High-efficiency laboratory bead mill

New milling process at the highest level.

Proven performance in the filed of dispersion, ultra fine wet grinding and nano wet grinding with thousands of installations worldwide.

Your expert partner for finest dispersion and wet milling down to nano size particles

For decades. WAB has been a leading specialist in the field of grinding and dispersion with thousands of the world famous DYNO®•MILL products installed worldwide. The many products that are required to be milled demand contact material of the highest quality. With its extensive program of mills and experi­ ence gained over decades. WAB delivers the right solutions for all machines and products to ensure that you produce the finest quality products in a repeatable process.

Evolution in the design of high-efficiency laboratory bead mills

• Batch sizes of 1 litre can be processed continuously
• New WAB separation system
• Scale-Up to higher chamber volume DYNQ®MJLL ECM-AP models
• Housing made of stainless steel for universal applicability
• High throughputs and production capacities
• Easy processing of highly viscous products
• Increase of the wear resistance of contact parts
• Ability to use beads with a size starting from 0.1 mm

Properties of the Process

• Designed for running in single/multi-pass or circulation. with a constant efficiency in both processes for the achievement of narrow particle size distributions
• The patented DYNQ®-Accelerators produce a powerful hydraulic movement of the beads which guarantee a high and constant energy input
• The mill has a low energy uptake due to its efficient energy input
• Soft milling and soft grinding capability
• Ideal cooling properties allow the processing of temperature sensitive products

Handling

• Easy operation of the mill thanks to the well-designed control concept
• Easy-to-clean stainless steel housing
• Guide rails integrated into the mill housing facilitate the dismantling of the milling chamber/cooling cylinder unit
• Cooling cylinder made of a combination of stainless steel and aluminium for lightweight handling.
• Small volumes of the grinding chamber enable fast product changes at low costs
• Simple cleaning with small amounts of cleaning agents
• Change of the separation system without the need to open the grinding chamber
• Increased lifetime of the screen
• Registration of the process parameters and guarantee of the reproducibility with the optional WAB VIEW process control

New Separation System of the DVNO®-MILL ECM-AP The new separation system of the DYNO®•MILL ECM-AP shows a unique forced circulation of the beads The circulation of the beads is caused by the newly developed invert wall which directs the beads into an axial flow over the screen Afterwards, the DYNQ®-OSE-Accelerator directly conveys the beads back to the invert wall . Together with several other improvements, this new separation system delivers numerous advantages for our customers!

Milling in the Nanometre Range

Due to the new improved WAB separation system. bead sizes down to 0.1 mm can be used. The DYNQ®-MILL ECM-AP mills improve milling times and reduce production costs when suspensions with particle size distributions in the nanometre range are needed. The range of mills covers a wide spectrum. To date grinding chamber volumes between 0.5 to 60 litres are available to satisfy varying capacity needs.

Higher Throughputs and Production Capacities

The new generation of mills was consistently designed for an increase of the throughput. The increase of the possible throughput leads to more flexibility in the choice of process parameters.

In the circulation process, high throughputs usually have a positive influence on the production capacity. Experiments in our laboratory have already shown that much higher through­ puts can be realized with the new DYNO(!:-MILL ECM-AP series. Besides an increase in the production capacity, a higher num­ ber of circulations can also lead to a narrower particle size distribution.

Better Ability to run Highly Viscous Products

The combination of an optimized circulation of the beads and a much higher cross-sectional area for flow through the screen. results in a great improvement in the ability to process highly viscous products.

Here the directed axial flow of the beads over the screen surface removes coarse particles from the surface of the screen, allowing a better flow through the screen. The free flow through the screen is not reduced, because this self-cleaning effect prevents block­ ages. An increase in the pressure, which can take place with highly viscous products, is therefore avoided.

Additional Optimizations of the Grinding Chamber

Further modifications in the entire grinding chamber have been designed, in order to make sure that the innovations mentioned above complement each other:

• Optimized geometry for the flow in the product inlet
• Easy-to-clean stainless steel housing
• Newly developed central degassing unit which improves the processing of foaming products
• New conception of all mechanical machine parts, according to the highest standards

The Advantages of the DYNQ®-MILL ECM-AP 05 mill at a Glance

• Batch size of 1 litre possible
• Scale-Up to higher chamber volume DYNQ®-MILL ECM-AP models
• Housing made of stainless steel
• High throughputs
• Ability to process highly viscous products
• Longer lifetime of the screen
• Improved ability to handle foaming products
• Ability to grind in the nanometre range
• Simple handling of the machine
• Possibility for fast product changes at low costs
• Optimal suitability for the pass mode and the circulation mode

Evolution in the design of high-efficiency agitator bead mills

• New separation system of the WAB DYNQ
• New design of the grinding chamber allows higher throughputs and production capacities. especially for highly viscous products
• Ability to use beads with a size of 0.1 mm

Properties of the Process

• Designed for running in single/multi-pass or circulation. with a constant efficiency in both processes for the achievement of narrow particle size distributions
• The patented DYNQ®-Accelerators produce a powerful hydraulic movement of the beads which guarantee a high and constant energy input
• The mill has a low energy uptake due to its efficient energy input
• Ability to handle low to highly viscous products
• Ideal cooling properties allow the processing of temperature sensitive products
• Gentle processing as a result of hydraulic movement of the beads

Handling

• Easy operation of the mill thanks to the well-designed control concept
• Easy-to-clean stainless steel housing
• Guide rails integrated into the mill housing facilitate the dismantling of the milling chamber/cooling cylinder unit
• Cooling cylinder made of a combination of stainless steel and aluminium for lightweight handling.
• Small volumes of the grinding chamber enable fast product changes at low costs
• Simple cleaning with small amounts of cleaning agents
• Change of the separation system without the need to open the grinding chamber
• Increased lifetime of the screen
• Registration of the process parameters and guarantee of the reproducibility with the optional WAB VIEW process control

New Separation System of the DVNO®-MILL ECM-AP The new separation system of the DYNO®•MILL ECM-AP shows a unique forced circulation of the beads The circulation of the beads is caused by the newly developed invert wall which directs the beads into an axial flow over the screen Afterwards, the DYNQ®-OSE-Accelerator directly conveys the beads back to the invert wall . Together with several other improvements, this new separation system delivers numerous advantages for our customers!

Milling in the Nanometre Range

Due to the new improved WAB separation system. bead sizes down to 0.1 mm can be used.

The application of the DYNQ®-MILL ECM-AP improves milling times and reduces production costs when suspensions with particle size distributions in the nanometre range are needed.

The range of mills covers a wide spectrum. To date grinding cham- ber volumes between 0.5 to 60 litres are available to satisfy most production capacity needs.

Higher Throughputs and Production Capacities

The new generation of mills was consistently designed for an increase of the throughput. The increase of the possible throughput leads to more flexibility in the choice of process parameters.

In the circulation process, high throughputs usually have a positive influence on the production capacity. Experiments in our laboratory have already shown that much higher through­ puts can be realized with the new DYNO(!:-MILL ECM-AP series. Besides an increase in the production capacity, a higher num­ ber of circulations can also lead to a narrower particle size distribution.

Better Ability to run Highly Viscous Products

The combination of an optimized circulation of the beads and a much higher cross-sectional area for flow through the screen. results in a great improvement in the ability to process highly viscous products.

Here the directed axial flow of the beads over the screen surface removes coarse particles from the surface of the screen, allowing a better flow through the screen. The free flow through the screen is not reduced, because this self-cleaning effect prevents block­ ages. An increase in the pressure, which can take place with highly viscous products, is therefore avoided.

Additional Optimizations of the Grinding Chamber

Further modifications in the entire grinding chamber have been designed, in order to make sure that the innovations mentioned above complement each other:

• Optimized geometry for the flow in the product inlet
• Newly developed central degassing unit which improves the processing of foaming products
• New conception of all mechanical machine parts, according to the highest standards

The Advantages of the DYNQ®-MILL ECM-AP mill at a Glance

• Much higher throughputs
• Better ability to process highly viscous products
• Longer lifetime of the screen
• Improved ability to handle foaming products
• Ability to grind in the nanometre range
• Simple handling of the machine during the production and the maintenance
• Possibility for fast product changes at low costs
• Optimal suitability for the pass mode and the circulation mode

Grinding container volume of 0.6 to 60 litres

The DYNO®-MILL KD is an agitator bead mill with horizontal grinding container. Specially designed agitator discs, mounted symmetrically on a shaft, transfer the energy required for wet milling and dispersion to the spherical grinding beads. An external pump feeds the product into the mill. Separating systems are available in the form of static sieves with different slit widths or dynamic gap separators with adjustable gap width.

Function

Product inlet DYNO®-MILL agitator discs made of a wide range of materials Coolable grinding container with silicon carbide grinding cylinder Cooled grinding container with easily replaceable grinding cylinder made of hardened or stainless steel, hard chrome-plated stainless steel, polyurethane and engineered ceramics Dynamic gap separator Sieve separator Product outlet

Features

Ideal for passage process with constant efficiency and achievement of the narrowest possible particle size distribution in the micrometre range

• The optimum configuration for every product with an extremely wide choice of materials for parts wetted by the product - including hardened and stainless steel, hard chrome-plated stainless steel, polyurethane and engineered ceramics
• Maximum operating safety - the basic model already complies with CE and ATEX (Ex II 2 G cb IIB T3)
• Grinding bead diameter range of 0.3-2.5 mm
• Adaptation of the grinding chamber volume to the batch size, combined with an ideal cooling process due to the flow in the cooling jacket, permits processing of temperature-sensitive products
• Easy to use - all DYNO®-MILL KD types can be taken apart in just a few steps, allowing simple and rapid changeover to a different mill configuration
• Simple operation and easy setting of operating parameters
• The consistent mill design enables scaling up to any size of the DYNO®-MILL KD series
• Low operating and maintenance costs

Material Selection

The DYNO®-MILL KD can be equipped with wearing parts wetted by the product which are made of steel, plastic or engineered ceramics. The following materials may be used, depending on the intended purpose of the mill and the function and size of the components:

• Steel
• Polyamide
• Polyurethane coating
• Aluminium oxide
• Aluminium oxide reinforced with zirconium oxide
• Zirconium oxide stabilised with yttrium
• Silicon carbide

All mills, from laboratory to production scale, can be equipped with ceramic or non-metallic parts wetted by the product. Additionally, thanks to high quality and design standards, most mills can easily be retrofitted with engineered ceramics or non metallic parts wetted by the product.

Special Designs

For the cosmetics, pharmaceutical, food and biochemical industries, WAB can deliver the DYNO®-MILL completely made of stainless steel and with specially adapted installations to suit customer needs. Below are some examples of the versions available to meet individual customer specifications:

• Machine housing made of stainless steel grinded with grain size 160
• Rinse liquid container with cooling coil and hose connectors made of stainless steel
• Wearing components wetted by the product made of zirconium oxide
• Agitator discs made of zirconium oxide
• Product inlet and outlet with welded stubs and Tri-Clamp connections
• Cooling jacket suitable for cooling / heating media from -15°C to 110°C
• Hygienic tubular PT 100 and pressure gauge
• Hermetically sealed machine housing with forced air ventilation
• Water-cooled main motor