• Maschinen Fabrik (India) Private Limited

Dosing Screw Feeder

Maschinen Fabrik (India) offers Dosing Screw Feeder. The metering screws are optionally provided with variable speed drive motors with servo ventilation cooling fans for operation under super fine mode to achieve critical accuracy. Special construction of screw flights - short, tapered, expanded pitch - is used for materials of high compressibility factors or hygroscopic nature. Wear resistant Hardox or hard faced flights are used for abrasive materials. Several different types of shaft seals are used for fine powders. The main screw is available from 150 to 600 mm dia with capacity ranges from 500 to 50,000 kg/hr. The metering screws with dia 80 to 150 mm deliver precisely over 50 to 5000 gm/min under optional variable speed drives. Both the main and metering screws operate up to a preset target of 90-95 % of the batch weight in "coarse" mode. The main screw then turns off with an optional cut-off valve, shutting any accidental overflow of materials. The metering screw continues to discharge material in the "fine" mode. For very high accuracy, the speed of the metering screw is further reduced by a variable speed drive precision dosing in "superfine" mode for a small percentage of the batch weight. Material characteristics and conveyability test are available for correct selection of screws construction of various grades, optional accessories in stainless steel, carbon steel like flexible connectors, load cells, weighing controllers, dust filters are available for complete batching operation. Conveyability tests with customers" materials can be done at the company"s R&D facilities.