In high-pressure gas systems, thread quality is not a minor detail—it is a critical interface between safety and failure.

At Chunhe, threading is not handled as a generic process. We operate dedicated threading machines specifically designed for cylinder valve inlet and outlet machining. These machines are purpose-built to maintain consistent pitch, angle, and depth across large batches, ensuring compatibility with international thread standards and minimizing sealing failures in the field.

Why Threading Deserves Its Own Platform

Unlike general-purpose CNC lathes, threading-specific machines are calibrated to control:

• Pitch tolerance under continuous operation
• Thread profile geometry across various standard forms
• Tool wear compensation during high-volume cycles
• Surface roughness requirements for metal-to-metal or O-ring sealing interfaces

These capabilities are essential not only for dimensional accuracy, but also for ensuring tight sealing under pressure—a non-negotiable requirement in oxygen, LPG, and industrial gas applications.

Multi-Spec Compatibility, Single-Line Stability

Our threading systems are capable of switching between BSP, NPT, and metric profiles with minimal downtime. This flexibility allows us to serve global customers while maintaining repeatability at scale. In-process inspection is integrated to monitor deviations and automatically reject out-of-tolerance parts.

Threading is where design drawings meet physical function. A mismatched pitch, a deformed crest, or a poor finish can render an entire valve unusable—or worse, unsafe. That’s why we invest not just in machines, but in a stable, closed-loop threading environment.