Modular Baghouse

Compact, Modular Design

The Donaldson Modular Baghouse dust collector is designed to handle applications where high air volumes with heavy dust loading are the norm. The Modular Baghouse delivers reliable, efficient, continuous-duty, pulse-jet operation. The MB provides reliable service with easy maintenance. Computer designed inlets and deflector plates, coupled with maximised bag spacing, result in optimal airflow with minimal abrasion. Advanced valves, providing 50% more cleaning air, result in efficient operation. Over the life of the collector, no other baghouse can provide this much value.


  • High body inlet models allow higher air-to-media ratios on lighter dusts
  • Square models help minimise ducting and accessory costs
  • Clean air bag access for easier bag service
  • Welded design increases durability
  • Integral fan option reduces space requirements
  • Tool-free installation of bag filters and cages

Options and Features


MBT Normal Operation


MBW High Inlet Normal Operation


Baghouse Operations that Work

The Modular Baghouse collector comes in two models: the MBT allows walk-on, top access to the bags (clean-air side) of the collector. This configuration is ideal for indoor or tight budget applications. The MBW offers a walk-in clean-air plenum, so bags can be replaced in any kind of outdoor weather.

The MB has two inlet configurations; the most common configuration allows the dirty-air to enter through the hopper inlet located under the bag filters. The dirty air hits a defector at the end of the inlet, which causes heavy particulate to fall directly into the hopper. This reduces the amount of dust that comes in contact with the bags resulting in longer bag life and lower pressure drop. For applications with light and fibrous dust, a high body inlet is available that reduces upward air velocities allowing the dust to properly fall into the hopper after the bags have been pulsed.

Engineered for Reliable Performance

Modular Baghouses are a reflection of Donaldson's commitment to technical research and development. Sophisticated FLUENT® computer airflow analysis has been used to assure the Modular Baghouse proves a uniform airflow resulting in reduced bag abrasion, longer bag life and lower maintenance costs.


Dumpster Discharge for Heavy Dust Loading

For applications with heavy dust loading, the MB has an easy to use Dumpster Discharge. This option provides either a two or three meter squared self-dumping dumpster that can be hauled away with the use of a forklift. The dumpster comes with a lid that seals the system so that no rotary valve is required. The lid is lifted off the dumpster via a mechanical lift, which is included with the package.