Collect and Recover Dust from Capsule Filling Machines

In capsule manufacturing, small amounts of excess powder is lost in capsule filling machines; this powder is usually extracted to a central extraction system, blocking filters and wasting expensive products.

A simple and cost effective solution to minimise filter replacement and recover lost powder, is to connect a Powder Recovery Cyclone to the extraction line of encapsulation machines.

Uni-Dust Powder Recovery Cyclone

The Hanningfield Uni-Dust cyclone is specifically designed for the recovery of waste powder from pharmaceutical OSD processes, such as capsule filling machines, typically capturing between 90 – 99.9% of waste powder. Where required, the cyclone can incorporate a manifold for connection to ancillary equipment such as tablet dedusters or capsule polishers.

Powder Recovery Cyclones are proven to be equally effective in numerous other applications including sachet filling, spray drying, inhalation and any other process where excess dust is extracted. The captured waste material can be used for batch loss reconciliation, or even reintroduced to the process (where protocol permits).

How it Works

The cyclone connects to capsule filling machines (or other process machinery) via flexible hose or stainless steel pipework (multiple lines can be accommodated using a manifold).

Inside the cyclone, vortex separation causes the solid particles to hit the outside wall of the cyclone and fall to the catchpot at the base of the cyclone. This allows ‘clean’ air to pass downstream (to the dust extraction source) and prevents a build-up of material in the filters, which can be time consuming and expensive to replace.

For additional security, a HEPA filter can be integrated after the cyclone and before the vacuum source. The cyclone can be retrofitted to your existing dust extraction line, or can be supplied with a side channel blower to provide a dedicated vacuum source.

Uni-Dust Models

The filterless Uni-Dust series of powder recovery cyclones (Type 5, Type 10, Type 20, Type 30, Type 40, Type 50, Type 60) features a crevice-free, GMP stainless steel construction, enabling the unit to be mounted inside the process room (the cyclone can be supplied on a portable trolley, wall-bracket, floor pedestal or free-standing).

Powder Recovery Cyclones are assembled using Tri-Clamps for fast and easy dismantling for cleaning and have no moving parts – therefore generating no mechanical noise. All models are suitable for use in Zone 0/20 ATEX environments both internally and externally.

For greater control over your process, the Uni-Dust cyclone can be modified to include various optional upgrade features including safe-change, level control or sight glass (in catchpot), isolation valve and air balancing valves. All equipment can be supplied with full validation documentation (FS/DS, FAT, SAT, IQ/OQ) and 3.1 mill certificates to EN10204.

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