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The three main types of flow problems when discharging from silos are: bridging, rat holing and segregation.

Shaking the container generally discharges the product, which may be difficult and dangerous when the container is a 200 ton silo. The solution to this problem is to shake the contents not the container.

Utilizing a flexible sleeve between the container, and placing a cone under the material, it is possible to shake the contents without shaking the container.

The BA-Bin Activators work by the application of vibrations to the cone which de-aerates the product. The product will bridge, and the bridge will be broken by the vibration. Flow is ensured but not regulated.

The BA-Bin Activators are required anywhere that it is essential to be sure the material is discharging from the silo.

The BA-Bin Activators have been manufactured since the 1980's. Since then the equipment has exhibited excellent quality and performance features in thousands of applications all over the world. As a result, the current BA-Bin Activator models are the most technically advanced discharging devices for powders or granules from bins, silos or hoppers available on the market today. They offer some unique benefits to users in virtually all industries for a wide variety of installations. Introduced into an apparently simple piece of equipment, some significantly innovative design features further increase performance and reliability in operation.

Bin Activators are the perfect solution when dealing with large silos and hoppers. In this case, vibrating the bin itself is not only ill advised, it’s a real safety concern. Bin activators impart vibration directly to the material, and isolate the vibration from affecting the bin itself through the use of a flexible rubberized sleeve. Deca bin activators are the safe, effective option for anyone who wants to move material from a large bin.

A Word About Selecting a Bin Discharge

  • Because powder flow, and the application of flow aids is such a unique area of study, Deca recommends that you contact a specialist company to guide you through the selection process. It can’t be overstated that every application is unique. If you expect the best results, experience counts!
  • Generally speaking bin activators are utilized in any large silo where bridging is a concern. They are sized specifically to address the nature of the material flow issue taking care not to oversize the unit which carries serious risks of damage to people and property. Sometimes small or undersized units are utilized in cases where an additional or intermittent flow aid is all that is required. However, undersizing your bin activator can cause issues which include rat holing due to limited material activation. The corresponding material cascade will not only disrupt production but could cause damage to both the health of your workers and to your property.

Benefits of Deca Industrial Bin Activators

  • Extremely safe, secure connection with integrated upper and lower flange connection
  • No Weld Design
  • Easy installation

Available Options

  • Custom installation for silos made of aluminum
  • Large selection of drive motors
  • Deca can provide complimentary fluidization systems
  • Emergency slide gates
  • Negative pressure systems
  • Explosive environment versions available

Call Deca today to discuss your project with one of your material flow experts. They will walk you through the process of selecting the best solution for your needs!
Unit of Measure


N/A 10 ft3,000 mm

Standard Outlet A

N/A 16.0 in406 mm

Standard Outlet B

N/A 117.3 in2,980 mm

Standard Outlet C

N/A 77.0 in1,955 mm

Standard Outlet H

N/A 61.5 in1,563 mm

Quantity of Vibrators

N/A 2

Maximum Power (Hp)

N/A 1.5 hp @ 60 Hz


N/A 5,120 lb2,320 kg

Sleeve Seal

  • Manufactured from highly resistant engineering polymer SINT®ER: suitable for all applications
  • FDA-approved engineering polymer SINT®AL available


  • Heavy-duty
  • 360-degrees movement
  • No large size vibrators required

Baffle Plates

  • Convex deflector baffle plate
  • Conical deflector baffle plate with 15 º - 30 º - 45 º - 60 º angle
  • Compound deflector baffle plate

Electric Motor-Vibrators

  • Asynchronous three-phase motor
  • Vibrator with adjustable eccentric weights
  • DECA vibrator motors are easy to install and to retro-fit


  • Flour Milling
  • Feed Milling
  • Fertilizers
  • Chemicals
  • Plastics
  • Ceramics
  • Glass


N/A The BA-Bin Activators are available in 3' 4' 5' 6' 7' 8' 10' diameter. Other sizes supplied on request.

Easy Assembly

N/A To ease installation and commissioning, DECA supplies the BA-Bin Activators as a kit complete with simple and clear assembly instructions (only positioning and nutsand- bolts fitting operations are required). To retrofit existing bins, silos or hoppers with a BA-type Bin Activator, in advance DECA optionally supplies a matching high definition plasma cut flange for on-site welding to the structure.


N/A The BA-Bin Activator seamless cones are industrially manufactured on automatically operating metal spinning lathes. The contact surfaces of the particularly robust cones, which are available in carbon steel or 304L/316L stainless steel, are perfectly smooth.


N/A The BA-Bin Activator suspensions ensure that vibrations generated agitate the cone rather than the bin, hopper or silo structure. Unlike the unidirectionally operating conventional hanger suspensions, these tubular shape suspensions enable a 360-degree movement which provides complete absorption of vibrations. Furthermore, oscillation required is considerably less which results in smaller size vibrators.

Sleeve Seal

N/A These Bin Activators are all equipped with an easy-to-fit flanged seamless sleeve seal manufactured from polymer cast SINT®ER. Thanks to its particular geometry and a special industrial manufacturing process, any welding, glueing or sewing process is avoided. The special design prevents slipping of the seal, material leakage and ensures high durability over time. The excellent mechanical characteristics of SINT®ER guarantee high resistance to stress inflicted by vibration, or by excessive or suction pressure conditions inside the silo. The absence of clamp retainers eliminates the risk of cutting or puncturing of the sleeve. Durability is further increased by the mounting position outside the material flow. For food-grade applications the same seals are available in FDA-approved SINT®AL engineering polymer.


N/A Thanks to the innovative configuration of the BA-Bin Activators, the installed drive power of the vibrators is relatively low, with the eccentric weights adjusted at 20% leaving a sufficient margin of increase. If required, retro-adjustment is easily done.

Baffle Plates

N/A Depending on the application, baffle plates come in different configurations and angles (optionally 15, 30, 45 or 60 degrees). For large diameters special stepped-angle deflector baffle plates are available.


  • Additional material aeration device
  • Outlet spout complete with emergency slide gate

Key Features

N/A Carbon or Stainless Steel (304 or 316) Compact but Heavy Duty design Custom baffle plates Diameter Range: 16 in - 10 ft Extra durable gaskets and suspensions Extremely low power consumption FDA, High Temp and “Wash down” duty versions Flow Rates 3 - 190 cfm Reduced weld design Seamless cone design