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October 26, 2017
When it comes to pneumatic grinders, many professionals in metal working, fabrication, shipbuilding and foundry & casting plants only consider the type of abrasive wheels when choosing their tool. However, this is not enough. Here is some advice on when to use an angle grinder versus a vertical grinder to get the job done right.
• When using abrasives wheels between 4'' (100mm) and 6" (150mm): Angle grinders are usually designed for abrasives wheels sized between 4" (100mm) and 6" inches (150mm).
• When maneuverability is the priority: The compact size of an angle grinder allows for easy operation when working in tight areas and makes it possible to hold the tool's overhead.
• When abrasive visibility is the priority: Thanks to their low profile, working with angle grinders ensure a good visibility on the abrasive when high precision is required for the job.
• When high power is needed: Some applications require high power to allow operators to apply a heavy load (feed force). This is where vertical grinders excel. Their large air motors can provide up to 4.5hp (3400 W) power which allows quick removal of large amounts of material.
• When working on large components: Some casting deburring and fabrication of large structures requires coverage of large surfaces, or grinding on long distances. In this case, abrasives wheels of 7” (180mm) and 9” (230mm) work faster than grinders with 4” (100mm) or 5” (125mm) abrasive wheels. In other words, if you are working on a big job, use bigger tools!
• When working on benches: For this specific application, the weight of vertical grinders helps the operator reduce the needed feed force and makes his job easier.
There is a tool for each application. When making your choice, you should consider the two following things: First, make sure the selected tool is made for running the specific abrasive dimension you need, at the correct speed. And then, include the working preferences of the operator, to ensure ergonomics and comfort.
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