Back on the investment trail with a vengeance

Mills CNC, the exclusive distributor of DN Solutions’ (formerly Doosan) machine tools and a major automation systems’ provider to UK and Irish component manufacturers, has recently supplied precision subcontract specialist, Lenane Precision, with a new DVF 5000 simultaneous five-axis machining centre.

The machine, the third DVF 5000 to arrive at the company in as many years, was delivered and installed at Lenane’s modern production facility in Shannon, County Clare in September 2022. Notably, the latest DVF 5000 has significantly increased the company’s machining capacity and capabilities, and is seeing use at this moment in time to produce a range of complex components for aerospace and medical device customers. These components, made from aluminium, stainless and titanium, have intricate features, tight tolerances and exacting surface finishes.

Says Jim Lenane, managing director at Lenane Precision: “Machining prototypes and first-article components for the highly regulated aerospace and medical sectors means that there is little room for manoeuvre or discrepancy from product design to production result: parts need to be right first time, every time.”

He adds: “The new DVF 5000 has been deliberately positioned adjacent to the flexible automated manufacturing cell that was installed in March 2020. The new DVF 5000 complements and works in tandem with the cell.”

The automated cell – a sophisticated, complex and modular turnkey solution designed by Lenane in conjunction with Mills CNC – comprises two DVF 5000 machining centres and a FANUC industrial robot integrated by a robot positioning track that runs between both machines to enable fast, efficient and reliable part loading and unloading operations to occur. Other elements of the cell include an integrated racking system, holding up to 36 pallets (400 x 400 mm, each with a 140 kg maximum load). The company aims to get 20 hours pf machining operation from the cell every day.
For further information www.millscnc.co.uk

Cost-efficient and sustainable machine overhaul

In 1871, Ernst Körting invented the steam jet injector as a boiler feed pump and founded the company Gebrüder Körting in Hanover with his brother Berthold. Today Körting Hannover GmbH has subsidiaries in Brazil, China, India, Malaysia and Poland, and ranks as a leading manufacturer in the development and production of application-specific jet pumps, vacuum engineering products and environmental technology.

The company manufactures its demanding components on CNC machine tools from DMG Mori, among others. They include a DMU 125 FD duoBLOCK installed in 2006, which has been made fit for at least another 10 years thanks to a general overhaul completed in 2022. Jet pump ejectors for wastewater treatment application are made of polypropylene and have been produced this machine since its arrival. In 2021 Körting considered investing in a new machining centre.

“However, the DMU 125 FD duoBLOCK was technically suited to our requirements, so we decided to commission DMG Mori Used Machines to overhaul our existing model,” explains plant manager Jürgen Sack, who outlines some of the many benefits. “Firstly, we would have had to invest at least twice as much for a new model. Secondly, the overhaul did not require any changes on the shop floor and we were able to continue using our existing tools and equipment, such a fixtures and NC programs. Thanks to the manufacturer’s more modern, high quality parts, the accuracy of the machine is also improved. What’s more, we benefit from a six-month warranty and 10-year availability of spare parts and service.”
For further information www.dmgmori.com

A successful large-scale mill-turn project

Soraluce customer, Krones, from Neutraubling, Germany, required a mill-turn machine with a fixed portal and two movable milling and turning rotary tables, each with a diameter of 6 m, in double-table design and a high degree of automation. To complicated matters, the project commenced in the middle of the Covid-19 pandemic.

All arrangements could only take place by telephone and video call – a visit to the manufacturer´s plant or to the customer during the decision-making phase of the investment was ruled out for safety reasons. The customer´s concept was supported by figures, data and 3D simulations, but finally seeing the finished machine, a PR 6000 2T, after the months of planning and discussion – 32 m long, 14 m wide and weighing just under 300 tonnes – is a whole different story. It is not just a large portal milling and turning machine, but one of the largest machines with a double-table design in Germany.

While machining on one milling and turning rotary table, set-up can take place on the other. At Krones, the company uses the machine to produce roundels for bottling in the food industry. With a tool-change system featuring 500 tools and an ABB robot for the changeover, the degree of automation is optimal. Process control comes courtesy of a Siemens Sinumerik One CNC. Soraluce created a digital twin for the plant that simplified and shortened commissioning on site considerably.

A follow-up order for a fully automated production line with three portal milling and turning machines connected to a large pallet station and central tool magazine, confirms the confidence in Soraluce. Machine tools from Soraluce are available in the UK from TW Ward CNC Machinery.
For further information www.soraluce.com

Supersizing Wind Power Production

Denmark-based HACO A/S has invested in two large-capacity Droop+Rein portal-type machining centres from Starrag to meet the rising demand for components for larger offshore wind power turbines having outputs of up to 16 MW. The new machines will perform the complete machining of components such as rotor housings (with diameters up to 10,000 mm; though sizes up to 11,500 mm are also now under consideration), as well as front and stator sheets, brake discs, and other components. HACO’s ‘supersizing’ of its production enhances its established (60 years) contract manufacturing success.

When it comes to wind power, Denmark is leading the way: electricity generated by wind power fulfils 40% of the country’s energy requirements, and HACO’s prime customer, Valmont SM A/S, is a leader in the supply of steel components to the wind-power sector.

HACO currently processes around 10,000 tonnes of high-strength steel each year, but the wind-power sector is now also looking increasingly at the use of aluminium alloys, castings and composites, so the company’s investment in the two new machines was taken with these materials in mind.

The choice of Droop+Rein machines for this significant investment was based on HACO’s long-standing experience with Starrag on machine reliability/longevity, customer service, machine price and the delivery schedule of the new duo. Until now, Valmont has been transporting the welded blanks to HACO’s site 100 km away but, with this multi-year contract now embracing larger components, the two companies have decided on a more sustainable form of collaboration which sees HACO establishing a subsidiary plant for the two new machines close to Valmont’s HQ, which is near the sea to allow convenient shipping.
For further information www.starrag.com

Renishaw opens technology centre in India

To support its rapidly growing customer base in India, Renishaw opened a new technology centre in Bangalore last month. The new facility provides customers with access to demonstrations of the company’s solutions for metrology and material analysis. Spanning 12,000 sq m, the site houses Renishaw’s technical, operations, and sales and marketing teams, as well as the warehouse and technology centre.

The centre allows companies to work with engineers to understand how their processes can become more efficient and productive using Renishaw technologies. Visitors will be able to view demonstrations of the company’s product portfolio, including its metrology equipment for process control applications. The investment is seen as crucial in enabling Renishaw to keep up with India’s rapid industrial growth.
For further information www.renishaw.com