Industrial Honing Machines
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Horizontal Lyor Honing Machines Precision Since 1936 M a d e I n I ta ly Robbi Group srl Via dell’Industria 7 37040 Veronella - VR Italia 39 0442 47700 39 0442 47966 robbi@robbispa.com www.robbispa.com

Lyor - Horizontal Honing Machines • Horizontal honing machines LYOR are distinguished by their rigidity and power. • Honing head movement with recirculating ball screw • Spindle transmission by gearbox and 2-speed gear (ground and hardened gear ) to transmit the maximum power • Spindle rotation with three-phase electric motor, controlled by vector inverter with forced ventilation • Easy operation programming • The touch-screen displays all the working data and enables the operator to attend during the worki

Bore diameter (Min-Max) mm 20-400 Max cylinder length to be honed mm 2000 3000 4000 5000 6000 7000 Max Honing Head Stroke mm 3000 4000 5000 6000 7000 8000 Steady rests for honing head extension n 1 2

Besides the honing head spindle with the honing stone hydraulic expansion, a second spindle rotates the cylinder in the opposite direction to the honing head. asing the heat dispersion produced by the honing process (on machines without rotation, the heat is concentrated on the top part of the cylinder where there is less honing oil). Technical Specifications . Max admitted Diameter in:-a—i- Coolant pump

Lyor M The cylinders to be honed are placed and clamped on prisms. The hydraulic expansion of the honing, rotates inside the cylinder to be honed. Technical Specifications Distance spindle centre to floor_ Coolant Pump

[ Features ^ • adjustment of head stroke end from operator panel • head movement roll guides • hydraulic expansion of honing tool stones • instant and uniform abrading action • possibility to remove considerable stock removal quickly and efficiently while maintaining tight tolerances and accurate precision • centralized coolant plant • possibility to install filtering and cooling systems • variable spindle rotation speed with gear rpm change (max. is obtained from the spindle torque) [ 0,1 mm Precision guaranteed on head movement reverse ^ • Transmission of vertical head movement with...

• Electric equipment • Hydraulic equipment (without oil) • Coolant equipment (without oil) • Mechanical clamping fixture • instruction manual • Honing tools with hydraulic expansion • Extension bars for honing tools • Stone-holders for honing tools • Abrasives stones • Hydraulic clamping fixture • Bed with through hole • Coolant clarifier Honing Diameter .. ___ Hydraulic Clamping Fixture (extra) Hydraulic clamping fixture (extra equipment) permits a fast and steady camping of the cylinder. The system allows to obtain a higher degree of honing roundness. The main plate is equipped with...

Honing Tools Abrasive Stone Expansion System of the Honing Tools Honing Tool Extension Bar The EXTENSIONS BARS are manufactured considering the length limits specified in the table on the next page Steady rest for honing head extension bars

Honing Stones Holder Honing Stones Length mm Qjarri^ters N Extension Bars Length The Honing Tools TLY, TMY and TOY use abrasive stones of different length Cod LYOR (horizontal honing machine) can use TMY and TOY honing tools YUM (vertical honing machine can use TLY, TMY and toy Honing tools

The 'touch-screen' control panel permits an easy programming and management of all the operating parameters performed by the PLC: • position of honing head inversion points • position of honing head for component loading/unloading • honing stone expansion pressure (On request, honing head expansion stroke is controlled by a mechanical stroke end, with micrometric adjustment) • working speed of honing head longitudinal movement • positioning speed of honing head • honing head rotation speed • workhead spindle rotation speed (only for LYOR-S ) • number of honing strokes • number of finish...

Horizontal Honing Machines Gallery Work Head (s only) Honing Head Steady Rest, self centering (hydraulic closing - S only)

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...