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Emptying and Unloading With Vibration

A challenge across many industries is the unloading of bulk solids from hoppers, bins, train carriages, truck trailers, etc. This typically happens with substances that tend to retain moisture and bind together, which reduces flow or movement. Vibration minimises bridging, ratholing and sticking, allowing materials to flow more smoothly and eliminating the need to pound on the side of the container with a mallet or hammer.

At NetterVibration, we produce high-quality vibration equipment engineered to perform a wide range of industrial tasks, from the emptying of products from bins and hoppers to cleaning material residue from equipment. For more information on how our products can contribute to your company’s profitability, call +44 1543 278981.

Emptying Damp Soil from Hopper Cars

A NetterVibration customer in the shipping and transport industry was experiencing difficulty in thoroughly emptying hopper cars of ash upon delivery. Because ash tends to retain some moisture, it was forming clumps and sticking to the inside of the car. Frequently, workers would have to dislodge the ash manually, which is time consuming and risky, or the trains would simply return without completely emptying the car.

The customer purchased an NHW 7000 hydraulic vibrator and, using a front loader, applied the vibration to the hopper car while it was being unloaded. This shook the ash off of the sides and bottom of the car, allowing it to fall freely out of the car. As a result, the car is emptied faster, and because it is emptied thoroughly, it can be re-filled completely, allowing more material to be delivered with each trip.

Products used in this case study
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Emptying Viscous Fluids More Quickly and Completely

A Netter customer in the chemical manufacturing industry working with a highly viscous fluid was experiencing difficulty in emptying the fluid from a barrel. Because the opening through which the fluid was draining was very small, emptying the barrel was a time-consuming process.

The customer purchased and installed a NTS 180 NF linear vibrator. The vibration applied to the barrel improved the flow of the fluid through the opening, reducing the amount of time it took to completely discharge the contents of the barrel. This resulted in a substantial increase in production capacity.

Products used in this case study
  • pneumatic linear vibrators series NTS by NetterVibration
    Series NTS Pneumatic Linear Vibrators

    The pneumatic linear vibrators of the series NTS are especially suitable for conveying, emptying and compacting bulk material. The vibration (sinus-shaped oscillation) is produced by a freely vibrating, self-reversing piston.

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Eliminating Hammering to Avoid Bridging

A Netter customer in the chemical manufacturing industry was experiencing substantial bridging and buildup of product inside its hoppers during emptying, especially when working with fine powders and substances that tended to retain slight amounts of moisture. This meant that the only way to achieve thorough emptying was to strike the sides of the hopper with a hammer or mallet, risking worker safety and potentially causing damage to the hopper.

The customer installed a PKL 740 pneumatic impactor powered by compressed air and fitted with an automation control. By delivering continuous, measured strikes to the side of the hopper with a piston, the PKL 740 made it possible to completely empty the product from the hopper.

Products used in this case study
  • Series PKL Pneumatic Impactors

    Pneumatic impactors of the series PKL are particularly suitable for knocking stubborn residues from walls, pipes and containers.

  • Arbeitszeit-Pausensteuerung AP 117 Vorderansicht
    AP Timer

    NetterVibration provides two different solutions to control all types of vibrators, reducing the noise level at your facilities, maximising the performance and reducing costs.

  • PKL 740 on pipe by NetterVibration
    Customised Consoles for Vibrators

    We have designed and manufactured vibrators and pneumatic knockers for pipes, moving structures, heat exchangers and complexe-shaped silos. Whatever the application, whatever your requirements, we will provide a customised solution, increasing your plant’s performance.

  • solenoid valve MVI by NetterVibration
    Series HVI, LVI and MVI Pneumatic Valves

    Our different kinds of pneumatic valves drive your vibrator at the optimal working sequence, improve your performance and reduce noise in your facilities.

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Emptying Big Bags Completely and ATEX Safely

A chemical industry customer frequently emptied large bags up to 1,000 liters/2,000 kg. of the product into a container, but was unable to empty the bag thoroughly. This required workers to manipulate the bag manually to make sure all of the product had been emptied. Their objective was to provide a way to automate the process so that the bags would empty thoroughly without requiring manual labor. Also, the environment is classified ATEX zone 22 because of the potential for dust so it was required that the system not produce any sparks or discharge static electricity.

The customer installed a NCT 55 E vibrator to a base assembly, allowing the contents of the bags to be thoroughly emptied. Also, the equipment was made according to ATEX Zone 22, eliminating the possibility of sparks or static discharge.

Products used in this case study
  • pneumatic turbine vibrators series by NetterVibration
    Series NCT Pneumatic Turbine Vibrators

    Pneumatic turbine vibrators of the series NCT are particularly suitable for moving bulk materials. They can be used for emptying containers and big bags, driving chutes, sieves and vibrating tables and for the mechanical stimulation of processes.

  • rubber element by NetterVibration under vibration table
    Series NRE, NTE, NOF and NAP Rubber Elements

    Rubber elements are used for isolating the vibration of mechanical components and to provide elastic support of vibration systems.

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Removing Foundry Sand

A Netter foundry customer in France was working with a form that yielded round cores. Due to the shape of the form, which included multiple small crevices and nooks, it was very difficult to clean all of the foundry sand from the founded product.

The customer purchased a vibrating table equipped with a NEG vibrator. Because the table was able to reach huge accelerations, the customer was able to achieve a thorough removal of the foundry sand, besides they were able to adjust frequency and amplitude.

Products used in this case study
  • customised vibrating table with rollers and scale by NetterVibration
    Customised Vibrating Tables

    Whatever your requirements, our team of engineers will offer you a solution meeting your expectations, we are happy to put our 70 years of experience and expertise to work for you and design the right solution for your business

  • [Translate to English:] Serie NEG Drehstrom Elektro-Außenvibratoren
    Series NEG 3-Phase Electric External Vibrators

    Electric external vibrators of the series NEG are used whenever, for example conveyor chutes or sieves need to be driven. In addition, these devices can loosen material blockages adhesion in silos. The 3-phase NEG units run at 750, 1,000, 1,500 or 3,000 min-1 with a 230/400 V, 50 Hz power supply.

  • [Translate to English:]
    Pneumatic Spring Bellows

    Our pneumatic spring bellows are made of reinforced multilayer elastomeric polymer. The steel end plates are securely joined to the bellow walls by means of beading and are airtight.

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