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DURACAST | ROTATIONAL MOLDING

Dura-Cast has the largest commercially available rotational molding (rotomolding) machine located in Florida. It is capable of manufacturing products up to 20 feet long or 12 feet in diameter. When this machine is added to the ten other machines that Dura-Cast operates, many thousands of high quality products can be produced on-time each week. This available rotomolding capacity is most important when a customer’s order is due and the unexpected happens. Our manufacturing team is trained to rapidly move the mold to a new machine and continue production with minimal loss of throughput. This ensures that customers who rely on us for tight Just in Time (JIT) deliveries can continue their manufacturing without interruption.

WHAT EXACTLY IS ROTATIONAL MOLDING?

There are four basic steps involved in Rotational Molding:

Step 1:  Rotational molding is a process in which pre-measured plastic resins are put into a custom designed mold
Step 2. The mold is closed and heated to melt the resin while being rotated on both vertical and horizontal axes. This multiple axis movement enables the plastic to evenly coat all areas of the inside of the mold.
Step 3. The mold is then moved back to the staging area where it is opened and emptied of the completed part.  The mold can then be reloaded to manufacture another identical part or a different mold can be attached to mold an entirely new product.
Step 4. Once the predetermined resin thickness is achieved the mold is moved into a cooling area, continuing to rotate until the plastic hardens to its desired shape.