Wolfgang Simon, Sales Director at FRITSCH GMBH, talks to AZoM about their new Jaw Crusher PULVERISETTE 1 premium line and the benefits it can bring to the industry.
Could you please provide a brief introduction to the industry that FRITSCH works within and outline the key drivers?
FRITSCH is an internationally respected manufacturer of application-oriented laboratory instruments. Our instruments are used throughout the world in sample preparation and particle analysis. They are used for rapid industrial applications in process control and quality assurance as well as for high precision research applications in industrial and research laboratories.
Could you briefly explain the basic technique of how pre-crushing of hard, very hard and brittle materials works?
The pre-crushing of hard, very hard and brittle sample takes place in the Jaw Crusher under high pressure between one fixed and one movable crushing jaw in an enclosed grinding chamber. The final fineness is defined by the gap width between the fixed and movable crushing jaw. The ground sample automatically falls downward – into a drawer for batchwise comminution or via a chute into a larger collection container.
Jaw Crusher PULVERISETTE 1 premium line
What are the major advantages of using your Jaw Crusher PULVERISETTE 1 premium line?
The Jaw Crusher PULVERISETTE 1 premium line is the most powerful FRITSCH Jaw Crusher ever: with up to 3 kW drive power a faster processing with a significantly higher throughput in shorter times is provided. Feed size up to 95 mm, final fineness 0.3 – 15 mm.
As with all of the instruments in the FRITSCH premium line, we’ve put a great deal of thought into how to make your daily work even easier and time-saving. With new FRITSCH solutions for grinding gap adjustment, easy cleaning, perfect dust exhaust, precise zero-point, unique kinematics and crushing jaws that are especially easy to exchange!
Simple gap wide setting with millimetre accuracy from outside
The gap adjustment, which is responsible for the final fineness is defined with millimetre accuracy from the outside, simply by adjusting the distance between the fixed and movable crushing jaw.
Completely accessible grinding chamber for fast, efficient and safe cleaning
Only the PULVERISETTE 1 premium line has a completely accessible grinding chamber, because the fixed crushing jaw is mounted in a guide and can be removed with a single motion. Also the movable crushing jaw can be swivelled up and locked there. The Clean Design of the grinding chamber enables due to its smooth surfaces an easy and thorough cleaning to prevent cross-contamination.
Completely accessible grinding chamber
Perfect dust exhaust
Beside the integrated dust exhaust channels, which provide optimal working conditions a dust exhaust system can be connected for dust-free operation. The dust exhaust system can be controlled directly using the start and stop button on the instrument. The button lights up in green when the dust exhaust system is ready for operation.
Progressive gap adjustment
Precise gap adjustment is only available from FRITSCH: On the PULVERISETTE 1 premium line, the zero-point adjustment which can be calibrated, is connected with a progressive grinding gap adjustment. With a single motion, the double eccentric can be used to precisely set the grinding gap in millimetre steps – and for the finer particle range, in correspondingly smaller steps.
Zero-point and grinding gap adjustment
Unique kinematics with fast chance
Only the FRITSCH Jaw Crusher PULVERISETTE 1 premium line offers easy, fast and convenient change of the kinematics without altering the gap adjustment with one single motion. Simply select between the settings specified on the instrument “Eccentricity normal” provides the fastest possible comminution due to the approximately circular oscillation of the crushing jaws. Choose “Eccentricity small” to achieve a narrow particle size range through up and down shearing motions. Your advantage: optimal adaptation to the breaking characteristics of the respective sample.
Easy, fast and convenient change of the kinematics
FRITSCH premium advantage:
Combine the Jaw Crusher with the premium version of the FRITSCH Disk Mill PULVERISETTE 13 for efficient fine-grinding. Your advantage: optimal continuous pre- and fine-grinding with a feed size of up to 95 mm down to a final fineness of 0.05 mm in a single step with integrated Riffle Sample Splitter!
What are the primary applications of the product line?
The FRITSCH Jaw Crusher PULVERISETTE 1 premium line is the premium workhorse for pre-crushing of brittle materials in the areas of hard and very hard, brittle materials in the areas of mining and metallurgy, chemistry, geology and mineralogy, glass industry, ceramics industry, rocks and soils. Even the comminution of hardest ferrous alloys is no problem.
How does the PULVERISETTE 1 premium line benefit your customers?
With the NEW Jaw Crusher PULVERISETTE 1 premium line, we offer our customers a premium Jaw Crusher with an edge over comparable instruments. Extra powerful, extremely robust, easy to clean, higher throughput in shorter times, with more practice-oriented equipment elements making daily work even easier, more convenient, faster, safer and time-saving. For premium results and absolute reliability!
Crushing jaw –PULVERISETTE 1 premium line
What type of material is used on this instrument?
The crushing jaws and support walls of the FRITSCH Jaw Crusher PULVERISETTE 1 premium line are available in 6 different materials, like tempered steel, stainless steel, chromium-free steel, manganese steel, hardmetal tungsten carbide and zirconium oxide, to prevent undesired contamination due to material abrasion. The standard version is equipped with fixed and movable crushing jaws as well as lateral support walls made of tempered steel. Normally, crushing jaws and support walls of the same material are used. Since the lateral support walls are subject to low stresses, however, the standard lateral support walls made of tempered steel can often be retained.
For the comminution of RoHS samples – such as for the XRF analysis – crushing jaws made of chromium-free tool steel and support walls made of chromium-free steel are particularly well suited.
For complete metal-free pre-crushing of medium-hard, brittle samples, for example in the ceramics industry for crushing dental ceramics, crushing jaws made of zirconium oxide, lateral support walls made of polyamide or zirconium oxide and a special polyamide-coated funnel and drawer should be used. (Other coatings available on request.)
We can also offer steel crushing jaws with a lengthwise grooved surface, which have a different effect on the particle shape and particle size distribution. The structured surface ensures that the length-to-width ratio of the ground sample is nearly the same. At the same time, the positioning of the crushing jaws makes it possible to achieve a higher share of fi ne particles.
How do you see this technology progressing over the next decade?
In the moment the NEW Jaw Crusher PULVERISETTE 1 premium line is the state-of-the-art instrument and unique on the market. We have to see which benefits and practice-oriented elements are required by our customers to facilitate their daily work.
Where can our readers find out more information?
Up-dated information on FRITSCH Jaw Crushers can be found at www.fritsch-milling.com/jaw-crushers.
New leaflet Jaw Crusher – Disk Mill premium line for download
About Wolfgang Simon
Wolfgang studied Physics at the University of Kaiserslautern and graduated with a Diploma in 1990. He started his career in Sales at Quadriga GmbH selling Technical Laser Systems. In 1994 he joined FRITSCH GmbH as a Product Manager for Particle Sizing Instruments. In 2006 he was promoted to Sales Director of FRITSCH GmbH • Milling and Sizing
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