PFERD Tools Main Catalogue Page 606
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Industrial power brushes Cutting speeds Determining the recommended rotational speed ① Brush type End brushes ① Select the brush type. ② Read the recommended cutting speed. ③ Determine the rotational speed using the brush diameter and cutting speed. The recommended cutting speed ranges [m/s] depend on the respective application and lie below the maximum permitted cutting speed. ② Recommended cutting speed [m/s] for wheel/bevel brushes with arbor hole/ threaded. The colour bars correspond to the colour codes of the filament materials. [m/s] Application 10 Cup brushes 15–45 m/s Shank-mounted wheel brushes Rund-/Kegelbürsten mit Bohrung/Gewinde 15–40 m/s 15 25 40 45 50 55 35–55 m/s 30–40 m/s 35–40 m/s 30–35 m/s 20–40 m/s 15–35 m/s 15–30 m/s 35–55 m/s 30–40 m/s 30–45 m/s 25–40 m/s knotted crimped knotted Weld dressing crimped n [RPM] 35 15–30 m/s 15–30 m/s knotted Cleaning/ roughening of surfaces 30 See diagram below 35–45 m/s 30–40 m/s 25–40 m/s crimped Removal of scale/ mill scale ③ Recommended rotational speeds [RPM] Example: RBG 11512 ST Cleaning surfaces Brush diameter D: 115 mm Cutting speed: 39 m/s Rotational speed: 6,500 RPM 20 knotted Deburring/ edge breaking ② Cutting speed 5–15 m/s Brush dia. D [mm] 10 15 20 25 30 40 50 60 75 80 100 115 125 150 175 200 250 300 1,000 1 1,250 1 1,500 1 1,750 1 2,000 1 2,500 1 3,000 2 3,500 2 4,000 2 4,500 2 5,000 3 5,500 3 6,000 3 6,500 3 7,000 4 7,500 4 8,000 4 10,000 5 12,000 6 14,000 7 16,000 8 20,000 10 22,000 12 25,000 13 1 1 1 1 2 2 2 3 3 4 4 4 5 5 5 6 6 8 9 11 13 16 17 20 1 1 2 2 2 3 3 4 4 5 5 6 6 7 7 8 8 10 13 15 17 21 23 26 1 2 2 2 3 3 4 5 5 6 7 7 8 9 9 10 10 13 16 18 21 26 29 33 2 2 2 3 3 4 5 5 6 7 8 9 9 10 11 12 13 16 19 22 25 31 35 39 2 3 3 4 4 5 6 7 8 9 10 12 13 14 15 16 17 21 25 29 34 42 46 52 3 3 4 5 5 7 8 9 10 12 13 14 16 17 18 20 21 26 31 37 42 52 58 65 3 4 5 5 6 8 9 11 13 14 16 17 19 20 22 24 25 31 38 44 50 63 69 79 4 5 6 7 8 10 12 14 16 18 20 22 24 26 27 29 31 39 47 55 63 79 4 5 6 7 8 10 13 15 17 19 21 23 25 27 29 31 34 42 50 59 67 5 7 8 9 10 13 16 18 21 24 26 29 31 34 37 39 42 52 63 73 6 8 9 11 12 15 18 21 24 27 30 33 36 39 42 45 48 60 72 7 8 10 11 13 16 20 23 26 29 33 36 39 43 46 49 52 65 79 Cutting speed (v) = 8 10 12 14 16 20 24 27 31 35 39 43 47 51 55 59 63 79 9 11 14 16 18 23 27 32 37 41 46 50 55 60 64 69 73 10 13 16 18 21 26 31 37 42 47 52 58 63 68 73 79 13 16 20 23 26 33 39 46 52 59 65 72 79 16 20 24 27 31 39 47 55 63 71 79 dia. (D) x π x rot. speed (n) 1,000 x 60 Catalogue 8 | 11 8
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