Vacuum Conveying:
The Principle
Examples of Conveyed
Materials
Vacuum Conveying:
Cost Example

Our Conveyor Designs
VR - Vacuum Conveyors
PPC - Vacuum Conveyors
Tablet-Conveyors
Vacuum Conveyors
with Inerting Option
Pressure-Proof
Vacuum Conveyors
Vacuum Conveying
inside Explosion-Zones
Vacuum Conveyors
with Weighing and
Measuring Function
Loading and Unloading
Stations for Vacuum
Conveyors
Suction of Liquids

Applications:
Chemicals
Dye-Powder and Pigments
Pharmaceuticals
Tablets, Capsules and
Dragees
Food

Complete Solutions for the
Handling and Processing
of Powders

Inquiry Form for
Vacuum Conveyors

Vacuum Conveying of ignitable materials
Vacuum Conveying inside Explosion-Zones

When powders and bulk materials are conveyed or loaded inside explosive and hazardous areas, special aspects have to be considered, as electric discharges caused by the electrostatically charged product are possible:

• What are the surrounding conditions at the loading and unloading point?
• Does the material itself bear an explosion risk? Is it inflammable?
• Is the product easy chargeable?
• What happens with the product during the transport and unloading?

Special measures can be necessary, if inflammable atmospheres and gases are present in addition to the conveyed material, if the minimum ignition energy (MIE) of the material is below a critical value (usually 1-3 mJ), if exothermal reactions take place or if bigger clouds of dust are generated during the discharge cycles of the conveyor.

Volkmann offers best practice solutions for such applications. All new Volkmann Vacuum Conveyors of the VR and PPC series can be regarded “explosion-proof“, if the MIE of the conveyed materials is bigger than 3 mJ (after risk assessment also for materials with MIE > 1 mJ) and if no inflammable gases are present.

The first Vacuum Conveyor acc. ATEX!

All new VOLKMANN Vacuum Conveyors of the VR and PPC series are ATEX certified in accordance with directive 94/9/EG. EC-type examination certificate No. TÜV 02 ATEX 7005 X. For safe operation special terms/conditions apply.
II 1 D c 80°C / II 2 GD 100°C (for the Zones 1, 2, 20, 21, 22)
Special Conveyors for Zone 0 available.

Additionally, Volkmann offers special Vacuum Conveyors with inerting system for such applications, where solvents or inflammable gas atmospheres occur and need to be considered. These Special Conveyors can even load powders and granulate materials into reactors with a solvent/alcohol atmosphere inside (for Explosion Zone 0).

However, in such critical applications the conveyor is determined by local demands for the conveying task. The many advantages of Vacuum Conveyors shall be kept to make the work easier and safe, to the benefit of the work force and environment (no contamination or spill, easy and lightweight handling, perfect cleaning of all internal surfaces, GMP-conform design...). Only sometimes our „Maximum“-Conveyor in a pressure-proof design is necessary. Make it easy AND safe. You won’t just save money – your production-team will be happy to work with better and easy-to-use equipment.

Volkmann stands for engineering and bespoke fitted products. We design solutions in close cooperation with our customers worldwide. Talk to us and take advantage of our solution based on many years of experience in the chemical-, pharmaceutical- and food-industries.