TPRS420 Rotary Soil Sieve FAQ

See the TPRS420 in action below:

The machine is designed for versatility:

• Standard Drum: 20mm holes (Ideal for removing large stones and debris).
• Mesh Insert: 10mm mesh (Ideal for creating fine topsoil or compost).

We strongly recommend trying to dry wet material before processing it. Wet soil is heavy and prone to clogging the mesh holes ("blinding"), which stops the sieving action. If you must process damp soil, feed it in smaller batches to prevent motor strain.

You can download the full PDF assembly handbook here:

We stock a full range of spares, including replacement drums, belts, and wheels.

The drum sits on support wheels that can accumulate dust and grit.

• Clean Regularly: Brush down the support wheels after use.
• Avoid Heavy Grease: Do not use thick grease on the external rollers as this attracts grit, which acts like grinding paste. Use a dry silicone spray if lubrication is needed.