LTF 662.00 GRINDING MACHINE WITH REINFORCED COLUMN EXTRA TYPE WITH ROTARY TABLE AND MAGNETIC PLATE USED MACHINE, FULLY OVERHAULED AND COMPLIANT TO SAFETY REGULATIONS FEATURES • Base and column support arm: made of monolithic cast iron of the highest quality with ribs in the points subjected to the greatest stress, so as to allow maximum rigidity to the grinding wheel head. • Grinding wheel motor head: composed of a special three-phase motor with external ventilation and dynamically balanced, whose large spindle rotates on special bearings suitable for high speeds, with automatic backlash recovery. • Column: cast iron, hinged on the special arm by means of large adjustable tapered roller bearings, to allow maximum rigidity to bending. • Rapid vertical feed: obtained by means of a graduated handwheel that acts on a pair of helical gears, so as to allow a feed of 2 mm with each turn. • Micrometric vertical feed: by means of a pawl placed on the handwheel drum; it can be engaged or disengaged, allowing direct readings on the handwheel vernier of 0.01 mm. ACCESSORIES SUPPLIED • refrigeration system with electric pump • grinding wheel holder complete with cup wheel • protective casing • service keys • New electrical system with very low voltage controls • permanent magnetic chuck diameter 400 mm TECHNICAL CHARACTERISTICS ART. 662.00 Distance between column and grinding wheel axis mm 260 Max. distance between table and grinding wheel mm 280 Max. grinding surface mm Ø 400 Rapid feed for each handwheel turn mm 2 Micrometric feed with pawl mm 0.01 Cup grinding wheel dimensions mm 200x80x78 Table Ø mm 400 Rotating table speed with gearmotor No. 2 Rotating table revolutions per minute No. 20-40 Rotating table motor power kW 0.33-0.4 Grinding wheel revolutions per minute No. 2,800 Grinding wheel motor power kW 3 Electric pump power kW 0.11 Three-phase power supply ～50 Hz V 220/380 Overall dimensions mm 950x1050x1,700 Net weight kg 650