Harp screens are a type of screen that is primarily used for screening difficult-to-screen materials, such as wet and abrasive materials. The harp sieve’s construction is such that the longer wires are clamped to each other at a relatively large distance by a transverse bond, ensuring that, in addition to screening machine vibrations, the screen produces its own dissonant frequency, which prevents the screen meshes from sticking and clogging.
Harp screens are only available with tensioning folds, which are required for the screen’s proper operation. Wire or polyurethane braids are included with the screens, extending their life and increasing their efficiency. When ordering harp nets, we recommend selecting a mesh size that is 10% smaller than the mesh size of a wire screen with rectangular meshes.
WIRES THAT ARE HORIZONTALLY CRIMPED (SERFESTA)
The horizontal corrugation of the wires, which are arranged and held side by side in such a way that they form a square mesh shape, is the primary feature of this screen. They are used to screen dry and wet, difficult-to-screen materials that have a round, cubic, flat, or needle grain form.
- Without sacrificing the fineness of the screening, a direct replacement for square mesh screens is available.
- Suitable for all types of grains
- Even with flat and needle-shaped grains, the corrugation of the wires allows for relatively precise screening.
WIRES THAT ARE VERTICALLY CRIMPED (NORMAL)
Harp screen with a large open area and excellent permeability for wet and difficult-to-screen materials with round or cubic grain form. Flat and needle-shaped materials are not suggested. It is made up of vertically crimped wires intertwined at a set spacing to form a rectangular mesh.
- High permeability and efficiency
- Suitable for screening items that are tough to screen.
- It is not advised for screening needle and flat grain materials.
STRAIGHT AND HORIZONTALLY CRIMPED WIRES (DOSER)
Harp screens are designed to screen vast quantities of material. It is made up of triangular mesh made up of longitudinally horizontally corrugated and straight wires. The tensioning force is taken over by the straight wires, while the corrugated wires vibrate and self-clean. This screen design enables the screening of a larger amount of material. Aside from that, unusual wire bonding has a relatively high screening accuracy and a decent performance.
- Larger quantities of material can be screened with this machine.
- Over tensioning is not possible due to the screen’s construction.
- Suitable for all types of grains
STRAIGHT WIRES STRING SCREENS (CLEAN PURE)
A permeable harp screen designed for screening clay and other difficult-to-screen materials having a round or cubic grain form. It is made up of longitudinal straight wires that are linked by polyurethane at specific intervals. The huge open area and good performance of this screen architecture are its distinguishing features.
- Clay materials can be screened with this machine.
- Open space and high performance
- Material with needles and flat grains is not suggested.
These are some of the brief points on harp screens that can help you in understanding it. Hope you got all the basic information in regards to the product.
