Contents
Function:
-
simultaneously produce molded parts in two levels, while the parts fall out of only one level in single-parting plane molds.
- clamping forces remains the same, same machine can be used with double output
-
number of parts ejected per shot is almost doubled.
-
two ejector sides and a centrally located hot runner system
-
hot runner works with
-
central sprue bushing, a so-called “snorkel”
- with two opposing needle shut-off nozzles
- synchronization with racks
- often very heavy center is guided with massive columns and sometimes with additional support of wheels
- Disadvantages: high cost and much higher daylight opening necessary
Sample:
Source: www.acomold.com