Waterproof Dustproof Custom Membrane Keypad Switch
Autotex PET graphic overlay with continuous perimeter gasket sealing. Engineered for extreme IP67 outdoor exposure and chemical washdowns.
Technical SpecificationsManufactured under strict ISO quality standards to meet the exacting mechanical tolerances, environmental sealing, and dielectric requirements of the Swiss industrial corridor.
Autotex PET graphic overlay with continuous perimeter gasket sealing. Engineered for extreme IP67 outdoor exposure and chemical washdowns.
Technical Specifications
Integrated solid aluminum or carbon/silver grid barrier dissipating up to 15kV electrostatic strikes, safeguarding sensitive biomedical microcontrollers.
Technical SpecificationsTactile silicone rubber keymat coupled with electroluminescent or LED diffusion layers, providing uniform illumination across low-light operating rooms.
Technical Specifications
Surface-mounted miniature LEDs on silver conductive circuitry. Designed for embedded operator control consoles requiring immediate optical feedback.
Technical Specifications
Complex matrix trace multiplexing with UV dielectric cross-over insulation. Maximizes pin density while preventing ghosting in multi-key entry systems.
Technical Specifications
Equipped with gold or nickel-plated stainless steel metal domes providing crisp tactile snap ratio (40-60%) and rated for over one million duty cycles.
Technical Specifications
Light Guide Film (LGF) architecture channeling light from side-firing edge LEDs. Delivers whisper-thin illumination profiles under 1.2mm total thickness.
Technical Specifications
Certified environmental raw materials compliant with Swiss ChemRRV regulations. Balanced lumen diffusion ensuring zero hot-spots during critical night shifts.
Technical SpecificationsIn modern human-machine interface (HMI) engineering, the numeric keypad matrix remains the gold standard for deterministic, fail-safe input in mission-critical applications.
By routing $X$-rows and $Y$-columns across overlapping polyester substrates, an $N\times M$ grid compresses pin counts (e.g., a 16-key keypad requires only 8 pins). For high-speed data entry or concurrent multi-key commands, we engineer integrated surface-mount steering diodes into the circuit matrix. This suppresses current backfeed, completely eliminating phantom keystrokes or false switch registrations in precision laboratory controllers.
Silver paste migration presents a recognized failure mode under persistent electrical bias and atmospheric humidity. We mitigate this through selective carbon overprinting across all silver contact fingers and trace terminations. Furthermore, our proprietary low-curing silver ink delivers contact loop resistance below 100Ω across runs up to 300mm, ensuring reliable compatibility with low-voltage 3.3V CMOS and TTL microcontroller logic inputs.
Swiss engineers demand precise haptic feedback. We incorporate premium stainless steel domes (four-leg, round, or oblong) exhibiting snap ratios between 45% and 65% with actuation forces from 220g to 450g. Actuation dynamics undergo automated life-cycle testing exceeding 1,000,000 depressions without dome deformation, providing surgical instrument operators with definitive physical feedback even when wearing double-layered nitrile gloves.
The Lake Geneva region—widely celebrated as the heart of Switzerland's "Health Valley" and micro-mechanical research—demands human-machine interfaces that perform reliably under unforgiving technical and sterile constraints.
Biomedical innovators centered around Lausanne University Hospital (CHUV) and local research incubators deploy our numeric membrane matrices in hemodialysis monitors, automated centrifuges, and infusion dosing consoles. Featuring continuous flat surfaces, these switches withstand aggressive hospital-grade decontaminants such as Isopropyl Alcohol (IPA) and Hydrogen Peroxide vapor without graphic bleaching or liquid ingress.
Spinoffs from the École Polytechnique Fédérale de Lausanne (EPFL) Innovation Park require custom matrix keypads for spectrometers, cryogenic test equipment, and cleanroom vacuum controllers. Our low-outgassing optical adhesives, 3M medical-grade bonding films, and hermetic tail encapsulation prevent volatile organic compound (VOC) condensation inside optical measurement chambers.
Serving the Jura Arc and Vaudois precision machining industry, our tactile matrix keypads are installed directly onto CNC spark erosion controllers, automated pick-and-place watch assembly cells, and micro-welding stations. The rugged multi-layer construction resists lubricating cutting fluids, mineral oils, metal shaving abrasion, and ambient industrial airborne particulates.
Installed in alpine weather telemetry stations and automated water treatment monitoring networks along Lake Geneva, our UV-stabilized polyester overlays (tested for 5,000+ hours of continuous UV exposure under ASTM G154) withstand severe solar degradation, freezing thermal shocks (-40°C to +85°C), and continuous condensing humidity.
Compare standard and mission-critical grade parameters designed to streamline your Design For Manufacturing (DFM) verification and prototyping cycle.
| Engineering Parameter | Commercial Grade Specification | Swiss Precision / Medical Grade | Test Standard Reference |
|---|---|---|---|
| Overlay Substrate | Autotex F150 / Polycarbonate (0.175mm) | Autotex Steel / Medical Antimicrobial PET | ASTM D882 / DIN 42 115 |
| Circuit Conductor | Screen Printed Silver Paste (≤100Ω) | Silver Paste + Carbon Cap Overprint (≤20Ω) | ASTM F1689 |
| Contact Bounce Time | < 5 milliseconds | < 1 millisecond (Clean Debounce) | Oscilloscope Trace Analysis |
| Dielectric Breakdown Voltage | 1,500 VDC Min. | 2,500 VDC Min. (Multilayer Spacer) | ASTM D149 |
| ESD Attenuation Shielding | Carbon Print Grid (≤5 kV) | Solid Aluminum / Copper Ground Layer (≤15 kV) | IEC 61000-4-2 Level 4 |
| Actuation Force & Life Expectancy | 250g ± 30g / 500,000 Cycles | 350g ± 20g / >1,000,000 Cycles (Metal Dome) | ASTM F1578 |
| Ingress Protection (IP Rating) | IP54 Splash Resistant | IP67 / IP68 Continuous Immersion Sealing | EN 60529 / DIN 40050 |
| Tail Termination Pitch | 2.54mm Standard Female Crimp | 1.00mm / 1.27mm / 2.54mm ZIF or Amphenol Clincher | IPC-6012 |
As Industry 4.0 adoption accelerates across Vaud and the broader Swiss manufacturing landscape, mechanical interfaces must evolve beyond basic contact switches.
Swiss engineers increasingly specify hybrid interface architectures. Critical operations—such as emergency stops, precision offsets, and numerical parameter entry—retain mechanical metal domes for haptic certainty, while secondary adjustments integrate projected capacitive (PCAP) slide bars or ITO touch areas behind continuous glass or rugged polyester facings.
Traditional multi-LED arrays produce annoying luminance variations and hot-spots. Contemporary Lausanne medical device designers insist on thin-profile Light Guide Films (LGF) using side-emitting bi-color LEDs. Laser-etched micro-dots uniformly scatter light across individual embossed keys, eliminating operator fatigue in darkened operating theaters and analytical cleanrooms.
Post-pandemic healthcare standards require surface materials that resist degradation under hospital-wide quaternary ammonium compounds, chlorine bleach, and enzymatic cleaner routines. We formulate chemical-resistant hardcoated films with micro-textured surfaces that inhibit bio-film adhesion while preventing micro-fissuring under continuous stress.
Established in 1996 in Ningbo, Zhejiang, ZIRA Membrane Switch Co., Ltd. has developed into a premier OEM/ODM manufacturer of custom membrane matrices, silicone keymats, and flexible circuits. With continuous exports to Western Europe and North America, we serve global industrial leaders including ABB and Emerson.
Direct answers for sourcing specialists, hardware project managers, and quality assurance leads in the Canton of Vaud and surrounding cantons.
To initiate a comprehensive Design For Manufacturability (DFM) review, our engineering team requires vector artwork for the graphic overlay (Adobe Illustrator .AI, CorelDRAW .CDR, or vector .PDF) specifying Pantone or RAL color codes, and a dimensioned mechanical drawing (.DXF or .DWG) outlining cutouts, embossing profiles, key travel, tail length, and overall tolerances.
Additionally, please provide the circuit schematic or pinout mapping identifying the row/column matrix architecture, connector housing type (e.g., Nicomatic, Amphenol, or bare pitch flex tail), and any specific tail stiffener requirements. Physical reference samples from existing production runs are also gladly accepted for reverse-engineering.
Shipments to Switzerland are executed under Incoterms 2020 rules, including DAP or DDP (Delivered Duty Paid) to your facility in Lausanne, Renens, Yverdon-les-Bains, or surrounding zones. Because Switzerland eliminated industrial customs tariffs as of January 1, 2024, membrane keypads (HS Code 8537.10) enter duty-free, subject only to standard Swiss Value Added Tax (VAT / MWST / TVA).
We provide full commercial invoices, packing lists with net/gross weights, and Certificate of Origin documents complying with the Sino-Swiss Free Trade Agreement (FTA), ensuring seamless clearance through the Federal Office for Customs and Border Security (BAZG).
Yes. All raw substrates—including Autotex PET film, 3M 467MP/468MP adhesive laminates, conductive silver inks, carbon cross-overs, UV dielectric coatings, and connector housings—are 100% compliant with EU RoHS Directive 2011/65/EU (and its amendment 2015/863/EU), EU REACH Regulation (EC 1907/2006) Substances of Very High Concern (SVHC), and the Swiss Chemical Risk Reduction Ordinance (ChemRRV).
Comprehensive third-party testing declarations (SGS / Intertek certificates) are furnished with engineering samples and first-article inspection (FAI) documentation packages.
For custom prototypes and NPI (New Product Introduction) validation, lead times typically run 7 to 10 working days following final engineering drawing sign-off. High-priority rapid tooling options can produce initial working units even faster.
Serial mass production orders (ranging from 100 to 50,000 units) require approximately 14 to 20 working days depending on multi-layer complexity and surface-mounted component integration. Transit via air express (DHL / FedEx) to Geneva or Zurich airports takes 3 to 5 business days door-to-door.
To support high-tech startups, laboratory test benches, and EPFL spin-offs in their pilot development phase, we accommodate low-volume prototype builds starting at just 1 to 5 pieces. Standard commercial production orders typically start from 100 pieces.
Because film setup dies and printing screens are fabricated in-house, we deliver highly competitive tooling amortizations across both small-batch specialized instruments and scalable mass-production contracts.
For medical devices and precision analytical equipment subjected to strict EN 60601-1-2 EMC testing, we incorporate a dedicated, perimeter-grounded electrostatic discharge (ESD) shield layer placed immediately beneath the graphic overlay. Depending on the discharge threshold required, we employ either a continuous vapor-deposited aluminum film or a screen-printed conductive carbon/silver lattice.
This grounding plane channels static strikes up to 15kV away from internal microcontroller lines directly to the chassis ground, eliminating processor lockups and electrical component breakdown.
Whether you are designing a high-precision medical controller, updating horology automation consoles, or engineering laboratory diagnostic equipment in Lausanne, our technical engineering team will review your drawings, optimize your matrix stack-up, and provide a rapid DFM assessment within 24 hours.