What is rotational molding?

Rotational molding is a process for manufacturing plastic parts using hollow molds that rotate simultaneously on two perpendicular axes. Thanks to heat and rotation, the molten plastic material coats the mold walls uniformly, creating seamless, robust and homogeneous parts. Let’s take a look at how the rotational molding process works.

01

Filling the polymer into the mold

A precisely measured quantity of polymer powder, tinted to the desired color, is added to a steel or aluminum mold, adapted to the dimensions and requirements of the part to be manufactured.

02

Rotational merging and shaping

Once the mold is sealed, it is rotated simultaneously on two perpendicular axes while being progressively heated. Under the effect of heat and gravity, the molten polymer powder adheres to the mold walls, melts and spreads evenly to form a uniform layer inside the mold.

03

Stabilization and solidification

During this stage, the rotating mold is gradually cooled, allowing the molten polymer powder to solidify and permanently fix the shape of the molded part.

04

Demoulding the part

Once solidified, the part is demolded, ready for use or finishing if required. The mold is then prepared for a new production cycle.

05

Finishing and conforming

After demolding, the parts are deburred, trimmed and shaped to ensure compliance with the intended dimensions and shapes. This step ensures that each part reaches its final geometry before any further use or transformation.

Why rotational molding?

Rotational molding isn’t just a process, it’s a technology that offers unique advantages in product design. Rotational molding is a smart solution, combining flexibility, performance and cost-effectiveness, ideal for functional, customized, durable and optimized parts.

Economic benefits

Flexibility and speed of production
Low tooling costs
Competitive process
Highly flexible

Technical advantages

Variable thickness
Overmolding of inserts
Wide color palette
Great freedom of design

Material advantages

Natural antibacterial properties
Impervious to fluids and gases
High strength and durability

Rotomolded parts: unrivalled flexibility for a wide range of applications.

Rotational molding offers unparalleled design freedom, enabling the creation of durable, functional products for a wide variety of uses.

Leisure and sports

Slides and playground equipment
Outdoor fitness equipment
Playground accessories

Street furniture and parks

Outdoor seating and tables
Recycling garbage cans and containers
Play modules for children

Nautical industry

Boat consoles and interior fittings
On-board tanks
Floats and buoys

Agriculture and equipment

Vats and troughs
Livestock feed bins
Trolleys and wheelbarrows

Environmental management

Recycling bins and litter garbage cans
Rainwater harvesting tanks
Sewage and wastewater treatment

Construction and public works

Safety barriers
Construction storage tanks
Lane separators

An infinite number of applications

Solutions for every industry.

Did you know that rotational molding offers unique advantages?

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