Plastics News Daily Report - May 10, 2018 - 82

82 ‹ PLASTICS NEWS DAILY REPORT ‹ May 10, 2018

Sumitomo introduces
automatic quick
color change system
Sumitomo (SHI) Demag Plastics
Machinery North America Inc.
is introducing a new automatic quick color change system at
NPE2018.
The company is showing the
color change technology on an
SE50EV-A all-electric press by
molding polypropylene vacuum
cleaner fan blades. The cycle time
is 14 seconds.
The color change system is
available as an option on SEEV-A
machines. It saves labor by automating the steps from purge
to molding. That cuts time and
reduces the amount of resin and
colorant, by 17 percent, to make a
change, the company said.
An optional image sensor, plus
the SEEV-A quality control capabilities, prevent defective parts
from reaching the production line.
A programmable pigment mixer - a Pigmic unit from CAM Co.
Ltd. - changes colors prior to
the last shot. A color definition
camera works with the mixer to
log in desired colors and kick out
nonconforming parts.
The precision weighing equipment and pigment mixer are installed above the hopper on the
injection press. Pigment is fed directly to the screw.

BOOTH W304
SUMITOMO (SHI) DEMAG
PLASTICS MACHINERY
NORTH AMERICA INC.
In addition to the color change
system, Sumitomo Demag is also
rolling out an optional cavity
pressure sensor and material temperature sensor inside the mold.
All of the company's molding
machines on display are showcasing the Productivity+ benefits
of the presses, which Sumitomo
Demag says include advanced
technology, applications flexibility and innovation that expands
the capabilities of injection molding by increasing throughput,
eliminating waste, reducing energy use and improving molder
profitability.
Ten of the presses will highlight
the Z-Molding advanced motor
technology and the flexibility of
the SEEV-A platform machines.
In packaging, an all-electric
SE180EV-A with 202 tons of clamping force is turning out an in-mold
labeled container lid using injection compression molding. The
two-cavity mold is running a cycle
time of fewer than five seconds.
Injection-compression molding of
high-speed, thin-wall parts "can
achieve results that compare

The SEEV-A machine, above, is
an all-electric press with a new
automatic quick color change
system.

Sumitomo Demag photos

The El-Exis SP is running on a cycle time of fewer than two seconds for
a 72-cavity mold that's turning out more than 130,000 caps an hour for
bottled water.

to the thin wall and light weight
of thermoformed parts but with
the quality and design features
of injection molding," said Mike
Uhrain, technical sales manager
of packaging.
Another
packaging
demon-

stration is turning out more than
130,000 caps an hour for bottled
water on an El-Exis SP hybrid. The
72-cavity mold is running on a cycle
time of fewer than two seconds.
Sumitomo Demag is also
showing gas-assist of an automotive-type part on a SE500EV-A
all-electric press with 566 tons of
clamping force. The single-cavity,
hot runner mold is on loan from
Sajar Plastics Inc. The flow length
is 23.5 inches. With gas assist,
the high density polyethylene
part weighs 22.6 ounces vs. the
23.9 ounces the part would weigh

without using gas assist.
From something large to something small.
Sumitomo Demag is doing micromolding, making DNA sample
collection tubes on an all-electric
SE-DUZ press with an SL screw assembly.
You can see Sumitomo Demag
presses at these partner booths
during NPE: RJG Inc., Booth
W3383; Yushin America Inc.,
Booth W2173; Gammaflux LP
(Manner molds), Booth W764;
and Canon Virginia Inc., Booth
W223.

SCENES FROM NPE2018

THE BIG SHOW
Plastics News photo by Michael A. Marcotte

By Bill Bregar
Plastics News Staff

NPE2018 attendees peruse booths during the show. The show is held
in a 1-million-square-foot facility with 12 sector and process-specific
zones, including the 3D/4D Printing Zone, Bottle Zone, IDSA Design
Center, Material Science Zone and Recycling Demonstration.



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