Selecting the proper angle grinder attachment for your steel work is critical for obtaining the desired results. When it comes to selecting the best metalworking tool, flap discs are the first choice of most fabricators. A flap disc is a coated abrasive attachment for an angle grinder used to smooth and form metals. This equipment is extensively used in welding, machining, heavy-duty machinery, industrial maintenance, agriculture, and food manufacturing enterprises.
What are SAIT Flap Discs?
A United Abrasives SAIT flap disc is an attachment for an angle grinder, which consists of overlapping abrasive pads known as “flaps,” which are applied to a fiberglass or metal, or plastic plates to function as angle grinder attachments.
A flap disc is less expensive and works as a grinding wheel in various applications. Flap discs are more popular because of their quick stock removal, as well as the ability to grind, mix, and finish in one use.
They are versatile, lightweight, easy to use, and convenient surface-finishing tools. Standard flap discs last up to 25 times longer than aluminum oxide resin fiber discs when used to smooth welds after grinding wheel.
Unique Characteristics
SAIT Flap Discs are constructed of a long-lasting aluminum oxide grit ideal for steel grinding. The 4-1/2″ discs have a speed of 12,400 RPM, while the 5″ disc has a maximum speed of 13,300 RPM.
- Combines coated and non-woven abrasives, which allows you to grind and finish with one product, reducing time and labor.
- High-performance ceramic is available in 40 and 60 grits, which have an outstanding life expectancy.
How are SAIT Flap Discs Used?
Flap discs are used in various ways, including:
- Cut off and finish weld spatter.
- Remove paint.
- Rust removal is another popular application for flap discs.
- Flap discs are also useful for removing flash from molds and castings
Flap Discs vs Grinding Wheels
In terms of function, a flap disc and a grinding wheel are similar in that both are used to shape metal. Apart from this resemblance, the major distinctions between a flap disc and a grinding wheel are why and when you should use each one.
Flap discs are useful for cutting metal at right angles. They have a flexible nature and are an excellent abrasive tool for shaping metals with fine cuts.
A grinding wheel is used for general material sharpening tasks, like sharpening shovels, axes, shears, lawn mower blades, and other hand cutting tools. You can also use a grinding wheel to clean and remove undesirable surface debris, but they are not the best option for finishing jobs.
Why Flap Discs are the Best Metalworking Tool
Flap discs, designed specifically for industrial applications, can cut considerably more material (with less workpiece gouging) than a grinding wheel. Flap discs are employed for various reasons, because they are small, lightweight, easy to handle and store, low downtime for product changes, low vibration, and make little noise.
Using a Flap Disc for Stainless Steel
Flap discs made of stainless steel should be labeled as such. They are generally more expensive than flap discs designed for mild steel, although there is a reason for it. One factor is that they have a low iron content. Also look for the statement “the flap discs are contaminant-free” or “made from 0.1% iron, sulfur, and chlorine.”
The grit employed on the flap disc will be powerful enough to process your stainless steel nicely, while not gouging the surface. An excellent blade for cutting stainless steel using an angle grinder is United Abrasives SAIT ENCORE 4-1/2 X 7/8.
For help finding the right grinders and SAIT flap disc solutions for your team, our skilled technicians are always on hand. Request a Quote or call us at 1-866-405-2985 to speak with a Pro Tool & Supply representative for more information on our stock of construction dehumidifiers, ventilators, portable construction air conditioners, and fans.
