Yudo HOT RUNNER - System Installation and Disassembly; Preparation; System Handling for Installation

UH-02-Aug16-ENG P 6 / 21
3. S YSTEM I NSTALLATION AND D ISASSEMBLY
Preliminary considerations
The procedures described below are essential for proper operation and use of the system.
All assembly and disassembly processes that are not detailed described, should be performed with
appropriate tool and with enough and proper strength.
In case of any doubt contact YUDO.
YUDO does not assume responsibility for problems that may occur due to non-observance of these
standards.
3.1. P REPARATION
Previously to system installation in the mold is required that the mold housing for the system is prepared. It is
particularly important:
3.1.1. Housings dimensions are in the correct measures, within the tolerances and finishing established by the
project;
3.1.2. It is clean, chipless and without moisture, oils or other;
3.1.3. That all edges are disguised with rays or chamfers. Sharp edges are a real danger to the system,
3.1.4. The area of the front seal should be ground to fit (not be eroded);
3.1.5. If the material of the clamping plate has a strength of < 1000N/mm2, the contact points on which the
pressure pads of the manifold and the nozzle heads rest, have to be reinforced with sufficient strength;
3.1.6. The radius of the sprue bush (RA) has to be adapted to the radius of the machine nozzle (RM). (RA >
RM + 1);
3.1.7. After measuring the heights of all Hot Runner components, calculate the height of the frame plate
according to the determined air-gap measure.
3.1.8. If sealing rings between nozzles and manifold are used they must be exchanged every time after having
dismantled the Hot Runner system.
3.2. S YSTEM H ANDLING FOR I NSTALLATION
Injection systems have different handling ways depending on the type of construction.
YUDO offers 4 types of system construction:
A - Single Nozzle
Single Nozzle Open
Single Nozzle Valve SAS Single Nozzle Valve TSV