Model BBD-4K Bulk Bag Unloader/Discharger
Capacitor Starter
Bearings
Protection Structure
Amp Draw @ 230 Volts (460)
Amp Draw @ 110 Volts
Max Vibrating Force (kN)
Max Vibrating Force (LBS)
Output (kW)
H.P.
Weight (LBS)
Voltage
RPM
Phase

Model BBD-4K Bulk Bag Unloader/Discharger

The BPS Model BBD-4K is a large capacity bin vibrating unloader discharger. This reliable and robust unit is used to unload large capacity bulk bags that may need additional force to discharge the material. The BBD-4K uses heavy isolation mounts along with an 1800RPM vibratory motor to agitate the material inside the bag.

Technical Design
  • Bag Lifting Options: Choose from an electric hoist, forklift pockets, or crane attachments based on your facility’s capabilities.
  • Flexible Flow Control: Add iris valves, rotary airlocks, or slide gates to modulate discharge rate.
  • Dust Collection Integration: Maintain a clean work environment by pairing the unloader with existing or standalone dust containment systems.
  • Agitators & Massage Paddles: Optimize flow of compacted or moisture-prone materials by gently loosening contents within the bag.
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    Standard BBD-4K Features:

    • Bag Lifting Frame
    • Untie Hopper with 3 inch Dust Exhaust Port
    • Fork Truck or Hoist Loading Capabilities
    • Agitation Hopper (Electric Vibratory Motor)
    • Manual Electric Controls
    • 4,000 lb. Capacity

    Optional Features include:

    The Bag Lifting frame can be used by both an overhead hoist and a fork truck for easy operator loading.  The lifting frame comes with spring loaded bag strap retainers for bag replacement.

    The Untie Hopper allows easy access to untie the bag through the operator access door.  This door also provides safe dust control during operation and sending it through a 3 inch outlet for dust collection.

    The Agitation Hopper assists in unloading hard to remove products.

    For any additional options and custom fabrication, please contact us or see the optional features link above.

    Operational Efficiency

    A stable support frame and guided bag-lifting mechanisms minimize manual handling, reducing downtime caused by reloading and repositioning bulk bags. Quick-release spout clamps and accessible discharge points enable faster turnaround between bags. By automating or semi-automating the unloading process, facilities can significantly improve throughput while maintaining precise control over material flow.

    Safety and Compliance

  • Secure Bag Handling: Sturdy lifting attachments and a reinforced frame protect both product and personnel.
  • Enclosed Discharge Chamber: Reduces airborne particulates, aligning with typical OSHA dust control requirements.
  • Emergency Stop Features: Provides a rapid shutdown in case of equipment malfunction or operator concerns.
  • Ergonomic Access Points: Easy-to-reach controls and spout clamps promote safer operator interactions.
  • Installation Tips

    1. Stable Mounting Surface: Ensure the foundation is level and capable of supporting both the unloader’s weight plus maximum bag load.
    2. Overhead Clearance: Confirm the lift or hoist can operate freely without obstructions above the discharge station.
    3. Dust Control Setup: If using additional dust extraction or filtration, position ductwork and sealing gaskets properly for optimal capture.
    4. Proper Air/Power Supply: Verify that air lines (if using pneumatic controls) and electrical connections meet the manufacturer’s specifications.
    5. Operator Training: Provide clear instructions and demonstrations on safe bag loading, unloading, and emergency procedures.

    Integration and Compatibility

    Built to fit seamlessly into existing bulk handling processes, the MTD BBD-4k coordinates well with:

    • Conveying Systems: Discharge directly onto conveyors for downstream processing.
    • Weighing & Batching Equipment: Achieve accurate feed rates with integrated scale systems.
    • Mixing & Blending: Transfer raw materials efficiently to hoppers or mixers.
    • Dust Collection Units: Pair with filter systems to keep fine particles contained during unloading.

    Durability and Maintenance

    Constructed from heavy-duty steel or stainless steel (depending on application), the BBD-4k withstands rigorous daily use. Routine inspections—especially checking hoist cables, frame welds, and discharge valves—ensure longevity. Lubrication points and replaceable wear parts are designed for quick access, keeping maintenance and downtime to a minimum.

    Industries and Applications

  • Food & Beverage: Unload bulk sugar, flour, and other ingredients with hygiene-focused add-ons.
  • Chemical & Pharmaceutical: Manage powders or granules in a controlled environment to maintain purity.
  • Plastics & Resins: Efficiently transfer raw pellets or additives for molding or extrusion processes.
  • Minerals & Aggregates: Handle heavier, coarse materials like sand, gravel, or crushed ores.
  • General Manufacturing: Versatile solution for any large-bag unloading tasks requiring reliability and safety.
  • IMPORTANT
    This Product Requires an Additional Accessory

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    Get A Quote

    Use our contact form to get a quote or call BPS at 330-220-1440

    FAQ

    Frequently Asked Questions

    Can the BBD-4k handle bags larger than 4,000 lbs?
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    The standard design accommodates up to 4,000 lbs. For heavier capacities, consult the manufacturer about potential upgrades or a customized frame.
    What if my material doesn’t flow easily?
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    Optional agitators, massage paddles, or vibration aids can help loosen compacted material. Adding a proper flow control valve also helps regulate discharge rates.
    How can I minimize dust during unloading?
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    Use a sealed spout clamp, integrated dust hood, or connect the unloader to a dust collection system. Proper ventilation and filtration can further contain airborne particles.
    Do I need a forklift or can I include a hoist system?
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    Either approach works. Many models include an overhead hoist assembly for facilities without forklift access. Choose the option that best fits your workflow and space constraints.