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APEM professional membrane switch panels
- Custom designed front panels
- Sealed, easy to clean
- Tactile feedback by snap dome or embossing
- Many options available: texture professional varnish, integrated components, prominent shapes, changeable legends, reinforced sealing…
Applications: instrumentation, medical, time management, weighing systems, vending machines, manufacturers of access control…
APEM, the broadest offering in the switch market: miniature switches, industrial switches, Light emitting diode indicators, professional switching panels and professional joysticks. |
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Bergquist's proprietary HeatSeal® membrane switches are custom engineered for use in environments where reliability is critical. The HeatSeal process thermally bonds switch layers together, providing a industrial seal that is impervious to moisture, temperature extremes and cleaning chemicals. Options include screened silver professional ink or PC board circuitry, tactile graphics, rim or pillow embossing, deadfront or translucent windows and more.
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We disign and manufacture membrane keypads and front membranes to meet your individual requirements - if necessary, integrated in supporting plates or pre-fitted on our enclosure.
Optimal quality can be achived for every use on the basis of copperlaminated supporting membranes or strip conductors applied using the silk-screen process.
Depending on your needs we can supply you with your own individual membrane keypad with fitted manufacturers of touch screens, professional displays and other electromechanical components.
Printing is by means of silk-screen or digital methods, according to the number of colours and the requirements in repect of visual design. Our membership of the specialist keypad association ansures that we are always ur-to-date with the latest technology, so we can always meet our customers' needs in the best possible way. The membrane keypad products which we market are components and are not subject to the ElektroG (the law relating to electrical and electronic equipment and applicances) or to the national laws or the WEEE/RoHS. Consequently we are under no obligation to register. |
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Customised membrane keypads
Extremely low profile (> 1mm)
With or without tactile feedback/snap-action disc
Integral LEDs/displays
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The standard line of polyester professional keyboards features all the experience and know-how of GRAFOS. The efficiency of this kind of products, meeting the needs of having a complete and ready to use product, is guaranteed under hard demand. They are available in several models - 33 to 104 keys version- and are used above all for applications of Industrial Automation. There are different models for different applications: from frame to panel version, from desktop to drawer version and finally rack version. Membrane keyboards promise a pleasant palpation feeling with tactile feedback, security and precision during the data input, also by the use with professional gloves; the polyester front plate is resistant against numerous chemical active substances. In the side photo an example of 87 keys frame version of reduced dimensions and, as pointing option, a plastic professional trackball.
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Customised membrane keypads
- Extremly flat profile (> 1mm)
- With or without tactile feedback/snap-action disc
- Integral LEDs/professional displays
Customised low profile industrial keyboards with RAFI short-travel keyswitches RACON 8/12 on RF15/19 in front panel under an overlay
- Good tactile feedback (click)
- Fully illuminated/spot illuminated
- Integration of displays and electronic compoments
- Integration of RAFI KN 19 main switches (250V / 4A) under an overlay
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User-friendly, flexible membrane switch industrial keyboards that are long-lasting (>6 million actuations), reliable and cost-effective.
The Clicktouch process produces a thermoformed polyester foil with “elastic” spring zones enabling extended key travel. Circuit layers are printed on polyester substrates with special silver, carbon and insulation links, with additional protection against oxidation provided by over-printing with carbon.
Advantages over conventional membrane and metal dome based keyboards:
•Significantly reduced contact bounce (<2 ms)
•Long key travel (up to 2 mm) providing improved tactile feedback (even when operated by someone wearing professional gloves, a clear click can be sensed)
•No metal parts, resulting in a longer switch life and greater reliability.
Clicktouch retains essentially the same ergonomic performance as standard mechanical push buttons, but is also:
•Dust-tight
•Water-tight
•Chemically resistant
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Professional keyboard No Dome
- no tactile feedback
- lifetime > 5 million switches (DIN 42 115)
- very thin (min thickness 0,6 mm)
- application : systems not very often used
- low budget
Keyboard with Plastic Dome
- a " click-effect" is created by transforming the frontfoil thermally
- lifetime > 5 million switches (DIN 42 115)
- very thin (min thickness 0,7 mm)
- environmental factors (cold - heat - sun - moisture) can influence the feeling of switching
- limited options
Keyboard with Metal Dome
- by installing a metal dome, a real " click-effect" is created
- lifetime > 5 million switches (DIN 42 115)
- very thin (min thickness 0,7 mm)
- the feeling of switching is not affected by environmental factors
- can be used directly on your PCB
- unlimited options possible
- can be used in combination with rubber keypads |
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Keyboards
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Electronic switches and controls are operated simply and comfortably by the use of membrane switches with highest functional safety - printed with the modern industrial screen printing technology.
Membrane switches excel due to their space-saving and compact construction, safe function, and last but not least by insensitivity to humidity and soiling. The boundless design possibilities are a further consideration. |
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Inks
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