Thermoject® Nozzles - Premium
Big Shot-Series
2076 HK/OH - Valve gate DNZ + DNZL
Low heater price and quick
availability
With this generously dimensioned
melt channel geometry and the innovative heating technology the processing of nearly all plastic types and a
large application spectrum from
400 g up to 3,000 g is possible
(relating to low viscosity materials).
By sheathing the nozzle flange with
a heat conduction, the number of
heaters could be reduced. Using
similar heaters in standard lengths
lowers the price and increases the
availability.
HK = protective tube
shortend
1
Low-stress injection molding reduces the reject loss


For nearly all plastic types and
shot weights from 400 g up to
3,000 g
2
The exact heater positioning and the
adjustment of the heat capacity to
the stepless nozzle length ensure a
homogeneous temperature profile
OH = without
protective tube
Technical Data:
•Electrical connection:
230 Volt
•Thermocouple:
FeCu-Ni (type J)
•Max. injection pressure:
1800 bar
Materials:

1

•Nozzle body, nozzle head,
valve pin:
tempered steel
•Wear resistant treatment for
pos. 2 on request
2
Stock list:
1
Nozzle body
1.1 Heat conduction tube
2
Nozzle head DNZ
3
Valve pin (not part of delivery)
4
Support disc (not for OH)
5
Protective tube (not for OH)
6
Absorption ring (not for OH)
7
Locking ring (not for OH)
8
Location ring (not for OH)
9-11 Heater with integrated
thermocouple and wedge lock
(leads 3m/5m)
12 Operating Unit
(not part of delivery)
Section "X"
Needle valve
Type DNZ and DNZL
Important Notice:
The tool must be grounded!
If the nozzle is operated outside the
tool, the nozzle must be grounded.
We reserve the right to make technical changes
PSG Plastic Service GmbH • P.O. Box 42 01 62 • 68280 Mannheim • Germany
Phone +49 621 7162-0 • Fax +49 621 7162-162 • www.psg-online.de • info@psg-online.de
05/11
Nozzle dimensions
Big Shot 2076 HK/OH - DNZ/DNZL:
4
3
SW/head
6
8
7
9
1
2
SW/nozzle
5
1
AO=A-expansion
10
1
2
4
5
6
7
8
9
M
SW /
nozzle
SW /
head
Heater
Art.-No.,
Pos.9
Heater
Art.-No.,
Pos.10
Heater
Art.-No.,
Pos.11
54
M 42x1.5
50
41
332927
332927
-
70
54
M 42x1.5
50
41
332928
332927
-
22
61
54
M 42x1.5
50
41
332928
332927
-
293805-320
22
70
54
M 42x1.5
50
41
332928
332928
-
2076 OH A>240≤320
293804-320
22
61
54
M 42x1.5
50
41
332928
332928
-
2076 HK A>320≤450
293805-450
22
70
54
M 42x1.5
50
41
332928
332928
332928
2076 OH A>320≤450
293804-450
22
61
54
M 42x1.5
50
41
332928
332928
332928
2076 HK A>450≤600
293805-600
22
70
54
M 42x1.5
50
41
332928
332928
332928
2076 OH A>450≤600
293804-600
22
61
54
M 42x1.5
50
41
332928
332928
332928
2076 HK A>600≤800
293805-800
22
70
54
M 42x1.5
50
41
332928
332928
332928
2076 OH A>600≤800
293804-800
22
61
54
M 42x1.5
50
41
332928
332928
332928
Order description
nozzle 2076,
Pos.1-11
(without Pos.2
and 3)
Article no.
Ød1
(standard)
2076 OH A≥110≤150
293804-150
22
61
2076 HK A>150≤240
293805-240
22
2076 OH A>150≤240
293804-240
2076 HK A>240≤320
3
ØD1 ØD2
•The number of control circuits per nozzle depends on the nozzle length.
Marking consecutively by starting at the gate (max. 3). Use 4 control circuits
per nozzle for heat sensitive plastics, see PSG's specification
•The number of control circuits per nozzle can be determined from the
"Heating" section on the above table.
•By specifying the mold measurement A, with details of the molding material, the nozzle dimension A0 will be made, allowing for expansion.
* Dimensions see datasheet "Operating units".
1
2076 Ø d1
10
2076 b
Ø 20
70
Ø 22
70
Manifold height b depends on
melt channel Ød1.
Nozzle head dimensions
Big Shot 2076 HK/OH - DNZ/DNZL:
cyl.
Cone DNZL
0.3 needle
overlap
1
3
2
Nozzle head, Pos. 2:
Order description
nozzle head 2076
Article no.
DNZ 2072/76
294011
DNZL 2072/76
294011-*
1
2
3
L variable
ØDg6
SW
ØOH7
standard
-
30
41
Ø 6.0
20/50
30
41
Ø 6.0
Note: ØO=4.5 OX available for extra costs.
* Article no. for dimension L elongated:
L = 0≤20 / Art.-No. nozzle head - 020
L > 20≤50 / Art.-No. nozzle head - 050
L > 50≤100 / Art.-No. nozzle head - 100
** Cone angle in parentheses (10°) is available for extra cost
Dimensions and installation dimensions,
Duct for wiring:
Duct for wiring
Article no.
BxH
Cross section
(mm2)
Type 1
165670
35x41
1254
Type 2
165672
37x11
264
Type 3
165674
30x31
784
Type 4
165676
24x31/41
856
Type 6
165680
17x29
405
Type 7
165682
35x60
1881
revolving
Example: DNZL 2072/76, L=30mm, Art.-no. 294011-050
Duct for wiring
Manifold
BxH = depending on the size of the system. (Clarify with PSG!)
Duct for wiring
Installation dimensions
Big Shot 2076 HK/OH - DNZ/DNZL:
6
7
8
9
5
3
4
1
2
1
2
3
4
5
6
7
8
9
A
L
B
T
Ø DH7
Ø P3
Ø P2
Ø P1
ØP
2076 HK
150 ≤ 240
max. 100 variabel
80
12.5
30
43
60
76
115
2076 HK
>240 - 800
max. 100 variabel
110
12.5
30
43
60
76
115
2076 OH
110 ≤ 150
max. 100 variabel
80
12.5
30
43
60
70
115
2076 OH
>150 - 800
max. 100 variabel
110
12.5
30
43
60
70
115
Series
Minimum nozzle length A1 depending on manifold's inside dimensions (x/y):
While heating up the screwed-in nozzle an extra bending moment is built up on the nozzle axis because of the
manifold's linear expansion.
The bending moment depends on the inside dimension of the nozzle (direct flow way from the center per example
sprue bush to inside dimension).
Further more the bending moment depends on the ∆T (melt temperature - tool temperature)
Assumed ∆T = 250°C.
Minimum A1
=
inside dimension (x/y)
(valid A1 > 150-820)
2
Notice: If A1= 130≤150 (please contact PSG)
Measurement details: General tolerances DIN ISO 2768 mK.
Contact height with elongation nozzle head
Big Shot 2076 - DNZL:
Contact height [mm]
DNZL nozzle head - contact height
Elongation L [mm]
These are guide values, depending on cooling and injection process.
(Upgrading is possible)
PP, PE(1), PMMA, ABS, PS, PD, PC/ABS, ASA, SAN, TPE
.. PP+GF, PA6, PA12, PC, POM, PPO,TPU
-------
PA6+GF,PBT, PC/PBT, SMA, SMA+GF, PES, PES+GF, PSU,
PSU+GF, PEI, PEI+GF (all (2))
--- ---
PA6.6 (3), PA6.6+GF (3)
Contour
Exemption
(1) For PE, without elongation L, heightening contact up to 8mm for Big Shot 2076
(2) Min. elongation L=10mm
(3) Min. elongation L=15mm
Contact height "K" adjustment
by customer by following
the contour. (If the chamfer >30°
then please contact PSG).
A = Nozzle length
L = Elongation
K = Contact height
Install and construction note:
•Cooling must be provided close to the gate, with circulating water. On the moving side
of the mold a fountain type cooling, opposite to the gate should be used.
•The front face of the nozzle head must be completely in the melt. Where the gate is on
a sub runner, a thin disc should be molded immediately in front of the nozzle head.
•Reduce the contact surface to the tool in the area of the nozzle head if you use elongated nozzle heads.
Please see diagram "Contact height for elongated nozzle heads DNZL."
Connecting Leads:
Connecting leads of the nozzles are heat resistant max. up to 200°C
and may not have direct contact to the beam of the manifold.
Spare parts
Big Shot 2076 HK/OH - DNZ/DNZL:
Series
Heater band with
wedge lock* and integrated
thermocouple,
Pos. 9-11
Article
no.
2076
RPI Ø45x35 / 275 W / AS: 3000
332927
2076
RPI Ø45x35 / 275 W / AS: 5000
332927-1
2076
RPI Ø45x65 / 500 W / AS: 3000
332928
2076
RPI Ø45x65 / 500 W / AS: 5000
332928-1
(*) Equipment see nozzle dimensions.
AS=connection lenght
Order example:
Nozzle (pos. 1-11,
without pos. 2 and 3)
2076
OH
360
293804-450
PP
Series
Execution
Mold
dimension A
Article no.
Please state plastic type or tool
and processing temperature
Nozzle head (pos. 2):
DNZL
2072/76
Ø O=6.0
L=50
Art.-No. 294011-050
Gate type
Series
Gate diameter
Please state elongation L only for DNZL
Article no.
•The hot runner nozzle is supplied complete with nozzle head fitted!
•Please be sure to observe the numbering of the control circuits before
shortening the cables!