How to distinguish the quality of rubber hydraulic hose?

To distinguish the quality of hydraulic hoses, you can consider the following aspects:

1. Observe the Outer Rubber Layer: High-quality hydraulic hoses should have a continuous outer rubber layer free of cracks, exhibiting a certain degree of elasticity and wear resistance. Visible defects or damage to the outer rubber can potentially affect the lifespan and performance of the hose.
2. Inspect the Steel Wire Layer: Hydraulic hoses typically include a steel wire layer inside to enhance their pressure resistance and wear resistance. A good hydraulic hose should have a uniform steel wire layer without any breaks, and the steel wires should have an appropriate travel and diameter for the reinforcement layer. Issues with the steel wire layer can compromise the strength and stability of the hose.
3. Assess the Inner Rubber Layer: The thickness of the inner rubber layer should be consistent, providing good sealing and oil resistance. If the inner rubber is too thin or contains impurities, it can lead to leaks or damage.
4. Examine the Bonding of Steel Wire and Rubber: In high-quality hydraulic hoses, the steel wire should be tightly bonded to the rubber without any gaps or detachment. Loose bonding can affect the overall performance and lifespan of the hose.