Monday, February 29, 2016

Development of ultrasonically assisted machining capability

Kuroda Jena Tec, an established manufacturer of motorised machining spindles for grinding, milling and turning has seen active growth in new orders for contract research in the field of ultrasonically assisted machining. Since 2011, Kuroda Jena Tec has developed ultrasonically assisted grinding spindle prototypes for heavy duty grinding of hard materials through the development of a modular grinding unit providing 20kHz frequency oscillation axially between 6-12 microns. This exciting process capability provides some clear benefits in terms of material processing speeds, tool wear and mechanical material properties. Designed in-house to provide different characteristics according to the application, Kuroda Jena Tec have subsequently designed and supplied a light weight drilling spindle with up to 40kHz oscillation for composite materials to a leading UK research organisation. Further development and application work is planned in this exciting area with research organisations and other leading machine tool OEM's.
For more details on how Kuroda Jena Tec can supply your requirements please visit our websites on

Monday, February 22, 2016

Modernisation of Production Machinery

In a similar vein to design of new automation equipment, Kuroda Jena Tec is a one stop shop for automation and machinery components and has utilised this capability for the modernisation of production machinery both internally as well as for external customers. The example shown below is an Okamoto surface grinding machine that underwent a complete mechanical refurbishment of spindle, bedway as well as replaceable components and hydraulics system. The refurbishment was conducted within Kuroda Jena Tec's UK facility and overhauled within a 4 week period before being returning to the customer production facility.
Similarly a leading machine tool producer's service department had a modular grinding attachment used to grind spindle tapers in-situ and Kuroda Jena Tec was pleased to refurbish this unit and renovate it back to original specifications. The attachment was stripped and serviced with a change of bearings, re-grinding of the tool interface and refurbishment of all other serviceable parts.
At the other end of the scale in terms of complexity and contract value, Kuroda Jena Tec's transfer machine know-how came into play when performing a major $1m retrofit and turn key upgrade to a 3 station Marwin rotary transfer line for a 1st tier automotive supplier which comprised of multiple new machining spindle heads and gearboxes, hydraulic slides, guarding, fixturing and new PLC programming for additional machining operations to be utilised on a new part variant. The 6 month contract entailed design and manufacture of modules followed by a site installation over a 3 week shut down period before successfully returning the machining line into production.
More great examples of the versatility of the Kuroda Jena Tec group. For more details on how we can supply your requirements please visit our websites on

Design & Manufacture of Automotive Testing Stations

Kuroda Jena Tec's capability in linear motion components and asset repair is well known but additional automation capability is becoming an increasing demand of Kuroda Jena Tec's UK facility as requests from customers for more value added services increases. A recent example is the design, manufacture, assembly and test of a special purpose automated test rig for an automotive customer for engine components to determine whether sand from the casting process was contaminated in the component prior to subsequent machining operations. Kuroda Jena Tec worked with the customer to originate a specification of testing station able to automatically process aluminium engine parts at a high throughput rate and use air flow to determine go or no-go process limits. Where parts had insufficient airflow, they were automatically ejected from the production line for further inspection and rectification. Kuroda Jena Tec undertook the complete turnkey system design through to implementation in the customers' production line. For more details on how Kuroda Jena Tec can supply your requirements please visit our websites on