Ultra Valve Gate Technology0 pages

Ultra Valve Gate Technology
Ultra 350 nozzles for direct access gating of small parts.
Valve gating advantages
Customers choose Ultra valve gates
for applications that require superior
gate quality and wide processing
windows. Valve gating offers several
benefits to the injection
molder including:
• Superior gate quality
• Elimination of drool and gate string
• Improved physical properties with
lower molded-in stress
• Fast cycle times
• Ability to balance family molds
and control weld line location with
sequential valve gating
• Added process control with valve
gating
Continuous improvements and new technologies have established the Husky® hot
runner product portfolio as one of the most
advanced and reliable in the industry. The
Ultra nozzle family provides an unmatched
combination of reliability and performance
featuring superior gate quality, fast cycle
times, wide operating windows and easy
start-up over a wide range of applications.
As one of the largest manufacturers of hot
runners and temperature controllers worldwide, we continue to invest in our global
infrastructure to build strong relationships
with customers. No company delivers more
valve gated nozzles than Husky on an annual basis and our customers trust Husky to
provide the most reliable systems available.
Added control with valve gating
Molders gain control over gate opening
and closing using a valve gated hot runner.
The gate is positively sealed with the use of
a valve stem. The actively controlled valve
stem moves forward and seals the gate
opening. The valve stem remains in the
closed position during mold open and part
ejection, preventing drool and stringing.
The molded part separates from the gate
without breaking or shearing plastic, leaving a small witness ring. Unlike thermal
gating, gate quality remains consistent over
a wide range of process conditions.
Physical properties of the molded part are
also improved with the use of valve gates.
Due to larger gate diameters, valve gates
generate less shear compared to smaller
thermal gates. The result is a part with less
molded-in stress, reduced warpage and
better physical properties.