Harp Screens， also known as self-cleaning screens or non-blinding screens / piano wire,
In general terms Harp Screens will screen at double the rate of the equivalent aperture Woven Wire.
They are used for difficult to screen materials, where blinding and pegging make screening with square mesh difficult.
Harp Screens increase productivity and can make an unviable operation viable.
They make screening of sticky and damp materials possible, where screening with a woven mesh would be impossible
Why Harp screens work:
1. Increased open area, up to 90%
2. No cross wires, therefore no corners for fines to build from.
3. Smaller diameter wires than mesh, so less surface area for fines to adhere to.