New Heckert T55 machining centre from Starrag

Starrag has announced the second – and larger capacity – member of its new Heckert range with the launch of the T55 five-axis horizontal machining centre for the multi-tasking and complete machining of workpieces weighing up to 700 kg.The machine can perform single set-up milling, turning, drilling, gear-cutting/skiving and pointing to accuracies down to 3 µmdue to the interaction between its temperature- and vibration-stable mineral cast machine bed and the double symmetrically-mounted rotary drive unit.

Drive elements such as planet carriers and wheel hub drives for commercial vehicles, agricultural machinery and industrial applications are typical applications.With pallets of 500 x 630 mm and X, Y and Z-axis travels of 850, 1020 and 1000 mm respectively, the T55 is of compact, robust design and has a low-vibration rotary drive unit specially designed for turning operations – plus a dynamic main 72 kW spindle rated at 15,000 rpm and 292 Nm. Acceleration rates are up to 10 m/sec², while rapid traverse is 80 m/min. The NC rotating table carries a rating of 900 rpm and the HSK-T100 toolholder also encourages high chip removal rates.

Although the T55 can machine components with a workpiece contour of 900 mm, chip-to-chip time is only 4.3 seconds and pallet change time is 14.5 seconds. Like its smaller stablemate (the T45), the new T55 is ergonomic, and easy and reliable to operate, while workpiece loading is easily automated by pallet storage units or robots.

Indeed, the success of a two-T45 machine cell with robot load/unload saw a drive manufacturer double productivity, halve overall machine footprint and reduce tool and handling costs by 40%. The T55 could easily mirror this performance on larger workpieces.
For further information www.starrag.com

MACH Machine Tools unveils knee-mill series

MACH Machine Tools, part of the Vigilance Group and a supplier of CNC andmanual machines, is introducing a range of flexible, high-productivity CNC knee mills, comprising the MACH MDS 700-4T and MACH MDS 900-4T models. Both are equipped with the three-axis DynaPath WinDelta control and feature integrated, four-station automatic tool changers positioned around their directly driven BT40 (5000 rpm) spindles. The machines come with large worktables (up to 1470x 320mm) that support loads up to 220kg.

The DynaPath control, available on all new CNC lathes, toolroom mills and machining centres from MACH Machine Tools, is one of the most widely used control systems in the world.Used extensively in the US and Far East for over 50 years, MACH Machine Tools says that the control is flexible, versatile and easy-to-use – providing customers with simple-to-understand navigation and operation screens, and accommodating ISO and conversational programming on the same platform.

With online CAD editing capabilities, semi-auto functions and DRO operation, as well as the ability to run programs of unlimited size, top-of-the-line dynamic motion control and the system’s revolutionary 24/7 remote diagnostic control – the company says that it is clear and understandable why the DynaPath control is becoming the preferred option for experienced and aspiring manufacturers.

Says Dave Andrew, managing director of the Vigilance Group:“Knee-mill technology has come on leaps and bounds over the past few years and we are at the head of these developments.Our MDS 700-4T and MDS 900-4T machines, equipped with the DynaPath control system and integrated tool changers, demonstrate that toolroom mills that deliver increased and improved productivity, flexibility and process efficiencies.”
For further information www.machmt.co.uk

Protolabs expands production capabilities

Digital manufacturer Protolabs is expanding the production capabilities of its global CNC machining service, creating new opportunities for product development worldwide. Customers who upload a 3D CAD model to the online quoting platform can now access a range of better-qualified suppliers through Protolabs’ digital supply network. The seamless transition between in-house and network production options opens up a wealth of advanced machining capabilities designed to reduce part costs, increase tolerances and provide a broader range of finishing options.
For further information www.protolabs.com/en-gb

NTG invests in more five-axis capacity

NTG has put its first machine into a new facility in Gateshead and at the same time increased its five-axis machining capacity.The subcontract manufacturer remains on the Team Valley Trading Estate in Gateshead, but has massively increased the size of its premises, up to 45,000 sq ft, from 18,000 sq ft.The first machine into the new facility is a new Mazak VariAxis i-800 NEO.

Mike Hutchinson, group managing director at NTG Holdings, says the investment in both the new facility and the new machining technology opens up opportunities for his company: “Our five-axis capability has become a bottleneck due to demand from customers for this type of complex work. The new machine will enable us to offer shorter lead times by reducing the restrictions around our five-axis work.”

The VariAxis i-800 NEO is a five-axis vertical machining centre that delivers advanced high-speed multiple-surface machining in a large machining area. It will be followed by another 50 machines that will be transferred to the new facility in the coming weeks, including Mazak turning centres, Integrex multi-tasking machines and vertical machining centres.

“We’ve increasingly diversified the business from its roots as predominantly a tooling and oil and gas focused supplier,” explains Hutchinson.“We now operate across defence, food production, energy, subsea, electric vehicles and renewables. The new facility will give us the footprint to be able to continue to grow and service all our sectors, while also giving us the footprint to introduce more capacity and new technologies in the future.”

Mazak has been a long-time partner for NTG, helping the company make the move into complex five-axis work more than a decade ago.
For further information www.mazakeu.co.uk

New entry-level five-axis machining centre

At the recent DMG Mori open house held at the machine tool manufacturer’s Pfronten factory in Germany, a new five-axis machining centre was launched aimed at the entry-level market. Less than 2 m wide, the compact, competitively priced DMU 40 is capable of fully interpolative five-axis machining to within microns inside a 550 x 450 x 420 mm working volume.

Of trunnion-mounted rotary table design, the machine is based on the DMU 50 3rd Generation, of which more than 10,000 have been sold worldwide.The one-piece machine bed is made from grey cast iron, while the optimised geometry of the Y- and Z-axis slideways and the inline spindle with hydraulic clamping further ensure high rigidity. In addition, direct-drive ballscrews in the X and Y axes improve surface quality. For machining flexibility, the swivel range of the B axis extends from -35° to 110°.

The ergonomic design of the DMU 40 offers optimal accessibility to the work area. Table loading height is 800 mm and the distance from the operator to the table centre is short, while it is also possible to load components by crane. A large window and improved lighting provide good visibility. Optionally, the tool magazine may be loaded from the front.

There are three machine options with different equipment packages to meet individual requirements. The standard DMU 40 has a 12,000 rpm spindle and 24-position tool magazine, while the DMU 40 PLUS features a 15,000 rpm spindle and a tool magazine with 30 pockets, linear scales and passive cooling of all main components. Finally, the DMU 40 PRO is the most accurate and productive model, with active cooling and a 20,000 rpm spindle.
For further information www.dmgmori.com