Which extraction unit to choose

Choose the right Xtract unit

With this step-by-step plan, you can easily determine which extraction system is best suited to your situation. We take you step by step so that you know exactly what to look out for.

Step 1 - Determine THE REQUIRED DRAIN CAPACITY

For each machine, look at the diameter of the suction nozzle(s) and the air speed specified by the manufacturer. In practice, there are handy guidelines.

• An air speed of 25 m/s is usually used for standard machines.
• For multi-axis solid woodworking machines, such as four-sided planers and tenoning machines, 28 m/s is often required.
• For larger sheet metal working machines, such as CNCs, cut-up saws and edgers, the air speed is usually between 30 and 35 m/s.
• These speeds are measured in the diameter of the inlet and not in any hood, where the speed is lower.

Since all Riedex installations comfortably achieve these speeds, it is ultimately the total air volume that matters. Add up the required capacity of all relevant intake points.

Step 2 - Count only what you use simultaneously

Not all machines are on continuously. What matters is how many machines are running at the same time in the busiest scenario.

• Only count the capacities of the machines you actually use simultaneously.
• Make sure each machine has a shut-off valve that is closed when the machine is off.

This will prevent you from choosing too large an installation.

Step 3 - Consider frequency of use

The capacity of a plant varies between a maximum and a minimum volume, depending on how much dust is in the filters.

• In periodic use, you count with the maximum volume.
• For prolonged and intensive use, count on the minimum volume.
• Do you work extremely intensively, for example with fire-resistant board material? Then a system with continuous filter cleaning during operation may be the answer.

Step 4 - Choose the right filter for your material

The type of material you process will determine which filter works best.

• If you process mainly bulky waste, then assume maximum volume.
• If you work mainly with fine dust, then you calculate with the minimum volume.
• If the waste contains aluminium particles, you need ultrafibre filter material.
• If you work with silica-containing dust or other deviating substances, such as Promatect or Fermacell, Teflon-coated filter material is required. 

Step 5 - Arrange efficient collection and disposal

Finally, look at how much waste is released and how best to dispose of it.

• For small quantities, collection in plastic bags in roll containers (max. 160 litres) is often the simplest solution.
• For larger quantities, you can opt for a container solution. In RV set-up, the system can stand on an elevation so that you drive a container under it.
• Do you have more than 2 m³ of waste every week? Then a moth container of around 30 m³ may be of interest.
• If you want to work compactly and cleanly, a briquette press is an elegant solution. It compresses waste into small blocks that take up little space and burn well.

What we need from you

To advise you properly, we ask you to:

• an overview of your machines with the diameters of the suction nozzles and the required air speeds;
• An estimate of how many machines you use simultaneously;
• A brief description of your usage pattern (intermittent or intensive);
• the material you mainly process and any special features;
• Your preference for waste collection and disposal.

The next step

Would you like to be sure about capacity and filter selection? Book a no-obligation consultation with one of our dealers so that we can draw up a specific proposal featuring the Xtract unit that’s perfectly suited to your workplace.