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Plastic Rotational Molding of a Water tank

At Lerner Molded Plastics we specialize in plastic rotational molded products, in a wide range of sizes; this service is exemplified by this water purification tank. The tank was fabricated on our Large Hercules multiple spider rotational molding machine. The linear low-density polyethylene (LLDPE) used to fabricate the tank featured a minimum thickness of .125″. Tank halves measured 7′ 10.5″ in length, 4′ 9.5″ in width, and 1′ 7.75″ in height, and were fabricated with a textured finish.

Per our PPAP process first article samples were provided to the customer for approval. We currently roto mold 1,000 of these tanks per year with lead times of 8 weeks. For more information on this project or all of our precision rotational molding services, see the table below or contact us directly.

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Highlights of this Precision Rotational Molding Project

Product Description Water Tank is used on a large Commercial Water Purification system.
Precision Rotational Molding Capabilities Applied/Processes
Plastic Rotational Molding
Equipment Used to Manufacture Part Large Hercules multiple spider rotational molding machine
Expertise Plastic Rotational Molding
Overall Part Dimensions Water Purification Tank
  • Length: 7' 10.2500"
  • Width: 4' 9.5000"
  • Height: 1' 7.7500"
Features/Benefits UV - Resistant
Material Used Housing Half
  • Linear Low-Density Polyethylene (LLDPE)
  • Minimum Thickness: 0.125"
Material Finish Textured
In process testing/inspection performed PPAP First Article Samples provided
Industry for Use Water Purification
Volume Water Tank - 1000/year
Delivery/Turnaround Time 8 weeks
Delivery Location Indianapolis, Indiana
Standards Met Customer Specifications, 2D CAD Drawing
Product Name Water Purification Tank