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	The structural parts are manufactured from high quality cast iron, heat treated and stress relieved for maximum material stability without deformation. The grinding wheel spindle and the regulating wheel spindle are precision machined from Nickel Chromolybedenum alloy steel (SNCM-220). Both spindles are subject to various heat treatments, making the machine ideal for heavy duty machining and high precision grinding. The upper slide can be swiveled +5°-5° High precision micrometric feed adjustment in 0.001 mm. Regulating wheel is driven by a servomotor, providing variable speed change. The feed screw employs high precision ball screws, normalized and high frequency heat treated for maximum wear resistance.   SC-12S Grinding diameter (standard) Ø1~Ø40 mm Grinding diameter (special) Ø30~Ø60 mm Grinding wheel size Ø305 x 150 x Ø120 mm Regulating wheel drive 1.3KW servomotor   SC-18S / SC-1812S Grinding diameter (standard) Ø1 ~ Ø40 mm Grinding diameter (special) Ø30 ~ Ø60 mm Grinding wheel size Ø455 x 205 x Ø228.6 mm /Ø455 x 305 x Ø228.6 mm Regulating wheel drive 2.2KW servomotor   top Standard Accessories Coolant system Regulating wheel and flange *1 set (mounted on machine) Grinding wheel and flange *1 set (mounted on machine) Tool box and kits *1 set Thrufeed work rest and carbide blade *1 set Infeed work rest and carbide blade * Optional Accessories Guard Profile grinding attachment SPECIFICATIONS SC-12S SC-18S SC-1812S Grinding Wheel Standard grinding range (Die.) Ø1～ Ø40 mm Ø1～Ø80 mm Ø1～Ø80 mm Capacity increases with special arrangement Ø30～Ø60 mm Ø40～Ø150 mm Ø40～Ø150 mm Grinding wheel size (O.D. x width x I.D.) Ø305 x 150 x Ø120 Ø455 x 205 x Ø228.6 Ø455 x 305 x Ø228.6 Grinding wheel speed 1900 R.P.M. 1260 R.P.M. 1260 R.P.M. Grinding wheel motor 7-1/2 HP x 4P 20 HP 20 HP x 4P Regulating Wheel Regulating wheel size (O.D. x width x I.D.) Ø205 x 150 x Ø90 Ø255 x 205 x Ø111.2 Ø255 x 305 x Ø111.2 Regulating wheel speed 10～300 R.P.M. (Variable) 10～300 R.P.M.(Variable) 10～300 R.P.M.(Variable) Regulating wheel motor / S series 1.5 KW servo motor 2.2 KW servo motor 3.5 KW servo motor Regulating wheel tilt angle +5~3 +5~3 +5~3 Regulating wheel swivel angle 5 5 5 Handwheel Graduation Upper slide feed graduation 4 mm/rev. 0.025 mm/graduation 3.5 mm/rev. 0.05 mm/graduation 3.5 mm/rev. 0.05 mm/graduation Upper slide micro-feed graduation 0.1 mm/rev. 0.001 mm/graduation 0.1 mm/rev. 0.001 mm/graduation 0.1 mm/rev. 0.001 mm/graduation Lower slide feed graduation 7 mm/rev. 0.05 mm/graduation 9 mm/rev. 0.05 mm/graduation 9 mm/rev. 0.05 mm/graduation Lower slide micro-feed graduation 0.2 mm/rev. 0.001 mm/graduation 0.2 mm/rev. 0.001 mm/graduation 0.2 mm/rev. 0.001 mm/graduation Trimming device graduation 1.25 mm/rev. 0.01 mm/graduation 2 mm/rev. 0.01 mm/graduation 2 mm/rev. 0.01 mm/graduation Drive Motors Hydraulic pump motor 1 HP x 4P 1 HP x 4P 1 HP x 4P Coolant pump motor 1/8 HP x 2P 1/4 HP x 2P 1/4 HP x 2P Machine Dimensions 1750 x 1050 x 1400 mm 2200 x 1840 x 1530 mm 2350 x 1950 x 1530 mm Net weight 1650 kgs 3200 kgs 3600 kgs Gross weight 1900 kgs 3500 kgs 3900 kgs Packing dimensions 2280 x 1100 x 1740 mm 2280 x 1940 x 1850 mm 2550 x 2100 x 1900 mm   top Standard Accessories . Regulating wheel and flange *1 set (mounted on machine) . Grinding wheel and flange *1 set (mounted on machine) . Infeed work rest and carbide blade *1 set . Thrufeed work rest and carbide blade *1 set . Standard electric equipment *1 set (mounted on machine) . Oil tank *1 set (incl. oil cooling fan) . Standard coolant system *1 set . Diamond tools *2 pcs (mounted on machine) . Work lamp *1 set (mounted on machine) . Tool box and kits *1 set Optional Accessories . Wheel balancing stand and arbor . Automatic infeed attachment . Manual feeder for infeed grinding (up and down) . Hydraulic work ejector (infeed grinding) . Automatic loading attachment (thrufeed grinding)(Ø5-20mm, L100-600mm) . Automatic feeder for thrufeed grinding (hopper type)(Ø2-8mm, L50-180mm) . Automatic unloading attachment (thrufeed grinding) . Supporter for long bar grinding . Profile grinding attachment . Magnetic coolant separator . Coolant separator with paper filter . Hydrocyclone coolant separator . Auto. loading and unloading attachment (infeed grinding) . Vibratory feeder (thrufeed grinding) . Large work rest (thrufeed grinding)   top
SIGMA MACHINERY CO., LTD. No. 5, 37th Rd., Industrial Park Xie Tun District, Taichung 407, Taiwan TEL:886-4-2359-8658 FAX:886-4-2359-8659 E-MAIL:sigmatop@xuite.net http://www.sigmatop.com.tw Copyright © SIGMA MACHINERY CO., LTD. Hosted by Machinetools Directory (S & J Corp.), Plastic and Rubber Machine Directory.