Fan grinding wheel

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Flap Wheels with Flaps Mounted in a Fan Shape – Ideal Tools for Grooves, Slots, and Recesses

When delicate surface grinding is required in hard-to-reach places such as grooves, slots, recesses, or corners, flap wheels with fan-shaped mounted flaps are the right choice. The FSR 618 flap wheels can be used for grinding:

• metals,

• plastics,

• wood,

• filled surfaces,

• paints, and

• lacquers.

Fan-shaped flap wheels differ from other flap wheels in that their flaps are folded in pairs. This allows them to penetrate deeply into gaps, grooves, and corners while delivering a high-quality finish. The FSR 618 model features an exceptionally deep immersion capability and can be used in straight grinders, stationary machines, and flexible shaft systems.

High-Quality Bonding and Durable Grains for Reliable Grinding

FSR 618 fan-shaped flap wheels feature electrocorundum grain. Electrocorundum is a synthetic aluminum oxide known for its hardness and durability due to its irregular crystalline structure. The abrasive grain is bonded to the backing with synthetic resin, which ensures optimal adhesion. This synthetic resin is extremely hard and sticky, securing the abrasive grain in place. Klingspor offers these flap wheels in a range of grit sizes for both coarse and fine grinding.

Choosing the Right Abrasive Material for a Perfect Finish

Selecting the proper abrasive tool and matching abrasive material has a significant impact on grinding results. Grinding with fan-shaped flap wheels enables a very smooth finish on metals, plastics, and wood. This abrasive material is optimized for stability and wear resistance. The flexible cotton backing has high tear resistance, providing the necessary edge stability during face grinding and allowing worn grain to break off. The result is a consistent surface structure with minimal indentations and a smooth finish. Other materials with the same grit size tend to produce much rougher surfaces with higher contrast.

The required diameter of the fan-shaped flap wheel for grinding grooves, slots, and recesses depends on the cutting speed generated by the machine used. The higher the grinder’s rotational speed range, the smaller the diameter of the flap wheel needed. When using the FSR 618 in a grinder with variable speed control, the rotation speed should be adjusted according to the wheel’s diameter.