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JA Precision-manufactured in Dongguan under ISO 9001 certified cleanroom protocols, ready for integration into European electronic enclosures, medical analytical consoles, and industrial automation control racks.
Founded in 2003 in Dongguan, specializing in turnkey membrane panel fabrication.
Class 1,000 / 10,000 screen printing, laser die-cutting and automated SMT placement.
Dedicated technical reviews for DXF/DWG/Gerber files matching European time zones.
Complete electrical loop, loop resistance, insulation and snap-ratio verification.
The metropolitan area of Lyon, recognized as the beating economic heart of France's Auvergne-Rhône-Alpes region, commands an extraordinary standing across advanced European manufacturing. From the biomedical hubs of Lyon-Gerland to the precision robotics corridors in Vénissieux, Villeurbanne, and the industrial automation zones spanning through Saint-Étienne and Grenoble, equipment builders demand Human-Machine Interfaces (HMIs) that survive aggressive chemicals, high-pressure steam cleaning, continuous mechanical actuations, and strict electromagnetic interference environments.
For French original equipment manufacturers (OEMs), Tier-1 electromechanical integrators, and design houses (bureaux d’études), sourcing custom membrane switches and control panels from China is no longer merely an exercise in piece-part cost reduction. It is a strategic requirement for agile prototyping, comprehensive stack-up customization, and rapid scalability. As an on-site verified manufacturer with over two decades of export leadership, Dongguan Ravo Electronics Co., Ltd. (Ravo) provides French procurement directors and hardware systems engineers direct access to end-to-end tooling, precision multi-layer screen printing, surface-mount component integration, and advanced polymer conversion without intermediaries.
By strictly maintaining compatibility with CE directives, RoHS 3 (EU 2015/863), REACH SVHC regulations, and electrical flammability standards (UL94-V0/HF-1), Ravo eliminates the friction of cross-border procurement. Whether supplying sealed graphic foils for medical centrifuges in BioDistrict Lyon or ruggedized tactile keypad assemblies for CNC cutting machinery across the Rhône valley, our engineering-first methodology guarantees repeatability across 1-piece pilot validation through to 100,000+ unit mass production series.
Serving the dense medical and life-science cluster located in Gerland and the greater Lyonbiopôle corridor. Medical HMIs demand absolute resistance to aggressive sanitizing agents.
Tailored for Lyon’s advanced mechanical workshops, automated packaging machinery, material handling equipment, and heavy industrial automation controllers.
Supporting rail transportation systems, smart grid power cabinets, EV charging stations (IRVE), and Rhône river maritime equipment requiring intense UV and thermal resistance.
Compare physical architectures, actuation behaviors, and component densities to optimize your electromechanical bill of materials before cutting production tooling.
| Circuit Architecture | Actuation Mechanics | Operating Life | Trace Pitch & Density | Optimal Enclosure / Application |
|---|---|---|---|---|
| Silver Printed PET Circuit | Stainless Steel Domes (Nickel/Gold plated) or Polydome | > 1,000,000 to 3,000,000 cycles | Standard pitch: 2.54 mm (minimum 1.0 mm spacing) | Industrial Standard CNC machines, general remote transmitters, commercial cooking appliances. |
| Flexible Printed Circuit (FPC) | Tactile Metal Dome or Elastomeric Silicone Core | > 5,000,000 cycles | High density: down to 0.5 mm ZIF pitch for tight headers | High Density Handheld medical instrumentation, aerospace navigation units, tight IP67 housings. |
| Rigid FR-4 PCB Backer | Surface-soldered tactile switches or metal dome overlay | > 3,000,000 cycles | Multi-layer PCB routing; full SMT passives & IC footprint | Self-Supporting Variable frequency drives (VFD), heavy industrial power inverters, automotive diagnostic consoles. |
| Capacitive Solid-State | Non-mechanical proximity & touch sensor pads | Virtually unlimited (> 10M touches) | Printed conductive silver / carbon loop antennae | Hygienic Cleanroom Hospital operating consoles, laboratory biosafety cabinets, vandal-resistant outdoor kiosks. |
| Thin-Film FSR Sensor | Dynamic pressure sensitive resistance variable matrix | > 2,000,000 mechanical compressions | Custom active sensing geometries (point / matrix array) | Force Detection Smart seating occupancy, hospital patient beds, robotics tactile gripping hands. |
Selecting the correct faceplate film determines the long-term field survivability of your human-machine interface. At our Dongguan plant, graphic overlays are reverse silkscreen-printed on the second surface, completely isolating inks, brand logotypes, and legend graphics from physical scratches, chemical cleaning wipes, and mechanical abrasion.
Polyester (PET, e.g., Autotex, Autoflex): Highly recommended for almost all Lyon industrial applications requiring embossed buttons or tactile metal domes. Polyester delivers superior tensile fatigue resistance, flexing over 5,000,000 times without key perimeter fracturing. In addition, PET boasts remarkable chemical resistance against machine cutting fluids, petroleum distillates, ketones, and industrial solvents commonly present in Auvergne-Rhône-Alpes manufacturing plants.
Polycarbonate (PC, e.g., SABIC Lexan): Offers exceptional optical clarity, ease of thermoforming, and flame-retardant certification (UL94-V0 rated). Polycarbonate is the material of choice for flat display filter windows with high light transmission (clear, smoked, or tinted windows for LCD, TFT, and 7-segment LED readouts). For harsh industrial use, hard-coated PC is utilized to boost scratch resistance from 1H up to 3H pencil hardness.
12,000 square meters of specialized cleanroom workshops, automated precision printing benches, and comprehensive electrical testing facilities located in Fenggang Town, Dongguan.
Fast-turn prototyping tooling constructed in-house. High-speed CNC plotting, steel-rule die creation, and precision laser cutting maintain contour tolerances down to ±0.05 mm for seamless fit within CNC-milled or plastic-injected front bezels.
Engineered sealing channels using genuine 3M high-performance acrylic adhesives (3M 467MP, 468MP, 3M 300LSE for low surface energy plastics, and VHB foam tapes). Tail exit points are isolated with encapsulated loop barriers to ensure true IP67 integrity.
Precision pick-and-place lines mount miniature 0603/0805 surface-mount LEDs, internal resistors, diodes, and phototransistors directly onto flexible PET silver traces or FPC circuits with anisotropic conductive adhesives (ACA) and UV-curing encapsulation.
Cross-border procurement without regulatory ambiguity. Every raw material batch entering our Dongguan plant is verified against current European Union chemical and electronic standards.
French hardware buyers operating within the Rhône-Alpes regional authority are subject to some of the world's most rigorous safety, environmental, and traceability regulations. When importing membrane switches and capacitive keypads into France, compliance documentation must be bulletproof to satisfy customs verifications, internal corporate audits, and third-party inspection bodies such as APAVE or Bureau Veritas.
RoHS Directive Compliance (EU 2015/863): All conductive silver inks, carbon resistors, dielectric spacers, LEDs, solder pastes, and mounting adhesives are completely free of lead, mercury, cadmium, hexavalent chromium, and phthalates (DEHP, BBP, DBP, DIBP). Full SGS or TÜV test reports are furnished with each first-article inspection (FAI) dossier.
REACH Regulation (EC 1907/2006): Ravo monitors the European Chemicals Agency (ECHA) Candidate List of Substances of Very High Concern (SVHC). We guarantee that no substance exceeding 0.1% weight-by-weight (w/w) is present in any delivered graphic overlay, spacer tape, or circuit tail.
Custom Overlay Language Localization: Graphic files supplied by your design team in Adobe Illustrator (.AI), CorelDRAW (.CDR), or vector PDF are printed with razor-sharp typography. French accent marks (é, è, ê, à, ç), specialized iconography conforming to ISO 7000 / IEC 60417, and customized Pantone PMS / RAL color standards are faithfully reproduced through high-density photographic emulsion screens.
Clear technical, commercial, and logistical clarifications addressing overseas membrane switch procurement from China into France.
We routinely ship under DAP or DDP Lyon (or standard FOB Shenzhen/Hong Kong). Express air shipments via DHL, FedEx, or UPS direct to Lyon Saint-Exupéry Airport (LYS) take 4 to 6 business days. For volume container production, consolidated sea freight entering through Marseille-Fos or Le Havre with onward rail transit to Port de Lyon Édouard Herriot requires 28 to 35 days.
Yes. Ravo specializes in agile rapid prototyping with zero mandatory MOQs (from 1 to 5 pieces). Utilizing digital plotting, precision laser cutting, and laser profiling, we deliver fully working functional prototypes for fit-checks, firmware testing, and CE pre-certification within 5 to 7 working days, without incurring full steel die tooling charges.
An IP67 rating is achieved by engineering a continuous closed-loop adhesive gasket (typically 3M 467MP or 3M 300LSE) around the panel edge, completely separate from internal air venting. For venting under atmospheric pressure differentials, we integrate microporous ePTFE Gore membrane vents that repel liquids while permitting air equalization, combined with encapsulated flex tail exits.
We provide gold- or tin-plated female crimp terminals with standard 2.54 mm (.100") pitch housings (FCI/Berg, Nicomatic, Amphenol Clincher), bare solder tabs, standard ZIF (Zero Insertion Force) contact fingers with polyimide stiffeners (1.0 mm and 0.5 mm pitch), or custom solder-mounted board connectors directly on FPC and PCB backers.
Colors are matched under standardized D65 lighting booths against certified Pantone Matching System (PMS) or European RAL palettes, verified by spectrophotometer (Delta E < 1.0). For LCD, OLED, and vacuum fluorescent displays, we print transparent color tints or anti-glare diffuser windows, alongside dead-front graphics that vanish until illuminated by internal LEDs.
Please submit your mechanical outline in DXF, DWG, or STEP format, graphic artwork in vector Adobe Illustrator (.AI) or vector PDF (with text converted to outlines), and a schematic or wiring matrix diagram specifying switch connectivity and LED polarities. Our engineering team returns a complete DFM report and firm pricing within 2 hours during active business shifts.
Connect directly with our senior application engineers in Dongguan. Send us your CAD drawings, graphic artwork, or product concept for an immediate manufacturing feasibility review, layer stack-up optimization, and factory-direct quotation.
