Process technologies for tomorrow.

The perfect solution for polymer powders in 3D printing

ADDITIVE MANUFACTURING

ENGINEERED, MANUFACTURED & ASSEMBLED in GERMANY

ENGINEERED, MANUFACTURED & ASSEMBLED in GERMANY

JUST AS FINE AS YOUR 3D PRINT PRODUCTSPolymer powders from a specialist broaden your scope of application

The manufacture of polymer products for 3D printing is increasingly

becoming a genuine challenge, since the trend is moving towards

ever finer products. In addition to limiting particle distribution in the

upwards direction in the 70 – 100 μm range, dedusting is also often

required in order to separate the amount of < 10 – 20 µm dust that

interferes with printing. In order to achieve perfect results with which

you can ideally work, you need specialists like us from Hosokawa.

The Contraplex CW II wide chamber mill

FINEST GRINDING FOR OPTIMUM RESULTS

THE ADVANTAGE TO YOU: WE WORK WITH THE

IMPROVED CRYOGENIC GRINDING PROCESS

Turn our advantage into yours

and benefit from

› Optimised grinding tools

› Reduced LN2 consumption through

optimised temperature control

and an enhanced whirling motion

screw cooler

› Resulting reduced energy

consumption and approx. 10%

saving in costs

› Improved process control –

particularly in case of return

of coarse material from a screen

or visual process

› Perfect powder quality through

inline or offline dedusting

With the Contraplex CW II, Hosokawa Alpine offers

you the optimum solution itself through cryogenic grinding

for extremely sophisticated products.

OUR SERVICES FOR THE CRYOGENIC GRINDING PROCESS:

› Product-specific processing and packing according

to your instructions

› Processing in accordance with specifications including

exact compliance with fineness and mixing ratios

› Utmost quality and hygiene standards

› In-process documentation and quality control

› Sample dispatch and analysis

› Full service logistics

A FINE SERVICE: TOLL GRINDINGLet others do the grinding for you: preferably us!

YOU ARE RELIEVED FROM MAJOR INVESTMENTS AND RISKS

YOU CAN REMAIN FLEXIBLE, SINCE NO PERSONNEL COMMITMENT IS INVOLVED

YOU CAN COMPENSATE FOR CAPACITY BOTTLENECKS

YOU CAN CONCENTRATE ON YOUR CORE BUSINESS

Hosokawa Micron Powders is your reliable partner when it comes to toll grinding!

REFERENCE CROSS-SECTION

The right solution for every requirement

THE ESSENTIAL ELEMENT: PROPER CLASSIFYING

Dis

trib

utio

n su

m Q

3(x)

in %

100

80

60

40

20

0

0 10 100 1.000

Particle size x in µm

POLYMER < 100 d97 d90 Throughput [%] [µm] [µm] [kg/h]

PE 32 460 400 143

PP 22 325 245 78

PA-6 59 282 220 330

PA-6 95 122 104 70

PVC 57 320 170 66

PS 72 163 66 110

PMMA 83 130 120 143

Not all classifying processes are alike. In order to achieve perfect

particle size distribution, two different processes are possible,

depending on the product, batch size and task:

INLINE: Grinding process with integrated screening / classifying

OFFLINE: separate screening and / or classifying stage

FINE, FINER, FINEST.

Separation of coarser particles after grinding can in most cases be

performed most economically by using tumbler screening machines.

They are installed downstream of the grinding stage.

An additional dedusting of the product in the < 10 – 20 μm range

or an upper particle size limitation in the 70 – 100 μm range usu-

ally represent a major challenge for producers. This is where the

Hosokawa Alpine air classifiers come into their own, which allow

infinitely adjustable separation cuts for upper particle size limita tion

or for removal of the dust content. Our classifiers can be operated

inline with the grinding plant but equally efficiently offline.

PARTICLE SIZE DISTRIBUTION OF A PA-6 POWDER

REQUIREMENTS

› psd 10 – 100 µm

› d50 = 50 – 60 µm

› Small proportion of particles

< 10 / 20 µm and > 100 µm

The table provides the guideline values

for comminution of different polymers on

the CW II classifier mill.

ADVANTAGES OF INLINE CLASSIFYING

› More compact installation,

reduced footprint

› Less handling expenditure,

lower personnel costs

› Lower investment costs

› Less effort required for cleaning

› Simpler explosion protection concepts

ADVANTAGES OF OFFLINE CLASSIFYING

› Greater flexibility

› Greater adaptability to

»challenging« products

The choice is yours!

INLINE OR OFFLINE CLASSIFYING?

1

23

4

5

6

7

4

5

6

7

3

1

2

Dosing channel

Whirling motion screw cooler

Mill

Classifier

Filter

Screening machine (optional)

3D printer (customer)

HOSOKAWA MICRON POWDERS GMBH

Postal address: P.O. Box 92 02 6251152 CologneGermany

Delivery address:Welserstrasse 951149 CologneGermany

Phone: +49 2203 308-0Fax: +49 2203 308-148E-mail: info@powders.hosokawa.com

www.hosokawamicron.de

Process technologies for tomorrow.

Subject to change without notice. All information in this broschure is purely informative and non-binding. Our quotations are authoritative with regard to orders.

© Hosokawa Alpine 2018. Printed in Germany.

0177-EN-2018-11-Additive_Manufacturing_Polymer

HOSOKAWA ALPINE AKTIENGESELLSCHAFT

Peter-Doerfler-Strasse 13 – 25 86199 Augsburg Germany

Phone: +49 821 5906-0 Fax: +49 821 5906-101 E-mail: mail@alpine.hosokawa.com

www.hosokawa-alpine.com

CHEMICAL DIVISION

Phone: +49 821 5906- 238 Fax: +49 821 5906- 438 E-mail: chemical@alpine.hosokawa.com

Still have any questions?

We will be pleased to answer them!