Bag Dump Stations

Dust is naturally generated when material is emptied into the collection hopper from bags, boxes, drums, and other containers. Effective dust collection protects against creating explosive environments, improves plant air quality by reducing contamination, and captures all product for use in your process. Any of our complete bag dump stations with integral dust collectors will optimize your small batch material handling process.

Plant Safety – Know Your Risk

Dust Explosion at Manufacturing Plant

April 14, 2016 – Investigators said dust from a broken hose was likely the cause of a dust explosion at an International Paper cardboard box manufacturing plant in Richmond, MS, the Jackson [MS] Clarion-Ledger reported. No injuries occurred as a result of the explosion. Small “spot fires” were extinguished by firefighters after the blast.

Read the full story on Powder & Bulk Solids.

Operation of Hapman bag dump stations begins with opening the hopper lid. The gas cylinders will allow the heavy-duty door to lift with ease and firmly maintain an open position. While material is dumped through the hopper screen, the airborne particles are drawn into the dust collection filters. Adding a reverse-pulse filter cleaning system to any of our bag dump stations will further reduce material waste.

The timer-activated solenoid valves release short blasts of compressed plant air inside the cartridge filter. This causes the dust build-up on the filter surface to fall into the hopper. The two filters are alternately blasted at timed intervals, providing an automated maintenance operation. The combination of our bag dump stations with integral dust collection systems helps to reduce industrial safety hazards, improve plant air quality, and increase dust control for less material waste.



These custom features will meet all of your small batch material handling needs:

Hood configuration for dust control – External collection or self-contained collection using a centrifugal blower.
Maximize station operation with an integral bag compactor – Allows empty bags to be easily maintained and disposed.
Capitalize on bulk material purchases – With an automatic, alternating, reverse pulse-jet filter cleaning system.
Part of a comprehensive material handling system – Our bag dump stations will integrate with conveyors, mixers and other equipment.
Integrated controls – Pre-wired controls complete with push-button power and adjustable pulse control timer.

Hood configuration for dust control |

Dust Collector Bag Dump Station with Integral Bag Compactor


  • Change the washable filter cartridge in minutes.
  • Dump materials easily while gas cylinders support the hood door.
  • Clean the filter automatically with the reverse pulse-jet system.
  • Fit the equipment into most processes with 30 in (76.2 cm), 36 in (96.4 cm) and 42 in (106.7 cm) sizes.
Model FL Bag Dump Station with Easy Access Panel |

Model FL Bag Dump Station with Easy Access Panel

Easy Filter Change

Detailed Features

Front panel is easily lowered for quick filter changes |

Front panel is easily lowered for quick filter changes

Model SR Dust Collector

Increase efficiency and improve plant air quality and cleanliness.

Model SR Features

  • Compact design
  • Removal air baffle
  • Reverse pulse-jet system cleans filters automatically
  • Centrifugal blower effectively captures airborne particles where they are collected by the filter
  • Gas cylinders support the hood door, allowing you to dump materials easily
  • Fits easily into most processes with 3 optional sizes: 30 in (76.2 cm), 36 in (96.4 cm) and 42 in (106.7 cm)
  • Side access door provides easy filter removal and compression on gasket; no internal washers or wing nuts are needed

Model FR Dust Collector

Designed for non-wash-down applications.

Model FR Features

  • Front-access filter removal
  • Dual filter design offers increased filtration area over the Model SR
  • Filter cartridge access door offers toolless filter removal and change
  • Gas cylinders support the hood door, allowing you to dump materials easily

Model FL Dust Collector

Designed specifically for high volume, multiple material change applications.

The filters are 99.99% efficient down to 0.5 microns and can be easily accessed for service. They can be clamped right onto your existing equipment, hoppers or Hapman-provided conveyors.

Model FL Features

  • Designed for wash-down applications
  • Clean air chamber has sloped design with drain hole and quick entry access door
  • Filter cartridge access door located at the front of the unit
  • Automatic alternating, reverse-air pulse filter cleaning.
  • Filter cartridges are made of Torit-Tex media with 304 stainless steel end caps for removal without tools
  • Housing is constructed of 304 stainless steel
  • Convenient, bag slitting shelf

Hazardous Material Handling – Glove Box Bag Dump Stations

Prevent hazardous airborne particles from endangering employees and compromising plant air quality.

Our custom engineered Glove Box Series Bag Dump Stations limit employee exposure to airborne particulate when opening and emptying bags. The self-contained air filtration system is 99.9% efficient down to 1 micron, providing complete control over the emptying process. These bag dump stations are easy to use and fit in tight spaces with a low-profile design.

  • Provide ultimate protection with heavy-duty gloved access
  • Handle bags quickly and easily with the integral plexiglass viewing window
  • For additional filtration, an option HEPA filter is available
  • Externally mounted centrifugal blower for dust control
  • Additional bag compactor increase efficiency and cuts down on dust
  • Side-by-side double doors allow overhead lifts to deliver the contents of drums and containers
  • Stainless steel option for the aluminum blower assembly with 230/460-volt, 3-phase, 60-hertz, wash-down duty motor
  • Pre-wired NEMA 4X operator station complete with push buttons and adjustable pulse control timer (motor starter is optional).

Tech Brief: Key Factors of Material Handling Equipment Design and Selection

Successful conveying and handling of dry ingredients requires much more input than understanding a material’s properties, the desired convey rate, and distance.

Read Full Paper

Tech Brief: Mitigating the Risk of Dust from Bulk Bag Discharge

Dust control is a constant challenge for any processor that handles dry bulk material. The hazards from dust span the health and safety spectrum from mildly irritating and unclean, to hazardous to health and explosive.

Read Full Paper

Blower motor specifications: 230/460-volt, 3-phase, 60 Hz. Available in aluminum or stainless steel. Explosion-proof or washdown options available.

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