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?
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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: [email protected]
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: [email protected]
www.hosokawa-alpine.com
CHEMICAL DIVISION
Phone: +49 821 5906- 238 Fax: +49 821 5906- 438 E-mail: [email protected]
Still have any questions?
We will be pleased to answer them!