The 4-68-8C-37kw is a common centrifugal fan. "4-68" refers to the fan series model; "8" indicates that the impeller diameter is 800mm; "C" denotes belt drive transmission; and "37kw" represents the motor power of 37 kilowatts.


Below is a detailed introduction:

Performance Parameters

- Airflow: Typically ranges between 27,500-35,000 m3/h.

- Total Pressure: Generally within the range of 2,900-3,600 Pa.

- Rotational Speed: Approximately 1,800 r/min.

- Noise: Noise levels are usually between 70-90 dB.

Structural Components

- Impeller: Composed of blades, a front disc, and a rear disc. The blades are backward-curved, the front disc is curved, and the rear disc is flat. Materials are typically steel plate or fiberglass.

- Casing: A volute-shaped structure welded from ordinary steel plate, which can also be made of fiberglass or stainless steel as needed.

- Inlet: Designed as an integrated unit mounted on one side of the fan. The cross-section parallel to the axis is curved, allowing smooth airflow entry into the impeller with minimal loss.

- Dampers: Usually equipped with dampers to regulate the fan's airflow. The damper blades are petal-shaped and feature an external transmission structure for flexible and convenient adjustment, with a range from 90° (fully closed) to 0° (fully open).

- Drive Assembly: Consists of a main shaft, bearing housing, pulley, and coupling. The main shaft is made of high-quality steel. The bearing housing is equipped with a thermometer and an oil level indicator.

Features and Applications

- Features: Simple structure, stable operation, high efficiency, low noise, and easy maintenance.

- Applications: Widely used for ventilation, dust removal, and cooling in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings; ventilation and induced draft for boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and conveying of grains; and as a wind source for wind tunnels and inflation and propulsion for air cushion vehicles.