Question and answer about plastic injection moulding


What is injection moulding?

Injection moulding is a process used to produce plastic products or shaped components. The technique involves melting plastic granules and injecting them into a production mould under high pressure. The molten plastic takes on the shape of the cavities in the mould. The plastic is then cooled until is solidifies again. After that, the product or shaped component is released from the mould and further assembly can take place as needed. HSV TMP offers various injection moulding techniques that give you complete freedom to create any shape at all for the design of your product.

What are the steps in the injection moulding process?

To take your product concepts and turn them into tangible products, a number of steps are involved before actually starting production. There are four phases in the process, during which our engineering department engages in constructive brainstorming with you to figure out the best way to make your product. This approach allows you to improve the quality of your products – and can also help you achieve considerable savings. You can read more about the injection moulding process on the product development page.

What does injection moulding cost?

Every injection-moulded plastic product is unique. Before creating your products, shaped components, housings or other plastic parts, we first offer an indication of the costs. This cost estimate involves looking at a number of factors: the size of the product, the dimensions of the mould, the quantity, type of plastic, and the injection moulding technique that will work for the specifications of your product, and so on. Injection moulding offers interesting advantages, and can help you achieve savings in many areas. Request a cost overview for product realisation of your plastic product concept or shaped component.

What is the Plastic QuickScan?

The Plastic QuickScan answers whether it is possible to have a product produced in plastic – and if so, what type of plastic and which technique would be most appropriate for your specific application. The QuickScan gives you insight into what plastic injection moulding would cost for your product and how long it would take to produce.

What is cascade injection moulding?

Cascade injection moulding – or sequential injection moulding – is a variation on high-pressure injection moulding, in which the plastic is injected into the mould through various openings (nozzle entry points). However, instead of injecting the molten plastic all at once, valves are used to inject the plastic in a specific sequence.

What is high-pressure injection moulding?

High-pressure injection moulding is the most common technique used to handle thermoplastic materials. This method involves melting plastic granules into a thick liquid, and then injecting the molten plastic into a tempered mould under high pressure.

What is Project+?

Project+ consists of product combinations based on particle foams and injection-moulded components made of hard plastic. Assembly becomes much easier when injection-moulded components made of hard plastic are integrated with particle foam components – and that achieves direct cost savings.

What is thermoplastic injection moulding?

Thermoplastic injection moulding, also referred to as low-pressure injection moulding, can eliminate some potential side effects of high-pressure injection moulding. In thermoplastic injection moulding, a chemical blowing agent is added to the plastic granulate which is activated when the plastic is melted. The foam injected into the mould continues expanding until the plastic solidifies. This technique ensures that the internal pressure on the cooling plastic is evenly distributed, reducing internal tension inside the finished product.

Plastic Quickscan

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About us: Introduction

Are you looking for a partner who can support you with the development of your plastic products due to practical experience? At HSV TMP we have decades of experience in the development of plastic components and a wealth of knowledge when it comes to the materials and techniques required.


Company profile

An increasing number of designers and purchasers are opting for plastic

HSV TMP is one of Europe’s leading companies when it comes to manufacturing large plastic products. At our factories in Ede and Leeuwarden we develop and produce innovative housings, fittings and other components for customers in a diverse range of sectors.

Company profile
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Our history and organisational structure

The history of HSV Technical Moulded Parts (HSV TMP) can be traced back to the foundation of our sister company, HSV Moulded Foams. This company – like HSV TMP now a separate division of the HSV Group – started manufacturing EPS packaging at a production location in Ede in 1968.


Core Values

How we do business

We are convinced that our customers not only work with us because of the products we supply, but also because of the way we do business. We have broken down this approach into 4 core values.

Core Values

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