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	A multi-function cylindrical grinder allows for various grinding operations, such as straight plunge, shoulder, traverse, end surface, taper and internal. Internal grinding is an optional function. Cross feed is semi-automatic. Traverse feed is hydraulically operated. The spindle is driven by a servo motor, providing variable speed change. . The structural parts are manufactured from high quality cast iron, heat treated and stress relieved fro maximum material stability without deformation. The grinding wheel spindle runs in special hydrostatic bearing, featuring no friction between metals, no heat growth and extra high accuracy. The grinding wheel spindle is precision machined from Nickel Chromolybedenum alloy steel (SNCM-220). The spindle is subject to various heat treatments, featuring maximum wear resistance without deformation. The spindle head can be swiveled +90 -30   top 　 SU2040 Swing over table 200 mm. Distance between centers 400 mm. Max. grinding diameter Ø160 mm 　 SU3206 Swing over table 320 mm. Distance between centers 600 mm. Max. grinding diameter Ø280 mm. 　 SU3210 Swing over table 320 mm. Distance between centers 1000 mm. Max. grinding diameter Ø280 mm. 　 High precision micrometric feed with accuracy up to 0.001mm 　 　 Standard Accessories Coolant system Hydraulic Pump with Tank *1 set Diamond Tool Holder *1 set       Tool box and kits *1 set Guard   top SPECIFICATIONS SU20x40 SU32/60/100/150 SU42/60/100/150 Capacities Distance between Centers 400 mm 600/1000/1500 mm 600/1000/1500 mm Swivel Over Table 200 mm 320 mm 420 mm Max. Load of Centers 60 kg 150 kg 200 kg Max. External Grinding Diameter Ø160 mm Ø280 mm Ø380 mm Wheel Head Swivel Angle 30 30 30 Manual Distance 135 mm 160 mm 160 mm Auto Rapid Advance 25 mm 40 mm 40 mm Sliding Seat Supplementary Displacement 95 (total 255 mm) 95 (total 255 mm) 95 (total 255 mm) Min. Setting Unit 0.0025 mm 0.0025 mm 0.0025 mm One Turn of Handwheel (graduation) 2 (0.005) mm 2 (0.005) mm 2 (0.005) mm Micrometric feed 0.001 mm 0.001 mm 0.001 mm Handwheel Straight Infeed 0～0.35 mm 0～0.35 mm 0～0.35 mm Grinding Wheel O.D. x Width x I.D. 305 x 38 x 127 mm 355 x 50 x 127 mm 355 x 50 x 127 mm Speeds (belt type) r.p.m. 2085 / 2495 1783 / 1940 1783 / 1940 Work Spindle Head Swivel Angle 120(+90 -30) 120(+90 -30) 120(+90 -30) Center Taper MT:3 MT:4 MT:4 Spindle Speeds (variable) r.p.m. 16～450 16～450 16～450 Max. Load of Spindle (tool holder included) 15 kg (Max length: 100 mm) 35 kg (Max length: 150 mm) 35 kg (Max length: 150 mm) Tailstock Taper Center MT:3 MT:4 MT:4 Stroke 20 mm 25 mm 25 mm Table Swivel Angle 12.5 12 10/ 8 Traverse Speed 50 ~ 4000 mm/min 50 ~ 4000 mm/min 50 ~ 4000 mm/min Auto. Reciprocate Min. Stroke 3 mm 3 mm 3 mm Feed of One Turn of Handwheel (2-step) 20 mm (2 mm) 20 mm (2 mm) 20 mm (2 mm) Motor Wheel Spindle 2.1 kw (4 P) 3.75 kw (4 P) 3.75 kw (4 P) Workhead Spindle 0.75 kw (4 P) (Inverter) 0.8 kw (Servomotor) 1.3 kw (Servomotor) Hydraulic Pump 0.75 kw (6 P) 0.75 kw (6 P) 0.75 kw (6 P) Wheel Spindle Lubrication Pump 0.18 kw (2 P) 0.18 kw (2 P) 0.18 kw (2 P) Coolant Pump 0.18 kw (2 P) 0.18 kw (2 P) 0.18 kw (2 P) Internal Grinding Spindle 0.18 kw (2 P) 0.75 kw (2 P) 0.75 kw (2 P) Tank Capacity Wheel Spindle Lubricant Tank 12L 12L 12L Hydraulic Fluid Tank 65L 65L 65L Coolant Tank 100L 100L 100L Machine Weight Kgs 2000 kgs 3000 kgs / 3200 kgs 3800 kgs / 4000 kgs   top Standard Accessories . Grinding Wheel and Flange x 1 set . Diamond Tool Holder (Table mounted type) x 1 pc . Tools and Kits x 1 set . Carbide Tipped Work Centers x 2 pcs . Coolant Equipment x 1 set . Hydraulic Pump with Tank x 1 set . Work Lamp x 1 pc Optional Accessories . Internal grinding attachment (Including 3-jaw chuck and one spindle) . Diamond tool holder for internal and external grinding wheel dressing (upward open type) . Diamond tool holder (Tailstock mounted type) . Diamond tool holder for internal and external grinding wheel dressing (sideward open type) . Angle trimming device . Radius trimming device . Cam locked driving dogs (6 pcs/set)) . Work steady rest (2 pcs/set) . 2-point steady rest . 3-point steady rest . Adjustable 3-jaw scroll chuck . Adjustable 4-jaw scroll chuck) . Magnetic coolant separator . Magnet with paper filter . Wheel forming device (Manual. no auto. compensation) . Wheel forming device (Automatic compensation)(NC) . Wheel balancing stand and arbor   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.