Rotational Molding Contract Manufacturing: When Large-Volume Hollow Bodies Become Economical and Design-Strong

When components get large, the math of many processes tips: tooling costs rise, logistics become more complicated. This is exactly where rotational molding contract manufacturing becomes exciting.

At Pallentin Industries, the focus is on demanding customer projects in rotomoulding engineering.

Rotomoulding Engineering: What Makes the Process So Special

In rotational molding, plastic powder is filled into a rotational mold and evenly distributed through bi-axial rotation under heat.

• Seamless (no joints like in welded constructions)
• Low-stress (robust against cracking)
• Economical for small to medium series

Pallentin Industries produces components up to 6 meters in length.

Large-Volume Hollow Bodies: Typical Applications, Real Advantages

'Large' is not just a dimension – it's its own category of requirements.

• Withstand impacts and continuous loading
• Endure UV and weather influences for years
• Remain tight, dimensionally stable and logistically manageable

• Tanks, containers, housings, covers
• Technical hollow bodies with inserts/threads
• Large-format design objects (furniture, architectural elements)

Rotational Mold Design: More Freedom for Geometry, Surface and Color

A real USP in rotomoulding is the design freedom.

• Surface structures directly from the mold
• Special effects and color concepts (e.g. RAL colors)
• Double-wall construction and complex geometries

Especially for premium products, this is a game changer.

Contract Manufacturing with System: More Than Just 'Part Out'

Rotational molding becomes particularly strong when manufacturing + services work together.

• Assembly & sub-assemblies directly after demolding
• Just-in-time deliveries and optimized logistics
• Direct shipping to end customers

Sustainability in Rotomoulding: Thinking in Cycles

Rotational molding offers good starting points for cleaner material cycles – through the return of plastic residues into the production cycle.