Tim comes from Mexico, and started purchasing hydraulic cartridge directional control valves from AAK 3 years ago, including customized ones and models benchmarking SUN or HydraForce. At the beginning of this year, Tim wanted AAK to lower the price of a hydraulic cartridge directional control valve equivalent to HydraForce. The reason was that he received quotations from other hydraulic cartridge manufacturers in China, which were 13% cheaper than AAK. I gave him a 3% discount, but Tim still chose a new hydraulic cartridge valve manufacturer. 3 months later, Tim came back to AAK. After communication, it was learned that he had encountered trouble with burrs in the hydraulic cartridge directional control valves produced by the new hydraulic cartridge valve manufacturer.
Within 3 months of delivery from the new hydraulic cartridge valve manufacturer, some customers complained that a small amount of hydraulic cartridge directional control valves were stuck, due to burrs. The manufacturer of the hydraulic cartridge directional control valve blamed that it was caused by the uncleanness of the hydraulic oil. Tim realized that he had chosen a hydraulic cartridge valve manufacturer with unstable quality, there won't be much gain from further discussion. He could only stop losses in a timely manner.
Tim knows that it has been 3 years since purchasing the hydraulic cartridge valves from AAK, and there has never been jamming of the hydraulic cartridge directional control valve due to burrs. I laughed and said to Tim, 'You can't always think of AAK only when you fall into troubles with other hydraulic cartridge valve manufacturers in China.’ Tim asked me to deliver 20 hydraulic cartridge directional control valves as soon as possible, resolving the customer's complaints first. After 3 days, the AAK samples were delivered and Tim's troubles were also resolved.
How can hydraulic cartridge directional control valves be guaranteed to be free of burrs? AAK prefers abrasive flow deburring. Our technicians operate it this way: First installing each hydraulic cartridge directional control valve into the abrasive flow disc, covering it with a disc cover, and then setting parameters such as injection pressure, injection angle, and injection duration for the abrasive flow equipment. Then start the program and the device will run for 2 minutes before completing the deburring process, while most hydraulic cartridge valve manufacturers in China complete it in 70 seconds to save time. If it is less than this time, it may cause a small amount of burr residue. Finally, the worker used an air gun to blow out any remaining abrasive particles on each components of the hydraulic cartridge directional control valve. Due to the characteristics of semi-solid abrasives, like "mud", they are flowable and have adsorption properties. Under compression, the abrasive shuttles through various channels, taking away hidden burrs that are difficult to clean. The enclosed areas of the components are deburred and also polished.
AAK hydraulic cartridge directional control valve, without burrs, and very shiny polished, you can also give it a try!
AAK HYDRAULIC VALVES (630) 2023-07-18