Materials

A question of the material

Overview of the materials used by VERMAY

Messgerät für Stellfüße

Depending on the intended use, different materials can be used in the manufacture of adjustable feet, machine feet and furniture feet, each of which has different properties and therefore also has different advantages and disadvantages.

Messgerät für Stellfüße

SCREWS OR THREADED SPINDLES

Galvanized steel

Galvanized steel is steel to which a coating of metallic zinc has been applied by one of several different processes. Steel components are coated with a 50-150 µm thick zinc layer by dipping into a liquid zinc bath in discontinuous galvanizing, hot-dip galvanizing or batch galvanizing.

The steel electro-galvanized with a coating thickness of 5-8 my and is blue chromated (gal.Zn.8 bk Cc). Application: Preferably for indoor use on machines, equipment, etc. that are not exposed to high levels of humidity. Working temperature: -40°C to 180°C

Stainless steel

According to EN 10020, stainless steel is a designation for alloyed or unalloyed steels with a special degree of purity, e.g. steels whose sulfur and phosphorus content (so-called iron companions) does not exceed 0.025% (by mass). Choosing the right stainless steel is important in many engineering applications to produce durable, low-maintenance products.

FOOT PLATES, COVER CAPS

Galvanized steel

Galvanized steel is steel to which a coating of metallic zinc has been applied by one of several different processes. Steel components are coated with a 50-150 µm thick zinc layer by dipping into a liquid zinc bath in discontinuous galvanizing, hot-dip galvanizing or batch galvanizing.

The steel electro-galvanized with a coating thickness of 5-8 my and is blue chromated (gal.Zn.8 bk Cc). Application: Preferably for indoor use on machines, equipment, etc. that are not exposed to high levels of humidity. Working temperature: -40°C to 180°C

Chrome-nickel stainless steel

Chromium-nickel steel contains both chromium and nickel, and is commonly known as 18-10. The chromium content is 18 percent and the nickel content is 10 percent, hence the name "eighteen".

The Chrome-nickel stainless steel is rust resistant and has very good chemical properties. Application: humid and corrosive environments; applications with high hygienic requirements (food, chemical and pharmaceutical industries); electronics industry (due to its antimagnetic properties). Working temperature: -70°C to +430°C dry or +120°C in water.

polyamide

Polyamides (PA) are polymers and are part of the thermoplastic group. They are characterized by the amide group in the repeating units. Well-known trade names for polyamide fibers include nylon and Perlon®. Nylon stockings, toothbrush bristles, fishing lines, carpets, dowels and cable ties are all made from polyamide (PA).

The polyamide has good mechanical properties such as high strength and good impact resistance. It also has good thermal stability and chemical resistance. Application: Indoor and outdoor Working temperature: -40°C to 120°C.

Inlays

Rubber

The rubber raw material is obtained from rubber trees. Today, however, producers mainly use synthetic rubber. Not all rubber is the same. There are numerous products that the industry develops specifically for different areas of application. Chemists speak of elastomers or elastomer products. Although rubber is a commonly used term, it is somewhat imprecise. This often leads to misunderstandings in the retail trade. Customers often assume that latex refers to a product made from natural rubber. This is not always the case: latex is simply rubber in liquid form, says the German Rubber Industry Association. And rubber can be produced both naturally and synthetically.

The NBR Rubber (Perbunan) has proven its worth in particular where the requirements for abrasion resistance (vibrations etc.) and resistance to diluted or concentrated acids, oils, greases etc. are very high. Application: Indoor and outdoor Working temperature: -35°C to 100°C Flammability: according to UL 94: HB.

Wool felt

Wool felt is a special type of felt. This felt is made from sheep's wool. It is called fulling or press felt. The wool is first cleaned and combed. It is then processed into fleece. If necessary, the raw wool may also have a dyeing process. The felt is then produced by mechanical fulling, which causes the raw material to become firmly bonded. The fibers of the fleece are randomly intertwined. Of all the animal wool products, sheep's wool is the one that works best with this felting process because it has a scale-like surface. During the fulling process, the tiny flakes of wool interlock with each other to form a strong surface for the fabric.

Used especially for delicate floors: laminate, parquet, marble, linoleum, etc.

POM

Polyoxymethylenes (abbreviation POM, also known as polyacetals) are thermoplastics with a high molecular weight. Used primarily for injection molding, these colorless, semi-crystalline polymers are used to make molded parts. Polyoxymethylenes are used for the production of precision parts. Their high stiffness, low coefficient of friction and good dimensional stability make them ideal for this application. An unbranched acetal group (~C-O-CH2-O-C~) is the characteristic structural element. The homopolymer produced from formaldehyde is known as POM-H and has the structure -(CH2-O-)n (oxymethylene groups). In addition to the -(CH2)m-O- units with 2 or 4 methylene groups, the copolymers (abbreviated as POM-C) have numerous acetal groups. They are used for thermal stabilization of the polymer. POM-C has properties similar to POM-H.

POM is mainly used for "dull" floor coverings, carpets, etc.

PU soft

Polyurethanes (abbreviation PUR; also known as PU) are plastics or synthetic resins. They are formed by the polyaddition reaction of dialcohols (diols) or polyols with polyisocyanates. The urethane group is characteristic for polyurethanes.
Diols and diisocyanates lead to linear polyurethanes. Cross-linked polyurethanes can be produced by reacting triisocyanate-diisocyanate mixtures with triol-diol mixtures. The properties of PU can be varied over a wide range. Thermosets, thermoplastics or elastomers are obtained depending on the degree of crosslinking and/or the isocyanate or OH component used. In terms of quantity, polyurethane foams are the most important, as flexible or rigid foam. However, polyurethanes are also used as molding compounds for compression molding, as casting resins (isocyanate resins), as (textile) elastic fibers, polyurethane coatings and as polyurethane adhesives.

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