Operation:Mechanical, with haptic clickService life:Very highHygiene:Very easy to cleanDesign:IndividualIdeal for:Flat installation heights

Operation:Mechanical, elasticService life:Very highHygiene:Good, depending on button geometryDesign:IndividualIdeal for:Robust areas of application

Operation:TouchService life:Very highHygiene:Very good, closed surfaceDesign:IndividualIdeal for:Modern, clean look

Can membrane keypads be customized?

Membrane switches offer a high degree of customization. Size, shape, print, surfaces, lighting and connection options can be freely customized at. Transparent windows for displays, integrated LEDs or embossed key surfaces are also possible. The resultis an input system that fits perfectly into the design and functionality of your product. Design:The top layer of the membrane switch, the front foil, is screen printed. A wide range of colors according to RAL-classic,Pantone or HKS is available for this purpose. Special colors according to the customer CI, a disappearing effect or a metal look with mirroring are also possible. Mechanics:The size and shape of the membrane switch is fully adapted to the shape of the device. Key sizes and positions, installation andmounting options, even tolerance specifications can be customized. Electronics:In addition to the snap domes for the buttons, LEDs can also be integrated for individual lighting. The circuit diagram and theconnection (cable, plug, number of poles) of the membrane switch can also be customized. Integrated electronics assembly on acircuit board is also possible. Haptics:In addition to different surface structures of the front foil, additional embossing (surfaces, frames, symbols) or GT domes can improve theuser-friendliness.

How robust and durable are membrane keypads?

Membrane switches consist of several resistant polyester layers. Depending on the design and material, they achieve severalmillion actuation cycles per button. The closed surface provides reliable protection against mechanical wear, dust and dirt andensures constant functionality over many years.

Are membrane keyboards resistant to water, dust or chemicals?

Yes, membrane switches are particularly resistant to environmental influences due to their closed surface. Depending on thedesign, they can be manufactured to protection classes such as IP65 or higher and are therefore resistant to dust and moisture. Thepolyester films used are also resistant to many cleaning agents and disinfectants. This is whymembrane switches are also ideal for hygienic environments, such as food or medical technology.

Are membrane keypads also suitable for outdoor use?

Yes, membrane switches can be designed to work reliably outdoors. UV-resistantand temperature-resistant materials are used. In addition, protection classes and temperature suitability can be individually adapted so thatthe keypads remain reliably functional at operating temperatures from – 40 °C to 70 °C. Sufficient edge bonding, specialadhesives or additional seals make a membrane switch ready for outdoor use.

What is GT technology?

GT technology is a process developed by Hoffmann + Krippner for applying a dome-shaped, high-gloss plastic compoundto a film surface. GT stands for casting technology. The GT domes are mainly applied to key surfaces,to improve tactility and enable optimum finger guidance (for blind operation). The plastic material is extremelyresistant to mechanical influences. Pressure marks caused by hard objects can “heal” without leaving any residue.

What makes Hoffmann + Krippner special as a membrane switch manufacturer?

Hoffmann + Krippner has been developing and producing customized membrane switches “Made in Germany” for decades. Customers benefitfrom a unique combination of many years of experience, state-of-the-art production technology and individual advice. Eachkeyboard is tailored precisely to the requirements of the application – from design and feel to material selection and special protective andhygiene functions. Thanks to our in-house development and production expertise, we can guarantee the highest quality, short lead times andreliable series production.

Keys

Buttons are among the most classic and at the same time most versatile input options. They impress with their reliability, clear haptic feedback and numerous design options. Whether as a robust membrane switch, durable silicone switch mat or modern capacitive button – each technology has its own particular strengths and is suitable for different areas of application.

What key
technologies are available?

Different key technologies are used depending on the application. Membrane switches impress with their flat design and high robustness, silicone keypads offer a pleasant feel, and capacitive keys enable wear-free, modern operating concepts.

Membrane switches

Flat and durable design, can be individually designed and illuminated.

Silicone safety mats

Closed silicone surface with a pleasant feel.

Capacitive keys

Modern touch operation without mechanical wear.

Advantages of haptic buttons

Tactile feedback with a noticeable pressure point
Operation with gloves
High reliability in any environment
No accidental input by wiping or dripping
Clear structure and ergonomics
Durability in harsh environments

Where are haptic
buttons used?

Medical technology:

Reliable device operation with disinfectable surfaces

Mechanical engineering:

Robust control systems for production plants

Household technology:

Durable and visually appealing operating solutions

Building technology:

Panels for elevators, access systems and more

Button technologies in comparison

Feature

Membrane switch

Silicone safety mat

Capacitive keys

Operation

Mechanical, with haptic click

Mechanical, elastic

Touch

Service life

Very high

Hygiene

Very easy to clean

Good, depending on key geometry

Very good, closed surface

Design

individual

Ideal for

Flat installation heights

Robust areas of application

modern, clean look

Muster live erleben

Jedes Projekt erfordert eine präzise abgestimmte Lösung. Unsere Muster geben Ihnen Einblicke in Beleuchtungsmöglichkeiten, Oberflächenveredelungen und Haptiken. Jetzt kostenlose Muster sichern.

Alle Leistungen auf einen
Blick – hier PDF downloaden!

Buttons or touch – which
technology suits my project?

Touchscreens offer flexible, individually
customizable user interfaces and enable
a modern, intuitive user experience.

Haptic buttons impress with their durable,
reliable technology with clear tactile feedback and
manageable acquisition costs.

Start your project!

New development or redesign?
We are your partner from prototype to series production.

Hoffmann + Krippner GmbH & Co KG

BUSINESS HOURS:

Keys

What key
technologies are available?

Advantages of haptic buttons