FERMAT Cylindrical Grinding Machine Model BHM 50/2000 w/Siemens 828D It is a fully CNC controlled grinding machine with controlled axis X (grinding wheel head in-feed), Z (longitudinal table feed), and controlled axis C (grinding wheel peripheral speed). FERMAT began in 1990 and was founded by Jiří Ferenc and Mr. Matys, whose last names were used to form the company name. From the outset, FERMAT has benefited from the solid professional ethics of family and friends to guide its excellence. Through strong growth and strategic acquisitions in the Czech Republic and the United States, FERMAT has become the leading manufacturer of the most powerful and accurate horizontal boring and milling machines and cylindrical grinding machines, providing machine tools for all major markets worldwide. Today, FERMAT has more than 470 employees on three continents, producing more than 100 machines a year. FERMAT's main production and assembly facilities are in Brno, the second largest city of Czechia and Lipnik nad Becvou, to the north-east. As FERMAT continues to expand its machine tool range, this capital expansion will continue.
|ワークヘッド パワー||15 hp|
|ワークヘッド スピード||0 RPM|
|最大重量 センター間||2,200 lb|
|大きさ||303"x 98.42"x 86.61"|
It is a fully CNC controlled grinding machine with controlled axis X (grinding wheel head in-feed), Z (longitudinal table feed), and controlled axis C (grinding wheel peripheral speed). The grinder is designed for controlled grinding of rotation cylindrical and conical external surfaces of medium-weight workpieces by longitudinal or plunge-cut grinding methods. As a matter of course, form grinding and grinding of various transitions among different diameters can be performed. The grinder also allows grinding of face surfaces and grinding of cylindrical and conical internal holes with the use of internal grinding attachments. The workpieces may be clamped between centers or by flying-mode into the chuck. The drive headstock as well as grinding wheel head may be inclined for grinding cones. It is possible to grind either at the centers or in the flying-mode with the workpiece clamped in the chuck or on the magnetic plate. The grinding wheel head and table are moved in the line by ball screws and servomotors. The BHM CNC is designated for workpieces weighing up to 1 000 kg. Cylindrical grinding machine BHM CNC can be additionally equipped with automatic balancing system, in-process gauge, axial probe, super finish attachment, automatic (electric) rests, X Z ruler etc.
Control system Siemens Sinumerik 828 D Max. diameter of grinding: 20" Max. length of grinding: 78.74" Max. weight of workpiece between centers: 2,200 lbs Max. weight of workpiece with live spindle: 264 lbs Device for internal grinding YES Main motor power: 15 HP Grinding unit - X axis Min. programmable infeed 0,0001 mm Rapid feed rate 8 m.min-1 Table - Z axis Min. programmable infeed 0,0001 mm Rapid feed rate 8 m.min-1 Wheel head Grinding wheel dimensions (dia. x width x bore) mm Ø 500 x 80 x Ø 204 Diameter of worn-out wheel mm Ø 380 Grinding wheel peripheral speed rpm 10 – 50 Wheel head swivel ° +15/–180 Work head Work head swivel ° 0-90 Work head spindle taper bore - Morse 5 Tailstock Tailstock barrel taper bore - Morse5 Tailstock barrel stroke mm 40 Cross motion of tailstock centre - cylindricity correction mm ±1 Tailstock clamping force N 50-7000 Other specifications Sinamics S120 Ball screw KSK Kuřim Cooling Astos Aš Lubrication Tribotec Machine dimensions l x w x h 303"x 98.42"x 86.61" Machine weight: 19,580 lbs