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about Agri-Plastics Custom Rotomolding

For the past 25 years, our focus is to supply quality custom rotational molding services by manufacturing and designing products that meet our customers expectations.

Agri-Plastics was founded in 1995 by the VanBuuren family to satisfy a need for quality Agricultural equipment and very quickly became one of the largest calf hutch molders in the world. Then they expanded their markets to include custom molding of OEM components, in addition they acquired the Diamond Plastics ATV product line in 2008.

Between the two locations, Agri-Plastics Custom Rotomolding has produced quality, rotomolded parts with over 500 molds. As the company has grown and celebrated their 25th anniversary, they have endeavored to employ very experienced staff in all areas of the business, which allowed continuing credibility and growth in the market.

Meet the Team:

our mission

Agri-Plastics Custom Rotomolding develops and tests its products through hands-on experience. Our mission is to offer the best quality plastic products by designing solutions that meet our customers’ expectations, while establishing a worldwide reputation for reliability and durability.

Grassie, Ontario Canada

With over 100,000 square feet of production and warehouse space, our larger production facility is able to produce more products that ship not just to Canada, but to the United States, Europe, Russia, Asia, Mexico, Middle East and South America. The Ontario plant features:

  • 8 Rotational Molding Stations
  • 1 RoboticTrimming Cell
  • 1 Pulverizer
  • High Intensity Mixing
  • 5 Shipping Bays
  • 24-Hour Day Production

Sidney, Nebraska USA

In 2018, a second production facility in Sidney, Nebraska was built. By having a distribution plant in the western United States, Agri-Plastics was able to meet higher production demands, as well as deliver product out to the customers faster. The Sidney, Nebraska plant is 165,000 square feet. This facility features:

  • 9 Rotational Molding Stations
  • State-of-the-art Powder Dispensing System on each molding machine
  • 3 RoboticTrimming Cells
  • 1 Extruder / 2 Pulverizers
  • In-house Recycling Program
  • 5 Shipping Bays
  • 24-Hour Day Production


Years Experience

Agri-Plastics Custom Rotomolding has seen a lot of change in the past 25 years. In the beginning, rotomolded products were simpler with a single wall such as smooth tanks and bins. There were no robots and no color compounding.

But along the way, this industry has made significant advancements. We can now produce complex but affordable products with robotic custom cutting, color compounding, and multi-wall features.  Rotomolding is still advantageous because of its affordability and low startup tooling cost. And production runs can be small or large, allowing for improved cost control. 

Built 4,000 square foot building
Built 12,000 square foot addition
Built 30,000 square foot addition
Built 25,000 square foot addition
Added Neb. Plant 159,000 square feet
Neb. Plant adds 220 Ferry Roto Machine