F270-2 Hand cranked Electric Dual purpose Fan

NegotiableUpdate on 05/07

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Nature of the Manufacturer: Producers

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Overview

F270-2 Hand cranked Electric Dual purpose Fan

Product Details

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1、 Product Overview
The F270-2 electric hand cranked dual-purpose fan is used in conjunction with underground construction. When the power supply is normal, it is electrically driven, and when the power is cut off, it can be manually operated. It is an essential ventilation equipment for civil defense works and underground buildings at all levels.
2、 Product Features
F270-2 electric hand cranked dual-purpose fan, one machine for two purposes, easy to use and simple to maintain. It is a ventilation equipment specially designed for civil air defense ventilation systems
3、 Product process
1. Impeller: The impeller consists of backward inclined circular arc blades, curved front plate, flat middle plate, and hub, and has advanced aerodynamic performance. All are produced using molds, welded with carbon dioxide gas shielded welding, and calibrated by a digital hard support dynamic balancing machine, achieving a balancing accuracy of G4.6 or above.
2. Spiral shell: The side plate and spiral plate are made of high-quality Q235A steel plate produced by Baosteel, and cut by CNC plasma cutting. After rolling the snail plate with a three core coil, it is welded with carbon dioxide shielded welding to the same side plate. Equip with angle steel brackets to ensure that the shell has sufficient strength and rigidity.
3. Transmission mechanism: The transmission mechanism is easy to switch, flexible to rotate, and easy to maintain.
4. Assembly: After the fan is assembled, the vibration velocities of the X, Y, and Z axes are all less than 5.6mm/s.