On-board energy saving
calculators show the amount of energy each dynamic drive is saving in kilowatt-hours.

Timber frame home by Scottish house builder, Ullapool Construction Ltd.  


With the spiralling levels of energy costs, it makes good sense for manufacturing companies to look for energy saving opportunities in their production processes.

For firms that use woodworking machinery with associated dust extraction, it may not be obvious that, in addition to burning woodwaste as a fuel, there may exist other opportunities to further slash electricity bills. In fact, improving the efficiency of an existing dust extraction system can have a considerable effect on energy usage.

In most existing systems extraction fans run at a constant speed, irrespective of the number of woodworking machines that are operating, or the amount of dust to be extracted. They can also run continuously throughout the period that the workshop is operational; anything from an 8 hour shift 5 days a week, to a 24 hours 7 days a week operation.

Leading dust extraction engineers, Dust Control Systems Ltd., recognised that reducing the speed of a fan by just 10% would save around 27% in energy. However, utilising their latest Dynamic Drive System, Dust Control Systems can design extraction systems which are dynamically responsive, providing optimum extraction, only when it’s needed.

One Scottish based manufacturer to benefit from the installation of a DCS Dynamic System is leading timber kit house manufacturer, GM Timber Systems Ltd. At their workshops near Banchory in Royal Deeside, the company design and construct timber kit houses, and other buildings, for customers throughout Scotland and have been particularly successful in winning contracts to supply house kits to the Western Isles and Orkney.

In recent years GM Timber Systems has invested heavily in ‘state-of-the-art’ machinery and the company has pursued a programme of energy saving and environmental initiatives. A waste-to-energy plant burns all the company’s wood waste and generates heat for the 15,500 sq. ft, workshop.

GM Timber Systems operate a modern DCS modular chain filter with an air volume of 38,400m³/hr and the system employs one 30kW and two 15kW fansets that extract from a total of 29 machines, with two high-performance moulding machines generating the majority of the waste.

DCS carried out an on-site energy survey to assess the specific energy demand from each machine and determine how each individual system could be adjusted for volume and duty cycle to enable an average reduction in volume – which equates to a reduction in absorbed power.

DCS were able to clearly demonstrate the sort of savings that GM Timber could expect by retrofitting a Dynamic Drive System. The proposal involved upgrading the existing system by fitting auto-dampers to selected woodworking machines. As the dampers open and close the Dynamic Drive detects the change in volume and alters the fan speed accordingly – providing the optimum extraction volume, just when it’s needed.

The net result is that GM Timber can expect to save over 56,000 kilowatt hours of electricity per year. With the benefit of the government’s Enhanced Capital Allowances of 100% in the first year, payback on the new system is under two years.


Dust Control Systems Ltd., Horace Waller VC Parade, Shawcross Business Park, Dewsbury, WF12 7RF
Telephone: +44 (0)1924 482500   E-mail:
Freephone: 0800 0407116

Sitemap Terms & Conditions