New Hardinge ‘ultimate bar machine’ gives user choices

The newly introduced Hardinge Conquest H51 turning centre gives specifiers the option of purchasing either a high precision (HP) machine or a Super Precision® (SP) specification for those requiring sustained 0.5 micron surface finishes.

The introduction follows closely on the announcement that The Engineering Technology Group will in future be undertaking the UK sales and technical support for the Hardinge Super Precision range of turning centres to add to its extensive portfolio of Hardinge and Bridgeport machines.

Hardinge has named the high precision H51 the ‘ultimate bar machine’ as it features a 20hp, 5000rpm A2-152mm main spindle with a 50.8mm bar capacity. It offers a generous maximum turning diameter of 312mm and a maximum turning length of 64.7cm. The 12 station turret offers a ½ station index for up to 24 tools.

The machine offers a wide variety of standard features such as through-tool coolant, bar feed and chip conveyor interfaces, three position stack light, PSMCIA memory card, rigid tapping and many others including state-of-the-art machine crash protection. The machine is offered in a number of configurations depending on which option is selected, add on’s including a tailstock, live tooling, a sub spindle and a Y-axis.

The machine is designed with accuracy in mind in all component areas – both the SP and HP machines have a programmable resolution of 10 millionths/.1μm. Also, the hydraulic module is located at the rear of the machine in the detachable utilities system platform in order to mitigate any heat related issues.

The SP version of the machine features linear scales in the X-axis and scales are available on the Y and Z axis as well. Featuring the Hardinge quick change collet-ready spindle, as with all Hardinge SP machines, the H51 machine sets the standard for super precision turning.

Performance specifications are impressive: part roundness on the main spindle is maintained at .5 micron; continuous machining accuracy deviation on the workpiece diameter is within .5 micron and part surface finish on the main spindle is .25 micron.

The CONQUEST H51 is offered with either a Fanuc 0i-TD or Mitsubishi M720V control, each packed with a host of standard features.

On the new product introductions, Martin Doyle, Sales and Marketing Director at ETG comments; “This new product re-inforces Hardinge’s leadership in the field of high-precision and Super Precision® turning as well as its commitment to producing the highest quality machines. ETG’s partnership with Hardinge is an on-going success story and these new machines are welcome additions to the product portfolio.”


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