Fine grinding and finishing products
Spanner Wrench for Backing Pad Clamping Nut
Spanner Wrench for Backing Pad Clamping NutPFERD offers different face pin spanners (STL) with different widths across flats (SW).Technical informationDrive typeAngle grinderPack qty1
Unitized Mounted Point, Ball Shape, A26
Unitized Mounted Point, Ball Shape, A26Multiple heavily compressed, non-woven layers, which are bonded together by a special grain/resin system. The SiC version is ideal for demanding tasks on hard or sensitive materials. The ball shape KU is often used for contour grinding and backside deburring.Special featuresCost-effective due to high abrasive performance and durability.Produces very good surface quality.Can be profiled as desired, enabling optimal adjustment to the contour.ApplicationsCleaningDeburringStep-by-step fine grindingRougheningStructuring (matt finishing, brush matting and satin finishing)Surface workMaterials that can be workedAluminumBrassBronzeCast steelCobalt-based alloysCopperFibre-reinforced thermosetting plastics (GRP, CRP)Hardened, heat-treated steels over 370 HV (38 HRC)Nickel-based alloys (e.g. Inconell and Hastelloy)Stainless steel (INOX)Steel materials with a hardness > 54 HRCSteels up to 370 HV (< 38 HRC)ThermoplasticsTitaniumTitanium alloysZincRecommendations for useFor the best performance, use with a recommended peripheral speed of 2,000-4,000 SFPM. This provides an ideal compromise between stock removal rate, surface quality, thermal load on the workpiece and flap wheel/cross buff wear.Considerably reduce peripheral speed for work on materials with poor heat-conducting properties, e.g. titanium and stainless steel.SafetyFor safety reasons, the maximum permitted rotational speed indicated must never be exceeded.Technical informationShapeBallVersionMW (medium-soft)Width3/5 inDia. shank1/4 InchDrive typeFlexible shaft driveGritF (fine)Max. RPM44500Pack qty10
Unmounted Flap Wheel
Unmounted Flap WheelWith unmounted flap wheels, coated abrasive flaps are arranged radially around the core in a fan-like structure. The flexible flaps perfectly adapt to surface contours. The abrasive grain is embedded in the sturdy, flexible cloth backing material with a resinoid bond. In ISO 5429, unmounted flap wheels are designated as "flap wheels." For universal applications from coarse to fine grinding.Special featuresConforms to contours due to high flexibility.Consistently high stock removal rate throughout the entire service life as new, aggressive abrasive is constantly exposed.Can be used face-down very close to edges and in corners thanks to special clamping system.ApplicationsDeburringStep-by-step fine grindingLevelingStructuring (matt finishing, brush matting and satin finishing)Surface workWork on weld seamsMaterials that can be workedStainless steel (INOX)Steel materials with a hardness > 54 HRCSteels up to 370 HV (< 38 HRC)AluminumAnnealed cast ironBrassCast steelCopperGrey/nodular cast iron (GG/GJL, GGG/GJS)Hardened, heat-treated steels over 370 HV (38 HRC)Recommendations for useFlap wheel wear and the thermal load on the workpiece are reduced by decreasing the contact pressure and peripheral speed, and by adding grinding oil.Stock removal rate should be increased by using a coarser grit, not by increasing the contact pressure. This avoids unnecessary flap wheel wear and prevents the thermal load of the workpiece.Increasing the speed results in a slightly finer surface quality. An increase in contact pressure results in a slightly coarser surface. The softer the workpiece material, the coarser the resulting surface (when using the same grit size).For the best performance, use with a recommended peripheral speed of 3,000-6,000 SFPM. This provides an ideal compromise between stock removal rate, surface quality, thermal load on the workpiece and tool wear.Use the appropriate grinding oil for the material to significantly increase the service life and the abrasive performance of the discs.For the best results, use a power tool with 1,000–1,500 watts.SafetyUnmounted flap wheels should only be used with the appropriate clamping flanges.For safety reasons, the maximum permitted rotational speed indicated must never be exceeded.The contact pressure has to be reduced significantly when the optimum rotational speed is exceeded.The maximum permitted peripheral speed is 9,800 SFPM.Technical informationDia. External4 inWidth1 inDrive typeFlexible shaft driveGrit40Max. RPM9500Pack qty2
Wheel Reducing Flange (Pair)
Wheel Reducing Flange (Pair)For mounting unmounted flap wheels and POLINOX® grinding wheels on drive spindles. The clamping flanges are designed to lie countersunk in the tool.Special featuresCan be adapted to an existing drive spindle by drilling.Can be used face-down very close to edges and in corners thanks to special clamping system.Technical informationDia. External1 1/2 inDrive typeBench grinderPack qty1