First over the Line - is the Winner - Neuman & Esser


First over the Line - is the Winner - Neuman & Esser


Impact Classifier Mills

Powerful for Sharp Top Cuts

Impact classifier mills serve for dry fine and finest grinding

of brittle materials with a hardness of up to 3 Mohs.

The impact fine sizing mill ICM combines the efficient

impact milling with the efficient classification in a single


The fed materials are thrown by the milling tools at a

speed up from 60-130 m/s into the liner and are afterwards

size reduced. Following the ground material is

transported to the integrated classifier for separation.

The fineness is then infinitely adjustable over the classifier

revolution speed. Particles that are too large are

rejected by the classifier and returned to the milling

zone for continued size reduction.

The throughputs for the 25 diverse sizes are between

10-22,000 kg/h.

The advantages of the ICM impact classifier mills are

found in the creation of a steeper particle size distribution,

the proven DD Direct Drive Concept, the heavy

duty design as well as the easy handling and cleaning.

The scope of application covers powder coatings

including chemical products up to food and sweets.

A New Generation

for Pendulum Mills

The pendulum mill, a type

of roller mill, is suitable for fine

grinding and drying while grinding

of minerals, clays, pigments

and chemical products.

The mill comprises of mill housing

and a rotor with a crosshead and

pendulum, which rotates with a

circumferential speed up from

6-8 m/s around the vertical miller axle. Centrifugal

forces, which are thereby utilized, have the effect of

crushing the materials between the grinding rollers

and grinding ring.

A rotating shovel is positioned in front of every pendulum,

which carries the fed milling material from the mill

base into the grinding zone between the grinding rollers

and the grinding ring.

Both the coarse and the fine milled materials are then

carried by the air flow from the grinding zone to the

classifier wheel, which can be continuously adjusted to

the required particle size. The coarse product is

displaced by the classifier and falls back into the

"First over the Line - is the Winner"

NEUMAN & ESSER started in the 1930's to also

become involved in milling equipment manufacturing.

When looking back it was a clever step to take,

because NEA Grinding and Classifying Systems

belong today to the leading manufacturers of

pendulum roller mills and impact classifier mills.

Close to 80 years experience in mechanical processing

technology and the continuous dialogue

with clients form the principles for the high performance

and quality level of NEA milling and classification


Client close and innovative power paired up with

flexibility underlines the continuous readiness for

market orientation.

The product program comprises today of impact

classifier mills, pendulum mills as well as cyclone

collectors and air separators for coarse and fine


Tests are implemented in the spaciously dimensioned

test center, so that a safe mill and system

dimensioning is facilitated for the client production


After Sales Service and individual solutions for the

modernization and retrofit of existing grinding

systems complete the product range.

grinding zone

for further

crushing. The

fine product

on the other

hand flows

with the air

through the

classifier and

is separated by a filter. The capacity for the 10 mill

sizes range from 100 up to 80,000 kg/h.

A promising new development is the "PM Direct Drive".

With this mill, access to the interior component parts

is greatly simplified, so facilitating a substantial

shortening of maintenance-induced shutdown times.

Classifier head and the upper mill housing can be automatically

opened by means of swiveling device. This

facilitates a speedy exchanging of milling rotors with a

diverse individual number of pendulums. With this new

concept the gearbox and clutch are no longer required

because the milling rotor is driven directly by a motor.

In January 2009 there were a total of 5 patent application

registrations made for this concept.

Cyclone Classifier Mark III

for Highest Requirements

Air classifiers are separating solid

materials according to their varying

sinkage speeds in the air flow.

Classifying technology is on the

advance, because the air separator

offers advantages with reference to

product fineness and solid material


Currently a classification of solid materials

with particle sizes of up to less than 5 μm is possible

at throughputs of up to 22,000 kg/h.

The newly patented cyclone classifier CSF Generation

III is usually operated as an inline-air separator downflow

the grinding system.

The milling and the first cut at the coarse end of the particle

size distribution takes place in the grinding equipment.

The cyclone classifier then takes over an effective

second cut in the fine grain sector. The high sharpness

of cut of the NEA design increased the product

yield by up to 30%. Alternatively with conventional

yields, a higher product quality can be achieved, which

means a lower fine dust proportion is realized.

The cyclone classifier is available in 25 diverse sizes.

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