Stepped Shaft for Mold Nitrogen Gas Spring

As a core load-bearing and guiding component of mold nitrogen gas springs, this stepped shaft features a multi-stage rotary structure with cylindrical sections of varying diameters and precision mating surfaces. Designed for high-frequency reciprocating motion, it offers excellent wear resistance and fatigue strength. It is widely used in automotive stamping dies, injection molds, and various automated machinery to provide stable elastic force or precise positioning.

Manufacturing relies on high-precision CNC lathes, strictly controlling the coaxiality of each step's outer diameter, end-face perpendicularity, and surface roughness of key mating areas. For high-strength materials like bearing steel or alloy steel, cutting parameters are optimized during turning to eliminate internal stress and ensure dimensional stability. If required by drawings, external cylindrical grinding can further improve mating precision to the 0.01-0.02mm level, ensuring smooth, jam-free operation after assembly.

Equipped with multiple branded CNC lathes and slant-bed lathes, along with CMMs and hardness testers, our factory ensures a strict quality closed-loop from single-piece prototyping to mass production. We support non-standard customization based on customer drawings, covering material selection, heat treatment recommendations, and surface treatment options. Our products are interchangeable with mainstream brand nitrogen gas spring accessories, meeting agile delivery needs for high-mix, low-volume orders.