EEW, Germany
Subcontractor - the end-user manufactures large pleasure craft

System description

Extraction of light dust from the open CNC machine for large items and high-vacuum system for cleaning

Total capacity

Dust extraction in CNC: 100,000 m3/h, High-vacuum system: 1,700 m3/h

Task

When processing large items in the open CNC machine, there will be suspended dust, which must be extracted to ensure production quality and a good working environment. The heavier dust will settle on the floor and therefore needs to be removed manually to maintain a clean working environment.

Solution

For the extraction of the light dust, a system has been established which is generally designed according to the piston-effect principle. The system and ventilation principle have been smoke tested and approved by the German product and certification organisation, TÜV. The system complies with applicable requirements and provides an optimal working environment and the best working conditions for production machines and personnel.

A ventilation unit has been installed to recover heat from the exhaust air to the supply air in order to save energy.  

For the extraction of the heavier dust on the floor of the CNC machine, a vacuum cleaner system has been installed, which runs on high vacuum. Six metres of outriggers have been installed, on which hoses and cleaning equipment are mounted directly. Automatic start/stop of the system is provided via a signal switch on the cleaning equipment for optimal user-friendliness. The filter system ensures that the emission requirements for discharges are met.

The filter system is designed according to the ATEX directive, as the dust poses a potential explosion risk.


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