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Case Study
Want to maintain uniform temperature and humidity in a cabinet with scattered flour dust?

IP68 Splash Proof Fan with airflow control function for optimal dough proofing management

Kitchen Equipment Manufacturer M Corp. (100 Employees)
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  • Case Study 84 - Kitchen Equipment Manufacturer M Corp. (100 Employees)
  • When controlling airflow with voltage, the range of variation was narrow and rotation was unstable.
  • The interior compartment of the dough proofing machine had high humidity and scattered flour dust, so dust- and water resistance was required.
Solution and Results
  • Airflow control was optimized with the PWM control function.
  • IP68 protection rating to withstand humid environments with scattered flour dust.
  • Customized lead wire extensions in consideration of hygiene and environmental resistance.
A wide variety of breads, such as pastries and deli breads, are gaining popularity. In response, bread machine manufacturers must now develop devices that can manage optimal proofing according to bread type and shape.


Wanted to maintain uniform temperature and humidity inside the dough proofing machine

M Corp., which manufactures and markets bakery and kitchen equipment, was working on the development of a new model of their dough proofing machines. Mr. U of the company's development department had this to say:

"What we were aiming for was a device that could ensure optimal proofing for different types of bread. We decided to prevent uneven proofing by equipping the new model with a fan to make the temperature and humidity in the cabinet more uniform.
We needed to control the airflow for multiple operation modes of the product to maintain a uniform temperature and humidity without drying the dough, and tried to control the airflow using voltage. However, the range of airflow that could be changed with voltage was narrow, and fan rotation became unstable.
In addition, because of high humidity and scattered flour dust inside the cabinet, excellent dustproof and waterproof performance was important."

Mr. U gathered information to find fans who met these conditions.

Solution and Results

Optimize dough proofing management with IP68 fans with airflow control that can withstand high humidity environments

While gathering information, Mr. U visited the SANYO DENKI booth at an exhibition and mentioned his problems. Later, a SANYO DENKI sales representative visited M Corp. to discuss their issues in detail.

"The representative proposed a waterproof fan with an IP68 dust and water ingress protection rating. This fan also had a PWM control function, so it could easily optimize the airflow," enthused Mr. U.

Mr. U installed the proposed Splash Proof Fan in the prototype and tested it immediately.
"It was the first time for us to perform PWM control, but evaluation was simplified thanks to the box-type PWM controller the sales representative proposed, and we were able to significantly reduce the time needed for testing," he said with a grin.

Customized lead wire extensions for hygienic and durability applications

After evaluation, the fan was found to perform as expected, and M Corp. started considering using it.

"When we installed the fan, we found the standard lead wires were not long enough, and we were concerned about the effect on hygiene and environmental resistance of extending wires by joining them with connectors. When I consulted SANYO DENKI about this problem, they suggested customization to extend the length of the lead wires. Not needing connectors and joints reduced labor and the costs of designing protection measures. This value-added proposal also shortened our development period. I expect that SANYO DENKI will continue to make such proposals in the future," said Mr. U with confidence.

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