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Operating the machine, 2 overview table of the parts of the device, 3 preparing the sample material – Retsch PP 25 User Manual

Page 16: Caution

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Operating the machine

16

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5.2 Overview table of the parts of the device

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Element

Description

Function

A

Handle hand wheel

Grip for turning the hand wheel (hinged)

B

Hand lever

Lever for operating the pump

C

Hand wheel

For turning the spindle into the pressing position

D

Threaded spindle

For tensioning the die tool

E

Pressing chamber door

Protective equipment

F

Centring ring

Positioning aid for die tool (alternative use)

G

Die plate

Cover on the pressing cylinder

H

Shut-off valve

Valve for building up pressure

J

Pressure cylinder

Presses the sample against the spindle

K

Pressure display

Indicates the level of pressure in the hydraulic system

L

Suction cups

Hold the press in position

M

Plunger

Builds up pressure

N/O

Pressure piece

Surrounds the sample

P

Basic body of the die tool

Accommodates the pressing parts

R

Vacuum connection

Adapter for evacuation

S

Slide

Anvil for pellets

PP

Pressing plate

Plate to aid pellet ejection

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5.3 Preparing the Sample Material

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CAUTION

Danger of personal injury
Dangerous nature of the sample

Depending on the dangerous nature of your sample, take the
necessary measures to rule out any danger to persons.

Observe the safety guidelines and datasheets of your
sample material.

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These degrees of fineness can be achieved e.g. by grinding in a ball mill ,
preferably in the Retsch PM100; PM200; PM400; RS200 or MM400.

In most cases, particularly where hard materials are concerned, some wax powder
has to be mixed well with the ground sample before conducting the pressing
procedure.