Fabrication Semi-Automatic Screen Printing Line
High-resolution graphic screen printing ensures color accuracy, sharp legends, and uniform conductive ink circuit deposition.
Pioneering HMI Manufacturing
Dongguan Cevra Electronic Technology Co., Ltd.
Established in March 2009 in Dongguan, Guangdong, Dongguan Cevra Electronic Technology Co., Ltd. is an established custom manufacturer specializing in human-machine interface (HMI) solutions. We focus on engineering high-precision membrane switches, tactile metal domes, metal dome arrays, capacitive touch keypads, and graphic overlays for global industrial, medical, automotive, and appliance OEMs.
Built upon a strict ISO 9001:2015 quality management foundation and independently audited onsite by SGS Group, we maintain 100% in-house manufacturing capabilities spanning graphic design, cleanroom screen printing, CCD punching, automated dome placement, and comprehensive electrical testing.
Founded in 200916+ Years Experience
2,600㎡ FacilityModern Plant in Dongguan
ISO 9001 & SGSAudited Custom Manufacturer
Global ExportStrict European & US Standards
End-to-End Control
Our Integrated In-House Production Process
Every membrane switch, overlay, and metal dome array is processed through our tightly controlled production steps to guarantee absolute reliability and dimensional accuracy.
1. CAD Design
DFM engineering, circuit artwork, and stack-up review
2. Printing
Silk-screen graphic overlays & conductive silver tracks
3. Laser Cutting
Precision profiling and laser adhesive venting
4. Punching
CCD target drilling & hydraulic die embossing
5. Auto Assembly
Automated metal dome placement & lamination
6. Lab Testing
100% electrical circuit and dome actuation tests
7. Packaging
Anti-static dust-free packaging for worldwide transit
Factory Capabilities
Production Machinery & Testing Instrumentation
Inspect our comprehensive manufacturing lines and quality assurance laboratory equipment located in Dongguan, Guangdong.
Fabrication 
Fabrication Continuous Printing & Curing Line
Optimized temperature tunnels guarantee proper conductive paste bonding and eliminate ink resistance drift on polyester substrates.
Forming Precision Punching Workstation
High-tonnage precision punching machines for clean overlay embossing, tactile rim forming, and spacer layer blanking.
Forming Heavy-Duty Punching Press
Ensures tight tolerances for switch tail cutouts, connectors, and mounting holes across high-volume production batches.
Laser Precision High-Precision Laser Cutting
Toolless laser cutting allows rapid prototyping and precision cutting of complex outer contours without tooling lead time.
Laser Precision CNC Laser Cutting Machine
Optimized for burr-free cuts on PET, Polycarbonate, 3M adhesives, and acrylic display panels.
Registration CCD Optical Drilling Machine
Vision-guided optical registration drilling aligns printed multi-layer membrane circuits with micron-level accuracy.
Lamination Fully Automatic Laminating Machine
Bubble-free pressure-controlled roll lamination for overlays, adhesive spacers, shielding layers, and backer plates.
Lamination Automatic Film Lamination System
Eliminates air entrapment and ensures permanent adhesion of 3M 467/468MP adhesives under controlled tension.
Assembly Automatic Membrane Assembly Line
High-efficiency automated assembly line for precision positioning of tactile metal snap domes, LEDs, and sensor arrays.
Assembly Automatic Dome Placement Machine
High-speed pick-and-place equipment placing 4-leg cross and round domes on adhesive carriers with zero placement offset.
Packaging Cleanroom Final Packaging
Static-shielded individual packaging and shock-proof export cartons safeguard sensitive electronic panels in ocean/air freight.
Quality Control CCD Automatic Optical Inspection
Inspects printed graphic alignment, line continuity, pinholes, and color registration against digital master drawings.
Quality Control Electrical Parameter Testing Unit
100% verification of open/short circuits, contact resistance (typically <100Ω), insulation resistance (>100MΩ), and dielectric breakdown.
Quality Control Optical Inspection Station
Manual and magnified visual checks for surface scratches, graphic clarity, transparent window haze, and cosmetic integrity.
Quality Control Final Quality Gate Inspection
Dedicated quality engineers perform lot-by-lot AQL inspections prior to sealing products in protective vapor bags.
Quality Control Visual Inspection Instrument
Precision measurement microscope verifies silver circuit line widths, pitch spacing, and trace edge uniformity down to 0.05mm.
Quality Control 2.5D Optical Coordinate Measuring (Anime)
Measures physical 2D/3D profile dimensions, key center-to-center distances, and dome cavity depths to ensure enclosure fit.
Quality Control Fragment Load & Actuation Tester
Tests dome trip force, snap ratio, and actuation curves. Verifies consistent tactile feel across >1,000,000 key clicks.
Reliability Thermal Shock & Climate Chamber
Evaluates membrane performance under thermal cycling (-40°C to +85°C) and constant 95% relative humidity conditions.
Reliability Tension & 180° Peel Strength Tester
Tests adhesive bond strength between graphic overlay, circuit layer, and client housing according to ASTM D3330 standards.
Reliability Adhesive Holding Tack Tester
Measures shear resistance and long-term tackiness of 3M adhesives under sustained mechanical loads and elevated temperature.
Reliability Electric Pencil Hardness Tester
Quantifies scratch resistance of hard-coated PET/PC overlay surfaces (tested up to 3H) according to ASTM D3363 guidelines.
Engineering R&D & CAD Design Department
In-house electrical and mechanical engineers evaluate customer CAD files, proposing cost-effective stack-up solutions.
Engineering CAD/CAM Engineering Workstations
Equipped with AutoCAD, Pro/E, and graphic software to convert client concepts into manufacturing-ready film tooling within 24 hours.
Facility Automated Material Warehouse
Climate-controlled inventory storing Autotype PET, Lexan PC, genuine 3M/Nitto adhesive rolls, and stainless steel domes.
Quality Management System
Reliable Delivery Rooted in Engineering Discipline
How Dongguan Cevra Electronic Technology Co., Ltd. satisfies the stringent technical expectations of North American and European OEM procurement departments.
Certified Traceability
Compliant with ISO 9001 standard operating procedures. Every raw material roll (Polyester, Polycarbonate, 3M VHB/adhesives) is cataloged with batch certificates and supplier traceability records.
In-House Tooling & Prototyping
Our internal laser and optical drilling facilities minimize prototyping turnaround. Engineering prototypes can typically be submitted for client validation within 3 to 5 business days.
Rigorous Environmental Testing
Products intended for harsh operational environments undergo life-cycle testing in our thermal chambers, pencil hardness testers, and adhesion peel meters before mass dispatch.
Have an Engineering Drawing or Custom HMI Requirement?
Connect with our technical engineers at Dongguan Cevra Electronic Technology Co., Ltd. for prompt DFM feedback, stack-up optimization, and quotation.