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

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

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