 Screw Feeder: For Precision Batching of Bulk Materials under repeatable accuracy and time control is offered with Main and Metering Screw combination having Quick Shut Off Valve with Coarse and Fine Dosing capability.
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 are 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 are available from 150 mm to 600 m dia having capacity ranges from 500 Kg/ Hr to 50,000 Kg / Hr. The Metering Screws having diameters 80mm to 150 mm dia. delivers precisely over 50 gm/ Min to 5000 gm/ Min under optional Variable Speed Drives.
Both the Main & 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 Test with Customers’ Materials are available at our R&D Facilities.
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Note : Please take a print out of the RFQ and send us by fax at (91 33 2474 7762 / 276 1775) or by post at Maschinen Fabrik (India) Pvt. Ltd., 11/45, Panditia Road, Kolkata 700 029. |
