The most important thing of screening machines for grading: SEPARATION PRECISION

Grading is about separating mixtures of solids into different fractions, each with a predefined particle size.

In many manufacturing processes, it is necessary to separate the product into different particle sizes for optimal further processing. Grading screens not only ensure precise separation within the good grain spectrum, they also reliably separate oversized and undersized grains as faulty grains.

The separating efficiency describes the accuracy with which the individual fractions are separated from each other. It should be close to 100% for your classifying screen. However, in industrial screening technology, one hundred percent separation efficiency can only be achieved approximately.

Größere pinke und kleinere blaue Granulate hüpfen über ein Vibrationssieb

Sieving machines | made by Engelsmann:
Why settle for less?

Overview of our
sieving machines for grading

Containment-Sieb JEL Konti 2 CTM vor transparentem Hintergrund

JEL Konti II CTM (Containment)

Versatile and high-performance vibrating screen in applications with containment up to OEB 4.

JEL Regula Standard

Special linear vibrating screener for grading of expandable polystyrene (EPS)

JEL Freischwinger

Energy-efficient, multi-purpose linear vibration sieve for sensitive products

JEL VibSpeed

Simple re-tooling from one to two sieving decks.


Round vibration screening machine with up to 5 sieve decks- for many products and sieving tasks

JEL Konti II

Intelligent sieve change and easy to clean. Our classic.

Sieving machines for grading | made by Engelsmann:
Do you need more details?

This is how you achieve selectivity of up to 99%
in grading

Sieve movement and dwell time on the sieve mesh
The following applies: The longer the product remains on the sieve inserter, the higher is the separation efficiency. Vibration amplitude (= sieve movement) and sieve inclination (= dwell time) must therefore be perfectly adapted to the product to be graded.

Optimum product distribution on the sieve inserters
Distributor bars help with this: when feeding the screening machine, they ensure that the product is distributed over the entire surface of the screen mesh and prevent material from building up too high on it. The result: a permanently stable screening process – even with high throughputs.

Precisely covered sieve inserters
Homogeneous mesh sizes are the be-all and end-all for high separation efficiency. We produce screen inserts according to DIN ISO 9044 and DIN ISO 3310-1. Inhomogeneous or distorted meshes inevitably lead to poorer screening results.

Components and systems | made by Engelsmann.
For good production results with no compromises.

Project Highlights
Screening machines for Grading

Get your sieve solution for grading
in 3 steps


We listen, ask questions
and make suggestions

We analyze your problem and show you possible solutions. Tests in the pilot station with your original product provide process security.


Your machine emerges

Now the work by our designers starts. The sieving machine takes shape in consultation with you. Once you have approved it, our manufacturing team takes over.


It works.

Your sieve solution is ready. Our service team ensures smooth integration and commissioning and will continue to be there for you afterwards.