SYWB — Direct-Drive Centrifugal Plug Fan

Midi Industrial is a renowned Asian manufacturer of HVAC fans and building ventilation fans for engineering projects - engineered to fuse aerodynamics, motor technology and intelligent control.

Up to 100,000 m3/h from a direct-drive plug fan puts the SYWB well beyond room-level or residential units. This direct-drive centrifugal plug fan serves the medium and large end of central air-conditioning: AHUs in big commercial buildings, exhibition spaces and production halls, where the airflow target runs into tens of thousands of cubic meters per hour. Midi Industrial builds it as an unhoused cartridge for fitting inside a cabinet rather than as a standalone cased fan.

Practical notes
No scroll housing, no belts, no sheaves. The motor drives the impeller directly, which removes the wearing transmission parts a belt-driven large fan would carry, and the cartridge lifts or slides out as one assembly for service. The wide diameter range - 280 to 1,400 mm - is what lets one product family cover everything from a mid-size office handler to a large hall unit. At the larger end, check the rail load and the removal path, because the combined wheel and motor assembly is heavy.

Common fits
The SYWB shows up in central air-conditioning handlers, ventilation cabinets and fresh-air systems for commercial buildings, warehouses and industrial plants. It leans toward dependable, continuous-duty operation rather than a specialized blade shape; if you want the airfoil version for quieter high-volume duty, the wing-type model in the same range is the one to compare. Contractors and cabinet builders send their airflow and static pressure values, and Midi Industrial matches a wheel size from the range for the central air-conditioning installation.

Impeller Diameter: 280-1400mm
Air Volume: 1000-100000 m³/h
Pressure: 0-2000 Pa
Drive Type: Direct drive

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