complex thread features. Combined with inspection tools such as Keyence vision measuring systems, pneumatic gauges, and hardness testers, we strictly screen key outer diameters, pitch, and appearance details. Surface treatments such as passivation, electroless nickel plating, or electroplated nickel are available to enhance corrosion resistance, providing a one-stop solution from single-piece prototyping to batch delivery.