In industrial dust collection systems, the baghouse filter is the heart of the system and the core component for capturing dust. According to the installation method and filtration principle, filters are mainly divided into two types: Outlet Dust Filter Bags ve Inlet filter bags.

Inlet filter bags refer to filter media located inside the bag, where dust-laden air enters from the outside of the bag, passes through the filter media, and exits from the inside. The inlet design facilitates ash removal and is commonly used in small to medium-sized dust collectors, suitable for low to moderate dust concentrations.

Outlet Dust Filter Bags , in contrast, have the filter media located on the outside of the bag. Dust-laden air enters from the outside, passes through the filter media, and exits from the inside. The outlet design offers higher pressure resistance and is suitable for high air volume and high dust concentration environments, commonly applied in industries such as chemical processing, metalworking, and cement production. In this article, engineers from Okai Environmental Technology Co., Ltd. provide a detailed introduction to outlet filter bags.

Structure and Features of Outlet Dust Filter Bags

Outlet Dust Filter Bags are generally manufactured using flat filter media stitching or hot-melt bonding processes. Their typical structure includes:

• Bag opening — connects to the dust collector frame to ensure airtightness.
• Bag body — the main filtration area, determining the bag’s filtration efficiency.
• Reinforced layer — improves pressure and wear resistance, extending service life.
• Çanta tabanı — collects dust, facilitating ash removal and maintenance.

This design ensures that outlet filter bags can operate stably in high-temperature, high-dust concentration environments, reducing system failure rates.

Dimensions and Specifications of Outlet Dust Filter Bags

Depending on industrial requirements, the diameter of Outlet Dust Filter Bags typically ranges from Φ80 to Φ200 mm, with the most common specifications being Φ115 to Φ160 mm. Bag lengths usually range from 2 to 6 meters, with a maximum length of 8 meters. Companies can select the appropriate size based on the type of dust collector and airflow volume to optimize dust collection efficiency.

Choosing high-quality outlet filter bags not only improves filtration efficiency but also extends equipment life and reduces maintenance costs. Aokai Environmental Technology Co., Ltd., with 21 years of experience in producing outlet filter bags and over 10,000 industry cases, uses premium filter media and precise stitching techniques to ensure bag strength and stability meet global industry standards.