Difference between Part design and Product design.

We see that in the market there is some confusion between part design and product design, for that reason we would like to spend some time on this topic. When it comes to part design a rotational moulder is primarily concerned with efficiently manufacturing parts to fulfil orders focused on maximizing profit and productivity. Of course with meeting all parameters concerning a well-designed rotationally part (such as draft angles, kiss-offs, tolerances in accordance with industry standards etc.). For design specialists the overall product is less important, as well as factors like performance, marketing success or ergonomic consideration (Michael Paloian).
In the contrary when it comes to product design a rotational moulder is primarily concerned with the product. Normally, the moulder is focused on several parameters of which costs, performance, ease of assembly, appearance are examples.

The differences explained.

Part designThis differences can be found in the education and experience  of an industrial designer and a product. Industrial designers emphasize user comfort, appearance, product branding, colour and graphics versus how efficiently a product will be moulded.  A product design engineer is more focused on product performance, structural integrity, regulatory compliance and ease of manufacturing. A product designer, depending on the complexity of a product, may or may not have the required knowledge to design every part of the product.

Designers with specific technical expertise are required.

Mr. Paloian suggests that it is hard to find product designers that are competent for part design as well as for product design. A successful product requires a comprehensive design to satisfy marketing and sales criteria, in which a well-designed product optimized for rotational moulding together with a product that is functional, has high quality that can be produced efficiently. Rotational moulding companies are required to recruit designers with a specific technical expertise to attain the customer goals, and not naively oversimplified the parameters associated with a product they are not skilled in.

The industrial designers of Pentas Moulding.

The industrial designers within Pentas Moulding are besides product designers also trained in the knowledge and principles of rotational moulding in order to oversee the overall image. Early in the product design stage we create together (if necessary) with the client the part or full product (by means of CAD) in order to create a qualitative good plastic product that fits the requirements of the customer.


Source: Michael Paloian, integrated design systems. Rotoworld June-July 2013