High-precision, five-axis machining of components up to 2300 mm long may be carried out productively on the new DMF 200|8 travelling-column machining centre from DMG Mori. Offering travels of 2000 x 800 x 850 mm, the DMF 200|8 offers users in the aerospace and mould-making industries, for example, scope to machine long components up to the maximum table load of 2000 kg. Rapid traverse in the linear axes is 50 m/min as standard, but with an optional linear drive in the X axis, the machine reaches 80 m/min. Holistic cooling throughout the machine delivers long-term accuracy and tight tolerances.

The B-axis milling head with 6000 Nm maximum clamping torque offers a swivel range of ±120° for flexible five-axis machining. A 15,000 rpm speedMASTER spindle is standard, while an extensive choice of other modular spindles is available, including a 200 Nm high-torque variant and a 20,000 rpm high-speed version. All come with a 36-month warranty, regardless of running hours.

DMG Mori’s new machine is equipped with a Siemens control and the latest version of the company’s proprietary APP-based user interface, CELOS. So users are well equipped for digitalised production and automation, for example through the attachment of the manufacturer’s PH Cell automatic pallet changer.

The DMF 200|8 features a novel tool change mechanism, which takes place behind the table for fast, safe, collision-free cutter exchange, so the entire clamping surface is available for use. Compared with the predecessor model, the working volume is over 50% larger, creating new possibilities for machining complex components. The ability to employ 400 mm long tools is said to be a unique selling point in this machine class.

For further information
www.dmgmori.com

Speedio 30-taper, three- to five-axis machining centres built by Brother are able to produce components in such short cycle times that it is difficult to load raw material and unload finished parts by hand quickly enough. So to maximise production efficiency, the Japanese machine manufacturer introduced a robotic handling system, Feedio, at the EMO machine tool show in 2017.

Now, an automated cell comprising both products is available for demonstration in the showroom of UK sales and service agent, Whitehouse Machine Tools. The cell can show manufacturers the suitability of the configuration for unattended and overnight running in high-volume production environments.

A Speedio M300X3 trunnion-type, five-axis mill-turn centre has been chosen to demonstrate the benefits of the Feedio automatic load/unload system. The machine is able to perform prismatic and rotational metal cutting in one hit within a 300 x 440 x 305 mm working volume.

Notable features include a BIG-Plus face-and-taper contact spindle that accelerates from zero to 16,000 rpm in 0.2 second, a -30 to +120° tilting table axis, high-output turning capability that generates a maximum torque of 102 Nm and rotational speeds up to 1500 rpm from zero in less than 0.3 second, and a Brother control with increased memory for holding multiple programs.

To extract the most from this specification, the machine is linked to a Feedio component storage and robotic handling system developed jointly by Brother and ABB. This plug-and-play automation solution is able to serve either one machine, or alternatively two to enable op 10 and op 20 machining of prismatic parts on six sides. The automation unit is designed specifically for Speedio machines, rather than being a generic solution provided by a third party.

For further information
www.wmtcnc.com

In August 2021, a pair of BT40 vertical machining centres built in Taiwan by Leadwell was supplied by UK and Ireland agent WH-Lead to the Holmfirth factory of HB Bearings, which less than a year previously had increased its turnover by one third through the acquisition of Gamet Bearings.

Low-volume manufacture of both bearing ranges, which include precision radial, taper roller, deep groove ball, cylindrical roller and angular contact, as well as many other types, is now under one roof at the Holmfirth factory, where a purpose-built extension houses some of the production equipment from Gamet Bearings.

The new Leadwell machines, a four-axis V-30iF model with rotary table and a five-axis V-40iT trunnion-type machining centre, strengthen the company’s production capacity. A wide range of materials are involved, including stainless steel, tool steel, plastics, bronze, aluminium and exotic alloys. The bearings are often specials, new designs or obsolete types that may need to be reverse-engineered to keep old manufacturing plant, steel mills, mining equipment, oil rigs or classic cars in operation.

Graham Hirst, managing director of HB Bearings/Gamet Bearings, says: “We have prioritised the purchase of these Taiwanese machines ever since we bought our first one, a machining centre, more than 25 years ago. We sold it when the two new machines arrived, with a view to pre-empting its eventual failure. However, right to the end it still milled dowel holes in 62 HRc steel to within 10 µm.

“We now have five machining centres from Leadwell, including two recent models installed in August 2017, which are just as well-built, accurate and reliable.”

For further information
www.wh-lead.co.uk