1.Main Material and Technical Specifications:| Description | Technical Capabilities |
| Max. Size: | 1200mm*1000mm |
| Overlay Material: | PET: Auto-type
Autotex F150, F200, F280, V150, V200, V280, XEV150, XEF200
Autoflex EBG130, EBG180, EBG250, EBA130, EBA130, EBA250
Autostat CT3, CT4, CT5, CT7
DuPont etc.
PC: GE LEXAN-8010 8B35 8B35F HP92S HP40 FR700 FR60 |
| Spacer: | Double side adhesive tape: 3M, TESA, SEKISUI, Domestic adhesive tape |
| Back Adhesive: | 3M (mainly), Others |
| Solver Paste: | CHANGSUNG: CSP-3136, CSP-5150;
ACHESON: DE 725A (6S-61), ED 427SS, ED979SS, ED976SS, HV;
FUJIKURA AND OTTI |
| Oil Ink: | SEIKO, JUJO, DUBUIT, PROELL, NORCOTE UV |
| Carbon Paste: | FUJIKURA, ACHESON ED581SS, OTTI |
| 6 Layers Poly dome Type Membrane Switch Structure | Overlay + Spacer + Dome Retainer + Spacer + Circuit Layer + Back Adhesive |
| 4 Layers Poly dome Type Membrane Switch Structure | Overlay + Spacer + Circuit + Back Adhesive |
| Contact Resistance | 0.5-10 Ω |
| Insulation resistance | ≥10 MΩ |
| Base Material Voltage Durable | 2000 V DC |
| Bounce Time | ≤ 5 ms |
| Working Current | ≤100 MA |
| Working Voltage | ≤ 50 V DC |
| Life | ≥ 1,000,000 times |
| Key Travel | Flat type: 0.05mm-0.5mm, Tactile Type: 0.1-1.5mm |
| Working Temperature | -40 ºC - +80 ºC |
| Actuation Force | 20-550 g |
| Storage Condition | Temperature: -40 ºC - +85 ºC, Humidity: ≤98% RH |
| PET Circuit Tail Flexible Feature | 180° to any angle |
2.Basic Knowledge
What is a "Membrane Switch"?
A membrane switch is a printed electronic circuit that uses pressure to open and close a circuit. The membrane switch circuitry is most often screen printed using conductive inks, which are typically made of silver, carbon, and/or graphite.
Membrane switches are part of a range of devices considered to be user interfaces (also called operator interfaces, or man-machine interfaces) along with display-based touch screens, and mechanical switches such as push-button, toggle, rocker, and slide switches. The ultimate purpose of a membrane switch is to serve as the interface between man and machine, enabling an operator to communicate with a piece of equipment, instrument, or machinery.
Features & benefits of membrane switches include:
Completely sealed surface - easily cleaned and sterilized.
Low Profile - no crevices that can trap contaminants.
A cost-effective alternative - less costly than rubber keypad assemblies and capacitive touch keypads.
Thin profile - saves valuable space in your product design.
Easy to interface with existing controllers - no special electronics required, as with touch screens.
Versatile graphic interface - overlays can be screen or digitally printed with stunning, photo-quality graphic effects.
Protection by design - Easier to protect from UV radiation than rubber keypads.
Water-resistant designs - meets NEMA 4 and IP 67 specifications.
How Are Membrane Switches Constructed?
Membrane switches are essentially a sandwich of thin layers that are bonded together using pressure sensitive adhesives. Depending on the application requirements, a membrane switch will consist of as few as 4, and as many as 9 layers. In contrast to mechanical switches, membrane switches offer the advantage of lower cost, they consume less design space with their low profile, are easy to clean, and they offer a sleeker, ergonomic, and aesthetically pleasing appearance.
The visible top layer of a membrane switch is the graphic overlay, with printed circuitry underneath the overlay. The circuitry can also incorporate different layers such as polyester (silver flex), polyimide (copper flex), and rigid PCB layers. Activation of a switch occurs when a printed shorting pad or metal dome makes contact with the bottom circuit layer thus, closing the circuit.
What Industries Use Membrane Switches?
Membrane switches can be found in a variety of different industries. Medical instrumentation and laboratory equipment are ideal markets for membrane switches. These switches can be designed to be sealed from moisture and contaminants and with anti-microbial coatings to resist bacterial growth and harsh chemicals. Membrane switches are also utilized in industries such as electronic test and telecommunication networking equipment. Industrial controls and fitness equipment are also industries where membrane switches are the user interface of choice.
3. About Us
Shanghai Hombo Industrial Co., Ltd.
With ten years' experience of design and manufacturing in Membrane Switches and special printing product for electrical appliance industry, our Products are popularly used in household appliance, medical equipment, industrial control, telecommunication equipment, electronic instruments, intelligent toy and automotive industry. we are grateful for our work with more than 100 regular customers all over the world, it is their trust encourage us to assist our customers with better solutions.
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4. Contact Us
Mr. Chris Wang Foreign Trade supervisor
Mobile/: +86 18516744561
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Shanghai Hombo Industrial Co., Ltd.
Add: 9th Floor, No.35, Lane 800, Meijiabang Rord, Songjiang District,
Shanghai 201600, China
Fax: +86 21 67898089
Web: http://www.hombochina.com
Shanghai Hombo Co., Ltd. is currently located in Songjiang District of Shanghai, it specializes in providing printed products and related services to renowned domestic and multinational companies.
The company has been certified to ISO9001: 2008 Quality Management System. It is managed by a team of professionals and equipped with many innovative technologies from Germany, Japan, Taiwan and other areas of advanced technologies. In addition, our supply chain is supported by highly qualified and reputable suppliers.
Our main products include: Membrane switch & overlay, outdoor durable label & sticker, brand identity & nameplate, heat transfer printing, in mold label, food grade packing bag and more.
Our products are widely used in household appliances, industrial manufacturing, instrumentation equipment, food and medicine, daily consumption and other industries. We are an overall solution provider for product cover and printing. Our long term business partners include but not limited to Haier, Sharp, Ninnai, Foxconn, etc. Hence we play an important role in servicing these markets. Our company has been rewarded as a trustworthy international supplier that values creditability and contracts.
Hombo has always been emphasizing on the foundation of building and providing our customers with advanced technology, sophisticated, practical skills, and professionalism. It is our core belief to provide our customer the best possible products and services, because we realize that the only way to survive in the market place is to have quality, reputation and innovation in built in our foundation. Our task and responsibility is to achieve customers' satisfaction through continuous improvement our non-compromising attitude. It is these quality and mindset that drives us to where we are in China specialties printing industries and the world in the near future.
Hombo persistently focuses on adding values to customer products by creating brand values through advance printing technologies, and in turn helping customers to build a long lasting brand equity.
Hombo carries the burden for the success of its customers, markets, and society, and only through providing high quality services, innovative products and professional management methodology, we can grow together and pen down the success stories together.
"Our reputation lies on customer satisfaction" continues to be our company philosophy. And with this, we believe Hombo can be a good partner for all enterprises domestically and internationally.
