RTP Provides Nylon Compound For Fan Blades

RTP has recommended using a reinforced nylon compound for a blade used in a universal cooling fan to provide it with stiffness and rigidity. The difficulty of finding a specific size replacement fan for a downed refrigeration system compressor led Lamont Van Slate, owner of Van's Refrigeration Service, to conceive the 'Van Fan', a universal cooling fan with blades that can be resized on site to fit individual system needs.

According to Bob Mattox, owner of Mattox Machine and Molding, who developed the universal cooling fan in collaboration with Van's Refrigeration, the fan has the potential to revolutionise the industry. 'Instead of storing large inventories of bulky fans with blades of various sizes and designs, repairmen and suppliers can now simply stock a series of interchangeable blades that snap on and off a common hub,' he said.

'This reduces the number of fan assemblies that need to be stocked,' added Mattox. The Van Fan's design includes a trimmable blade feature, which enables the blades to be individually resized to work on any fan from 6in to 26in (15-65cm) in diameter. The blade pitch can be set to eight different choices to allow the most efficient airflow. 'With so many blade options available in one fan, technicians no longer have to spend time searching for the correct size fan blade,' said Mattox.

After evaluating the fan's requirements, RTP engineers recommended an RTP 200 Series glass-fibre-reinforced nylon 6/6 compound for the blades. The material provided the necessary stiffness and rigidity to remain balanced during operation, as well as high impact resistance and UV stability. These characteristics enable the blades to withstand the harsh climate and temperature changes associated with a challenging outdoor operating environment.

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