Retsch DM200 Operating Instructions Manual
Operating Instructions for the
Disk Mill Model DM200
Retsch GmbH, 42781 Haan, Retsch-Allee 1-5, Germany, 2/8/2012 0002
Information on these Operating
Instructions
The present operating instructions for the laboratory
model DM200 disk mill provides you with all of the
necessary information on the areas specified in the
table of contents.
It is an instruction for the target group(s) defined for
each of these areas in the safe and intended use of
the DM200. The prerequisite of each of the target
group(s) being able to use it safely and as intended is
having a knowledge of the relevant sections.
The present technical documentation is a reference
work and instructions for learning and each of the sections is closed in and of itself.
These operating instructions are not instructions for
repair. If repairs should be necessary, please consult
your vendor or get in contact with Retsch GmbH directly.
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Information on these Operating Instructions
.................................................................... 2
Safety .......................................................... 4
Safety Information ..................................... 4
Warning Signs ........................................... 4
Repairs ..................................................... 5
Confirmation ............................................. 5
Technical Data ............................................. 6
Use as intended ......................................... 6
Functional Description ................................ 6
Protective Equipment ................................. 7
Drive ........................................................ 7
Motor Output ............................................ 7
Rated Voltages .......................................... 7
Rpm's ...................................................... 7
Protective Types ........................................ 7
Emissions ................................................. 8
Machine Dimensions ................................... 8
Floor Space Required ................................. 8
Transportation and Installation ................... 9
Packaging ................................................. 9
Transportation ........................................... 9
Intermediate Storage ................................. 9
The Parameters for the Place of Installation .. 10
Installation................................................ 10
Electrical Connection .................................. 10
Operation ..................................................... 11
The Operating Elements and Operation ......... 11
Adjusting the Gap Width ............................. 12
Starting the Machine .................................. 12
Feeding the Material to be Crushed .............. 12
Changing the direction of
rotation, replacing the milling disks .............. 13
General Information .................................... 15
Accessories ............................................... 15
Cleaning ................................................... 15
Service ..................................................... 15
Necessary Safety Tests............................... 15
Copyright .................................................. 15
Modifications ............................................. 15
Safety Regulations (Table) .......................... 16
Appendix .............................. following pages
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Safety
We will not be liable for any claims to compensation
whatsoever for property damage or personal injury
that were caused by not observing the following safety
information.
!
personal injury
property damage
The DM200 laboratory disk mill is a highly modern
high-performance product from Retsch GmbH and is
state-of-the-art. If the machine is used as intended
and if the user has a knowledge of the technical
documentation here, it is completely safe when operated.
Safety Information
You as the operator have to ensure that the persons
entrusted with working at the DM200:
have taken notice of and understood all of the
regulations in the area of safety,
know all of the instructions for use and regula-
tions of the target group relevant for them before commencing work,
have access to the technical documentation of
this machine at any time and without any problems.
Before work is commenced on the DM200, ensure
that new personnel has been made familiar with its
safe and intended use either by having a competent
person introduce it to them orally and / or based upon
the present technical documentation.
Improper operation may lead to personal injury, property damage or injury. You are responsible for your
own safety and that of your employees.
Ensure that no unauthorised persons have access to
the DM200 laboratory disk mill.
For your own protection, have your employees confirm
that they have been instructed in the operation of the
DM200. You will find the draft of the appropriate form
after the section on safety.
Warning Signs
we give warnings with the following signs:
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Repairs
The Retsch agency in your country
your vendor
Retsch GmbH directly
These operating instructions are not instructions for
repair. For your own safety, repairs may only be done
by Retsch GmbH or an authorised agency or service
technicians.
In this case, please notify:
your service address:
Confirmation
I have taken notice of the foreword and the section on
safety.
_______________________________________
________
the signature of the operators
_______________________________________
________
the signature of the service technician
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Technical Data
!
The DM200 is not designed to be explosion protected and therefore it is not suited to milling explosive self-igniting or fire-promoting substances.
!
If oxidised materials are milled such as metals,
organic materials, wood, plastics, etc., there is the
danger of self-ignition (dust explosion) if the proportion of fines exceeds a certain percentage. It is
necessary to observe the appropriate safety
guidelines when materials such as these are
crushed.
Do not modify the machine and only use the spare
parts and accessories approved by Retsch.
Otherwise the conformity with European directives declared by Retsch shall be rendered
invalid.
Furthermore, this leads to a loss of all warranty claims.
The material sample is crushed by two milling
discs coarsely meshed on the inside working
against one another in a milling space sealed
against dust from the outside. One of these is
driven by a powerful and slow moving gear motor.
The material to be milled is filled into the centre
of the stationary milling disc through a closable
funnel and it escapes from the gap between the
two disks after being crushed by compressing and
shearing force. The width of the gap can be adjusted and controlled from outside and determines
the mean granulation of the material to be milled.
machine model designation: DM200
Use as intended
The DM200 laboratory disk mill is suited for finely
milling soft to hard materials (up to 8 Mohs) in sets or
continuously from the fields of mining and metallurgy,
rocks and earth, the glass industry or soil research.
Our applications laboratory would be glad to give you
further information upon request.
The DM200 is designed for quantities from 20 to approximately 150 Kg/h depending upon the setting of
the discharge gap and the piled density and crushing
behaviour of the sample. The feed size may not exceed an edge length of a maximum of 20 mm.
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Functional Description
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