Ultrazip Flap Wheels (Discontinued)

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The Ultrazip Flap Wheels is designed for fast material removal applications on all hard, brittle materials without the need for high pressure. This Hybrid flap wheel comes with a combination of diamond and silicon carbide flaps on a reinforced plastic backer pad. Each flap makes line contact so that the disc will maintain fast, aggressive cutting without having to apply pressure. Although it is designed for high-speed angle grinders, for the best results, Alpha® recommends using at 8,000 rpm if the grinder has a variable-speed control switch. While the Ultrazip is great for dry use, it can be used wet to keep the dust down, for higher performance and a longer life.

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Question : Why do we have 4.5” diameter only and other sizes not available?

Answer : The design of the Flap Wheel is called Type 27 or Depressed Center Type. If we make 4” diameter, then the arbor size would be 5/8” that is not popular in the US market. The 4.5” angle grinders are the most popular size of small grinders in many trades so that we started with this size; however, since the stone industries may prefer a 5” diameter, we are currently considering adding a 5” version in the future.

Question : Why are we limited with three grit sizes?

Answer : The Ultrazip Flap Wheel is designed for light grinding and sanding so that we chose three steps to cover the range of the application. Technically speaking, we can make coarser or finer mesh sizes; however, there are better products available for heavier material removal or polishing so that we will lose the advantage of Flap Wheel.

Question : Why did we choose a silicon carbide grain over aluminum oxide for the abrasive flaps?

Answer : Although aluminum oxide may perform better on steel applications, silicon carbide has a wider application range to cover not only the metal applications but also masonry applications.

Question : I have a variable-speed grinder for the application with Ultrazip Flap Wheel. What is the best rpm I should use for the Ultrazip Flap Wheel?

Answer : Considering the speed of process, life of product and the quality of the finish, Alpha® recommends around 8,000 rpm if your grinder has variable speed option.

Question : I have a grinder with M14-2 spindle. Can you supply Ultrazip Flap Wheel with disposable zinc hub with M14-2 female thread?

Answer : No. We don’t have a M14-2 version of zinc hub available at this time. However, if the requirement quantity is large enough, we can create one with M14-2 female thread. For the customer with M14-2 spindle, we recommend the one with the 7/8” arbor so that they can attach it with the flange system that comes with the grinder.

Question : Why does the Ultrazip Flap Wheel have diamond and abrasive flaps mixed?

Answer : It is due to economic reasons. If we use only diamond flaps to complete the disc, the cost/price will become so much higher. We instead mix diamonds and abrasives as a 1:1 ratio to set a price point reasonable for the customers.