48 Grinding Chicago Pneumatic Abrasive T ools have all the benefts of advanced ergonomics with the features required to enhance the physical and mental wellbeing operators need to achieve increased productivity levels Signifcant sound and vibration reduction helps reduce operator fatigue and improve performance Complete line designed for maximum productivity under rugged conditions Wide choice of tools die grinders small wheel grinders horizontal grinders and vertical grinders Powerful yet complete and lightweight produce more power per pound than comparable electric models Air powered Minimal risk of electrical shock or overheating even with continuous use Other Features Rugged construction to withstand tough use Head treated internal parts keep tool operating minimize repairs Easy to service simple replacement of rotor blades usually restores original power Wide variety of accessories extended versatility of the tool Er G o N omi C F EA T ur ES Coll ET G ri N d E r S The choice of burr depends on the size of your application A larger volume of material to be removed will require a bigger size of abrasive Select the tool rpm depending on the diameter of the burr head the material to be ground and the material in the rotary burr Use tungsten carbide burrs for hard and tough materials High speed steel burs are recommended for unhardened and medium hard materials See table Recommended speeds depending on the machined and the diameter of the head of the carbide burrs Diameter of the head of the carbide burrs Material T ype 18 3 mm 14 6 mm 38 10 mm 12 12 mm 58 16 mm speed RPM Steel 60000 90000 45000 60000 30000 40000 22500 30000 18000 24000 T empered steel 60000 90000 30000 45000 19000 30000 15000 22500 12000 18000 Stainless steel 60000 90000 30000 45000 19000 30000 15000 22500 12000 18000 Casting 45000 90000 22500 60000 15000 40000 1 1000 30000 9000 24000 T itanium 60000 90000 30000 45000 19000 30000 15000 22500 12000 18000 Nickel 60000 90000 30000 45000 19000 30000 15000 22500 12000 18000 Copper copper alloys 45000 90000 22500 60000 15000 40000 1 1000 30000 9000 24000 Aluminium 30000 90000 15000 70000 10000 50000 7000 38000 6000 30000 Plastics 30000 90000 15000 70000 10000 50000 7000 3800 6000 30000 Cermet 60000 90000 30000 45000 19000 30000 15000 22500 12000 18000 Small precision deburring die grinding is performed with either tungsten carbide high speed steel burrs or mounted points Carbide Burrs Mounted Points Wh EE l G ri N d E r S Pure material removal regardless of whether it is removed from a cramped or an open space is determined by the power generated at the grinding process The applied feed force and the rotation of the wheel generates a cutting force which multiplied by the peripheral speed of the wheel represents the power removing material power peripheral speed x cutting force Chicago Pneumatic grinders features a high degree of safety Safety throttles overspeed shutof f and wheel guards are good examples of product safetey features carried by your grinders The table below will help you to translate the peripheral speed of the grinding wheel to the correct rotational speed of the grinder when using a specifc diameter of grinding wheel How ensure safe operation Check the tool free speed Match the maximum speed of the abrasive to the grinder Inspect the grinding wheel Inspect the fange Inspect the wheel guard 1 W ear protection goggles gloves hearing protection T est run your grinder in a protected area after assembling the wheel Make sure that the tools receive proper maintenance see service sheet 2 Disconnect the tool from the air network before changing accessories abrasives Maximum work speed in ms or FeetMin Diameter in mm 32 35 40 50 63 80 100 125 6300 6890 7875 9842 12401 15750 19685 24600 1 25 24450 26740 30560 38200 48130 61120 76390 95490 114 32 19100 20890 23870 29840 37600 47750 59680 74600 1916 40 15280 16710 19100 23870 30080 38200 47750 59680 2 50 1220 13370 15280 19100 24060 30560 38200 47750 212 63 9700 10610 12130 15160 19100 24250 30320 37890 3 80 7640 8360 9550 1 1940 15040 19100 23870 29840 4 100 61 10 6680 7640 9550 12030 15280 19100 23870 5 125 4890 5350 61 10 7640 9630 12220 15280 19100 6 150 4070 4460 5090 6370 8020 1190 12730 15920 7 180 3400 3710 4240 5310 6680 8490 10610 13260 778 200 3060 3340 3820 4780 6020 7640 9550 1 1940 9 230 2660 2910 3320 5150 5230 6640 8300 10380 92732 250 2440 2670 3060 3820 4810 61 10 7640 9550 1 11316 300 2040 2230 2550 3180 4010 5090 6370 7960