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Weighing and dosing

Weighing and dosing

Weighing and dosing bulk products into a process

It is often necessary to weigh and dose powder, amongst other bulk materials, into a process. Let’s take the addition of sugar into a mixer as an example from the food industry.

According to the recipe, a total of 150 kg of sugar must be added to the mixer. The conveyor system used requires ten conveying cycles of 15 kg each. Depending on the design of the system, delivery rates of up to 4 t / h are also possible. The accuracy of the system is 99 – 99.7% of the target weight to be achieved.

Weighing and dosing bulk products

The removal from different pick-up locations is possible as well as the adjustment and storage of recipes. A quick intervention in the process is possible via the device control’s intuitive touch display. In addition, the entire process can of course also be controlled fully automatically.

The Volkmann CONWEIGH is a combined conveying and dosing system and is usually used for adding quantities from 2 kg upwards per unit.


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#VacuumConveyorSystem #Hygienic #Dosing #Food #CrystalSugar #Vanillin #PowderedSugar #ExplosionRisk #Powder #Granules # Bulk #ExProtection #MinimumIgnitionEnergy #MIE

Feed bagged goods in the process

Feed bagged goods in the process

Feed large quantities of bagged goods in to the process

There are many processes in which bulk products need to be introduced in large quantities from sacks and bags. For example, in to a mixer or stirred tank, this is often the case in the food or chemical industries.

RNT 180 with lumpbreaker and conveyor belt

The sacks are loaded on to the conveyor belt which transports these to the loading station activated by a foot switch, where the sacks are then opened and emptied. A waste chute makes it possible to dispose of the empty bags laterally into a waste bag compactor.

To help reduce the dust inside while loading there is the option to either connect the product loading station up to a local extraction system or to have a dedicated vacuum conveyor for dust removal.

lump breaker

If the product tends to form lumps during storage, a lump breaker can be connected under the feed hopper. This crushes lumps up to about fist-sized lumps.


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#BaggedGoods #EmptySackCompressors #ConveyorBelt #LumpBreaker #Food #Chemistry #Lumps #Agglomerates #Volkmann #VacuumConveyors #VacuumConveying #RNT180 #DustExtraction

Conveying and dosing in the food sector

Conveying and dosing in the food sector

Conveying and dosing of powders and solids in the food sector

In regards to bulk goods the food industry is very interesting because hardly any other sector can offer such a variety of different powders, granules and bulk or piece goods.

A wide variety of handling tasks for example the finest powders, corn starch, spices, mushrooms and even bacon cubes. In terms of process technology, the methods for transport and dosing are as diverse as the products themselves.

Purely mechanical conveyor systems often reach their limits, be it for hygienic reasons or for explosion protection reasons. A simple screw conveyor, for example, conveys product, but it never gets completely empty and is difficult to clean.

At the same time,  granulated sugar, for example, places so much stress on the mechanical system that powdered sugar is produced, which in turn has a very low minimum ignition energy (MIE), which increases the risk of explosion. Vanillin powder tends to form lumps in dosing screws, which can undoubtedly disrupt the subsequent mixing process. Vacuum conveyors in combination with vibratory feeders can elegantly solve these problems.


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#VacuumConveyor #Hygienic #Dosing #Food #CrystalSugar #Vanillin #PowderedSugar #ExplosionRisk #Powder #Granules #Bulk #Exprotection #MinimumIgnitionEnergy #MIE

Metal powder handling

Alu+Edelstahl Pulver

The correct handling of powders within the additive manufacturing industry

Whether it is metals or plastics there are numerous different powder handling tasks to be solved within the Additive Manufacturing (AM) industry.

However, for various reasons, metal powders represent a greater challenge for powder handling. This involves the powder supply to the 3D printers the recovery of unbound material and its reclassification and recovery (recycling) for reuse.

With the Volkmann PowTReX, the combination of the process steps of vacuum conveying, controlled sieve dosing and ultrasonic screening represents a compact platform to solve these demanding tasks.

Printer and PowTReX

In connection with the correct container and container handling, safe, sealed and – if necessary – inert powder handling can be achieved. This means that not only stainless steel powders, also aluminum and other sensitive metal powders, for example, can be safely handled.

You can find more information HERE: Additive Manufacturing


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#Volkmann #PowTReX #MetalPowder #StainlessSteel #Aluminium #3Dprinting #Classification #Recovery #VacuumConveying #PowderHandling #AdditiveManufacturing #Inert

PPC 200 INEX chemistry

PPC 200 INEX chemistry

INEX conveyor with HALAR coating

A powdery intermediate product from the chemical industry is to be removed from a container – still wet from the centrifuge manufacturing process- and conveyed into a dryer.
The container is on the third floor, the dryer is on the second floor. The customer required a safe and reliable conveying system for the transfer, as the mix of materials are difficult to handle and reactive.

The product from the centrifuge is still wet (wet cake) and contains, among other things, dichloromethane and toluene. Because of this, all parts in contact with the product have been provided with a conductive coating (HALAR). In addition all parts who comes into contact with the gas-air mixture has been coated to prevent the surfaces from corroding.

The Multijector vacuum pump was also made entirely of PVC.

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#Volkmann #PPC #INEX #ExplosionProtection #GasExZone #Coating #HALAR #ChemicalResistance #Chemistry

Weighed product loading task

Weighed RNT hopper

Pre weigh product batch and load to process on demand

Do you need to add a pre weighed product batch into your process? Our modified bag loading weighing station – RNT 180 makes it possible to safely and reliably introduce a pre-weighed quantity into your process, for example into a mixer.

The various ingredients can be pre weighed and loaded into the station before use utilising the inbuilt weighing system. As soon as required, the whole load can be easily transferred into the process by vacuum conveying

The RNT hopper is mechanically isolated to allow accurate weighing. Vacuum transfer of materials ensures minimal dust is generated during loading

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#Volkmann #RNT #BaggedGoods #Weighed #Dosing #MixerLoading #Automation #Industry

Double big bag emptying station

Double big bag emptying station

Double big bag emptying station for limited space unloading areas

Restricted unloading area solution: With this project a room with limited space has allowed us to develop a big bag emptying station with which two big bags can be emptied simultaneously.

The big bags are hung in harnesses and lifted using a winch. The mobile docking stations are pushed under the big bags and are equipped with devices for low-dust connection for emptying of the big bags.

With two feeding adapters per docking station, the material to be conveyed is fed into the subsequent processes via a total of four VS250 vacuum conveyors, in this case loading four mixers.

The product unloaded and conveyed is sodium bicarbonate.

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Double big bag station with winches and mobile docking stations.
Reduced height for use within limited space areas.

#Volkmann #BigBagStation #Dischargingstation #Ropewinch # VS250 #Powderhandling #Dockingstation # Dust-freeconveying # Vacuumconveying #ATEX

We are still there for you.

We are still there for you.

Bulk material handling: VS450 + VS200LT vacuum conveyor

VS450 and VS250Eco vacuum conveyors just before shipping.

Do you have materials that need to be added to a process or transported within your production area?
The Volkmann vacuum conveyors are low-maintenance, hygienic and quick to clean. Also suitable for fragile or delicate product.

Our application experts will be happy to answer your questions about vacuum conveying and bulk material handling. >> Contact


#Volkmann #vacuum conveyor #VS450 #VS200LT #bulk material handling

Volkmann Empty Sack Compactor

Volkmann Empty Sack Compactor

Volkmann emptying station for bagged goods

  • with partly automated container feeding and dust extraction
  • optimised for the use with vacuum conveyors
  • NEW: Now also with empty sack compactor

The dust-free handling of solids is nowadays more than ever in the focus when processing bulk materials. Occupational safety and hygiene requirements must be observed, explosion protection according to ATEX must be adhered to. Volkmann solutions offer safety in the handling of bulk materials. The range of the RNT product loading stations for bagged goods was supplemented by an empty sack compactor which includes a dust free connection to the product loading station and shares its integrated dust extraction.

The emptied containers/sacks are collected in foil and mechanically compacted. Depending on the container size, the collection volume of the empty sack compactor is sufficient for ca. 40 – 100 units. The product loading station and empty sack compactor are entirely made of stainless steel and are completely manufactured in our company. We happily make custom systems. Volkmann develops imaginative solutions for the handling of various bulk materials for the chemical, pharmaceutical and food industry.

  • Vacuum conveyors: Designs according to industry, hygiene and pharmaceutical/eGMP standards
  • Product loading stations for sacks, big bags, drums, IBCs
  • Weighing and dosing systems for bulk material handling
  • Stationary and mobile lifting columns for vacuum conveyors
  • Consulting, planning and manufacturing from a single source

Intelligent Compact Control for Vacuum Conveyors

Intelligent Compact Control for Vacuum Conveyors

With the new ET-Advanced, Volkmann provides the users of vacuum conveyors with a modern and intelligent electropneumatic compact control. The control ensures the smooth operation of the vacuum conveying system and evaluates thereby up to four incoming signals from level sensors and one local start signal.

Operating mode 1:

Automatic suction cycle, determination of the filling level in the vacuum conveyor, adjustment of the suction time no longer necessary

Operating mode 2:

Monitoring of receiving container, automatic operation of the vacuum conveyor, feeding of material into receiving vessel with min or min-max sensors.

Operating mode 3: Monitoring of collection point

Operation of the vacuum conveyor only in presence of material at the collection point, status signal in case of fault

Adjustable times are:

  • Discharging time vacuum pump start delay
  • Suction time
  • Pipe emptying time (pipe emptying valve in conveyor suction line)
  • Delay of filter cleaning pulse
  • Discharging valve adjustable with NO/NC

Volkmann develops imaginative solutions for the handling of various bulk materials for the chemical, pharmaceutical and food industry.

  • Vacuum conveyors: Designs according to industry, hygiene and pharmaceutical/eGMP standards
  • Product loading stations for sacks, big bags, drums, IBCs
  • Weighing and dosing systems for bulk material handling
  • Stationary and mobile lifting columns for vacuum conveyors
  • Consulting, planning and manufacturing from a single source

 

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