The harm of excessive oil temperature of electric hydraulic grab.

The oil temperature rise of hydraulic grab not only wastes energy, but also produces the following hazards:

1. The grab work is unreliable an unsafe. The oil temperature rises sharply, the hydraulic oil viscosity, the volumetric effciency and the hydraulic system work effciency all decrease, the leakage increases, the protection pressure does not hold. The light accident grasps the force to become small or cannot hold the cargo, the reliability is poor. The heavy accident grasps the cargo in the air falls, it is not safe.

2. Impact on production. Because of the above 1 situation, the user has to stop to let the oil temperature of the grab come down, affecting the efficiency of the loading and unloading.

3. The components of the hydraulic system in overheating and inflation, destroyed the original normal fit clearance, relative motion parts in friction resistance increases, the hydraulic valve easy seized up, at the same time, the lubricating oil film thinning, increase mechanical wear, So the pump, valve, motor and other precision fitting surface due to premature failure or scrap

4. The oil vaporization and water evaporaton, easy to cause cavitation of hydraulic components; The oil is oxidized to form the elatinous sediment, easy to plug the hole in the filter and hydraulic valve, so that the hydraulic system can not work properly.

5. Accelerate the aging and deterioration of rubber seals, shorten the life span, and even lose its sealing performance, causing serious leakage of hydraulic system.