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surface technologies for medical devices

creating the perfect solution for medical devices
Every day, medical and healthcare professionals work to protect the health and lives of their fellow human beings. But when doing so, they need to be able to rely fully on their medical equipment and instruments. High-quality industrial hardening, vacuum brazing and coatings play a key role in ensuring that this requirement is met.

Our innovative technologies are vitally important in preserving the sterility of implants, medical instruments and components for medical systems, helping healthcare professionals comply with the strictest hygiene standards.

quality in every respect

Modern medical technology sets the highest standards for tribology, durability and biocompatibility, as well as for the degree of purity of coated medical devices. At Aalberts surface technologies, we also fulfil highly complex customer requirements and specialize in the functional refinement of components for medical technology systems, and products for orthopaedic and surgical applications.

smooth, non-scratch and chemical-resistant surfaces

High-quality solutions applied to the surfaces of medical instruments and devices prevent the formation of harmful germs. To achieve this, the following properties are indispensable:

  • because it is easier for dirt to stick to uneven surfaces, the surface structure must be virtually free from pores and extremely smooth.
  • soiling can be removed easily and without leaving any residues when the surface possesses non-stick properties.
  • extremely hard and scratch-resistant surfaces help maintain the properties for longer.
  • efficient corrosion protection increases the longevity of components.
  • as medical devices need to be sterilized with corrosive substances, it is imperative that the surface is highly resistant to aggressive chemicals.
  • the surface coating must securely adhere to the substrate.
anodizing and hard anodizing

In medical technology, aluminum has a very high utility value as a basic material or alloy, due to its low weight. During anodizing and hard anodizing, the surface finish grows into the workpiece. Despite the low process temperatures, these processes – which occur with precisely defined dimensional changes – create extremely strong bonding forces between the surface finish and the basic material.

HART-COAT®, our hard-anodized coating characterized by extremely fine pores, offers exceptionally high durability, excellent resistance to corrosion, and hardness values of up to 480 HV0.025.

HART-COAT® is used in a range of applications, including to coat fixed-angle rotors of microliter centrifuges. These devices can be found in blood banks and clinical laboratories, where blood and other bodily fluids are centrifuged. In the research area, these centrifuges are used for the extraction of DNA, proteins and enzymes. For weight reduction purposes, fixed-angle rotors are manufactured from aluminum alloys. With a thickness of 40 µm, this hard-anodized layer protects components against corrosion.

an extremely resistant coating

Pre-treatment with our SILA-COAT® dip coating ensures more than 1,000 hours of corrosion resistance in the salt spray test. The dielectric strength exceeds that of most hard-anodized layers.

When combining SILA-COAT® with an anodized layer, it is possible to create an extremely resistant surface finish, which is able to withstand acidic and alkaline cleaners in around 1,000 cleaning cycles.

One example is sterile packaging, such as implant and instrument containers. While the container frame consists of plastic, the housing, the inserts and the plates are made from aluminum alloy. In this case, resistance to alkaline cleaning media is more important than resistance to wear and tear.

When it comes to the surface coating of medical devices, we go even further by using our own patents and high-performance processes:

  • Plasma-chemical finishing of magnesium and aluminum materials
  • Chemical nickel plating of ferrous and non-ferrous materials, which are ideal for combined coatings involving PVD
Angular rotors for microlitre centrifuges. The aluminum body is protected against corrosion by a HART-COAT® coating.
Technically anodized injection buttons: The injection buttons are made of a high-strength aluminum alloy, which has a technical anodizing coating as tarnish protection and to protect against skin perspiration. The injection buttons of the different pens have a different texture (rough or smooth), which facilitates recognition. The coating with technical anodizing with its thin layer thickness supports these tactile surfaces.
Dental turbine with titanium-look combination layer of electroless nickel and PVD-titanium: coated head housing with titanium sleeve (top), head housing with electroless nickel coating (DURNI-COAT®) plus subsequent titanium layer (centre), head housing brass blank (bottom).
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we know our customers’ needs

We want our customers’ projects to run smoothly, which is why we adapt our concept to your requirements. With almost 60 years’ research and experience into surface technologies and providing professional advice, we are dedicated to finding a solution to your problems. And with branch offices from Europe to Shanghai to Chicago, we are always close by.

applicable processes

Sub-zero treatments Cryogenics
Phosphating Phosphating
Thermal spraying Thermal spraying
CVD CVD
vacuum coatings Vacuum coatings
powdercoating Powder coating
GLISS-COAT Anti-friction coatings
Polymer coatings Polymer coatings
wet painting Wet painting
zinc flake coating Zinc flake coating
heat treatment eindhoven Nitrotec®
SELGA-COAT Selective coatings
heat treatment eindhoven Stainihard®
Antifricor Deurne Electroplating
plasma chemical coating Plasma chemical coatings
aalberts surface technologies IVD process Chrome cadmium substitute
Induktivhärten Induction Hardening
Kammerofenlinie Precipitation / Age Hardening
nanocoatings Nanocoatings
Nitrierofenlinie Gas Nitriding
plasma nitriding & stainitec Plasma/Ion Nitriding
Nitriding furnace Nitrocarburizing
solution annealing Solution Annealing
Beladung Kammerofen Hydrogen Annealing
anodizing Anodizing
anodizing Hard anodizing
Sealing Sealing
Vacuum Brazing Vacuum brazing
Carbonitriding Carbonitriding
heat treatment Atmospheric Carburizing
low pressure carburizing Vacuum Carburizing (LPC)
Salt bath carburizing Salt Bath Carburizing
Electroless nickel plating Electroless nickel plating

relevant process locations

get in touch
Select your preferred process location or contact us directly.

get in touch
heat treatment

Birmingham

United Kingdom
52.5108198-1.8767323 info.birmingham@aalberts-st.com +44 121 322 2280 show location
heat treatment

Blackburn

United Kingdom
53.7642256-2.4548116 info.blackburn@aalberts-st.com +44 1254 264901 show location
heat treatment

Letchworth

United Kingdom
51.9887569-0.2038797 info.letchworth@aalberts-st.com +44 1462 472100 show location
heat treatment

Telford

United Kingdom
52.7205556-2.4701772 info.telford@aalberts-st.com +44 1952 677372 show location
heat treatment

Värnamo

Sweden
57.176705814.0107878 info.nordic@aalberts-st.com +46 370 69 09 90 show location
heat treatment

Werther

Germany
52.085558.42509 info.werther@aalberts-st.com +49 5203 97405 show location
polymer

Lübeck

Germany
53.8989610.79366 luebeck@aalberts-st.com +49 451 39006 0 show location
polymer

Lüneburg

Germany
53.245976910.4758467 lueneburg@aalberts-st.com +49 4131 882 10 show location
polymer

Nidda

Germany
50.42982898.9779735 nidda@aalberts-st.com +49 6043 9613 0 show location
heat treatment

Remscheid

Germany
51.22193897.2353813 info.remscheid@aalberts-st.com +49 2191 56200 show location
heat treatment

Soudan

France
47.7059027-1.3208699 info.soudan@aalberts-st.com +33 228040600 show location
heat treatment

Thyez

France
46.07632076.5266973 info.thyez@aalberts-st.com +33 450 3463 98 show location
heat treatment

Gaildorf

Germany
49.01621959.7588191 info.gaildorf@aalberts-st.com +49 7971 96980 show location
HIP I brazing I additive

Goffstown (New Hampshire)

United States
42.9936399-71.5222791 info@accuratebrazing.com (603) 945-3761 show location
HIP I brazing I additive

Greenville (South Carolina)

United States
34.8319956-82.2940535 info@accuratebrazing.com (864) 213-9310 show location
heat treatment

Greenville (South Carolina)

United States
34.8039732-82.3394456 +1 864-288-9111 show location
surface treatment

Kaufbeuren

Germany
47.91376710.6489502 kaufbeuren@aalberts-st.com +49 8341 6601 0 show location
heat treatment

Kehl

Germany
48.500157.82006 info.kehl@aalberts-st.com +49 7854 96470 show location
surface treatment

Kerpen

Germany
50.88076.6800999 kerpen@aalberts-st.com +49 2237 502 0 show location
surface treatment

Kirchheim-Heimstetten

Germany
48.151143811.7440283 muenchen@aalberts-st.com +49 89 990241-0 show location
polymer

Landsberg am Lech

Germany
48.068575810.8542243 landsberg@aalberts-st.com +49 8191 91186 10 show location
heat treatment

Laupheim

Germany
48.229769.83458 info.laupheim@aalberts-st.com +49 7392 70960 show location
surface treatment

Helpfau-Uttendorf

Austria
48.168118113.1232299 uttendorf@aalberts-st.com +43 7724 44144 show location
heat treatment

Amboise

France
47.41544421.0245775 info.amboise@aalberts-st.com +33 247 2374 74 show location
heat treatment

Anderstorp

Sweden
57.265275813.615284 info.nordic@aalberts-st.com +46 371 58 71 70 show location
HIP I brazing I additive

Manchester (Connecticut)

United States
41.8003737-72.5057255 info@accuratebrazing.com (860) 432-1840 show location
heat treatment

Dunningen

Germany
48.2249668.5003521 info.dunningen@aalberts-st.com +49 7403 92907-0 show location
heat treatment

Eindhoven

the Netherlands
51.47035245.419001 info.eindhoven-heat@aalberts-st.com +31 40 266 3000 show location
polymer

Eindhoven

the Netherlands
51.43406225.4346575 eindhoven@aalberts-st.com +31 402 5076 07 show location
show all locations
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We offer all types of heat treatment processes. Our facilities are closely interlinked in terms of logistics, which means that all processes are available to you. For a complete list and description of heat treatment technologies please select the button.

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