Flap discs are designed with abrasive cloth strips glued on to a rigid backing in a fan arrangement. Flap discs can replace in many operations, both grinding wheels and fibre discs. It is possible by using flap discs to cut and finish in one operation. The unique construction allows for new grain to be constantly in contact with the surface, as the flaps continually wear out. The life of a flap disc can be 20 times that of a fibre disc, resulting in a major cost reduction in both labor and material costs. A new heavy-duty product is available which gives high performance for weld removal on corners, flame cut edges, heavy deburring and cleaning of spot welds.
When removing the left over metal from the joint area, the motion of the grinder is the same as when using the rough grinding disc. Press the face of the disc into the work and work evenly around the tubing until it appears flush with the head tube shell.
Backing Plate: (Plastic / Fiberglass / Metal)
Flap discs come with aluminum, fiberglass or plastic backing plates. Fiberglass is the most common. Aluminum is sometimes chosen due to no potential fiberglass dust hazards. Plastic backing is becoming more popular with some manufacturers suggesting that the plastic backing can be trimmed to increase working life.
Shape: (T27 / T29)
Flap discs are broken down into flat and angle face. Following grinding wheel terminology flat discs are type 27 while angle discs are type 29. Typical angle faced flap wheels are about 10°. Angle faced discs are more aggressive and are more suited to stock removal while flat faced discs are better on flat surfaces and will produce a more consistent finish.
Ignoring the backing and adhesives for a moment, flap disc grinding performance is directly related to the quality of the abrasive material used. Flap disc design can enhance or reduce performance but nothing can replace a quality abrasive material.
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Zhejiang WuYi Datong Abrasives Co., Ltd. a well-known China enterprise, is engaged in manufacturing professional coated abrasives and resin abrasives in china. The Company, aiming at occupying the market with high quality products, obtaining a swift growth through excellent service and making friends all over the world by credibility, is making great efforts to be a credible manufacturer of our client. Because of the conventional differences existing in coated abrasives as well as in grinding and polishing tools, the Company is ready to supply various products suitable to different regions and satisfactory to special requirements and higher quality. We are confident that our product of "DATONG"brand is being and will be your engineering partner in the near future. The Company strictly executes quality management system of ISO 9001 in company operation. And our products, having been subjected to testing and certification by the authorized German MPA, are in conformity with the security standards of European EN12413 for grinding tools, and meet with security requirements for market access. The Company is equipped with advanced production facilities, has a leading level in product designing and development, and has a perfect and strict testing system for material collecting, procedure control, end-product testing and detailed records of production which have made the Company to be able to optimize its production mode successively so as to meet with higher requirements from the clients. Our product series of "DATONG"brand, supported by perfect marketing system and high-grade image emplacement, as well as carrying along with profound Chinese philosophy, sends friendship to all over the world and makes a bridge to the future.
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