All you need to know about types of Harp screens
Harp screens are unique shapes of wires that are joined to provide an effective self-cleaning with a demanding feed. Harp screens are made straight out of woven wire solution and used in screening classification for moist, sticky materials and other to-screen materials.
Harp screens come in TYPE-T triangular meshes and TYP-K square meshes. Due to the vibrations of the wires, harp screens are involved in a group of self-cleaning effects of the screen, which ultimately results in an increased screen efficiency compared to the braided screens.
The harp wire webs are made of abrasion-resistant material, resulting in a much longer screen life than wire webs. Harp screens are made from high-quality wires resulting in more extended operations.
Features of harp screen
- The extended longitudinal wires are crimped or turned straight are fixed with relatively wide-spaced cross supports.
- The vibration works against the risk of sticking and pegging.
- These materials are recommended for complex screens and attach to the conventional woven wire.
Different types of harp screens available in the market
- ISEVENO Harp
Iseveno harps are highly crimped wires alternating with straight wires drawn side by side in a horizontal way to connect the cross sections of bindings made of molten plastic or metal wires. The spacing across the bindings can be varied to match the specific requirements of the machine support divisions and materials needed to be screened.
The most remarkable feature of this type of harp screen is straight and crimped wires that develop different oscillations. The characteristic feature ensures screening operations are essentially free from blinding, mainly covered with moist or sticky material maintaining a good separation precision.
- ISERPAL Harp
The ISERPAL consists of crimped wires arranged side by side and held with cross wire or plastic molten, resulting in a mesh with an aperture in an essentially square race. The spacings available for cross bindings are not constant, which are eventually adapted to suit the screening machine to support the materials that need to be screened.
The most beneficial feature of this type of harp screen is the free vibrations across the nature of the independent wire, with a relatively stable square mesh wire providing good precision.
N-Harp screen consists of vertical, slightly crimped, drawn side-by-side positions across wires and molten plastics. The length of the slot comes down between the woven wire and the spacing of the cross wires. The spacing needed for the cross wire is variable and made for the suit affecting the screening machines that support the material.
The crimped wire standing vertical to the material to be screened in the material flow can be slowed down and loosened. This type of harp screen is distinguished by a vast open area which gives a surety to high screen performance.
Tip- this type of harp screen is not advisable for flat and spear-like materials.
The ISEVIER-Harp is made straight from the wire arranged side by side and held in the position of molten plastic. The spacing of the cross bindings determines the resulting slot lengths. The spacing for the cross bindings is variable and can be adapted to suit the difference of the machine supported by the screened.
The harp provides an excellent screening performance with a very long life. This type of harp screen is not advisable for brittle and elongated spear-like materials.