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November 7, 2017
The governor limits the air flow through the motor when no torque is applied. As soon as the operator increases the load, the air governor allows more air to flow through the air motor, maintaining the rotational speed of the abrasive. With this design, the abrasive is run at the correct speed and delivers maximal material removal.
The tool is running at free speed, with little to no load applied by the operator.
The tool is running and load is applied by the operator. The air governor opens up, to increase the air flow.
Put another way, with grinding, time is definitely money. All steps that can be taken to reduce time to complete each grinding task are essential in increasing productivity and cost savings.
Running the abrasives at the proper speed results in larger percentage of material removal in a given time.
Proper abrasive speed offers optimal safety for operators, avoiding abrasive bursts. Generally the free speed of a tool should never exceed the abrasive's maximum operating speed.
As a matter of fact, when the tool is not equipped with an air governor, as soon as feed force is applied, tool’s speed decreases, and therefore, the abrasive cannot be run at the right speed. The operator needs more time to get the same job done.
Ensure that your grinder's free speed always aligns with and never surpasses the abrasive manufacturer's specified guidelines (MOS)
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