Hydraulic Cylinder Parts Prone to Damage Identified

Qingdao Micro Precision Machinery Co., Ltd. has released an analysis identifying critical components within hydraulic cylinders that are prone to damage. The company emphasizes that understanding these weak points is crucial for preventing failures and ensuring the efficient operation of hydraulic systems.

The cylinder barrel, specifically its inner wall, is highlighted as a common area for cracks. These fissures often start on the inner surface and propagate outward linearly or at an angle. Similarly, the cylinder flange, particularly at transition arcs, can develop cracks that spread circumferentially or towards bolt holes, potentially leading to partial detachment.

Damage can also occur at the cylinder base, where annular cracks may initiate on the inner surface of the transition arc and extend to the outer wall. Cavitation is another significant concern, capable of causing honeycomb-like pitting on the inner wall, especially near fluid inlet holes.

The analysis further points to design flaws, such as inadequate flange height or excessively large flange diameters, which can increase component weight and stress. Material properties and heat treatment of the piston rod, commonly made of chrome-plated steel, are also critical. Poor mechanical properties or improper induction hardening can make the piston rod susceptible to damage under high operational loads.