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No. Procedure Scope of Test Required Sample Quantity Required Sample Particle Size Comminution Drying
1 Bulk density Bulk density mandatory mandatory
2 Sieving Particle size distribution mandatory mandatory
3 Point load test Compression strength 30 - 50 particles 25 - 70 mm (typical Ø 50 mm) mandatory not applicable
4 UCS Compression strength 30 - 50 particles Cube of 50 or 70 mm edge length, alternatively drilling core (cylinder) optional not applicable
5 Wear disc test Wear determination 5 - 10 particles 180 - 220 mm optional not applicable
6 HAZEMAG Abrasion test Wear determination 4 x 400 g 12.5 - 19 mm mandatory not applicable
7 Chemical analysis Chemical composition and free SiO2 content 500 g < 150 mm mandatory mandatory
8 Rock texture analysis Crushability forecast 3 particles 130 - 170 mm optional not applicable
9 Hardgrove Test Grindability of coal 2 kg ≤ 100 mm optional not applicable
10 Laboratory impactor Crushability and wear determination 40 kg 10 - 25 mm mandatory not applicable
11 Moistening and Drying Determination of moisture content and saturation point - mandatory mandatory
12 HAZEMAG adhesion measuring device Determination of the potential of clogging of cohesive soils Soils and clays only optional optional
13 • Liquid Limit
• Plastic Limit
• Plasticity Index
• Consistency Index
Determination of the potential of clogging of cohesive soils Soils and clays only optional optional
14 Laboratory roll mill Determination of crushability 20 kg < 35 mm optional not applicable
15 Hammermill Crushability, wear and energy requirement determination For grinding & drying: Remaining moisture content 2 Big Bags or 10 kg for quick test < 45/50 mm Additional with hot gas generator for drying optional not applicable
16 HSI impactor Crushability, wear and energy requirement determination 4 Big Bags < 220 mm optional not applicable
17 HTI impactor Crushability, wear and energy requirement determination 4 Big Bags < 150 mm or < 70 mm for sand application optional not applicable
18 HRC / HCS Crushability, wear and energy requirement determination 1 Big Bag or 20 particles for quick test < 150 mm optional not applicable
19 HRD Remaining moisture content, particle size distribution and energy requirement determination 5 - 6 Big Bags ≤ 100 mm not applicable mandatory


A place for practical, application specific, raw material investigation. A program that helps to establish valuable information specific to your project goals, material processing needs and the potential use of HAZEMAG equipment and services. It’s all about you: The HAZEMAG Customer!

It goes without saying that you are invited to accompany the tests in our Test Plant, and this would also be a great opportunity to discuss your project in detail.

A wealth of experience is to be found behind the operation of every HAZEMAG product, backed by a level of partnership and product support that remains second to none. Our application knowledge, equipment flexibility and market competitiveness put us in a unique position to react to your precise project needs. We call it “Partnership Unlimited – The HAZEMAG Way”.

The existing plant facilities allow for equipment to be combined and operated within the following groups:

  • Laboratory Testing
  • Coarse Crushing / Screening
  • Fine Crushing / Grinding
  • Drying
  • Grinding & Drying


To ensure that field conditions are replicated as close as possible, machines at the Test Plant are all from the current HAZEMAG range of equipment.

The layout of the Coarse Crushing section has been designed to use one of the two Impactors, or the Roll Crusher. If a screening unit is used, oversize material can be returned to the feed material flow (closed loop operation).

The Fine Crushing and Drying section, with a Hammermill and Rapid Dryer, forms another core part of the test plant.

The Hammermill has been integrated into the system in such a way that a range of crushing/grinding & drying operations are possible.

In the section set aside solely for Drying Technology and the Processing of Wet Feed Materials, is a Rapid Dryer with HAZEMAG rotary gate valves for feeding and discharge; fine material is separated via cyclone and filter.

The whole plant is computer-controlled, and there is a visual display of the current operational status of all units. A total of six basic menus are available, which can be modified as needed.

During the test process, the status of the individual equipment, such as the power input of the electric drives, the rotor tip speed of the crushers, as well as the various system temperatures, are all displayed. Pre-programming of various parameters is also possible.


All the results from tests carried out in the HAZEMAG Test Plant, as well as any other special tests and investigations, are evaluated in the Test Plant’s own laboratory.

Tests can be carried out to determine the following:

  • Plant Capacity
  • Power Requirements
  • Granulation Curves
  • Wear Rates
  • Thermal Loads
  • Moisture Contents

The data collected forms the basis for fulfilling users’ requirements.


For specific detailed tests, the following are also available:

  • Laboratory Crusher
  • Laboratory Roll Mill
  • Adhesion Measuring Device
  • Casagrande Liquid Limit Apparatus
  • Hazemag Abrasion Test Equipment (Pennsylvania Test Method)
  • Point Load Tester

Feed materials (representative samples) for comminution or drying tests must be provided by the customer free of charge. Please refer to the table ‘Test procedures and Sample Description’ (see brochure) with regard to required quantities and sizes. For the test numbers 15-19, we require delivery in 1,000kg bulk bags. Smaller quantities may be delivered in barrels, or similar. Please feel free to contact HAZEMAG to discuss in detail the amount of test material that is needed for your specific project.



The test sample should be identified with the following information:

  • Company Name
  • Contact Person
  • Telephone Number
  • Description of Material (For example, Limestone)
  • Identification (Such as Project, Site, etc.)



Required raw material and process data:

  • Chemical and/or mineralogical analysis
  • Hardness and compressive strength of the feed material
  • Moisture content of the supplied material and (in the event of deviations) the humidity of the typical feed material
  • Source of the material
  • Your requirements for the product
  • Desired intended use and purpose
  • Safety data sheet of the material (if applicable)

HAZEMAG Systems GmbH

Global Testing and Research Center
Brokweg 75
48249 Dülmen



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