Our method

With over 50 years’ experience and more than 700 different plastic products, our method makes for a well-oiled machine. We can make anything up to a diameter of 2,500 mm and a length of 4,000 mm. Will you challenge us?

The well-oiled machine

  • step-icon1
    Phase 1: Drawing up the Programme of Requirements

    In order to define the development, it is important to draft a Programme of Requirements (PoR) that your product will have to meet. Read more »

  • Phase 2: Conceptualisation

    The concept focuses on integrating functions and producibility as a plastic rotational moulding product. This phase results in the delivery of one or multiple concepts with a motivation and testing of the concepts against the PoR as well as a substantiation with design sketches.

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    Phase 3: Analysis

    A risk analysis will be conducted in consultation with yourself. We will test whether the choice of material is suitable for your requirements.

    Read more »

  • Phase 4: Engineering (Detailing of the design)

    Detailing of the plastic rotational moulding product is an important phase before we can proceed with mould construction and automation. Read more »

  • step-icon5
    Phase 5: Mould and automation

    Based on your final 2D and 3D CAD drawings of the plastic rotational moulding product, Pentas will start development and mould construction. Read more »

  • Phase 6: Production

    Before Pentas takes your plastic rotational moulding product into mass production, the product and the process will have to be approved. Read more »

  • Phase 7: Finishing and assembly

    This extension of the production of your plastic rotational moulding product requires associated steps to validate the process. Read more »


Team Pentas consists of 130 people with a passion for technology, which means there is always someone who believes we can do things more efficiently. We welcome this with open arms and are not afraid to implement fundamental changes. But only if it leads to more efficient operations that benefit our clients.



We prevent design errors with FMEA and the product is tracked throughout the process with our own ERP systems. During the production process, we continuously check the quality. And if a deviation from the drawing occurs, we solve it at the source. As you can see, we are ISO 9001 certified for good reason.



We are highly driven to produce as sustainably as possible. That is why we monitor the environmental performance of our processes on a continuous basis. Almost all residual streams are recycled. And we innovate constantly to make our products stronger, lighter and more sustainable.