Specifications

64
D-M-E Runnerless Molding Systems
The Hot-One System
Guidelines for the use of a manifold block
Notes & General Comments :
- If the system will not start up, throttle down or shut off wa-
ter to the “A” plate. Water to the nozzle plate should remain
on.
- If the machine will not extrude with the tool open, close the
tool, jog the screw forward, open the tool, close the tool, and
jog the screw forward again.
- If the machine nozzle will not stay against nozzle, proceed
with caution. Set injection forward pressure to 10 bars. Set
injection speed to slow, making sure the system is up to
temperature. Move the sled into the tool and cautiously jog
injection forward until material flows through gates. If ne-
cessary, raise the injection pressure in steps up to, but not
exceeding 35 bars. Clear gates and all mold surfaces of
material. Finally, start the molding process.
- Never inject plastic through the hot runner system with the
mold open.
Important:
Please treat these suggestions as guidelines only.
Always follow standard moldmaking industry practices to
ensure the proper function of the mold and runnerless
system.
CAUTIONS !
Make sure you wear proper safety equipment such as glo-
ves and face shield at all times.
Never use a torch to open frozen-off gates. This may dama-
ge tips, gate detail, or the mold itself.
If you insert anything into the gate or tip to clear it, you must
first back the machine nozzle away from the tool.
Check for drool out the back of the manifold before you
start. Drool here will indicate little or no pressure in the ma-
nifold.
Never inject any runnerless molding system with high injec-
tion pressure when the mold is open.
During the first 15 min. of operation, check system for leaks.
Loss of shot size could be an indication of leakage.
Check to see that all cooling fans are operating in tempera-
ture control main frames.
Input voltage to the main frame system must not be less
than 208 vac.
Voltages less than 240 VAC will require an extended time to
bring the system up to its proper operating temperature.
Lower voltages decrease effective wattage. For example:
at 208 VAC, the effective wattage is 25 % less than that at
240 VAC.
PIC-24 G
ZONE CONTACT
ZONE 1 A1-A2
ZONE 2 A3-A4
ZONE 3 B1-B2
ZONE 4 B3-B4
ZONE 5 A5-B5
ZONE 6 C1-C2
ZONE 7 C3-C4
ZONE 8 D1-D2
ZONE 9 D3-D4
ZONE 10 C5-D5
ZONE 11 E1-E2
ZONE 12 E3-E4
315
5
5
B
A
C
5
3 1
2
3
2
4
4
B
1
A
2
3
4
C
1
E
5
D
E
24
3
2
4
1
D
ZONE 10
ZONE 5
ZONE 2
ZONE 7
ZONE 3
ZONE 1
ZONE 4
ZONE 6
ZONE 12
ZONE 11
ZONE 8
ZONE 9
New mold power connector PIC-24 G
All new D-M-E Hotrunner systems will be fitted with the
new PIC-24 G connector.
The PIC-24 G replaces the PIC-25 G connector and pro-
vides for the higher continuous power requirements of
hotrunner systems and is conform with the new CE re-
gulations. This modular connector, like its predecessor,
connects 12 heating zones to the temperature controller
unit.
The contacts are rated 20 Amps at 400 Volts and the
connector's footprint is only slightly larger than before.
The main frames, MFPX-5, 8 or -12 G, are equipped with
the
new power cable MPC-24 G that fits the new PIC-24 G
mold power connector.
However, to overcome the transition problems from old to
new style,
D-M-E offers the possibility to use adapter
cables (length 0.5m).
MPC-2524 : connects molds with the old PIC-25 G to the
new MPC-24 G power cable.
MPC-2425 : connects molds with the new PIC-24 G to
the old MPC-25 G power cable.
Furthermore, the
D-M-E terminal mounting boxes PTCX
and PICX are provided with an extra plate so that both
styles power connectors can be fitted.
Mold power input connector
Connection diagram