Contents1.
1.1

Manufacturers recommended use
Safety2.

Drawings & parts description

3.

Application

4.

Technical data & contents of standard package

5.
5.1
5.2
5.3

Before use :Selection of grinding position
Selection of electrode diameter
Selection of grinding angle

6.
6.1
6.2

Using the Neutrix
Operating the Neutrix
How to grind the electrode

7.
7.1
7.2

Maintenance: Replacing the filter.
Replacing the diamond wheel

8.

Parts diagram

9.

Parts list

10.

Declaration of conformity

11.

Declaration of warranty

Manufacturers recommended use
Neutrix has been designed for the sole purpose of grinding tungsten
electrodes. Any use, which is not described in this manual, is strictlyprohibited.
It is very important that the user reads and understands the contents ofthis instruction manual.
1.1

Safety: !
!
!
!

Check that the machine is undamaged.
Do not use the machine without the filter.
Change the filter in accordance with the instruction manual.
Only turn the machine on when the electrode holder is in the grinding
chamber.
! Do not remove the electrode holder before the motor has come to acomplete stop.
! Repairs and maintenance must only be carried out by authorisedpersonnel.
! Do not use the machine in humid places.
! Only use original replacement parts.
! Unplug the machine from the mains supply before any maintenance work
is undertaken.

2.

6

Drawing & parts description

Electrode holder guide25

20 Eccentric plate to selectgrinding position2

Filter housing
Angle degreescale(1 step= 5 °)Grinding head
26

Filter cassette

12 Depth setting gauge.
15 Allen screw to tighten
the grinding head
1.1 On/Off switch

Machinenumber
25.2 Filter cover
25.3 Allen screw tofix the filtercover

11.2 Mains cable

Motor

Adjustment ofturning speed

6Electrode holder
guide

22

Knurled wheel

14

Grinding stop

29

Inspection
cover

3

Diamond wheel

5

Spindle fordiamondwheel

19

Allen screw

Electrode clamp

5

Electrode holder

StopPart Nos for electrode clamps
16.1
16.2
16.3
16.4
16.5
16.6

for
for
for
for
for
for

1.0 mm
1.6 mm
2.0 mm
2.4 mm
3.2 mm
4.0 mm3.

Application
Neutrix is manufactured to offer the following options:!
!
!
!

Grinding of oxidated or pure tungsten electrodes.
Grinding electrodes with diameters from 1,0 – 4,0 mm.
Variable angle adjustment from 15° to 180°.
If it is necessary to grind electrodes shorter in length than 15mm–
a special electrode clamp can be supplied.
! Integrated filter to remove the grinding dust.
! To be able to grind tungsten electrodes on site.
! To achieve an exact and longitudinal ground tip.
4.

Technical data & contents of standard package
Motor:
Power:
Rpm:
Weight:Filter:
Diamond wheel:•NEUTRIX
Containing:••

850 Watt
230V, 50 Hz. Insulation according to EEC 50144.
Adjustable between 7000 and 320002.5 kg
Inhalation filter.
Ø 40 mm-Motor Type 850E
Grinding head with filter housing and filter
Diamond wheel Ø 40 mm
Electrode holder
Electrode clamps 1.6, 2.4, 3.2 mm-Allen key 8 mm
Allen key 4 mm
Spanner 13/17 mm
Spanner 13/14 mm

Tools

Plastic bag to remove the filter

5.

Before use
Note:

5.1

Ensure that the grinding head (2) is centred and tightly fixedwith the allen screw (15) to the motor.

How to select grinding position
With the Neutrix it is possible to select 3 different grinding positions! Unscrew the knurled wheel (22)
! Lift the eccentric plate (20) and turn through 90° to the next position,
place the eccentric plate back in the slide of the angle adjustment.
! Tighten the knurled wheel (22)
Eccentric plate to select the grinding position123(left mark)(centre mark)(right mark)Inside grinding
positionCentre grinding
position

Outside grinding
position5.2

Selection of electrode diameter
There are 3 different electrode clamps (1.6, 2.4, 3.2 mm) supplied with themachine.
Unscrew the electrode clamp from the electrode holder and replace with therequired size.

5.3

Selection of angle
!
!
!
Note:

6.

Loosen slightly the knurled wheel (22).
Place the degree sign of the guide (20) at the selected angle.
Tighten the knurled screw (22).
15° is the smallest included angle of the electrode, that can beground.
180° position makes a flat on the electrode point.
(1 step = 5°)

Using the Neutrix! Connect the machine to the power supply.
! Adjust the machine speed according to the recommendations on page 8.
! Select the electrode clamp to suit the tungsten to be ground.

6.1How to operate Neutrix! Place the tungsten electrode in the electrode holder (5) withapproximately 35 mm protruding.
! Push the electrode clamp into the depth setting gauge (12) until the clamp
is located into the allen screw (15), turn clockwise to tighten.
! Put the electrode holder through the electrode holder guide (6) until thetungsten is touching the diamond wheel, this operation can be observed
through the inspection cover (29).
! Start the motor (11).

6.2

How to grind the electrode! Turn the electrode holder, whilst pushing the electrode against thediamond wheel. Do not push too hard in order to avoid blueing of theelectrode. This can be viewed through the inspection cover! The grinding is completed when the stop of the electrode holder (14)touches the end face of the electrode holder guide (6).
! Switch off the motor and remove the electrode holder when the motor hascome to a complete stop.
! Place the electrode holder in the depth setting gauge. Turn anti clockwise
and the electrode can be removed.
Recommended turning speed

Diam. of the electrode 1.0 mm
Speed adjustment6Note:

1.6 mm 2.0 mm 2.4 mm 3.2 mm 4.0 mm
65544

Do not press too hard at the electrode holder before the stop (14)has been reached.
Remember to put the electrode holder into the grinding chamber
before you start the machine and to keep it there until the motor
has stopped. (Otherwise grinding dust may come out of thechamber).

7.

Maintenance
Remove the plug from the power supply before carrying out any
maintenance or repairs.

7.1

Replacing the filter
The filter has to be changed when the amount of dust makes it difficult towatch the grinding process through the inspection cover (29).
1.
2.
3.
4.
5.

7.2

Loosen the allen screw (25.3) at the filter housing (25).
Remove the filter cover (25.2).
Remove the filter cassette (26) and put it into the plastic bag for
disposal.
Insert a new filter cassette so that the rubber seal is sitting tight to thegrinding head (2).
Mount the filter cover and tighten the screw.

Replacing the diamond wheel
1.
2.
3.
4.
5.
6.
7.
8.
9.

Remove the electrode holder (5).
Loosen the knurled screw (22)
Unscrew the electrode holder guide (14) using the spanner (SW 17)
Remove the grinding chamber (10) including the inspection cover(29).
Unscrew the nut retaining the diamond wheel, using the spanners(SW14 & SW13), two flats are located on the motor spindle behindthe diamond wheel for this purpose.
Remove the diamond wheel.
Insert a new diamond wheel and replace the retaining nut.
Replace the grinding chamber and inspection cover
Replace the electrode holder guideIf the grinding head chamber is too dirty it can be cleaned with analkalised solution and rinsed with water. If doing so remember toremove the filter first8.

Parts diagram:-