Engineering precisely what you value

Press release Starrag 07-2017

Burckhardt Compression: Four machining centres in twelve years

No. 4 for the world record

Sights on a world record: The Scharmann ECOFORCE is used to produce all major drive elements for what the manufacturer claims is the world‘s most powerful hyper-compressor system (in the image, one of a total of three compressors) for an LPDE plant for the manufacturing of plastic packaging.

Winterthur / Switzerland

Burkhardt Compression ordered a Scharmann ECOFORCE in the highest configuration level. The fourth machi-ning centre purchased from Starrag‘s Mönchengladbach site within 12 years helped the company to set a world record.

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Burckhardt Compression AG, based in Winterthur (Switzerland), is one of the world‘s largest manufacturers of piston compressors. It already has an Alpha 1250 M, a Heavyspeed 2 ram type boring mill and a Dörries CONTUMAT VC 2400 MC-V vertical turning lathe, which are used to manufacture cylin-ders, cylinder blocks, frames, valve heads and steering rods for compres-sors from castings and forgings with a high degree of automation. Absolute precision in the micrometre range (20 µm) is needed here, because all of the parts must fit each other exactly during later assembly.

The new Scharmann ECOFORCE 2 HT4, which serves as a replacement for an old Wotan machine tool, closes the machining gap between the Alpha and the Heavyspeed. Number four is again a stand-alone machine individua-lised according to customer request with a very powerful 54-kW spindle (torque: 3,000 Nm in S1 continuous operation) for medium-sized parts of up to 24 tonnes (X: 3,500 mm, Y: 2,500 mm, Z: 3,500 mm, W: 800 mm). The combination of head attachments and flexible tool magazine with auto-matic changes enables the use of large two-blade tools. An RTM 220

Kuka robot tool magazine (for 196 tools) and an automatic pickup magazine for head attachments reduce downtimes. In addition, a facing head (diameter: 500 mm), attachment spindle (length: 1,000 mm, diameter: 180 mm) and a spindle-driven angled milling head are used. An adapter plate enables the use of existing machining heads on both the Heavyspeed and the Scharmann ECOFORCE.

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Roman Dünner, Technical Supervisor CNC-Large Parts Manufacturing, Burckhardt Compression AG, Winterthur: ”As a rough estimate, the Scharmann ECOFORCE replaces one-and-a-half conventional machines.“

Protective chamber: Full enclosures are very important for Burckhardt Compression, as the company machines a large number of cast parts that produce a lot of metal dust. The employees are also protected against coolant vapours.

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For further information:

StarragMichael SchedlerHead of MarketingT +49 2166 454 0F +49 2166 454 300info@starrag.comwww.starrag.com

Burckhardt Compression profile

Burckhardt Compression AG (turnover 2016: approximately CHF 558 million; employees: approximately 2100), based in Winterthur, Switzerland, has considerable experience and expertise in the manufacturing of customer-specific piston compressors with an optimal output within a broad spectrum of applications in the areas of oil and gas production (upstream oil & gas), gas transport and storage, refineries, the petrochemical / chemical industry and industrial gases.

According to its own data, the Swiss company is the sole provider of a complete range of labyrinth piston, process gas, hyper and offshore com-pressors that can be used in a wide temperature range (from minus 160°C to plus 80°C). Several decades of use is no rare occasion: In Winterthur, Burckhardt proudly displays a com-pressor manufactured in 1884, which was in service for 85 years.

www.burckhardtcompression.com

The Scharmann ECOFORCE is also supporting Burckhardt Compression in achieving a world record. It is used to produce all major drive elements for what the manufacturer claims is the world‘s most powerful hyper-compressor system ever built for an LPDE plant for the manufacturing of plastic packaging (LDPE: low-density polyethylene). The drive elements also included the largest component manufactured on the machining centre so far, with a total length of over three metres. Roman Dünner, Technical Supervisor CNC-Large Parts Manufacturing: ”Apart from a small amount of manual work, for many com -ponents the Scharmann ECOFORCE is currently the only machine on which we can fully machine highly complex parts in one or two clamping operations. As a rough estimate, it replaces one-and-a-half conventional machines.“

Company profile StarragEngineering precisely what you value

Starrag Group is a global technology leader in manufacturing high-precision machine tools for milling, turning, boring and grinding workpieces of metallic, composite and ceramic materials. Principle customers are internationally active companies in the Aerospace, Energy, Transportation and Industrial sectors. In addition to its portfolio of machine tools, Starrag Group provides integrated technology and maintenance services that significantly enhance customer productivity.

The products are marketed under the brand Starrag and include the product ranges Berthiez, Bumotec, Dörries, Droop+Rein, Ecospeed, Heckert, Scharmann, SIP, Starrag and TTL. Headquartered in Rorschach / Switzer-land, the Starrag Group operates manufacturing plants in Switzerland, Germany, France, the UK and India and has established a network of sales and services subsidiaries in the most important customer countries.

Starrag Group Holding AG is listed on the SIX Swiss Exchange.

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