Nitronic ST215 User manual

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
Operating instructions
High precision stripping machine
ST215 / ST215W / Polystrip
V3.0 (based on V3.0 German)
Please read through these operating instructions carefully before starting work.

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
General
We thank you or your trust and or choosing our high precision stripping machine!
In order to achieve optimum performance, please read the operating instructions carefully. Damage caused
by not following the instructions will invalidate the warranty. We accept no liability for consequential
damage.
Table o Contents
Table o Contents .......................................................................................................................................... 2
Symbols ........................................................................................................................................................... 3
Product description ...................................................................................................................................... 3
Centering unit (ST215 and ST215W) ........................................................................................................ 3
Connecting the machine ............................................................................................................................. 4
Control Elements ........................................................................................................................................... 4
Placing in operation ..................................................................................................................................... 5
Setting the centering unit........................................................................................................................ 5
Setting the Diameter ................................................................................................................................. 5
Setting the Wayback (ST215W only) .................................................................................................... 6
Setting the Length ..................................................................................................................................... 6
Setting the rotation duration / inci ion rate ....................................................................................... 7
Counterclockwi e or clockwi e rotation / no rotation .................................................................... 7
Maintenance ................................................................................................................................................... 9
Lubrication .................................................................................................................................................. 9
Cleaning ....................................................................................................................................................... 9
Changing the tripping blade .............................................................................................................. 9
Di mantling the centering unit ............................................................................................................ 11
A embling the centering device ....................................................................................................... 12
Fit the tripping blade and calibrating the centering unit ......................................................... 14
Error sources ............................................................................................................................................... 15
Fault on cable ......................................................................................................................................... 15
Basic Equipment, Spare Parts, Options ............................................................................................... 16
Ba ic Equipment ST215 ........................................................................................................................ 16
Spare Part ............................................................................................................................................... 16
Option ....................................................................................................................................................... 17
Technical Data ............................................................................................................................................. 17

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
Symbols
The following symbols draw attention to the different danger levels in the individual chapters:
Please follow the work and procedures marked with this pictogram exactly. Failure to do so may result
in damage to the machine or the cable.
This pictogram refers to working and operating procedures that must be followed, as well as important
information on the functioning of the system.
Product description
In this document the designation ST215 refers to all machine types ST215 / ST215W and Polystrip!
The ST215 is a high-precision stripping and twisting machine especially designed for stripping small
diameter cables. The high processing quality paired with high-quality materials make the ST215 a robust
production machine.
The ST215 is a real all-rounder; it masters stripping of standard cables in short cycle times as well as
micro-coaxial cables with highest precision. The absence of grippers allows the ST215 to process shortest
cable ends, crushes on the outer jacket are excluded. The patented blade system enables an absolutely
precise and repeatable stripping of cable ends.
The jacket is removed by a rotary incision with subsequent pulling-off in a single operation. The ST215 can
be infinitely adjusted to another diameter or length in seconds using a scale.
System overview:
 Rotary incision
 Stripping head with a blade system in one plane
 Knife changing performed without tools
 Stepless adjustment of diameter and length via a scale
The ST215 is suitable exclusively for stripping copper conductors. Make sure that no
metallic objects (e.g. screwdrivers, tweezers) come into the vicinity of the blades, otherwise
the blades will be damaged.
Centering unit (ST215 and ST215W)
The infinitely adjustable centering unit ensures that the cable is precisely aligned with the center of the
blades. If your ST215 was delivered without centering device, you can easily retrofit it.
The advantages of the centering unit are as follows:
 Influencing of the stripping quality by the user is practically ruled out.
 The stripping diameter can be set very close to the conductor, enabling very thin walled insulations to
be stripped without problem.

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
2
5
30
31
17 32
Connecting the machine
 Connect the machine with the supplied power supply unit to the mains supply and to the "2 V DC"
connection. If the power plug is not compatible with your power outlet, please contact your Nitronic
partner or contact us directly.
 Connect the machine to your compressed air installation. The supplied compressed air hose is provided
with a coupling on the machine side, the other side is free. On the free side you must fit a coupling that
is compatible with your compressed air installation. The outer hose diameter is 6 mm.
The machine is internally equipped with a pressure regulator, but the inlet pressure must be between
5 and 8 bar. Under no circumstances must the pressure exceed 8 bar!
 Connect the foot pedal switch (optional) to the connection „Foot Pedal“.
With the foot pedal connected, the activation sensor is inactive! The machine can only be activated
with the foot pedal!
Control Elements
. Diameter 31.Rotation time / diameter feed rate
5. Stripping head with length scale 30. Counterclockwise / no rotation /
clockwise
2. Length 32. Wayback (ST215W only)
17. Centering (ST215 and ST215W)
Fig. 1
Fig. 2

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
Placing in operation
The sequence of the settings should be observed, since changes to the stripping diameter, due to
the design, require adjustments to the stripping length!
For adjustments on the stripping head, i.e. the centering unit or the stripping diameter, the protective cover
must be removed. It can be removed or reinstalled by simply pulling it out or pushing it in. The protective
cover must be pushed up to the front panel, remove any cable residues between protective cover and front
panel.
For safety reasons the machine cannot be started without the protective cover in place!
The blue LED flashes 3 times if an attempt is made to start the machine without the protective cover.
Setting the centering unit
 Measure the external diameter, e.g. with the slide gauge or centering device open; introduce the
cable and close the centering device.
 The cable must in no event be clamped but should be movable in the centering device without play.
Special regulations (e.g. military) require a blocking of the centering unit. This can be done with the
light-coloured Allen screw, use the supplied Allen key.
Do not confuse the light-coloured Allen screw with the black one. If you loosen the black Allen screw,
the centering device will be displaced and must be recalibrated.
Setting the Diameter
 Evaluate the cable conductor diameter, e.g. with the sliding gauge.
 Check that the Wayback is set to 0 (ST215W only).
 Then set a slightly larger value on the diameter scale (about + 0.1mm or 0.01 Inch). The division of
the diameter scale is 0.01mm (0.001 Inch).
When setting the diameter, always turn from a larger diameter to the desired value. For example, if
0.95mm is set and 1.00mm is to be set, then first open to approx. 1.50mm and then turn to 1.00mm
If the stripping diameter is set too small, the blades cut into the conductor and the insulation can only
be removed with high tensile force. This can damage the blades.
 If desired, the diameter adjustment can be blocked with the supplied stud bolt. Remove the existing
stud screw on the side of the diameter adjustment with the supplied Allen key and carefully screw in
the longer stud screw until it stops.

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
Setting the Wayback (ST215W only)
The Wayback is an opening of the blades before pulling off the jacket. This allows a slightly deeper cut
without touching the conductor or shield during the pull-off.
The Wayback is only active when pulling off without rotation. The Switch 30 must be in the middle
position.
 Set the Wayback to 0.00mm firstly
 Raise the Wayback until the desired stripping results are reached.
 The Wayback scale is graduated in 0.01mm (0.0005 Inch). That means that with a full turn the
Wayback will be 0.2mm (0.008 Inch) in diameter.
Setting the Length
 Set the desired stripping length with the length setting knob and read off the length at the length
scale.
Fig. 3

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
Setting the rotation duration / inci ion rate
The rotation duration and the incision rate are selected with the same switch. The longer the setting of the
rotation duration, the shorter the incision rate. At step 0, i.e. the shortest rotation duration, the blades close
very quickly. At step 9, the longest rotation duration, the blades close very slowly.
The stripping head may not be externally braked whilst running. Otherwise there is no guarantee that
the blades will close to the set diameter, particularly with step 9.
Counterclockwi e or clockwi e rotation / no rotation
The desired rotation direction can be set with the changeover switch. This is especially important for the
twisting of stranded wires. The correct choice of rotation direction can also positively influence stripping
quality when stripping micro-coaxial cables.
ST215W only:
In the middle position the stripping head stops before the stripping, i.e. no twisting of the stranded wire
takes place. The cable must be pulled out while the blue LED is ON. A cleaning cycle follows.

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
Fig. 4
Adjust
machine
Insert the cable end to the sensor
With
foot
pedal
Without foot pedal
When the cable touches
the
activation sensor, the machine
will automatically start the
stripping cycle.
Start the stripping cycle with
the foot pedal
Full strip?
No
Yes
Wait until the stripping
head stops before pulling
out the cable
Wait until the
LED is on or the
solenoid air valve is activated
(you hear the air blowing out
the air nozzle). Now pull out the
cable while the LED is on!
End of
stripping
cycle
Twisting
?
(ST215W only)
No
Cleaning
cycle
(starts automatically)
Yes

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
Maintenance
Maintenance is limited to cleaning the stripping head.
Lubrication
The ST215 is designed so that no grease or oiling is required. In order to ensure good function and a
long service life, no greasy or oily substances may get into the device!
Cleaning
The stripping residues should be automatically removed from the stripping head by the compressed air jet
after each stripping operation. If this is not the case, start the machine again without the cable using the foot
pedal. If there is no foot pedal, insert the next cable. This is often sufficient to push stripping residues
away.
 Clean the surface of the stripping head using a dry, clean brush only.
 Dirt on the housing, the protective hood and the stripping head can be removed with a cloth lightly
moistened with benzine.
Do not use solvents such as nitro thinner!
Changing the tripping blade
The stripping blades may only be checked and replaced by
appropriately trained persons.
 Remove the power cord, foot pedal and compressed air.
 To facilitate the handling with the machine, arrange the machine
with aid of the bench clamp. See
Fig. 5 .
 Set the diameter setting to 0.2mm (0.008 Inch).
 Set the length setting to the hindmost position.
Fig. 5

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
 Insert the position retainer into the stripping head as shown in
 Fig. 6 by pushing the large Allen screw at the longitudinal scale to the rear. This makes it easier to insert
the new blades.
 If the centering unit is blocked, loose the bright and small Allen screw.
 Loose the black and small Allen screw of the centering unit.
 Loose the entire centering unit and pull it out Fig. 7 .
Fig. 6 Fig. 7
Now you can see the four stripping blades Fig. 8
In order to avoid losing the very small stripping blades, we recommend that you put down a dark-
colored, smooth mat and use a pair of tweezers.
All four stripping blades must be changed at the same time in order to maintain a consistent
stripping quality.
 Remove each stripping blade (8) individually from the guide
plate (9).
 If necessary, carefully clean the guide plate (9) with a dry
brush
 Insert new stripping blades (8) individually. As far as possible,
align the stripping blades accurately with the track so that the
blades do not subsequently jam.
 Insert the centering unit carefully, but do not yet tighten it.
 Remove the position retainer.
 Set the diameter scale to 0.0mm (0.0 Inch).
Fig. 8

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
17
30
19
6
 Slowly push the big Allen screw (6) back and forth. This will cause the four stripping blades to
automatically fit into the tracks on the guide plate Fig. 9.
 Only now tighten the centering unit.
Fig. 9 Fig. 10
 Tighten a bit the screw (19) (black)
 By rotating the centering scale (17), fully open the centering jaws (25) and insert the calibrating pin (30).
Then by rotating the centering scale (17) close the centering jaws as far as the calibrating pin (30)
Fig. 10 .
 Loosen screw (19) (black) and turn the centering scale (17) clockwise to diameter 2.0 mm. Retighten
screw (19) (black) and remove calibrating pin (30).
The ST215 is now ready for use.
Di mantling the centering unit
 Loosen screw (19) (black) and remove centering scale (17) with a slight turning movement Fig. 11.
 Lift off the O-ring (20) and take it out Fig. 12 .
Fig. 11 Fig. 12
19
20
17

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
23
25
26
22
Push the two keys (22) out of the guides with a pair of tweezers and remove them Fig. 13.
 The guide plate (23), the centering jaws (25) and the helixes (26) can now be removed together Fig. 14.
Fig. 13 Fig. 14
A embling the centering device
 Reinstall guide plate (23) and insert the centering jaws (25) individually Fig. 15.
 Push all four centering jaws (25) outwards to the stop on the stripping head and carefully put the helixes
(26) in place Fig. 16.
Fig. 15 Fig. 16
 By rotating the helixes (26) check that the centering jaws can close smoothly and simultaneously. If
necessary repeat the procedure.
23
25
26

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
 Screw on nut (18) and tighten up Fig. 17.
Fig. 17 Fig. 18
 Insert the two keys (22) and install the previously-greased O-ring (20) Fig. 18 .
The two keys (22) must be inserted flush with the inside diameter of the slot.
 Push centering scale (17) with a slight turning movement to the stop but do not yet tighten screw (19)
(black) Fig. 19.
Fig. 19
If the centering scale (17) cannot be pushed over the O-ring the two keys (22) are not properly.
The centering device must now be calibrated in the next operating step.
22
18
19

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
17
30
19
6
Fit the tripping blade and calibrating the centering unit
 Loosen the centering unit so that it is not tightened.
 Set the diameter scale to 0.0mm (0.0 Inch).
 Slowly push the big Allen screw (6) back and forth. This will cause the four stripping blades to
automatically fit into the tracks on the guide plate Fig. 20.
 Now tighten the centering unit.
Fig. 20 Fig. 21
 Tighten a bit the screw (19) (black)
 By rotating the centering scale (17), fully open the centering jaws (25) and insert the calibrating pin (30).
Then by rotating the centering scale (17) close the centering jaws as far as the calibrating pin (30) Fig.
21.
 Loosen screw (19) (black) and turn the centering scale (17) clockwise to diameter 2.0 mm. Retighten
carefully screw (19) (black) and remove calibrating pin (30).
The ST215 is now ready for use.

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
Error sources
Fault on cable
Fault
Diagnos
is
Fault
recti ication
Inside co
nductor, screen or
dielectric cut into
Cable
is
very
eccentric
Reduce centering diameter in
steps
Jacket
cannot be stripped off
Very small difference in diameter
between Jacket and conductor.
Reduce centering diameter in
small steps
Fault on machine
Fault
Diagnos
is
Fault
recti ication
Can not insert the cable
Cable rests in the stripping head
Clean, with startin
g
the stripping
cycle several times.
Bad stripping quality
Strippi ng blades are
broken
or
used
Change the stripping blades
T
he
blue L
ED is blinking 3 times
The safety shield is not mounted
Insert the safety shield

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
Basic Equipment, Spare Parts, Options
Ba ic Equipment ST215
Qty
.
Description
Article
N
umber
1
Stripping machine
ST215
/ ST215 Inch
010083
/
010307
1
Stripping mac
hine ST215
W
/ ST215
W
Inch
010305 / 01031
1
Stripping machine Polystrip / Polystrip Inch
010520 / 010535
1
Bench
clamp
010177
1
Power
supply
with Adapter Set
010113
1
C
oupler
for air hose
010151
1
Allen key
for diameter blocking
EN
-
7 11
1
Stud screw
for diameter blocking
BN
-
617 M2x8
010569
1
Position retainer
ST
-
0900
1
Operating
Instructions
English
or
Operating Instructions German
EN
-
7120
E
EN-7120D
1
Allen key for centering unit
(ST215 / ST215W only)
E
N
-
7 12
1
Calibrating
mandrel
(ST215 / ST215W only)
BN
-
1208
1
Set (3pcs)
Set of
Centering I
nsets, diameter 1.0 / 0.5 / 0.2mm
(Polystrip only)
010591
Spare Part
Qty
.
Description
Article
N
umber
1
S
et
( pcs)
Stripping
blades HSS
(
ST215 / ST215W only)
010075
1 Set
( pcs)
Stripping blades Titanium coated carbide
(Standard for ST215 / ST215W)
01007
9
1 Set
( pcs)
Stripping blades carbide Polystrip
(Polystrip only)
010520
1 Set
( pcs)
Input connectors for power supply ( EU,
USA
, UK,
SAA
)
010115
1
Cover
010322
1
Length
button
010 0
1
Guide
plate
010225
1
Solenoid
air
valve
0101 9
1
Stud screw, centering b
locking
M1. x
2.5
chrome
010566
1
Stud screw, centering
M1. x
black
010567
1
Stud screw for diameter blocking
BN
-
617 M2x8
010569
1
Sealing Cap with Nitronic Logo
010216

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Nitronic
AG
Mattenstrasse 11
2555 Bruegg Email: [e-mail]
Switzerland Phone: + 1 32 373 70 70
Option
Qty
.
Description
Article
N
umber
1
Foot
pedal
01008
1
Micro Filt
er
0103 6
2
Port for Micro Filter straight
0103 7
Technical Data
Wire size range 0.08 mm (0.003”) to 2.00 mm (0.08“) (12 – 0 AWG)
Outer cable diameter max. 2.5 mm (0.1“)
Stripping length up to 13mm
Cycle time 0.3 sec. up to 6.2 sec. (stripping cycle), 10 different steps
Rotation / Twisting Clockwise / Counter clockwise
Diameter Scale 0.01 mm (0.001 Inch)
Wayback Scale (ST215W only) 0.01 mm (0.0005 Inch)
Length scale 1.0 mm (.06 Inch)
Dimensions LxWxH 210 x 5 x 126 mm (10 x 2.2 x 5 Inches)
Weight 850g
Stripping blades pcs. Carbide, Titanium coated
Power supply (Primary) 100-230 VAC, < 0.6A RMS, 7-63 Hz
Power supply ST215 (Secondary) 2 VDC
Compressed air 5 to max.8 Bar
Outer hose diameter 6mm (0.2 “)
We reserve the right to make technical changes at any time!