Company A manufactures various machine tools and FA equipment. The company was planning to upgrade its FA inspection equipment to improve its processing speed.
The development department was faced with several technical challenges, as well as heat countermeasures. Mr. B, chief engineer of the design and development department at Company A, had this to say:
"As processing speed increases, the amount of heat generated inside the case increases significantly. Therefore, when we performed a simulation using the cooling fan installed in the current model, we determined that the cooling performance would be insufficient if we simply used the current fan.
Previously, the equipment was sealed and cooled by circulating the air inside with a fan, but after the model change, it became clear that internal circulation alone was not enough to cool the equipment, and it was also necessary to take in outside air.
Taking in outside air means that oil mist and other contaminants that are dispersed in the air inside the factory may get into the fan, which could cause it to break down." (Mr. B)
Mr. B and his colleagues then tested various cooling fans, but none of them met the required specifications.
Mr. B contacted SANYO DENKI CO., LTD., a company with which he had dealings in another department, to discuss cooling fans. A SANYO DENKI CO., LTD. representative visited Company A, listened to Mr. B's detailed concerns, and proposed Oil Proof Fan.
"Oil Proof Fan that was proposed to us has a resin coating that protects the windings and electronic components, so it can be used safely in environments where oil mist is scattered, such as inside a factory. Furthermore, we found maximum static pressure is about 1.4 times that of our current fan, which is an extremely high specification. This will not only provide sufficient cooling for the inside of the equipment, but we are also confident that it will be able to withstand the harsh operating environment of a factory." (Mr. B)
Strongly interested in the proposal, Mr. B immediately requested samples for evaluation.
The samples arrived quickly, and during the in-house evaluation and presentation, the person in charge at SANYO DENKI CO., LTD. explained the relationship between airflow and static pressure, including P-Q performance. The development schedule was tight, but the internal evaluation went smoothly because the fan has excellent oil resistance and cooling performance. (Mr. B)
Thus, Company A decided to officially adopt SANYO DENKI CO., LTD. 's Oil Proof Fan.
"The person in charge also consulted us about customizations such as changing the connector part. By having SANYO DENKI CO., LTD. handle the customization, we did not need to change the board and were able to reduce assembly man-hours. We also had peace of mind knowing that the product warranty included the connector processing. This customization required fine adjustments when making the prototype, but they responded quickly." (Mr. B)
A few months later, Company A successfully developed the new model.
"It has demonstrated excellent cooling performance as expected. We have achieved stable operation that is not affected by oil mist. We would like to continue consulting with SANYO DENKI CO., LTD. on various matters in the future." (Mr. B)
*For more information about Oil Proof Fan, see Knowledge Fan Basics: Features of Splash Proof Fan, Oil Proof Fan, Wide Temperature Range Fan, and G Proof Fan
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