Compact side-insertion flat-bag filtration with pulse-jet cleaning and flexible modular construction for medium- to large-airflow industrial dust collection systems.
EHFBC uses flat envelope-shaped filter bags supported by rigid flat cages and arranged in compact vertical rows. The filter assemblies are serviced from the access side, creating a different maintenance layout from conventional top-entry round-bag collectors.
Flat filter elements are positioned closely in parallel rows, allowing substantial filtration area to be packaged inside a relatively compact cabinet.
Filter bags and cages are installed and removed from the service side, so routine replacement does not require overhead bag-pull clearance.
Rows, layers and module quantity can be combined around the required filtration area, airflow duty and available installation space.
Dust-laden air enters the collector and moves through the flat-bag filtration zone. Dust is retained on the filter surface, while cleaned air passes to the clean-air side and exits the collector. Periodic pulse-jet cleaning releases accumulated dust toward the hopper.
Dust-laden air enters through the inlet and is distributed through the collector body toward the flat-bag array.
Dust is retained on the filter surface while the cleaned air passes through the filter media to the clean-air side and then leaves through the outlet.
The pulse system periodically cleans the filter bags. Released dust falls into the hopper and is discharged through the lower dust-removal device.
The flat filter bag, rigid support cage, slotted mounting plate and retaining clips work together as one side-service filter assembly. The details below show the component relationship, side insertion and the mechanical retention used after installation.
The flat bag fits over a rigid cage that supports the filter media and maintains the required flat profile. The white sample shown here is the bag cuff, illustrating how the filter bag interfaces with the cage at the access end.
After the filter bag is fitted over the cage, the complete assembly is inserted horizontally from the service side. The bag seats into the corresponding slot in the mounting plate while the cage remains accessible from the front.
A retaining clip bridges the adjacent edges of two support cages. Upper and lower retaining points hold the installed cage assemblies in position after insertion.
Once installed and retained, the flat bag-and-cage assemblies form an orderly side-service filter array. This view shows a typical 10-slot arrangement with consistent spacing and repeatable positioning across the filter row.
A required airflow alone is not enough to select a flat baghouse. The dust characteristics, concentration and operating conditions determine the filter media and design filtration velocity. That velocity determines the effective filter area, and only then should the required area be assembled from standard EHFBC modules to fit the available height, width and depth.
Filtration velocity is selected from the actual dust and duty. The values below are typical preliminary design references, not universal ratings.
Choose the required layer count from the tables below, then combine base modules to provide the total filter area required by the application. These are single-column modules, not fixed-airflow ratings.
C = module columns · L = filter layers · 15 / 20 = nominal 1.5 m / 2.0 m bag length. With a standard 10-bag row, each 1.5 m column-layer provides about 15 m² and each 2.0 m column-layer about 20 m² of effective filter area.
Common configurations · 2–8 layers
| No. | Model | Layers | Bags | Filter Area(m²) |
|---|---|---|---|---|
| 1 | EHFBC1/2/15 | 2 | 20 | 30 |
| 2 | EHFBC1/3/15 | 3 | 30 | 45 |
| 3 | EHFBC1/4/15 | 4 | 40 | 60 |
| 4 | EHFBC1/5/15 | 5 | 50 | 75 |
| 5 | EHFBC1/6/15 | 6 | 60 | 90 |
| 6 | EHFBC1/7/15 | 7 | 70 | 105 |
| 7 | EHFBC1/8/15 | 8 | 80 | 120 |
10 bags per layer × approx. 1.5 m² per bag.
Available configurations · 1–8 layers
| No. | Model | Layers | Bags | Filter Area(m²) |
|---|---|---|---|---|
| 1 | EHFBC1/1/20 | 1 | 10 | 20 |
| 2 | EHFBC1/2/20 | 2 | 20 | 40 |
| 3 | EHFBC1/3/20 | 3 | 30 | 60 |
| 4 | EHFBC1/4/20 | 4 | 40 | 80 |
| 5 | EHFBC1/5/20 | 5 | 50 | 100 |
| 6 | EHFBC1/6/20 | 6 | 60 | 120 |
| 7 | EHFBC1/7/20 | 7 | 70 | 140 |
| 8 | EHFBC1/8/20 | 8 | 80 | 160 |
10 bags per layer × approx. 2.0 m² per bag.
Base modules, not every combined model. Multiple base modules form one larger collector. Other slot counts and custom bag lengths are available to suit the project.
Combined-model example: 8 × EHFBC1/6/20 = EHFBC8/6/20 480 bags · approx. 960 m² total filter area.
For customers who only know the required airflow, this compact table provides a fast preliminary reference based on a common 7-layer, 1.5 m bag module. Find the required airflow first, then contact 7US for project-specific engineering.
| Modules | Reference Model | Filter Bags | Filter Area (m²) | Reference Airflow (m³/h) | Modules | Reference Model | Filter Bags | Filter Area (m²) | Reference Airflow (m³/h) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | EHFBC1/7/15 | 70 | 105 | 10,000 | 6 | EHFBC6/7/15 | 420 | 630 | 60,000 |
| 2 | EHFBC2/7/15 | 140 | 210 | 20,000 | 7 | EHFBC7/7/15 | 490 | 735 | 70,000 |
| 3 | EHFBC3/7/15 | 210 | 315 | 30,000 | 8 | EHFBC8/7/15 | 560 | 840 | 80,000 |
| 4 | EHFBC4/7/15 | 280 | 420 | 40,000 | 9 | EHFBC9/7/15 | 630 | 945 | 90,000 |
| 5 | EHFBC5/7/15 | 350 | 525 | 50,000 | 10 | EHFBC10/7/15 | 700 | 1,050 | 100,000 |
Once the effective area is known, choose the geometry around the actual installation envelope. The same total filter area can be arranged as a taller single module or as several lower modules placed side by side.
Reduce vertical levels and add horizontal modules while preserving the required total filter area.
Use 1.5 m or a custom shorter bag, then recover the required area through layers or additional module columns.
Add standard module columns in parallel without increasing the number of vertical layers.
10-slot rows and 1.5 / 2.0 m bags are mainstream formats, not hard design limits.
The EHFBC modular flat baghouse is the main platform introduced on this page. 7US also provides other flat-bag configurations for compact installations, local dust collection, high-vacuum systems and low-emission applications.
Insert-type flat-bag collectors designed for compact local dust control at material transfer points, silos and conveying systems.
Compact integrated flat-bag units for small and medium airflow applications, available as standalone equipment or for installation inside a containerized system.
High-vacuum flat-bag collectors for centralized vacuum cleaning and high-pressure dust extraction systems.
Flat-bag filtration combined with HEPA secondary filtration for low-emission applications and air recirculation.
The complete manufacturing and installation process demonstrates how modular flat baghouse systems are transformed from individual components into a fully integrated dust collection solution.
Provide airflow, dust type, temperature, concentration, installation space and power supply. We can then confirm the filter media, filtration area and EHFBC module arrangement.
Request Product InformationWhen complete collectors or standard modules cannot enter an existing building, 7US can separate the equipment into individual components and rebuild the complete dust collector inside the factory.
Flat baghouse dust collectors are widely used for industrial processes requiring stable filtration, flexible layouts and convenient maintenance. The following industries represent typical application areas for fabric filtration systems.
Dust collection for crushing, screening, conveying and mineral processing operations with high dust loading.
Large-volume dust control for cement production, raw material handling and building material processing.
Used for centralized dust extraction in cutting, sanding, grinding and woodworking production lines.
Applied for metal dust, grinding dust, casting particles and other industrial particulate collection.
Flexible filtration solutions for powder handling and chemical production environments.
Used for lightweight and fine powders requiring stable filtration and convenient maintenance.
Used for continuous dust extraction in tobacco processing and production lines.
Suitable for fine powder processes requiring controlled dust collection and customized filtration.
Filter media and system components are selected around the dust, operating conditions and required discharge arrangement. The options below can be specified individually after the application requirements are reviewed.
Match the flat filter bag to the dust and operating temperature. Common bag lengths are 1.5 m and 2.0 m; other lengths and matching flat cages can be made to suit the project.
Where a combustible-dust assessment requires it, protection components can be incorporated into the project design.
Track filter resistance and cleaning performance with a differential pressure gauge or sensor.
Fan and motor are selected for the required airflow, total system resistance and destination power supply.
Pulse valves, the pulse controller and control cabinet components can be selected to meet project requirements.
Select the hopper outlet and conveying method around dust characteristics, sealing needs and collection frequency.
A downstream HEPA stage can be evaluated where the project calls for further particulate filtration. Final performance depends on the complete system design and selected filter grade.
An activated carbon stage can be considered for relevant odour or gas-treatment requirements after the dust is removed. Suitability depends on the actual contaminants and duty.
For heavy dust loading or larger particles, a cyclone can be evaluated upstream to reduce the load entering the flat baghouse.
Options are specified case by case. Explosion-protection components do not imply ATEX certification of the complete dust collection system.
Share your dust conditions, installation constraints and supply requirements so we can review the filter area and module arrangement.
Please provide the dust type and concentration, required airflow, temperature and moisture, available height × width × depth, and the applicable emission requirements. Filter media and design filtration velocity are selected first; the required effective filter area and module arrangement follow.
Yes. The commonly used bag lengths are 1.5 m and 2.0 m. Other bag and matching cage lengths can be reviewed against the duty, cabinet arrangement and available space.
Where whole sections cannot enter the building, a component-level delivery and on-site assembly plan can be evaluated. Please share door and window dimensions, lifting access and installation constraints so the scope can be confirmed.
Yes. Colour, branding, nameplate arrangement and selected component brands can be specified for an OEM order. The exact configuration and supply scope are confirmed with the project.
Yes. The collector body can be discussed separately or together with filter bags, fan and controls. We will define the interfaces and items included in the quotation.
