Grinding & Dispersing

High-speed mill system ZETA® Type LMZWet grinding and dispersing into the nanometer range

our technologyYOUR SUCCESS

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Quality, functionality, profi tability

Suitable for any viscosity and almost every product, you will achieve the highest product quality and fi nenesses into the nanometer range with this technology using a wide variety of grin-ding beads from 90 µm to 3 mm in diameter.

The grinding system for circulation and multi-pass operation

The ergonomic design along with ease of product changeover and cleaning simplify daily operation of the machine –the easy accessibility facilitates service and maintenance.

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LMZ 10 high-speed mill with grinding media collection cart

Operation terminal Emergency stop Sealing fl uid pressure unit Motor Contact pressure gauge

Product inlet Cooling water outlet Grinding media fi ller Product outlet Drain plug

Contact thermometer (outlet)

Agitator shaft Grinding chamber Tank removal assembly

Grinding media collection cart

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The powerful grinding system

The ZETA® grinding system represents continued development of the John system combined with the rotor-slotted pipe separation system. The enclosed horizontal agitator bead mill is designed for the highest product throughput and is equipped with a high-intensity pin grinding system.

The product fl ows horizontally through the agitator mill from the inlet on the bearing side and exits via the slotted pipe at the bottom of the chamber. The guided fl ow of the product through the media intensive grinding zone ensures

uniform loading within the mill. The dynamic separation system reliably holds the grinding media inside the grinding zone. This enables the highest throughput rates without the build-up of pressure in the grinding chamber and creates the ideal conditions for circula-tion or multi-pass operation.

For precise temperature control, the agitator mill is equipped with a multiple-zone cooling system. In the standard model, the grinding chamber, solid shaft and product outlet can be cooled to prevent product overheating. As

an option, the slotted section of the agitator shaft can be cooled as well. Complete fl ow around the slotted shaft not only increases the cooling surface area, but the effi ciency of the heat transfer as well.

Grinding chamber designs in various materials and new control concepts expand the range of applications.

Sectional view of the ZETA® grinding system

Your advantage is our focus

Pin grinding system with the highest grinding intensity

Fineness into the nanometer range

Very narrow particle size distribution

Highest effi ciency

Exact reproducibility

High effi cient centrifugal separation system

Use of grinding media as small as 90 µm

Designed specifi cally for the highest throughput rates

Ideal for circulation/multi-pass operation

Optimal energy input with effective cooling

Ideal temperature control through a multiple-zone cooling system

Functionality and effi ciency

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The ZETA® high-speed circulation system is a grinding system that is equally appropriate for many applications ranging from processing very low-visco-sity products to grinding products with a high solids concentration and corres-pondingly high viscosity. NETZSCH-BEADS® are grinding media

Unlimited versatility

ideally suited for the ZETA® grinding system and are available in a variety of materials and sizes ranging from 0.09 mm to 3 mm in diameter.The product-wetted parts of the grin-ding system can be supplied in different materials. Depending on the application, materials such as polyurethane (PU),

ceramic, wear-resistant special steels and stainless steel are available. A pharmaceutical model of the grin-ding system is also available. The multiple-zone cooling system allows the processing of products at very low temperatures.

Standard model - in highly wear-resis-tant special steel for the processing of solvent-based products.

Ceramic model - for iron-free grinding of abrasive, contamination-sensitive solvent-based products. The product-wetted grinding chamber components are available in zirconia, silicon nitrite and silicon carbide.

Polyurethane model - all product-wetted parts are PU-coated for „iron-free“ processing of contamination-sensi-tive, water-based products.

Pharmaceutical model - the DELTAVITA® series in a polished, porosity-free stainless steel design with cleaning/sterilization unit.

Universally applicable for any product

Can be scaled up from laboratory machine to production machine

Safe and reliable use of a wide range of grinding media from 0.09 mm to 3 mm

NETZSCH -BEADS® grinding media, in particular the ZETABEADS® and the ZETABEADS® PLUS are ideally

suited for the high performance ZETA® grinding system

Achieve optimal product quali- ties with better performance and improved energy effi ciency

Additional product-optimized grinding chamber confi gurations available upon request

Exchangeable inner tank

Your advantage is our focus

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Reliability and comfort

The ZETA® grinding system is in every respect a very user-friendly, low-mainte-nance and reliable grinding system. The structural design of the agitator mill has a number of advantages:The horizontal orientation ensures homo-geneous distribution of grinding media in the grinding chamber.Thus, start-up of the mill with product is unproblematic. The highest fl ow rates can be set without pressure build-up. The double-acting cartridge-type mecha-nical seal is mounted in the low-fl ow

Safe and reliable operation

grinding chamber area. The mechanical load due to grinding media is minimal. The product outlet is located directly on the grinding chamber fl oor and therefore easily accessible. The maintenance-free slotted pipe within the grinding chamber prevents the discharge of grinding media when the machine is idle. During opera-tion, the bead retention screen is kept clear of the grinding media by the rotor of the separation system, thus preventingbead compression and blockage. A displacement device in the slotted pipe

increases the fl ow speed in the outlet area and, in conjunction with short pipe-lines, prevents product entrainment. Optional cooling of the displacement device lowers the temperature of the product inside the agitator bead mill.

The optimized cleaning concept with circulation wash system allows nearly residue-free cleaning of the agitator

Cleaning made easy

bead mill with minimal cleansing agent, all without emptying the grinding chamber.

Your advantage is our focus

Horizontal design simplifi es maintenance

Homogeneous distribution of grinding media throughout the grinding chamber

No grinding bead compression

Double-acting cartridge-type mechanical seal

Easily accessible separation system

Maintenance-free slotted pipe

Easy, practically residue-free cleaning

Adjustable-speed circulation washing systems

LMZ 25 high-speed mill with zirconia grinding chamber design

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Ergonomic design

The machine stand for the ZETA® series is of one-piece construction and is therefore very stable and vibration-free.

The feed pump is mounted directly on the machine stand, shortening distance between the pump and the grinding chamber and thus minimizing product loss.

When the grinding chamber must be opened for maintenance, the removal assembly provides an expedient moun-ting aid. Disassembly of the grinding chamber and tank bottom requires no addi-tional lifting equipment. The integ-rated service cart holds the entire bead charge and prevents loss of grinding media during maintenance.

Your advantage is our focus

Ergonomic design

Supply pump mounted on the machine stand

Short pipelines

Integrated tank removal assembly

Bead collection cart prevents loss of grinding media

Coolable rotor

LMZ 60 high-speed mill with tank removal assembly and bead collection cart

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Control and monitoring with no bounds

You have the choice

Whether you choose the standard version or integration into higher-level process control systems:an abundance of control options are available for the ZETA® grinding system.Providing the capability for effi cient process control with the aid of energy input detection, the standard version NETZSCH BASE already exceeds the required safety functions. The automatic

screen-cleaning sequence allows trou-ble-free processing of the most challen-ging products. Starting with the NETZSCH TEXT control system, the mill runs automatically with pre-set operating parameters.NETZSCH GRAPH offers various control strategies, the measured values are graphically associated with the test points on the display, each formula can

be automatically processed according to individual parameters.In addition, we offer integration into higher-level control systems as well as data acquisition hardware and software – just discuss with our specialists.

NETZSCH BASE

NETZSCH TEXT

Display of operating parameters: - Pump speed, product pressure, product temperature, drive motor power consumption, kWh counter

Input of nominal and threshold values:- MAX product pressure, MAX product temperature, MAX pump speed

Default values for automatic operation - Machine is run up to the default values

Measurement and display of the agi- tator motor performance

Malfunction lights to indicate values outside the boundary limits

kWh counter to record the energy input (kWh), preset value for process shut-down and display toggling to current power input (kW)

Reset button for kWh counter to reset to zero

Infi nitely adjustable agitator and pump speeds via frequency conver-ter with:- Digital speed indicator and FAST/ SLOW dials for the agitator and pump- RINSE/RUN selector switch

Automatic screen-cleaning sequence

Display of operational and error mes- sages:- „Refi ll“ sealing liquid- Sealing liquid level MIN- Sealing liquid pressure MIN- Grinding chamber pressure MAX- Product temperature MAX - Product fl ow MIN

Automatic screen-cleaning sequence

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High degree of operational reliability

Versatile control options

Quality assurance via energy input

Automatic screen cleaning sequence

Maximum machine effi ciency through control of the agitator speed as a function of the pro-duct outlet temperature

Preselection of agitator shaft speed according to power consumption

Speed adjustment via frequency converter

Easy integration into plants and higher-level process control systems

Your advantage is our focus

NETZSCH GRAPH

Display of operational, input and cal- culation parameters:- mill speed and peripheral speed, gross and net mill power, pump speed, product pressure, product throughput, product temperature and more ...

Display of trend graphics for the most vital operational data

Capability to save nominal values as control parameters of a recipe (max. 98 values)

Automatic operation with acquisition of control parameters from a recipe

Input for all operational modes of a batch

Applicable control strategies: - control of power, temperature, throughput or pressure

shut-off functions can be selected and combined:- Timer- Energy input and/or number of passes- Depending on a maximum pressure value for pass operation

Automatic screen cleaning sequence

Data acquisition

The data acquisition system records values measured by the machine and consists of the hardware required to transfer the measurements through an Ethernet connection and the software for upload to a PC.Both, the input and measured values

are saved in a CSV fi le and the current values are displayed. The storage interval can be set by the user in steps from 1 s to 10 min. After the data have been successfully recorded, further evaluation can follow in a spreadsheet program.

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Variety of models and applications

The ZETA® grinding system is available from the LABSTAR laboratory mill with a grinding chamber volume of 0.6 l all the way up to production machines with grinding chamber volumes of 150 l.

Full scale-up of results achieved on the laboratory scale possible.

From laboratory to production scale

LABSTAR laboratory agitator bead mill

Portable model of a small modular plant with the LMZ 10 high-speed mill

Type LABSTAR LMZ 2 LMZ 4 LMZ 6* LMZ 10 LMZ 25 LMZ 60 LMZ 150

Grinding chamber volume [l] 0.62 1.6 4 6 12 25 60 150

Batch size [l] 1.2 - 7.0 50 100 160 500 2 000 > 2 000 > 4 000

Drive [kW] 3 5.5 - 7.5 13.5 - 15 13.5 - 15 17.5 - 22 36 - 45 75 - 90 160 - 250

Length [mm] 1 210 1 100 1 345 1 400 1 660 2 040 2 450 2 900

Extended length [mm] - - - - 2 110 2 700 3 290 4 070

Width [mm] 730 725 750 750 1 000 1 320 1 420 1 200

Height [mm] 680 1 550 1 655 1 655 1 645 1 800 2 000 2 600

Weight [kg] 150 270 600 650 1 300 2 300 3 700 6 800

* no ceramic designs available

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The LMZ high-speed mill can be easily integrated into plants of simple design all the way up to fully-automatic production plants.

Best plant integration

Printing inks: e.g. fl exo-gravure (chip quality)

Inkjet ink

Paints

Dyes (textile, synthetic)

Pigment preparations, pigment pro- duction, phthalo blue conversion

Fillers

Pesticides

High-tech products: e.g. color fi lters, polishing agents for electronic components

Pharmaceuticals, cosmetics

Thermal paper coatings

Magnetic coatings

... and many more

Wide range of applications

Your advantage is our focus

Complete plants from a single source

Solids feed stations, solids dosing systems liquids dosing systems and PMD stationary mixers

Innovative pre-dispersion tech- nology with the Ψ-MIX® inline disperser

Effi cient ZETA® wet grinding system for the high-speed circulation grinding process

Plant for the production of nitrocellulose or polyurethane-based packaging ink

www.netzsch.com

NETZSCH-Feinmahltechnik GmbHSedanstraße 7095100 SelbDeutschlandTel.: +49 9287 797-0 Fax: +49 9287 797 149info.nft@netzsch.com M

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The World’s Leading Grinding Technology

NETZSCH-Feinmahltechnik GmbH, Selb, Germany

NETZSCH-CONDUX Mahltechnik GmbH, Hanau, Germany

NETZSCH Premier Technologies, LLC., Exton PA, USA

NETZSCH Indústria e Comércio de Equipamentos de Moagem Ltda., Pomerode, Brazil

NETZSCH (Shanghai) Machinery and Instruments Co., Ltd., Shanghai, China

NETZSCH Mastermix Ltd., Lichfi eld, Great Britain

NETZSCH-España, S.A., Terrassa/Barcelona, Spain

ZAO NETZSCH Tula, Tula, Russia

The Companies of the Business Unit Grinding & Dispersing

The NETZSCH Group is an owner-managed, internationally operating technology company headquartered in Germany. Three Business Units – Analyzing & Testing, Grinding & Dispersing, and Pumps & Systems – provide tailored solutions for highest-level needs. Over 2200 employees at 125 sales and production centers in 23 coun-tries across the globe guarantee that expert service is never far from our customers.

The Business Unit Grinding & Dispersing is part of the NETZSCH Group.