Sito harfowe

Harp screens

Do you need a screen to classify materials with high humidity and low flowability? Use the potential of PROGRESS harp screens. The special shape of the wires and the way they are joined provides the effect of self-cleaning even with a very demanding feed. The self-oscillation of the wires eliminates screening. PROGRESS SCREENS provides screens with hooks for mounting on all types of screens and sorters.


Screens to the vibrating screening machines

Screens for sorters



Wytrzymałe sita producenta Progress Screens

Product advantages

Use the potential of PROGRESS

harp screens in screening and classification processes:


  • Self-cleaning effect

  • High ratio of open area

  • Extended lifetime

  • Wide range of openings and wire diameters

Manufacturing technologies

Using specialised knowledge and a modern machinery park, harp screens are made in the form of screens with TYP-T triangular and TYP-K square opening. Depending on the working conditions, we recommend the use of metal, rubber or polyurethane bands.

Produkcja sit harfowych


TYP-T harp screens


Harp screens with a triangular opening are perfect for screens that require a strong tension


TYP-K harp screens


Harp screens with a square opening use only precrimped wires, increasing the self-cleaning ability

Flat wire harp screens


The use of flat wire increases load resistance, extends service life and increases screening efficiency


In the improvement and development of product and material solutions, we use the experience of our engineers and our own Research and Development Centre.


Currently, harp screens with triangular opening TYP T are offered in the range of 1.2 – 20 mm openings and wire diameter 0.8 – 6.3 mm.


Currently, harp screens with TYP-K triangular openings are offered in the range of 1.8 – 35 mm openings and wire diameter 0.8 – 4.5 mm.



We provide detailed technical information in respect of individual requests.

Wytrzymałe sita przemysłowe

Ferrules and finishes

A wide range of brackets for transversal and longitudinal tension ensures proper installation of PROGRESS woven screens on all types of sifters and sorters.

Sita przemysłowe - Dział Konstrukcyjno-Technologiczny


The woven screens used in various conditions require the use of the highest quality spring, stainless and acid resistant steel. Their immediate availability is ensured by our material policy, and optimal selection by support of our Construction and Technology Department.

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