Rotary Screw air compressors should only be utilized in applications that have a constant demand of air throughout the day. Rotary Screw compressors are meant for a high duty cycle. They will run loaded while building your air pressure to the preset pressure programmed into the controller when ordered. Once that pressure is achieved it will unload until your demand increases and go through the load cycle again. Rotary Screw units run quieter than a reciprocating unit, but do require more maintenance over the life of the machine.
Reciprocating air compressors are to be used when there is not a constant demand for air throughout the day. They feature pistons that compress air and are considered dependable because they tend to require less maintenance, are efficient in operation, and provide sufficient air flow for intermittent usage when sized properly with an air receiver. They are very flexible in the type of applications they are suited for, however we usually only recommend reciprocating compressors for applications that require less than 60% duty cycle.
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