also known as rotomolding, is a process most
commonly recognized for its ability to easily
manufacture large hollow parts. A hollow mold is loaded
with a predetermined weight of material, then slowly
rotated while being heated, causing the melting material
to evenly coat the inside surface of the mold. The mold
continues to rotate throughout the heating phase, as
well as the subsequent cooling phase. Finally, a solid
and hollow part is removed from the mold and the process
is repeated again.
We are easily able to mold very strong and durable
parts, in a variety of shapes, sizes, and colors.
Seljan Company can seamlessly take you from an idea to a
finished part. We start with a 3D Solidworks™ model.
After we meet your design expectations our
in-house mold department takes
over. In most cases we are able to get your new tool
ready for production in 4-5 weeks. We have 9 rotomolding
work cells and 3 (more to come) robotic finishing cells running 24 hours a day.
Below are just a few of the over 2500 parts we currently mold for our
We have been recognized by the publishers of Plastics
News to be one of the fastest growing plastic molders in
the United States. Our 502,000 sq foot molding plant
allows inside storage of all molded products. We have
inside loading docks so nothing ever gets wet. Many of
our customers take advantage of our space by working
with us on inventory stocking programs. We offer
complete fulfillment services to include packaging and