• Compete Tools Private Limited

Pneumatic Valves for Sorting Cotton Contamination

Compete Tools Pvt Ltd offers very high-speed precision Pneumatic Valves developed by Mac Valve for speeding the sorting of cotton contaminations. Raw cotton often contains foreign objects, such as polypropylene scrap, or dirt. Before cotton fibre can be spun, the raw cotton must be sorted to remove any foreign particles and fibres. While foreign particles can be clearly distinguished from the raw cotton by colour, contrast and structure, foreign fibres such as polypropylene or polyethylene films are often light and transparent, making them difficult to detect using conventional foreign particle separators. Plants spend enormous amounts of money each year to rectify damage caused by such objects, so these contaminants must be removed before cotton processing. The cotton along with foreign fibres pass travel at high speeds and at this speed the camera and software recognize a foreign fibre in the path. Depending upon the type of machine, a gang of pneumatic valves in combination of 16, 32, 48 and/or 64 at the spacing of less than 10 mm is mounted on the path to blow off the contaminations at that speed. Mac Valve has developed very high-speed precision pneumatic valves for many OEM applications, which have constant high speed opening and closing time. These valves can develop pulse of air in less than 1 milliseconds and it is not affected by air pressure variance. As the opening of the valve is important to blow off the contamination, it is more important to close the valve very fast to avoid blowing off good fibres. Mac meets this requirement by having very strong magnetic coil for open and strong spring to close the valve. These burn-proof valves do not stick and can handle 40µ air quality, ensuring machine to run continuously without any downtime. The company also provides solutions to any existing pneumatic valve, which is not performing as per the requirements.