Manufacturing processes

At HAMCO, we rely on modern manufacturing processes that enable us to deliver high-quality products efficiently and reliably. Our manufacturing processes include three key procedures:

that Immersion process for the manufacture of round and square PVC dip moulded parts,
which Coating by immersion for the production of a PVC protective layer on predominantly metallic components,
that Injection moulding process for the fully automatic and semi-automatic production of plastic moulded parts.

In addition to these core competencies, other manufacturing-related processes such as pad printing the economically attractive manufacture of plastic products with tailor-made properties to meet the individual requirements of various Industries to meet the needs of our customers.

Immersion process - Versatile solutions made from soft PVC

The Immersion process is a Strength of HAMCO. Using this process, we produce a wide range of different Standard and special submerged parts from our Soft PVC Covytec material series which are characterised by their flexibility, chemical resistance, temperature stability and composition. Immersion parts such as Round caps, pull-off caps, Rectangular caps, Edge protection or Handles come in different Industries in use – from the Automotive industry, about the Wire and cable industry until Medical technology.

Thanks to the protective and insulating properties of PVC The submersible parts are ideal for industrial applications where Corrosion protection, protection against UV rays and weathering, mechanical resilience and ease of handling during installation. HAMCO also offers customised special solutions that are precisely tailored to the requirements of the intended use – whether it's special colour requests, special material properties, customised dimensions or printing.

Residue-free from heat transfer media

Our PVC immersion parts are manufactured using a salt-free heat transfer system – completely free of lithium nitrate or potassium nitrate – for Maximum purity and safety.

The results are Particularly clean, dimensionally stable and durable PVC round caps meet the highest quality standards – manufactured in an environmentally friendly manner, while also improving occupational safety and simplifying disposal.

Even more detailed information about the coating process

For interested purchasers, designers and technicians we provide even more detailed knowledge and further helpful information about the Production of coatings available on the linked product page.

Injection moulding: Precise plastic moulded parts from a single source

The Injection moulding process is another important manufacturing process at HAMCO, which is carried out by our In-house toolmaking is optimally supported. Working together, this enables us to produce large quantities of plastic moulded parts precisely and economically. Thanks to our modern injection moulding machines and handling equipment, we are also able to efficiently produce complex geometries. The process generally offers a high degree of flexibility in terms of geometry and material selection. Our Advice prior to commissioning helps to ensure that individual customer requirements, such as the subsequent printing of moulded parts using the pad printing process, can be met.

We have compiled a list of the materials we use most frequently. Material lexicon which provides you with an initial overview of the basic properties and how they differ from alternative materials.

pad printing process

The advantages at a glance

Soft silicone pad enables precise, detailed printing, even with small logos or fine lines
Excellent adaptation to irregular shapes
Good adhesion results on the soft PVC surface of dipped parts and coatings
Economical for all quantities
Fast and reproducible

The pad printing process, also known as tampoprint, is very well suited for printing on round, curved or flexible surfaces of soft PVC dipped parts and PVC coatings.

In pad printing, the ink is transferred from an engraved printing plate (referred to as a cliché in our offers) to the curved surface of the Immersion parts or the Coating or the sheathing or rubber coating.

The print motif, e.g. a company logo, text or operating instructions, is etched or lasered into the printing plate (a thin steel or polymer plate) as an indentation (engraving).

In the first step, the cliché is coated with ink. A squeegee removes the excess ink so that only the ink in the engraved recesses remains.

The silicone tampon, which is lowered onto the cliché, picks up the ink, which has been slightly „dried“ to create a sticky surface, from the engraving.

We use single- or two-component pad printing inks with special soft PVC plasticiser resistance.

The ink is then transferred to the PVC part or PVC coating by pressing the pad lightly onto the surface to be printed and leaving the ink there after lifting it again.

For soft PVC, a solvent-based printing ink is usually used, which briefly swells the PVC surface. The ink merges slightly with the soft PVC, so to speak. The solvents then evaporate and the printed ink layer hardens when air-dried or dried with moderate warm air (e.g. 50–60 °C). The result is a very well-adhering print, which can be further improved by adding a hardener if necessary.

Surface pre-treatment is not necessary with the W-PVC Covytec formulations we use.

Quality management according to ISO 9001:2015

To ensure our high quality standards, HAMCO is certified in accordance with ISO 9001:2015, which guarantees that all key operational processes are monitored, documented and scrutinised. This enables us to continuously improve our processes and make them more efficient.

In addition to process optimisation, an important aspect of the standard is the focus on customer satisfaction - we are constantly working to make our products and services even better for you!

Your advantage with HAMCO

diverse manufacturing processes for a wide range of products and solutions
Expert advice and know-how: we find the optimum solution
Quality, flexibility and speed from a single source
State-of-the-art technology and many years of experience
Close cooperation with our customers for customised solutions
Production in small series, large series and as individual deliveries
Standard items or customised special solutions - quotation within 24 hours
Delivery usually within 14 days of order

Do you have any questions or special requirements? Feel free to contact us! Our team is at your disposal to realise your projects together and support you from planning to implementation.

Contact HAMCO now

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