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Vacuum Conveyors



Technical Description

The Hanningfield Uni-Vac vacuum conveyors are designed as a safe and convenient method for transferring powder.  The system utilises a combination of vacuum and air (known as ‘Lean-Phase’ or ‘Dilute-Phase’) to transport powders, granules and other material. The dust-tight sealed system prevents material contamination during the transfer process, while protecting the operator, process and environment from product exposure or accidental spillage (thereby minimising waste).

The Uni-Vac hygienic ‘V-Series’ of vacuum conveyors (V05, V10, V20, V30, V50, V100) consists of a rolled and seam welded hopper body, which can be customised to suit any requirement. All units are assembled using clamps for fast and easy dismantling for cleaning. The crevice-free, GMP design makes it ideal for demanding applications in the pharmaceutical, food and allied industries where product integrity is vital.

The Uni-Vac is able to satisfy numerous applications including; ‘suck-and-dump’ and direct loading. The Uni-Vac can also be modified with optional upgrade features including level control, line clearance valves, CIP / WIP, HEPA filters, support frames and ATEX execution where applicable. All equipment can be supplied with full validation documentation (FS/DS, FAT, SAT, IQ/OQ) and 3.1 mill certificates to EN10204.




Typical Applications

  • Vacuum Transfer from Drum to Process Machine
    Vacuum Transfer from Drum to Process Machine

    The vacuum conveyor sucks material from the ground floor drum and up into the Uni-Vac hopper. Once full, the outlet valve opens and discharges the material into the machine.

  • Vacuum Transfer into a High Shear Mixer
    Vacuum Transfer into a High Shear Mixer

    Vacuum conveyors can be used as a dust-tight method to transfer powder from ground floor level into a high shear mixer.

  • In-Line Vacuum Milling
    In-Line Vacuum Milling

    In-line vacuum transfer through an over-driven conical mill for achieving automated, dust-tight milling (same process can be achieved with an under-driven conical mill).

  • In-Line Vacuum Sieving
    In-Line Vacuum Sieving

    Vacuum conveying can be used to transfer material through a sieve into a downstream process or container.

  • Direct Loading (into Blender)
    Direct Loading (into Blender)

    Where the receiving vessel is vacuum rated, material can be directly loaded by pulling a vacuum on the blender, with a filter hopper before the pump.

  • Vacuum Transfer into a Vessel
    Vacuum Transfer into a Vessel

    Vacuum conveying can be used to transfer material from a ground-floor drum into a vessel or tank (with modifications this can be made suitable for pressurised vessels).

  • Unloading a Fluid Bed Dryer
    Unloading a Fluid Bed Dryer

    Vacuum conveying can be used to transfer material from a fluid bed dryer after the drying process is complete (shown here with an optional in-line mill for improved PSD).



Brochure Name Description Download Brochure
Uni-Vac Brochure Download PDF Brochure Download


Data Table

Criteria Unit V05 V10 V20 V30 V50 V100
Max. Throughput kgs/hr 300 900 1200 2000 3000 4000
lbs/hr 660 2000 2650 4500 6750 9000
Hopper Diameter mm 270 450 450 450 450 450
in 10.6 17.7 17.7 17.7 17.7 17.7
Hopper Height mm 600 1000 1100 1400 1600 1700
in 23.6 39.3 43.3 55.1 63 66.9
Hopper Capacity litres 5 10 20 30 50 100
Standard Hose Dia. in 1.0 / 1.5 1.5 1.5 / 2.0 1.5 / 2.0 2 2.5 / 3.0
Standard Pump Size kW 2.0 3.0 4.0 5.5 7.5 15.0
hp 2.5 4 5 7.5 10 20
Alternative Vacuum Methods Compressed air vacuum generator (venturi type)
Contact Parts AISI 316L stainless steel (1.4404)
Non-Contact Parts AISI 304 stainless steel (1.4301)
Country of Design United Kingdom
Country of Manufacture United Kingdom


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