Axial fan TCBT 4 800/GB ducted, aluminum impeller 42020157

Application and Operating Characteristics

The TCBT 4 800/GB axial fan is a device dedicated to high-volume airflow in large duct installations. Its primary function is general ventilation in high-volume facilities such as production halls, large warehouses, underground parking lots, or logistics centers. Thanks to its design adapted for direct installation in the ductwork, the device effectively exchanges air in mechanical ventilation systems, handling loads typical for industry and large retail spaces.

The device is characterized by high performance – at a rotational speed of approximately 1475 rpm, it achieves an airflow of 42 490 m³/h. Such power allows for rapid moisture evaporation, odor removal, or cooling of rooms even with significant system resistance. The three-phase motor (400V) with a power of 7.5 kW ensures stable continuous operation, and the possibility of frequency regulation (via an inverter) gives installers flexibility in adjusting performance to the facility's current needs, resulting in energy savings.

Construction and Resistance to Environmental Conditions

Solidity of construction is key for devices operating in difficult conditions. The fan housing is made of steel sheet, protected against corrosion by cataphoretic painting (primer) and a polyester layer. Such a solution guarantees a long service life even in environments with high humidity or the presence of aggressive chemical factors.

A key structural element is the impeller made of aluminum sheet. It has been dynamically balanced in accordance with the ISO 1940-1 standard, which minimizes vibrations during operation and reduces the noise level generated by the device. Airflow occurs in the direction from the impeller to the motor (HB version), protecting the drive from direct contact with the pumped medium.

The device meets rigorous safety requirements thanks to a protection rating of IP 55, which ensures effective protection against dust and water jets falling from any direction – this is essential when washing halls or working in industrial conditions. The motor is equipped with insulation class F, allowing it to operate at higher temperatures without the risk of winding damage. The temperature range of the pumped medium is from -40°C to +40°C, making the fan a universal solution for both cold and temperate climates.

Installation and Technical Compatibility

The TCBT 4 800/GB fan was designed to facilitate installation in existing ventilation systems. It has standard dimensions allowing connection to ducts with a diameter of 800 mm. The total weight is approximately 89 kg, which requires appropriate preparation of the supporting structure or suspension during vertical or horizontal installation.

For installers, the issue of electrical connection and control is also important: the device is powered by 3-phase 400V / 50Hz voltage. The rotational speed can be regulated using an inverter (external controller required), allowing for precise adjustment of flow intensity to the requirements of the ventilation project without the need for additional mechanical dampers – this model does not have built-in voltage regulation available in smaller versions. The connection box is located directly on the housing, shortening the cable installation time.

To summarize the key technical data of the device: the nominal diameter is 800 mm, and the maximum performance reaches 42 490 m³/h. The drive is a three-phase motor with a power of 7.5 kW operating at 400 V. The fan is characterized by a protection rating of IP 55 and insulation class F, allowing operation with a medium temperature from -40°C to +40°C. The impeller rotational speed is approx. 1475 rpm, and the material is dynamically balanced aluminum with airflow direction from impeller to motor (HB).