Occupying just 3.8 sq m of space on the shop floor, a compactfive-axis machining centre with a working volume of 220 x 370 x 290 mm is now available from DMG Mori. The new DMU 20 Linear can meet a wide range of applications, from the micro-machining of watch components, through EDM electrode and impeller production, to die and mould making.

A rigid, FEM-optimised cast bed and thermo-symmetrical gantry design have been coupled with Magnescale axis position measuring systems to ensure long-term stability and machining accuracy to within single-figure microns.

The A-axis trunnion swivels from +130 to -93°, allowing flexible machining strategies and enhancing the operator’s view of the workpiece. The C-axis table rotates at up to 150 rpm, optionally 1500 rpm, while offering a positioning accuracy of two arcseconds. Zero-point clamping is standard, with the customer able to choose Erowa, Schunk or another make. There is also provision for the vacuum clamping of delicate or thin-walled workpieces.

The machine features a Fischer spindle (HSK 32, 42,000 rpm) as standard, although HSK 32 or HSK 40 spindles up to a maximum of 60,000 rpm are available. If elevated levels of precision are necessaryin combination with long running times, a shaft-cooled version is available for the HSK 40 variant. The tool magazine offers 26 pockets, optionally up to 60 tools, suitable for flexible production requirements with frequent tool changes.

For machining hard, brittle materials such as glass, Zerodur or technical ceramics, the machine is available as a third-generation Ultrasonic 20 Linear. In this model, tool rotation is superimposed with an additional ultrasonic oscillation, reducing the force generated by the tool during machining by up to 50%.

More information www.dmgmori.com

The Affolter Group, a world specialist in high-precision gear hobbing solutions, has launched its state-of-the-art AF140. The company’s newest gear hobbing centre is designed for small gears up to 40 mm in diameter and a maximum module of 1.0 mm. Positioned between and replacing the AF90 and AF100, the AF140 delivers the strengths of its predecessors while introducing next-generation automation and connectivity features.

Affolter’s AF140 was developed in close collaboration with users and industry partners to meet the growing demand for simplicity, compactness, versatility and ingenuity in gear hobbing. Designed primarily for the watchmaking sector, the machine is equally suited for precision applications in micromechanics, aerospace, automotive, micromotors, robotics and medical technologies.

“With the AF140, we’re offering our customers a perfect balance between performance, flexibility and innovation,” reports Mikael Affolter, head of sales at Affolter Group. “Its compact footprint makes it ideal for workshops where every square centimetre matters, while its compatibility with existing loaders and the option of a robotic arm provide new levels of automation and productivity. Combined with remote service features, the AF140 represents a true step forward in precision gear hobbing.”

The AF140 reaches cutter rotation speeds of up to 16,000 rpm and workpiece rotation speeds of up to 5000 rpm. A new and customisable robotic arm option for automatic loading and unloading significantly boosts the productivity of the AF140, enabling easy automation and reliable 24/7 production. At the same time, the machine remains fully compatible with established loaders such as W20, W25, W31, AF45, deburring units and more. Built on the powerful Pegasus CNC platform, the AF140 provides digital integration with IO-Link sensors, simplified commissioning, and advanced remote service for real-time support and updates.

More information www.affoltergroup.ch

With the introduction of the new UMILL 1000, EMCO is strategically expanding its range of universal machining centres in the five-axis simultaneous machining sector, thereby creating a bridge between the UMILL 750 and UMILL 1500 models. The new model was developed meet the growing demand for versatile, compact and powerful solutions that combine milling and turning operations in a single machine.

As a result of the synergy between the expertise of the Italian subsidiaries EMCO, EMCO MECOF and EMCO FAMUP, the UMILL 1000 represents a logical technical development of the proven UMILL 750. The project was developed as a concrete response to market demands for high productivity, application flexibility and easy integration into automated production lines.

The highly rigid portal structure made of cast iron and welded steel ensures optimum thermal stability and enables combined turning and milling operations on a single machine. Thanks to the 55 mm roller guides on the X and Y axes and the standard direct drives in the linear axes and torque drives in the A and C axes, this universal machining centre guarantees precise machining even with demanding workpieces. The machine offers generous travel distances (900 mm in X, 1000 mm in Y and 700 mm in Z), a large swivel range of the A axis (±125°) and a load capacity of up to 1000 kg.

The motor spindle with 15,000 rpm and a maximum torque of 138 Nm at a power output of 38 kW, standard with HSK-A63, enables effective material removal and perfect surfaces.
The tool magazine of the UMILL 1000 comes standard with 30 positions and can be expanded to 60 or 90 stations if needed, with quick change and random management to optimise time and ensure greater operating autonomy.

More information www.emco-world.com