Tos BUA,BUB, BUC grinding machine

Tos BUA BUB, BUC HIGH PRODUCTIVITY Centre Grinding Machines The high-performance grinding machines of BUA series Practic and Profi versions, BUB series Practic, Profi and Multi versions, and BUC series Practic, Profi, and Multi versions are designed for precise grinding of several external cylindrical surfaces of different diameters, their adjacent faces, and transition radii on workpieces. In another version, they are suitable for grinding of internal cylindrical and tapered surfaces, and surface grinding of their adjacent faces. In its basic version, the grinder can be used for plunge-cut grinding or longitudinal grinding, with a fixed or oscillating table, successive plunge cutting with subsequent traverse regrinding. Face-surface grinding can be performed with the side of a grinding wheel, with the oscillation of a wheel head possible. Longitudinal grinding of tapers can be accomplished within the range of table swiveling or by the application of linear interpolation; sharp tapers can be ground on the workpieces that are clamped in a chuck. Radii can be ground using circular interpolation, and oblique plunge cuts using interpolation. A variety of methods is available for grinding wheel dressing. Workpieces can be ground being positioned between centers, in rests, overhung in a chuck or in collet, or on a magnetic clamping plate. The machines are suitable for grinding in single-part or small-series production as well as in large-series production. A grinding cycle can be controlled manually with the support of a control system or automatically. Thanks to the machine modular design, we can offer a wide variety of configurations in other versions. Basic Machine Design:

Upper swiveling table except BUC-C/6000

Wheel head in-feed with closed-rolling guide way

Control system SIEMENS Sinumerik 840D sl VM bars

Compact operator panel with membrane

Wheel head with roller-bearing spindle

Keyboard safety guard of grinding wheel

PLC SIEMENS Simatic S7 300

Work head manually swiveling and movable

User's software for the machine in the basic version

Tailstock manually movable with hydraulically remote diagnostics

Operating of tailstock barrel and cylindricity

Software-controlled swiveling of grinding unit correction axis B - Multi version only

Partial protection of working space with sliding doors and rear coolant splash guard

Digital AC servomotors with digital drive converters axes X, Z, and C9 switch

Electrical cabinet with cooling unit RITTAL

Brushless ring torque motor with direct automatic lubrication of guide ways and ball

Measuring in B-axis Multi version only screws of wheel head and table

Wheel head in-feed axis X and table traverse axis Z by means of ball screws

Cast-iron bed front and rear connected with pins and bolts Machining Possibilities:

External cylindrical grinding

Internal cylindrical grinding

Tapered grinding

Surface grinding

Grinding of transition radii

Grinding of oblique plunge cuts

Grinding of radii

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