Fritsch PULVERISETTE 16 User manual

Operating Instructions
Cross Beater Mill
“pulverisette 16”

Version 12/2000 Index 001 Inspected and Approved
Fritsch GmbH
Laborgerätebau
Industriestrasse 8
D - 55743 Idar-Oberstein
Phone: [phone]
Fax [phone]
Email: [email protected]
Internet: http://www.fritsch.de
Device number 16.300x.00
Applies as of serial number 101
Fritsch GmbH, Laborgerätebau was certified by TÜV-
Zertifizierungsgemeinschaft e.V. on November 21, 2003.
It was verified through an audit that Fritsch GmbH satisfies the require-
ments of DIN EN ISO 9001:2000.
The enclosed conformity declaration specifies the directives satisfied by
the Cross Beater Mill “pulverisette 16” in order to qualify for the CE mark.

pulverisette 16
Table of contents
Page
1General/Introduction................................................................1
1.1 Notes about the operating instructions.................................................1
1.2 Explanation of the symbols used on the device and in the operating
instructions............................................................................................2
1.3 Brief description of the device ..............................................................3
1.3.1 Fields of application.........................................................................................3
1.3.2 Method of operation.........................................................................................3
1.4 Technical data......................................................................................4
1.5 Materials and composition....................................................................5
2Operating safety.......................................................................6
2.1 General safety instructions...................................................................6
2.2 Operators..............................................................................................6
2.3 Protective devices ................................................................................7
2.4 Danger points.......................................................................................7
3Installation................................................................................8
3.1 Unpacking.............................................................................................8
3.2 Transport ..............................................................................................8
3.3 Setup ....................................................................................................8
3.4 Setup on a laboratory table ..................................................................8
3.5 Fastening of the “pulverisette 16” to the universal support..................9
3.6 Electrical connection...........................................................................10
4Working with the “pulverisette 16” ......................................11
4.1 Operating elements and operation.....................................................11
4.2 Operating elements and their function ...............................................12
4.3 Opening and closing the mill housing ................................................13
4.4 Inserting the bottom sieve ..................................................................14
4.5 Filter hose and collecting vessel ........................................................14
4.6 Adding material for grinding ...............................................................14
4.7 Readjusting the impact gap................................................................15
5Cleaning..................................................................................16
6Maintenance ...........................................................................17
7Required inspections.............................................................17
8Warranty..................................................................................18

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1 General/Introduction
1.1 Notes about the operating instructions
•Study the operating instructions carefully.
•The cross beater mill “pulverisette 16” is referred to below as
the cross beater mill.
•All operators must be familiar with the contents of the operat-
ing instructions.
•Please follow the notes for your safety.
•The cross beater mill was designed from a perspective of user
safety; however, some residual dangers could not be elimi-
nated. Follow the advice in these instructions to avoid risks to
users.
•The symbols in the right hand margin highlight the risks de-
scribed in the text.
•Symbols on the device warn about possible dangers or refer
to these operating instructions. The symbol in the right page
margin (triangle with an exclamation point) indicates general
dangers and refers to the operating instructions.
•These operating instructions do not constitute a complete
technical description. They describe only the details required
for safe operation and maintenance for usage under normal
conditions.
•The copyright to these technical documents is the property of
Fritsch GmbH, Laborgerätebau.
•These operating instructions are not to be reprinted or copied
without the express approval of Fritsch GmbH, Laborgeräte-
bau.

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1.2 Explanation of the symbols used on the device
and in the operating instructions
Attention!
Warning against danger spot
Observe operating instructions
Attention! Mains voltage
Attention! Hazard of explosion
Wear ear protection!
Wear protective gloves!
Spraying with water forbidden!
Do not step below lifted load!

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1.3 Brief description of the device
1.3.1 Fields of application
The cross beater mill serves primarily for preliminary and fine comminu-
tion of medium-hard, brittle materials up to Mohs hardness of 6. Thanks
to a large selection of accessories, the cross beater mill is a device with
wide-ranging fields of application primarily in the areas of chemicals and
ceramics, in mining and metallurgy as well as in the preparation of soil
samples, etc. in the laboratory and in industry.
The achievable final fineness depends on the hole width of the
bottom sieve and the grinding properties of the material to be
ground. Under good conditions, fineness levels < 100 µm can
be achieved.
Typical applications for soft materials:
Needles, leaves, grain, resins, cellulose, chemicals, dried fruits, peat,
seeds, dried plants
Typical applications for medium-hard materials:
Animal feed, salts, pellets, coal, porcelain clay, spices, gypsum, drugs,
potash, tablets, slag, minerals, ash, stone and earth (bauxite, limestone,
dried clay, etc.), synthetic resins, pyrite, cement clinker, coke, ores, re-
fractory materials.
1.3.2 Method of operation
The comminution in the cross beater mill takes place through
impacting, colliding and shearing effects. After introduction into
the filling funnel, the material enters the grinding chamber,
where the comminution process occurs between the cross
beater, grinding insert and bottom sieve.
As soon as the material has reached the corresponding final
fineness, it passes through the bottom sieve into the collecting
vessel.
A back draft of the air flow generated by the rotating cross
beater is prevented and an acceleration of the material
throughput is partially achieved with the use of a textile filter
hose between the cross beater mill and the collecting vessel.
This ensures a gentle grinding process.

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1.4 Technical data
Dimensions:
“pulverisette 16” approx. 560x420x445mm (height x width x
depth)
“pulverisette 16” with base frame approx. 1183x560x700mm
(height x width x depth)
Weight:
“pulverisette 16” net approx. 36 kg
with base frame net approx. 58 kg
Operating noise
Noise measurement according to DIN 45635-31-01-KL3
The noise values are also influenced by the properties of
the material being ground.
Example:
Noise level LWA = 95dB(A)
Workplace emissions value LpAeq = 86dB(A)
Input material: Quartz pebbles, grain size < 3 mm
Filling level of the grinding chamber: Input quantity until rated mo-
tor power was reached
Drive:
1 and 3 phase alternating current motor with brake
Rotation speed:
2850 rpm
Rated power:
1100 watts
Input grain size:
Max. 20 mm
Collecting vessel volume:
5,000 ml or 30,000 ml
Protection class:
IP 54

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1.5 Materials and composition
Collecting vessel 5l and bottom sieves
of stainless steel
Material no. 1.4301
Short name X 5 CrNi 18 9
Composition Fe 77.325 %
Cr 18.000 %
Ni 02.500 %
Mn 02.000 %
Si 01.000 %
C 00.070 %
P 00.045 %
S 00.030 %
Filling funnel and housing of aluminium
Material no. 239
Short name G-Al Si 10 Mg
Composition Al 87.300 %
Si 11.000 %
Fe 00.500 %
Mg 00.500 %
Mn 00.400 %
Ti 00.150 %
Zn 00.100 %
Cu 00.050 %
Grinding insert of cast iron
Short name GG-20
Composition Fe 93.600 %
C 03.650 %
Si 01.800 %
Mn 00.550 %
P 00.300 %
S 00.100 %
Cross beater of tempered cast iron
Material no. 0.8083
Short name GTW-38
Composition Fe 95.465 %
C 03.250 %
Si 00.650 %
Mn 00.400 %
P 00.055 %
S 00.180 %
Impact plates of special steel
Material no. 1.2080
Short name X 210 Cr 12
Composition Fe 84.890 %
Cr 12.000 %
C 02.200 %
Mn 00.450 %
Si 00.400 %
P
S00.030 00.030 % %
The composition percentages listed above represent average values.

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2 Operating safety
2.1 General safety instructions
•Study the operating instructions carefully.
•All operators must be familiar with the contents of the operat-
ing instructions.
For this purpose, always keep the operating instructions within
easy reach.
•Do not remove the instruction labels.
•Do not disable safety devices.
•Independent conversions of the device negate the conformity
with European directives declared by Fritsch and void the war-
ranty.
•The cross beater mill is intended exclusively for use as speci-
fied in the section 1.3.1 .
Any other use is considered improper; the manufacturer ac-
cepts no liability for damages resulting from improper use.
•In addition to the operating instructions, observe and instruct
adherence to all generally applicable statutory and otherwise
binding regulations on accident prevention and environmental
protection.
•If a noise level of 85 dB(A) is reached or exceeded, hearing
protection should also be worn to prevent hearing damage.
•Use original accessories and spare parts only. Failure to ad-
here to this may jeopardize the protection of the machine.
•Do not continue using damaged accessories.
•The occupational exposure limits of the valid safety instruc-
tions must be observed and if necessary, ventilation should be
provided or the machine should be operated under a hood.
•During comminution of oxidisable substances (e.g. metals or
coal), there exists a danger of self-ignition (dust explosion) if
the portion of fine material exceeds a specific percentage.
•The cross beater mill is not designed with explosion protection
and is not suitable for grinding of explosive materials.
•These operating instructions do not contain any repair instruc-
tions. Repairs may only be performed by Fritsch GmbH or
authorised service technicians.
2.2 Operators
•The cross beater mill may only be operated by authorised
persons and maintained and repaired by trained experts.
•People who are under the influence of health impairments,
medications, drugs, alcohol or excess fatigue may not oper-
ate the cross beater mill.

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2.3 Protective devices
•Protective devices should be used for the intended purpose
and must not be made unserviceable or removed.
•All protective devices must be regularly inspected for com-
pleteness and proper function. See sections 6Maintenance
and 7Required inspections.
2.4 Danger points
Process Action Dangers
Safety Damages and injuries resulting from failure to
follow the safety instructions All forms of claims for damages are excluded
Packaging Please keep the packaging for the duration of
the warranty period A complaint and return in insufficient packag- ing can put your warranty claims at risk
Transport Do not jolt, shake or throw the “pulverisette 16”
during transport Electronic and mechanical components can be damaged
Temperature fluctuations In event of temperature fluctuations, protect
the “pulverisette 16” from condensation Electronic components can be damaged
Scope of delivery In event of incomplete delivery and/or transport
damages, you must immediately notify the
shipper and Fritsch GmbH (within 24h).
Complaints registered later than this can no
longer be accepted under some circum-
stances.
Ambient temperature Falling below 5 °C
Exceeding 40 °C Electronic and mechanical components can be damaged
Performance data changes to an unknown
extent.
Humidity Exceeding of 80 % at
temperatures up to 31 °C Electronic and mechanical components can be damaged
Performance data changes to an unknown
extent.
Electrical connection Power network does not match the values on
the type plate Electronic components can be damaged
Before starting up the device for the first time,
the rotation direction must be checked; see the
directional arrow on the motor.
With an incorrect rotation direction, the grind-
ing performance is insufficient and mechani-
cal components may be damaged.
Opening and closing of the mill
housing Only close the door when the contact surfaces
are absolutely free of grinding material and
other contaminants.
Mechanical components and the seal can be
damaged.
Do not open “pulverisette 16” while the motor
is running. In the grinding of toxic or otherwise harmful substances, there is a risk of inhalation of
dusts that are harmful to health.
Do not open the “pulverisette 16” and release
the motor brake at the same time. Risk of injury from the unbraked cross
beater.
Adding material for grinding Add material for grinding slowly and continu-
ously into the filling funnel. Adding too large an amount can bring the “pulverisette 16” to a stop and could damage
mechanical components.
During grinding, dust-sized grinding material
can escape from the filling funnel. Use a vac-
uum hood when working with toxic or otherwise
harmful materials.
Danger of inhalation of harmful dusts.
Some grinding materials form explosive mix-
tures in air.
Check the material properties of your grinding
material.
Risk of explosion.
Cleaning Pull the power plug before every cleaning. Life-threatening risk of electric shock
Do not clean with flowing water Life-threatening risk of electric shock

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3 Installation
3.1 Unpacking
•Pull out the nails with which the shell is fastened to the trans-
port pallet. The shell is the wooden box that is situated over
the transport pallet.
•Lift the shell off the transport pallet.
•Compare the contents of the delivery with your order.
3.2 Transport
•Transport with a forklift or elevating truck while on the trans-
port pallet.
•Use the ring bolt H for transport of the cross beater mill.
Do not stand under the transport pallet!
3.3 Setup
•Lift the cross beater mill off the transport pallet.
Observe the accident prevention guidelines VBG 8, VBG 9a
and VBG 9!
•Set up the cross beater mill horizontally on a level and stable
indoor surface. It is not necessary to fasten the device in
place.
Operation of the cross beater mill while it is on the transport
pallet is not permitted!
•Ensure easy access to the cross beater mill.
•The ambient temperature must range from 5–40 °C.
•The max. humidity up to 31 °C is 80 % and declines linearly to
50 % at 40 °C.
•The minimum elevation for setup and use of the device is
200 m below sea level.
3.4 Setup on a laboratory table
You can also mount the cross beater mill onto your laboratory table.
- Measure the laboratory table thickness.
- Use screws with a max. diameter of 8 mm and a length of the
laboratory table thickness plus 25 mm.
- Place the cross beater mill including collecting vessel on the table.
- Mark the hole locations onto the table using the existing holes on
the motor of the cross beater mill.
The spacing from the holes to the front edge of the table must allow
sufficient space for installation and removal of the collecting vessel
and the filter hose.

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3.5 Fastening of the “pulverisette 16” to the uni-
versal support
Lift the mill onto the support
with 2 people.
Important!!! Secure the device
against tipping until it is com-
pletely screwed in place, since
the mill’s centre of gravity al-
lows it to tip forward.
Then fasten the mill to the in-
stallation plate with the supplied
fastening materials.
Mounting holes
“pulverisette 16”
Attention!
Warning against danger spot
Warning against hand injury

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3.6 Electrical connection
The electrical connection may only be created by a qualified electrician.
The voltage and frequency of the cross beater mill can be found on the
type plate.
Make certain that the values match the existing power network.
Connect the cross beater mill to the power network using the supplied
connector cable.
The supplied power cable does not have a plug, since the type of plug
depends on the setup location and the respective national regulations.
External fuse protection must be provided during connection of the po-
wer cable to the mains in accordance with the regulations of the setup
location.

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4 Working with the “pulverisette 16”
4.1 Operating elements and operation
Graphical view of the operating elements:

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4.2 Operating elements and their function
Item Element Symbol Function
A Main switch
with ON/OFF
button
0I
Disconnects and connects the “pulverisette 16” from/to the
mains
Ipressed = “pulverisette 16” is switched on
0pressed = “pulverisette 16” is switched off
A1 Power switch
with knob
Disconnects and connects the “pulverisette 16” from/to the
mains
ON = “pulverisette 16” is switched on
OFF = “pulverisette 16” is switched off
B1 Door seal hand
wheel only with
PULVERISETTE
16 comfort
Opens and closes the door of the “pulverisette 16” comfort,
places tension on the door seal
Pressed and rotated right = closes the door
Pressed and rotated left = opens the door
D Filling funnel at
door
Receives the grinding material with a maximum grain size of
20 mm; not intended for storage of a grinding material re-
serve;
Reliably prevents backspray of the grinding material.
E Filter hose w/o illustration Prevents a back draft from the air pressure generated by the
rotating cross beater, thereby accelerating the material
throughput.
F Collecting vessel
5 l w/o illustration Receives the ground material.
G Release level for
the motor brake
Pushing back releases the motor brake, allowing manual
turning of the cross beater for cleaning.
H Transport bolt
Prevents damage to mechanical and electrical components
during transport.

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4.3 Opening and closing the mill housing
Only open the “pulverisette 16” while it is switched off.
- Press the button 0 on the power switch Aor turn to the OFF setting
(see image)
- Press the hand wheel B1 and turn to the left
- The hand wheel snaps into the final position
- Close in reverse order
0I
Important:
Only close the door when the contact surfaces are absolutely free
of grinding material and other contaminants.
Mechanical components and the seal can be damaged.
Do not open “pulverisette 16” while the motor is running.
In the grinding of toxic or otherwise harmful substances, there is a
risk of inhalation of dusts that are harmful to health.
Do not open the “pulverisette 16” and release the motor brake at
the same time.
Risk of injury from the unbraked cross beater.

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4.4 Inserting the bottom sieve
Bottom sieves BS of stainless steel with Conidur or round perforation
are available as accessories. (See image)
Conidur 0.12/0.2/0.25/0.5/0.75/1/1.5/2 mm
Round hole 3/4/5/6/8/10 mm
•Stop the “pulverisette 16”
•Open the mill housing
•Insert the bottom sieve BS
•Set the impact gap between the grinding insert and cross beater
to 1mm, with a bottom sieve to cross beater spacing of not
< 1 mm.
•Close mill housing
•Make certain that a collecting vessel is in place.
•Start the “pulverisette 16”
Important:
Never operate the device without a bottom sieve inserted! Risk of injury
through possible insertion of fingers from below!
4.5 Filter hose and collecting vessel
Through the use of a textile filter hose between the “pulverisette 16”
and the collecting vessel, the airflow generated by the rotating cross
beater is guided away and a back draft is prevented. In addition, it ac-
celerates the material throughput and ensures a gentle grinding proc-
ess.
* Slide filter hose E over the flange, and at the same time hold
the clamping clip at an angle
* Clamp on seal E1
* Hang in the collecting vessel F
* Clamp on seals F1
If the collecting vessel is installed without filter hose, you can expect
dust to escape from the filling funnel D.
4.6 Adding material for grinding
The maximum grain size should not exceed 20 mm.
* Add grinding material slowly into the filling funnel D(see im-
age)
A rebound blocker in the filling funnel prevents the grinding material from
being thrown back out.

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4.7 Readjusting the impact gap
From time to time, the gap between the grinding insert and the impact
plates of the cross beater should be inspected. (See image)
* Pull the power plug
* Open the mill housing
* Check the gap between the grinding insert ME and the impact
plate PP with a feeler gauge = desired value ~ 1 mm, whereby
the gap to the bottom sieve may not be < 1 mm
Adjust the gap between the grinding insert and impact plate, if neces-
sary.
* Screw the impact plates tight with a hex key M5

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5 Cleaning
The cross beater mill can be cleaned while switched off using brushes,
small brushes and possibly vacuumed with an industrial vacuum cleaner
or blown off with compressed air.
Do not allow any liquids to flow into the device.
To clean the grinding chamber in the cross beater mill, the motor brake
can be released with lever G. The cross beater is easy to turn, making
cleaning simpler.
The protection class of the cross beater mill is IP54

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6 Maintenance
•Before the start of maintenance work, pull the power
plug and secure the device against accidental reactiva-
tion!
•Warn about maintenance work with a sign.
•Only have maintenance work performed by experts.
•Put safety devices back into operation after maintenance
and repair work.
The cross beater mill requires almost entirely no maintenance.
From time to time, the gap between the grinding insert and the impact
plates of the cross beater should be inspected.
Procedure:
- Pull the power plug
- Open the mill housing
- Check the gap between the grinding insert GI and the impact
plate IP with a feeler gauge = desired value 1 mm, whereby
the gap to the bottom sieve may not be < 1 mm
- Adjust the gap between the grinding insert and impact plate, if
necessary.
7 Required inspections
•Before the start of repair work, pull the power plug and
secure the device against accidental reactivation!
•Warn about repair work with a sign.
•Put safety devices back into operation after maintenance
and repair work.
•Only have repair work performed by experts.
The limit switch and the motor brake should be tested for proper
function every six months.
- Limit switch on the door hinge on the left
oWith an opening gap of max. 3 mm, the limit switch must
switch off the motor
- Limit switch on quick latch on the right
oUpon a rotation of the hand wheel of max. 45°, the motor
brake must be activated
- Motor brake
oStart device
oStop device
oIf the braking time exceeds 0.5 seconds, contact a ser-
vice technician