Rotational Molding

Rotational Molding
Rotational molding offers several key benefits, including the ability to create large, durable, and lightweight products (up to 9’x9’) with complex shapes. It allows for hollow parts production, reducing material usage and cost. The process is highly versatile, enabling the use of various materials and producing products with excellent strength and resistance to impact, UV, and chemicals. Rotational molding also provides uniform wall thickness and is suitable for both small and large production runs.
Here’s how it works:
Rotomolding uses heat, gravity, and centrifugal force to form hollow plastic parts. The process does this by rotating a mold along two perpendicular axes.
Rotational molding consists of four primary stages:
- Loading: This is where the powdered plastic resin is loaded into a preheated mold.
- Heating: The constantly rotating mold is moved into an oven. Once fully heated, the plastic resin melts, evenly coating all sides of the mold.
- Cooling: Once the desired shape is formed, the rotating mold moves to a cooling area. The mold keeps rotating until the plastic is fully cool and solid.
- Unloading: The finished product is removed from the molds.
Materials commonly used in rotational molding include Polyethylene (PE), Polyvinyl Chloride (PVC), Polypropylene (PP), Nylon, and Polycarbonate (PC). These materials are chosen for their durability, flexibility, and ability to withstand the heating and cooling processes involved in rotational molding.
Examples of products and solutions we offer for various industries:
- Automotive: Tanks, dashboards, toolboxes, and fenders.
- Agriculture: Liquid storage tanks, livestock feeders, and water troughs.
- Industrial: Tanks, bulk containers, storage bins, and machinery housings.
- Playground and Recreational Equipment: Playground slides, ride-on toys, and outdoor furniture.
- Construction: Barriers, road cones, and septic tanks.
- Consumer Goods: Outdoor furniture, coolers, and storage containers.
Examples of industries we serve:
- Automotive
- Agriculture
- Marine
- Industrial
- Playground and Recreational Equipment
- Construction
- Consumer Goods