Internal Grinding Machines
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Internal GRiNDiNG MACHiNES Precision Since 1936Made In Italy Robbi Group srl Via deN'Industna 7 37040 Veronella - VR Italia 39 0442 47700 39 0442 47966 robbi@robbispa.com www.robbispa.com

Maximum distance between headstock plate and grinding spindle attachment Spindle attachment Headstock plate Working Capacity Internal grinding diameter capacity Height of centers over table Cantilever weight2 Workpiece length3 Diameter of internal grinding spindle Table swivel Table speed Workhead rotation speed Workhead internal centre taper Self centering chuck diameter1 1 On Request 2 150 mm from workhead spindle nose 3 Maximum distance between headstock plate and grinding spindle attachment Height of centers over table Face Grinding Device Grinding diameter 355 mm Grinding wheel...

• Low thermal expansion • Excellent rigidity • Absorption of the vibrations \ Granite Base V_ \ Incremental linear encoder on both Axis v_ • Maximun positioning accuracy and repeatability • Excellent performance during the working in interpolation \ Roller Linear Guides v____ Maximum rigidity Speed and acceleration over the very low speed Elimination of stick slip. 1-150 mm from workhead spindle nose

\ Up to 4 grinding spindles on Rotating Turret V_ An important component of the IGU 400 is represented by the spindle turret that, in the maximum configuration, can be equipped with: • 4 spindles (one of which for external) • 4-spindles for internal grinding • tailstock to facilitate the grinding borecentering The tower has an integrated swivel axis that runs automatically and allows you to use up to 4 grinding spindles. The rotation of the turret is automatic and the positioning is accurate and precise ( the turret do not rotates in the versions numer 1 and 2)

SiMPLE HUMAN-MACHiNE INTERFACE PLC • Wheelhead and table position visualized on operator panel • Possibily to program up to 12 different diameters, on the same grinding cycle • Possibility to update the operator panel, with the correction of each diameter • Semi automatic grinding cycle, with stop of the grinding wheel feed once the programmed diameter has been reached • Automatic grinding wheel dressing cycle with compensation of all the grinding dimensions < X Movement of wheel head V V Z Movement of table V V Selection of the electronic handwheel division Working Cycles with Easy...

Simple Human-Machine Interface Accurate Geometric results In each cycle it is possible to correct eventual taper errors, interpolating the two axis X and Z. This permits, in a short time, to obtain very accurate geometric results. Easy programming The machine operator may create a program, even complex, without ISO programming knowledge. Guided Compilation The compilation of the parameters is guided by a series of messages and icons that explain step by step the meaning of the various parameters. The programming of the working cycles is done by filling the same parametric working cycle....

At Your Service Since 1936 Robbi has operated in the machine tool market since 1936 and specialise in the manufacture of machines tailored to meet the more demanding needs of the customer’s complexed and more specialised demands. Whilst maintaining competitive prices, Robbi have ensured their machines have stability and precision. Robbi grinding machines, use the best technology and the most robust and reliable components available on the market in their build programme. Robbi have a commitment to assist and help, proactively, its customers to ensure they maximise the efficiency of the...