A series of different screen media arranged one above the other separate the feed material

Customer Support Series Part 11: Kleemann GRADE screen media

The perfect solution for all screening applications

With the GRADE series of screen media, Kleemann offers an extensive portfolio of screen media for all screening needs. Because, choosing the right screen medium plays a decisive role in the achievement of good end results and maximum efficiency.

Screen media face tough challenges in the course of their daily work. The intelligently designed genuine screen media from Kleemann are characterised by particularly rugged construction that assures sustained and reliable screening of the desired material. The choice of the appropriate screen medium depends on the material type, grain shape, desired final grain size and moisture content. The GRADE portfolio offers a wide range of screen media for Kleemannscreening plants – for the upper and lower decks, not only for the coarse feed materials output by MSS series scalping screens, but also for fine screening with pinpoint precision with MSC series classifying screens. The individual screen segments can be freely configured. In addition, a large number of these screen media can also be used in the prescreens of jaw and impact crushers from Kleemann.


Denis Streckel, the screen media expert at Kleemann, invites you to take a closer look at the extensive portfolio.

GRADE: an overview of Kleemann screen media

The various screen surfaces for upper and lower decks ensure perfect end results. Here is an overview of our product portfolio, which offers screen media ranging from scalping screens for the MOBISCREEN MSS series to classifying screens for the mobile screening plants of the MOBISCREEN MSC series.

For the rough stuff:

Screen media for the upper decks of MOBISCREEN MSS series scalpers or prescreens

These robust, heavy-duty screen media include finger screens, slotted grates,and punched plates. They are used for prescreening in the upper deck. Made from wear-resistant material, these screen media guarantee optimal prescreening results.

For precision screening tasks:

Screen media made of spring steel wire

Screening media made of spring steel wire are characterised by lightweight construction and a large, open screening surface that enables the achievement of optimal screening results. They are generally used where coarse, heavy feed material has been prescreened.

QM-GRADE square mesh / rectangular mesh

Square or rectangular mesh screens are all-rounders and specialists that guarantee consistent grain separation in the screening of fine and medium coarse material. They are available in a variety of wire qualities and thicknesses. While thicker wires promise longer service life, thinner wires increase output levels.

Tolles Produkt
Harp screen

Harp screens

PM-GRADE G-harp/piano wire

These are used when materials are particularly moist, muddy, sticky and difficult to screen. The thin longitudinal wires are perfectly suited for the dewatering and screening of muddy material. The flexible polyurethane cross-holder inserts also make it easier to install the screen on the crossbars of the screen casing in the lower deck. The clear mesh size should be selected to precisely match the required grain size.

DM-GRADE S-Harp

S-Harps are suitable for the screening of dry, moist or clayey material. They are the first choice when it comes to precise grain separation. The surface is comparable with that of square mesh screens, but, as the longitudinal wires can oscillate freely, they offer the additional advantage of very good self-cleaning properties.

RM-GRADE W-harp/long slot

W-Harps are used when higher material throughput is required and for the screening of elongated materials. They are constructed with corrugated longitudinal wires that possess a degree of natural oscillation that helps to prevent clogging and caking.

A short digression: News from the world of screen media


Finger screens for coarse screening plants

At Kleemann, screen media are no exception when it comes to continuing development. For instance finger screens, which can be used in coarse screening plants, also known as scalpers. These screens are specialists for the screening of materials such as moist and sticky bulk materials, mixed rubble, clayey soils and grass sods, which are otherwise hard to separate. Due to the vibration of the bars, they also impress with very good self-cleaning and, consequently, high throughput levels. They are also suitable for the separation of slabby and bulky screening materials. Their robust construction protects against rapid wearing, also when screening coarse and heavy feed materials.


Hexagonal punched plates

Punched plates are used primarily in gravel processing, recycling and the processing of natural stone. They guarantee particularly precise separation. The punched plates with hexagonal perforations are a further development of their counterparts with round holes. The hexagonal design significantly increases the open screening surface and the conical form of the holes simultaneously reduces the risk of material clogging. The result: higher product quality, maximum plant productivity and less wear.

Head and shoulders portrait of Denis Streckel

Useful tips from application expert Denis Streckel

  • Tip 1: When looking for the right screen media for your applications, always take the feed size, the moisture content and the grain shape of the material into consideration. Choose the appropriate screen medium on the basis of the required final grain size. Should you have any questions, Kleemann would be glad to help you to make the right choice.
  • Tip 2: Precise horizontal alignment of the machine is absolutely essential for assuring even material flow. Throughput can be optimised by adjusting the inclination of the screen in the screen casing. The steeper the angle, the greater the throughput can be. In such cases, a screen medium with larger openings must be chosen. Particularly precise results can be achieved with lower screen inclinations, but the downside of this is lower throughput.
  • Tip 3: In order to avoid damage in the case of two or three screen decks, the size ratio to the next lower screen deck should not exceed 4:1. Regularly check the screen media for correct tensioning and worn areas that could eventually lead to breakage. Clean the screen surfaces daily to remove adhesions. It is always advisable to order replacement screen media in good time before damage to your existing screens makes them unusable. In the case of applications involving abrasive feed materials, it always makes good sense

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