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Hardinge Machine Tools, which supplies products for aerospace, automotive, medical, energy, construction, mould, tool and die applications, will demonstrate its grinding technology at Mach 2010.

Alongside Hardinge lathes and Bridgeport machining centres, which will help make up a display of nine machines under power, the company will showcase grinding machines from Jones and Shipman (J and S), a provider of machine tools and grinding technology, following the acquisition of the business in April.

The Hardinge GS51A, with a 10-platen patented modular magazine and collet-ready spindle, combines precision, high productivity and a machine utilisation capability and is priced at less than GBP80,000.

The RS range of super-precision, multi-tasking turning centres will also be represented at Mach 2010.

The RS65MSY machine is said to meet the challenging demands of hard milling and turning with the power of 22kW and 365Nm of torque, along with the added flexibility provided by a Y-axis cross feed to the 12-station turret that services both the main and sub spindle.

The machine also provides high precision through the use of linear-scale positioning, achieving a continuous machining accuracy within five microns.

To meet the demand for five-axis machining technology, two machines will be under power.

New from the Bridgeport stable is the five-axis GX250AX, a compact vertical spindle machining centre (VMC) with the high level of functionality available through the Heidenhain iTNC 530 simultaneous control and Heidenhain’s drives and linear-scale positioning technology.

The VMC is said to have a greater-than-normal working envelope for its compact construction; the trunnion and rotary table have a capacity of 250mm in diameter by 240mm in component length.

The machine also features an optional 20,000rev/min high-speed spindle.

A greater five-axis working envelope is being demonstrated on the latest generation of bridge-style XR Series VMCs, represented at Mach 2010 by the XR 600 5AX.

The XR 600 5AX has an X axis of 885mm, a Y axis of 800mm and a Z axis of 500mm with -30deg to +120deg in A and a full C axis.

The maximum swing is 600mm and the workpiece height of 450mm can be accommodated, with the table able to accept loads weighing up to 300kg.

A choice of three direct-drive 25kW spindles with 12,000rev/min as standard (and 9,000rev/min and 15,000rev/min as options) are fed by a carousel tool magazine with 48 positions (or 60 positions as an option).

Chip-to-chip automatic tool exchange is within 4.9 seconds, according to Hardinge.

Control is via the Heidenhain iTNC530.

Alongside the GX will be the Bridgeport XR1000, a heavy-duty-build VMC that now features the 18,000rev/min HSK A63 spindle development to complement options of high-torque 9,000rev/min and 15,000rev/min spindles.

With 30 tool positions, X-axis travel is 1,020mm, while Y and Z travels are 610mm.

Control options include the Heidenhain iTNC 530 and the Fanuc 18iMB.

The Bridgeport GX 480, developed as a compact 480 x 400 x 330mm-capacity VMC suitable for use in the subcontract industry, has been upgraded for Mach 2010 with the latest Siemens 828D control system, featuring Shopmill graphical programming with simplified tool management and setting through CNC direct keying functions.

Expanding the Kellenberger grinding division of Hardinge, the J and S Suprema cylindrical grinding machines will be exhibited at the event.

The Suprema can be specified with multiple wheel-head options, including a plain 90deg approach, angle head or universal wheel head with two external wheel spindles and one internal wheel spindle.

Fanuc hardware or touch-screen control with the Easy software ensures simple setup, thus minimising changeover times.

Meanwhile, the high-precision J and S Techmaster surface grinders also demonstrate the same touch-screen control and J and S Easy surface and profile grinding software suite, designed for quick setup in tool-room-type operations or batch-/full-production environments.

The J and S surface grinding range provides table capacities from 200 x 500mm to 600 x 1,200mm and a range of dressing and workholding options, including indexers and rotary tables.

Also due to be exhibited is the Kellenberger Kel-Vista CNC cylindrical grinding machine with the new ‘Kel-Portal’ auto-loading system.

The system is said to be compact, flexible and fully integrated into the machine to enable changeovers to be accomplished in less than 15 minutes.

Hardinge Machine Tools

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