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JRI Medical solves component clamping issues with Hainbuch
JRI Medical solves component clamping issues with Hainbuch
JRI Medical solves component clamping issues with Hainbuch

JRI Medical solves component clamping issues with Hainbuch

Added to MTDCNC by HAINBUCH UK Ltd on 10 November 2014

When JRI Medical, a specialist in the production of orthopaedic implants and surgical instruments started to notice a growing complexity of its components and an ever increasing diversity of the types of material being used, it decided to investigate its workholding techniques and methodologies.

Some ten years ago, the Sheffield based manufacturer started to acquire new plant and this is what led JRI Medical to investigate its component clamping. Down the years, this acquisition trail has included machine tools from Nakamura and Doosan for producing complex parts in average batch sizes from 5 to 15 parts.  

To manufacture these complicated parts for the medical and orthopaedic sectors, JRI Medical started to experiment with various types of workholding systems as well as chucks and collet chucks for its turning centres. One consideration that had to be accounted for; was the potential marking of implant grade cobalt chrome, titanium, and stainless steel that was machined at JRI Medical on a daily basis.

The nature of flexibility required and the care extended to the machined parts meant that only Hainbuch could provide the appropriate solution for the medical specialists’ workholding demands. For the turning department, Hainbuch supplied its line of quick change chuck systems. With a high level of repeatability, rigidity and high clamping forces, the Hainbuch quick change chucks proved the ideal solution for the repetitive turning of small batches of parts with varied clamping diameters.

The parts turned at JRI Medical tend to range from 5 to 65mm diameter with the majority of product lines being between 35-65mm diameters. With Hainbuch’s fast change collet chuck system, the operator can change the collet for the relevant diameter component in a matter of seconds. This has delivered significant savings with regard to machine downtime and increased machine utilisation. Furthermore, the fast change system has simplified machine set-ups for the operator whilst improving the consistency of component quality. This is credit to the remarkable repeatability of the Hainbuch system.

The success of the Hainbuch system in the turning department has now seen JRI Medical introduce the innovative Hainbuch Manok clamping system to the milling department. Commenting upon this introduction, JRI Medical’s Principle Process Engineer, Mr Ian Chambers said: 'We have enjoyed the Hainbuch technology for years on the lathes and when we recently needed a system for our machining centre, we thought why not see what Hainbuch have to offer. So, we invested in the Manok system. It is very easy to set and very easy to change collets. In addition, it’s a pull collet, so the parts are always ensured to be firmly secured within the collet and they won’t move, even if we hit them hard with the spindle.'

The benefits of the Hainbuch line have been evident for JRI Medical. The company has reduced its set-up times and changeovers, resulting in improved machine uptime and productivity. Added to this, the high value components have no markings from the workholding or machining process, which is an aesthetically pleasing factor for the customer. From a quality perspective, the improved rigidity, clamping strength and repeat clamping accuracy has enhanced the component quality and consistency on batch runs.

As Mr Chambers concludes: 'In all Hainbuch products are quality, they are accurate, easy to set, easy to use and never give us a problem. We are really pleased with the solutions we have invested in.'

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