Choosing the Right Vertical Grinder
When it comes to pneumatic power tools, few professionals in metal working, fabricating, foundry & construction industries just think about the kind of abrasive wheels usually chosen by them. But this isn’t all. There are other aspects that you should think about before you pick your own piece of equipment. Here’s some information on when to employ an angle grinder vs a vertical grinder for the best work to be done.
Vertical Grinder vs. Vertical Grinder – In general, there is less work involved with vertical grinders than there is with vertical grinding wheels. Because of this, it is better for workpieces with large surface areas. The bigger the workpiece, the more work you can do with the vertical grinder since it can perform both heavy and light grinding operations with the same machine.
The Grinder Wheels – As with any type of grinding wheel, you will find both positive and negative aspects to consider with vertical grinding wheels. Some of these involve design as well as cost considerations. Some of these features have to do with durability, weight and portability. And others relate to performance.
Spindle Type – A two-piece face grinding spindle setup can be beneficial when using vertical grinder wheels. This setup allows the two pieces of material to spin at different rates thus resulting in a grinding speed that is different from both the two pieces. The disadvantage to this is that you must have two pieces of equipment to complete a task. Another drawback is that when your machine becomes overheated the two grinding pieces can cease to function, which may hinder your production.
Roundness – Grinding wheels with larger surfaces tend to give less distortion. This can be important when a small abrasive material is needed to grind a specific area of a workpiece. But when more material is needed to achieve a specific roundness on the workpiece, a more powerful and large grinding wheel setup is required. The cost of the vertical grinding spindle set-up will be more expensive than a smaller roundness setting. However, if a greater amount of precision is required then larger, more expensive pieces will be necessary.
Chuck Technology – With a vertical grinder, the workpiece is held between two pieces of equipment instead of between two different pieces with a horizontal grinder. This means that the chuck can move up and down faster than it can on a horizontal grinder allowing for faster, more accurate grinding. When selecting the appropriate vertical grinder for your work, be sure to compare the speed and torque of each of the two types of machines. Be sure you also consider how fast the workpiece can be moved back and forth between the two pieces of equipment.