For Nutberry, a policy of manufacturing parts in house and automation of processes led it to invest in a DMG MORI NLX 2000 SY | 500. The company based in Hailsham has been manufacturing gas springs since the 1980s and developments in the design and fields of application of these products increased the need for more milling and turning operations.
Antony Montebello, Director at Nutberry says, “We started manufacturing gas springs for British Steel when it was looking for an alternative to compression springs for clamping at high temperatures. Compressions springs tend to relax at high temperature, while gas spring clamping forces increase, making them an ideal solution. Originally, we used to buy in the bellows for the gas springs, but now we manufacture our own, ensuring quality and continuity of supply.

The company has experience with DMG MORI machines and, when it decided it needed a more versatile bar fed machine with driven tools, DMG MORI was an obvious contender. Antony Montebello says, “With the advances in gas spring design, we needed to perform both turning and milling operations to manufacture the end fittings. With the NLX 2000 SY | 500 we have eliminated these extra operations. Our new patented balanced spring design includes two chambers, extra drilling operations and flats on the rams, all ideal for the NLX 2000 SY | 500’s driven tooling. The aim of this new gas spring is a controlled clamping force. Sometimes the clamping force can be too great at high temperature.  The second chamber pressurises as the temperature rises providing an opposing force, keeping the overall clamping force within tolerance. The NLX 2000 SY | 500 is also very useful for the manufacture of parts for our bellows making machine, as we require special tools to suit each new bellows shape we produce.”

The NLX 2000 SY | 500 comes with CELOS® and has a spindle 2, built in motor turret, part catcher, controlled thermal displacement through coolant circulation in the machine body and high vibration damping performance from its rigid construction. Antony Montebello adds, We have had an old DMG MORI machine since 1983 and it still works well with little maintenance. On the new machine, which we have had for nearly 12 months, we simply don’t have any reliability problems, so we have not had any reason to use the after sales service.  We are very confident in the performance, reliability and accuracy of the new machine.”

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