Are Hand Dryers Durable?
| Ariful Islam
We buy hand dryers to make our lives easier. We expect it to help us in drying our hands as fast as it can. We even put extra budget to get the finest in the market. But what if it is not functioning the way it should be? What can we do?
Let us identify the typical problems you encounter in your hand dryers and some.
Performance has Reduced
There are few likely causes on the motor, depending on its age and type. The 2 brushes holding the rotator of the motor will eventually ware including the brush motor hand dryer. Before its occurrence, even on a low cost unit, the electric hand dryer should should at least performed 100,000 cycles. Therefore, if it’s relatively new or in a low use area, this is less likely to be the fault.
When the electric hand dryer was installed, be sure to check it as well as what was the expected brush life is according to the supplier in order to eliminate this as a likely cause. Moreover, you will be able to visually detect if the brushes are worn because the connection with the rotator will be slight or there will be no connection at all. It is also worth checking or replacing the springs that hold the brushes in place.
The possible reason could be the springs on the brush motor that are not placed correctly in its proper condition and tension. If so, it will move about as the motor rotates. In addition to that, the components may have come loose so the unit will need thorough checking.
Modern hand dryers have been dependent on the speed of the airflow as opposed to the evaporation to dry hands. These hand dryers have an option whether it’s heated or unheated airflow. However, unheated airflow versions are far more efficient in terms of energy; so it’s important to check whether the hand dryer has a heater element. If it does not, the the dryer will only give off heat when it is in regular use.
Secondly, if heat is desired and there is a heater element, there could be a switch under the unit or on the circuit board that would allow the heat to be activated or deactivated.
Lastly, check the connection between the heater element and circuit board as it may have come loose and check that there is power to the heater element. If it is none of these things, you may need to obtain a new heater element from the supplier.
For the users of stainless steel hand dryers, this steel has been added by chrome for the rust resistance and often nickel for acid resistance. If it contains 18% chrome and 10% nickel, this will be considered as the top-quality stainless steel. The expected quality of this kind is generally more expensive, brighter and whiter in colour compared to the lower grade stainless steel ranging from 13/0 that looks like quite grey. Despite its name, most metal alloys used in cutlery make it stain-resistant rather than stainless.
ABS combines the strength and rigidity of acrylonitrile and styrene polymers with the toughness of polybutadiene rubber. While the cost of producing ABS is roughly twice the cost of producing polystyrene, it is considered superior for its hardness, gloss, toughness, and electrical insulation properties. ABIS Hand Dryers is Robust ABS Plastic Cover to Last and are CE & RoHS approved.
ABS (Acrylonitrile Butadiene Styrene) ABS plastic is made out of oil-based resources that allows it to have much higher melting point than PLA plastic. It's also stronger and harder. ABS Plastic is a copolymer of Acrylonitrile, Butadiene, and Styrene, and generally possesses medium strength and performance at medium cost. ABS is a common thermoplastic resin and can often meet the property requirements at a reasonable price -- falling between standard resins like PVC, polyethylene, and polystyrene and engineering resins like acrylic, nylon, and acetal. ABS is considered the best of the styrenic family; it is tough, hard, rigid, and has a good chemical resistance and dimensional stability.