Precision Air Bearing Rotary Table Installation Promotes New Interest In Oceanographic Research

Following the successful installation of a 1.4m air bearing rotary table, Kuroda Jena Tec has seen a significant increase in enquiries and demand for repeat and similar air bearing rotary tables within Europe from oceanographic related research institutes. Within 2014, Kuroda Jena Tec supplied a custom designed Air Bearing Rotary Table (ABRT) to the Institute de Recherche sur le Phenomenes Hors Equilibre located in Marseille, France. www.irphe.fr . The brief was demanding in that a non-symmetrical load of 1,000kg needed to rotate at 90rpm with a speed variation of +/-0.1%. Due to the specific nature of the research by IRPHE, a smooth rotational performance was necessary without vibration hence the choice of an air bearing in the horizontal plane that allowed minimal effects from vibration caused by conventional bearings combined with a dampening low noise belt drive and servo motor system.

Due to the incumbent load being a tank of seawater, special consideration was needed for corrosion protection and electrical insulation with the requirement to install an 18 channel slip ring for power and control instrumentation. This was necessary to allow IRPHE to mount various monitoring devices on the table surface while the table rotated. For a video link of the rotary table click here. Provided with a complete software package and customised software, the unit was able to provide custom software programmes for various planned testing including defined ramp up, ramp down, specific cycles at programmed speed and the option for oscillation cycles within a defined percentage of rotational speed. Kuroda Jena Tec provides standardised and customised air bearing rotary tables from 500mm to 2m in diameter for a variety of machining, testing and inspection applications. For more specific information please refer to http://www.jena-tec.co.uk/rotary-tables.php Additionally Kuroda Jena Tec has extensive experience in the field of high precision linear and rotary motion components and sub-assemblies including ballscrews, linear modules, linear actuators, motorised spindles and rotary table. For more information please go to www.jena-tec.co.uk

Jena Tec Launches Precision Rotary Tables

Jena Tec announces two further models to its linear and rotary motion ranges in the field of precision rotary tables. The first model, the MRT230 is a lightweight ring grinding unit driven by a pancake segmented motor via a gearbox and toothed belt. The cast alloy base plate allows bolting directly to a grinding machine table.

Mounted on the rotary axes employing ABEC 7 angular contact bearings is a magnetic chuck, 230mm diameter providing load capability of up to 30kg. The central 40mm location spigot allows location of fixturing and the unit can be supplied with a variety of 3 jaw chucks and t-slotted face plates on request. The unit is supplied complete with an electrical control box providing infinitely variable speed control up to 120RPM. The MRT230 is an ideal solution for rotary grinding of bearing spacers and other applications where constant surface finish is important combined with accurate parallelism.

The second series is the ABRT Series Air Bearing Rotary Table. This expansive range provides a highly accurate rotational motion in either manual or CNC mode with minimal effort through the provision of an air bearing cushion. The unique hydraulic clamping mechanism allows rigid clamping for heavy duty machining. With table diameters from 500mm to 2000mm and table loading up to 10,000kg with repeatability of +/-0.2 arcsecs, the range is an exceptional high quality attachment suitable for a variety of applications in boring, milling, grinding and inspection.

The ABRT series can be provided with a torque motor option, encoder feedback and digital readout and can be fully integrated within a CNC control. Jena also offer an industrialised PC based CNC control allowing retrofitting to existing manual machine tools. Customised designs of ABRT rotary axes can be provided on request relating to higher loading, diameter, acceleration and tolerances.

For further information, go to http://www.jena-tec.co.uk/ or alternatively contact our sales office on +44(0)1623 726010 or by email sales@jena-tec.co.uk