ISO 6431 DNC Standard Cylinder Shock Absorber

A cylinder buffer absorbs the kinetic energy when the piston reaches the end of its stroke through elasticity or damping, preventing direct metal-to-metal impact. This reduces wear, extends the cylinder's service life, improves motion stability, and reduces noise.

The ISO 6431 standard cylinder buffer features excellent stability under high-speed and heavy-load conditions, with the DNC buffer being a typical example. The DNC buffer component has an adjustable conical throttle, which gradually reduces airflow and effectively decreases the piston speed before metal contact occurs. Compared with conventional straight-through buffers, it provides a smoother deceleration and avoids “hard impacts.”