Fritsch Vibrating Cup Mill PULVERISETTE 9 Operating instructions

Brand: Fritsch

Model: Vibrating Cup Mill PULVERISETTE 9

Type: Operating instructions

FRITSCH

ZERKLEINERN PARTIKELMESSEN TEILEN MILLING PARTICLE SIZING DIVIDING ZERKLEINERN PARTIKELMESSEN TEILEN MILLING PARTICLE SIZING DIVIDING ZERKLEINERN PARTIKELMESSEN TEILEN

Instruction manual

Laboratory Vibrating

Cup Mill

„ pulverisette 9 “

Edition 11/1995 Index 001

FRITSCH

ZERKLEINERN PARTIKELMESSEN TEILEN MILLING PARTICLE SIZING DIVIDING ZERKLEINERN PARTIKELMESSEN TEILEN MILLING PARTICLE SIZING DIVIDING ZERKLEINERN PARTIKELMESSEN TEILEN

Fritsch GmbH

Manufacturers of Laboratory Instruments

Industriestrasse 8

D - 55743 Idar-Oberstein

Phone: *6784/ 70-0

Fax: *6784/ 70-11

E-Mail: [email protected]

Internet: http://www.fritsch.de

Instrument number Model I 09.0030.00 / 09.0050.00

Model II 09.2030.00 / 09.2020.00

applies as of serial number 458

Fritsch GmbH, Laborgerätebau has been certificated by the TÜV-

Zertifizierungsgemeinschaft e.V. on June 24, 1994.

An audit certificated the accordance of the Fritsch GmbH to the

DIN EN ISO 9001.

The enclosed declaration of conformity calls the directives which

the „pulverisette 9“ corresponds to. This permitts us to mark the

instrument with the CE-Sign.

pulverisette 9

FRITSCH

ZERKLEINERN PARTIKELMESSEN TEILEN MILLING PARTICLE SIZING DIVIDING ZERKLEINERN PARTIKELMESSEN TEILEN MILLING PARTICLE SIZING DIVIDING ZERKLEINERN PARTIKELMESSEN TEILEN

Table of contents page

1 Safety Symbols, Application and Use ........................................1

1.1 Indication of general dangers: ................................................................... 1

2 Safety Instructions .......................................................................2

3 Unpacking .....................................................................................3

4 Operating Instructions .................................................................4

5 Method of Operation.....................................................................4

6 Operating Safety ...........................................................................5

7 Erecting the Laboratory Vibrating Cup Mill................................6

8 Electrical Connection ...................................................................6

8.1 Checking for correspondence of voltage and current ............................... 6

8.2 Motor protecting switch.............................................................................. 6

9 Removing the Shipping Brace.....................................................7

10 Setting the Clamping Device .......................................................7

11 Grinding Sets: ...............................................................................8

11.1 Utilizing the grinding sets:.......................................................................... 8

12 Reducing the Size of Grinding Material......................................9

12.1 Filling the milling vessels ........................................................................... 9

12.2 Grinding ..................................................................................................... 9

12.3 Final fineness and grinding time.............................................................. 10

13 Cleaning.......................................................................................10

14 Warranty ......................................................................................10

15 Maintenance and Servicing .......................................................11

15.1 Using the grinding set.............................................................................. 12

15.2 Setting the contact pressure.................................................................... 12

15.3 Checks after each grinding process:....................................................... 12

15.4 Weekly checks and maintenance............................................................ 13

15.5 Semi-annual checks and maintenance ................................................... 13

11.6 Emergency release of protection switch interlock................................................ 13

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ZERKLEINERN PARTIKELMESSEN TEILEN MILLING PARTICLE SIZING DIVIDING ZERKLEINERN PARTIKELMESSEN TEILEN MILLING PARTICLE SIZING DIVIDING ZERKLEINERN PARTIKELMESSEN TEILEN

1 Safety Symbols, Application and Use

1.1 Indication of general dangers:

Combustible

materials

Materials

hazardous

to health

Caution Warning

symbol of

hazards

Danger,

electric

voltage

Wear eye

protection

Attention: high temperature 

possibly the grinding set can get very hot during the grinding

process! 

high temperature can disturb the grinding set! 

Use of Laboratory Vibrating Cup Mill:

These operating instructions describe the applications and use of

the Laboratory Vibrating Cup Mill.

No other use is permitted!

Make no modifications to the Laboratory Vibrating Cup Mill with-

out first consulting FRITSCH and receiving written approval.

If modifications are made without approval, the CE conformity

confirmed by FRITSCH ceases to apply.

Caution when handling combustible or toxic materials!

Compliance with the relevant safety regulations (MAC values) is

mandatory if material to be ground is hazardous to health or dan-

gerous. Where applicable, place Laboratory Vibrating Cup Mill in

a well-ventilated safety zone.

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2 Safety Instructions

x Do not remove information signs!

x Maintenance must be performed by properly briefed personnel!

x Put covers back on following maintenance!

x Do not permanently deactivate safety devices!

x Check safety device regularly!

x Only properly instructed personnel are to work on machine!

x Do not open Laboratory Vibrating Cup Mill until it has come to a

complete stop!

x Do not start Laboratory Vibrating Cup Mill until grinding set (grind-

ing vessel) mounted and fixed in place!

x Do not put hands into mill while it is running!

x Do not work without safety glasses!

x Vibrating cup mill must be set up indoors.

x Erect on a solid floor.

x Ambient temperature 0 to 40°Cq.

x Noise level: 81 dB.

x Dimensions: 940 x 760 x 650 mm (H x W x D).

x Weight (net): approx. 310 kg

xDanger due to electric voltage:

x Located on the mill are controlgears with a voltage in the low volt-

age range of 230 or 400 Vrms.

x Risk of pinching/crushing exists with hood!

x Risk of pinching/crushing exists with fastening clip!

x Read and comply with the operating instructions!

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3 Unpacking

x Caution: Vibrating Cup Mill weighs 310 kg.

x Compare your order with the contents of the crate!

Pull out the staples with a pry bar (or pliers).

Lift off the top of the crate.

The vibrating cup mill is fastened on the pallet with 4 square tim-

bers.

You can pull out the nails fastening the square timbers with a pry

bar (or pliers).

The pallet is so stable that you could even leave the vibrating cup

mill on it during operation.

Use a pallet truck to move the pallet:

x Use a crane or fork lift to lift the vibrating cup mill

off the pallet.

Attach sturdy lifting tackle to the 4 eyebolts screwed into

the sides.

If you have to use cable, make certain that they are se-

curely fastened to eyebolts, crane hook or forks of fork

lift.

Pull the free ends through the eyebolts at the sides of the vibrat-

ing cup mill and tie a knot.

The control box to operate the vibrating cup mill is enclosed, not

attached. To attach the vibrating cup mill, bolt the side bracket on

the right-hand side with the 4 bolts enclosed. Plug the cable con-

nector for the vibrating cup mill into the plug-and-socket connec-

tion on the right-hand side.

x Do not switch on the vibrating cup mill until the shipping brace has

been removed.

x Do not switch on the vibrating cup mill until the grinding vessel

has been installed.

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4 Operating Instructions

The laboratory Vibrating Cup Mill "pulverisette 9" is employed for

rapid intermittent dry or wet fine grinding of brittle to very hard

material samples, e.g. from the fields mining (coal, ore, minerals),

metallurgy (slag, cast samples), the ceramics industry, the ce-

ment and building materials industry, agriculture and forestry.

The quantity of material to be crushed depends on the model of

grinding set used; the maximums are 50, 100 and 250 ml. The

initial sample size also depends on the model and size of the

grinding set and is max. 7 and 12 mm.

5 Method of Operation

The "pulverisette 9" operates on the vibration-grinding principle,

i.e. The grinding set is placed on a vibrating disk and the grinding

elements in it (disk and rings) are accelerated by centrifugal

force and grind the sample due to both impact and friction.

The grinding sets (made of hardened steel, tungsten carbide or

agate) are sealed with an inlaid gasket, eliminating losses during

wet or dry grinding.

With model I, the powerful drive motor has two different rotational

speeds (750 and 1,000 RPM), making it possible to adapt the

grinding effect to practical requirements. The high speed is auto-

matically blocked when the agate grinding set is used, as this is

sensitive to impact.

Model II achieves a rotational speed of 1,500 RPM and is particu-

larly suitable for utilization with sets made of tungsten carbide or

hardened steel in the 100 or 250 ml sizes. In many cases with

this model, grinding yield the same results in a relatively short

time. Utilization of this model is particularly suitable if an ex-

tremely hard material is to be ground in a very short time. The

agate grinding set is not to be used on model II.

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6 Operating Safety

The Laboratory Vibrating Cup Mill has an extensive safety sys-

tem:

1. During operation, a protection switch with safety interlock

monitors the start-up of the Laboratory Vibrating Cup Mill after

the mill is switched off and the cover is open.

x The mill is locked during operation.

x The Laboratory Vibrating Cup Mill won't start when the

hood is open.

x The hood cannot be opened until the mill is at a standstill

and the "Hood" button has been pressed.

x The cup mill cannot be opened once it is deenergized (it

can be opened only via emergency release of interlock).

2. The Laboratory Vibrating Cup Mill features the correct motor

protecting switch for the mains voltage (listed on nameplate).

3. In the event of an overload or a faulty motor, the protecting

switch automatically interrupts the supply of electricity. The

mill can be switched back on once the malfunction has been

eliminated and the motor protecting switch has cooled down.

4. Press the Start button to switch on the Laboratory Vibrating

Cup Mill.

x Do not switch on until the shipping block is removed.

x Do not switch on until grinding set is installed.

5. Press the Stop button to switch off the Laboratory Vibrating

Cup Mill.

6. In the event of a power failure during operation the Laborato-

ry Vibrating Cup Mill comes to a stop in about 3 seconds.

7. When the power returns, the Laboratory Vibrating Cup Mill

does not start.

x Vibrating cup mill is secured against restart.

x Press the Start button: The Laboratory Vibrating Cup Mill

starts.

_____________

If the Laboratory Vibrating Cup Mill is "out of order" for a pro-

tracted

x Night cut-off: Separate Laboratory Vibrating Cup Mill

from mains.

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7 Erecting the Laboratory Vibrating Cup

Mill

Place the Laboratory Vibrating Cup Mill on a flat, stable base. No

fastening is required. You can also leave the Laboratory Vibrating

Cup Mill on the stable shipping pallet when you start the mill.

8 Electrical Connection

8.1 Checking for correspondence of voltage and

current

Before connecting the Laboratory Vibrating Cup Mill, make cer-

tain that the voltage and current values specified on the name-

plate correspond to the those of your local electrical supply:

Model P9/I

x 3~ 230 V ± 10%; 50 to 60 Hz with protective conductor

950 watt power consumption under high stress

(markedly lower in normal use),

fuse 16 A

x 3~ 400 V ± 10%; 50 to 60 Hz with PEN conductor and pro-

tective conductor

950 watt power consumption under high stress

(markedly lower in normal use),

fuse 16 A

Model P9/II

x 3~ 230 V ± 10%; 50 to 60 Hz with protective conductor

2900 watt power consumption under high load

(markedly lower in normal use),

230 / 400 volts,

fuse 16 A

x 3~ 400 V ± 10%; 50 to 60 Hz with PEN conductor and pro-

tective conductor

2900 watt power consumption under high stress

(markedly lower in normal use),

fuse 16 A

Pole-changing model I drive motors are permanently set to the

specified voltages at the factory and cannot be changed subse-

quently.

8.2 Motor protecting switch

The motor protecting switch in the breaker enclosure interrupts

the flow of power when the motor is overloaded, bringing the mill

to a standstill.

In the case of model I, the motor protecting switch is ready for

operation a short time thereafter and the mill can be switched

back on when the malfunction is remedied.

To restart model II after the malfunction is remedied, you will

have to remove the front panel of the break enclosure and press

the blue "RESET" button (contactor). You can restart the mill af-

ter you close the front panel.

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9 Removing the Shipping Brace

To remove the shipping brace:

1. Open the hood:

x Turn the master switch on.

x Press the button "Open the

hood".

2. Open the grinding vessel clamp-

ing device and remove the piece

of wood clamped in it.

3. Remove the two M 10 locking

screws on the vibrating plate.

10 Setting the Clamping Device

Adapt the clamping device to your grinding set:

1. Insert the clamping set:

Insert the grinding device

(grinding set) into the receiver

on the vibrating plate such that

the two surfaces milled on the

sides fit into the circular seg-

ments, locking the clamping

lever.

Attention: The entire contact surface of grinding set must touch

the receiver ring.

2. Setting the contact pressure:

The contact pressure is

adjusted with the aid of

spacer rings.

Loosely place the fasten-

ing clip with rubber buffer

loosely on the set.

Place the clamping head

such that the inside ring

fits into the semicircular

recess of the fastening

clip.

The clamping lever is then almost vertical. If the clamping lever is

slanted more than about 15° towards the clip, unscrew the rubber

buffer (16) and place further spacer rings under the rubber buffer

before bolting it back on.

Push the clamping lever down hard until it snaps down by itself in

the lower area - when you have pressed the clamping head over

the bent lever closure.

If it is extremely difficult to push the clamping lever down and you

cannot hear it snap in, remove one or two of the spacer rings un-

der the rubber buffer.

safety screws

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11 Grinding Sets:

You can employ the following grinding vessels:

Useful contents of

grinding vessel

50 ml 100 ml 250 ml

Grinding element 1 washer 1 washer, 1 ring 1 washer, 2 rings

Order numbers

Hardened steel 48.1050.00 48.1100.00 48.1250.00

Reducing Ring 48.0020.09 48.0010.09 ----

Tungsten carbide 48.2050.00 48.2100.00 48.2250.00

Agate (steel mount) 48.3050.00 48.3100.00 - ----

11.1 Utilizing the grinding sets:

1. Laboratory Vibrating Cup Mill "pulverisette 9", model I

(750/1,000 RPM)

Grinding vessel

50, 100 and 250 ml Hardened steel

50, 100 and 250 ml Tungsten carbide

50 and 100 ml Agate with automatically

reduced speed of 750 RPM

2. Laboratory Vibrating Cup Mill "pulverisette 9", model II (1,500

RPM)

Grinding vessel

100 and 250 ml Hardened steel

100 ml Tungsten carbide

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12 Reducing the Size of Grinding Material

12.1 Filling the milling vessels

1. Place the grinding elements

in the grinding vessel such

that their rounded edge is at

the bottom.

2. Fill the material to be crus-

hed uniformly between the

grinding rings (note the maxi

mum useful volumes

50, 100 and 250 ml).

3. Clean the sealing surface

and put the cover on so that

it seals well.

12.2 Grinding

Caution: High temperature: Grinding set becomes very hot during

grinding!

x Do not exceed the maximum grinding time, 15 minutes!

x Before continuing a grinding process:

Let grinding set and crushed material cool to room tempera-

ture!

x Never switch on the Laboratory Vibrating Cup Mill unless

grinding set has been inserted.

x Never switch on Laboratory Vibrating Cup Mill while grinding

sets are empty (contain no crushed material):

x More wear develops and the grinding elements are da-

maged.

x Kits made of agate must be filled with material to at least

about 40% the useful volume.

Place the filled grinding set into the plate receiver and clamp the

clamping lever so tightly that the rubber buffer presses hard

against the cover of the vessel (see Section 6, "Setting the

Clamping Device"). Afterwards, close the Laboratory Vibrating

Cup Mill.

Use the timer to set the time module and the desired processing

time.

On the basis your results, determine the speed and the process-

ing time to be selected. The average grinding time is between 1

and 5 minutes.

With the model I Laboratory Vibrating Cup Mill you can select

the speed of the mill by pressing the relevant buttons:

x Press button II (1,000 RPM) for faster milling.

x If you press the speed "Button I" (750 RPM), the material to be

crushed and the set are handled more gently.

x The high speed is automatically blocked to the agate grinding

set.

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The model II Laboratory Vibrating Cup Mill achieves a speed of

1,500 RPM.

It is particularly suitable for the use of grinding sets made of tung-

sten carbide (100 ml) and hardened steel (100 ml or 250 ml).

x The agate set is not to be used with the model II mill.

12.3 Final fineness and grinding time

The attainable final fineness depends primarily on the grinding

time. Under favourable preconditions (good crushability of the

material) it may be in a tight bandwidth under about 40 μm.

The required grinding time depends on the crushability of the

sample and the desired final fineness.

It is influenced by the

x size of the grinding vessel - and thus also by the

x number of grinding elements,

x type of material,

x grinding vessel and

x speed of the Laboratory Vibrating Cup Mill.

Certain materials tend to "bond" during the grinding, i.e. the ma-

terial is baked onto the outside wall and the grinding elements if

the grinding process has already progressed relatively far. Wet

grinding is advisable in this case. On average, a higher high fine-

ness is achieved during wet milling.

13 Cleaning

To clean the grinding vessels, hold vessels under running water

and use a brush and conventional, mild detergent.

Depending on how dirty the set is, you can also "grind the set un-

til clean" with a small amount of sand (50 ml) in a brief grinding

process.

Following a wet cleaning, always dry the set before putting it

away.

14 Warranty

The warranty card accompanying this mill when delivered must

be filled out completely and returned to the delivering factory in

order for it to take effect.

The company FRITSCH GmbH, Idar-Oberstein, Germany, its ap-

plication technology laboratory or our representatives in your

country will be glad to provide advice and assistance. Please in-

dicate the serial number stamped on the nameplate if you have

any questions.

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15 Maintenance and Servicing

Cleaning the Laboratory Vibrating Cup Mill carefully is a precon-

dition for its safe use.

Aside from following the instructions for care and maintenance

described here, make certain that the electrical supply conductor

and equipment operate correctly - especial that the safety ele-

ments are installed appropriately and operated correctly.

All articulated joints must be serviced at certain intervals, de-

pending on the length of time in use. The maintenance intervals

mentioned here apply for a period of use of about 2 hours daily.

Do not neglect testing and maintenance: This leads to consider-

able damage to the mill and may result in cancellation of claims

under the warranty.

Cons. No.Qnty. Article No. Designation

1 2 91.617.09 Socket hex dowel screw

2 2 91.795.09 Washer 13 DIN 125

3 2 91.992.09 Lock washer Nordlock M10

4 2 92.418.09 Hex nut M10 DIN 439

5 2 82.802.00 Bushing D = 12 / 25

6 1 92.505.00 Cyl. button GN 519-29-M12

7 1 09.120.09 Clamping lever

8 1 93.416.00 Rubber buffer D = 25 x 25

9 1 92.116.09 Headless pin M6x25 DIN 553

10 1 09.102.29 Clamping head

11 1 09.124.09 Hinged pin

12 2 92.431.09 Locking ring

13 1 82.613.09 Inner ring

14 1 09.127.09 Setbolt

15 1 09.103.29 Clamp clip

16 1 93.415.00 Rubber buffer D = 50 x 18

17 1 09.101.29 Fastening clip

18 (4)* 09.122.09 Equalizing ring 1 mm

19 (3)* 09.123.09 Equalizing ring 2 mm

20 1 91.791.09 Hex nut M12 B ISO 4035

21 6 91.301.09 Fillister head bolt M5x12 - 12.9 DIN 912

22 2 09.136.09 Locking element

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15.1 Using the grinding set

The grinding set must be used with those surfaces which have

been milled on the sides inserted into the circular sections (part

22). The circular sections are bolted to the vibrating plate.

When old grinding sets are used, you must unbolt the circular

sections.

Attention!! The entire contact surface of the grinding set must be

seated on the receiver ring.

15.2 Setting the contact pressure

The contact pressure is adjusted with the aid of the equalizing

rings (parts 18 and 19). Insert the grinding set "correctly" (see

Section 11.1) and place the fastening clip (part 17) with the rub-

ber buffer 50 x 18 (part 16) loose on the set.

Place the clamping head (part 10) with the inner ring (part 13)

into the milled semicircular recess in the fastening clip. The

clamping lever (part 7) must be pointed almost straight up (max.

15° in the direction of the fastening clip).

If the clamping lever is slanted more than 15° in the direction of

the fastening clip, you must unbolt the 50 x 18 rubber buffer (part

16) and place further equalizing rings (parts 18 and 19) under the

rubber buffer.

Press the clamping lever down hard until it snaps down by itself

in the lower area - if you have pressed the clamping head over

the bent lever closure.

If it is extremely difficult to push the clamping lever down and you

cannot hear it snap in place in the bottom area, remove one or

two of the spacer rings.

15.3 Checks after each grinding process:

x Nuts M10 (part 4) seated tightly

x Locking rings (part 12) secure and tight

x The two rubber buffers (parts 8 and 16) seated tightly

x clamping lever (part 7) and locking nut (part 20) seated tightly

in clamping head (part 10) and cylinder button (part 6) seated

tightly

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15.4 Weekly checks and maintenance

(10 hours of operation)

x Tight seating of the 6 socket hex bolts (part 21) used to fasten

the disk shaped segments to prevent them from turning in the

receiver for the grinding set.

x Check the disk shaped segments for wear (exchange if nec-

essary).

x Check the rubber buffers for wear (exchange if necessary).

x Lightly oil all articulated joints with machine oil.

15.5 Semi-annual checks and maintenance

(300 hours of operation)

x Check all bushings (part 5) for deformation and distortion