PFERD Tools Main Catalogue Page 570
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Industrial power brushes Cutting speeds Determining the recommended rotational speed ① Brush type ① Select the brush type. ② Read the recommended cutting speed. ③ Determine the rotational speed using the brush diameter and cutting speed. End brushes 5–15 m/s Cup brushes 15–45 m/s Shank-mounted wheel brushes Wheel/bevel brushes with arbor hole/ threaded 15–40 m/s 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 15 20 25 crimped Removal of scale/ mill scale crimped Weld dressing crimped Page Catalogue 10 8 50 55 35–55 m/s 30–40 m/s 30–45 m/s 25–40 m/s knotted 8 45 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 knotted 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 40 15–30 m/s 15–30 m/s knotted Cleaning/ roughening of surfaces 35 See diagram below 35–45 m/s 30–40 m/s 25–40 m/s knotted Deburring/ edge breaking 30 ② Cutting speed n [RPM] Brush dia. D [mm] 10 15 20 25 30 40 50 60 75 80 100 115 125 150 175 200 250 300 1,000 1,250 1,500 1,750 2,000 2,500 3,000 3,500 4,000 4,500 5,000 5,500 6,000 6,500 7,000 7,500 8,000 10,000 12,000 14,000 16,000 20,000 22,000 25,000 1 1 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 5 6 7 8 10 12 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 Cutting speed (v) = 7 8 10 11 13 16 20 23 26 29 33 36 39 43 46 49 52 65 79 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
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