high quality Screen Printing Dome Membrane Keypad

Brand:aa

Product detail:

high quality Screen Printing Dome Membrane Keypad  

 

Product information :

• Our product made by advanced technique and technology
• Custom's logo and designs acceptable.
• Offer SGS,ISO9001:2000 certificate.
• OEM & ODM projects are highly welcomed. We have strong R&D team here to help.
• We can help choose different materials to ensure the products perfectly and safely according to customers’ requirements.
• Application: office,medicine,food,cosmetics,,appliances,crafts,stationeries ect.
• Packaging: standard export carton (disposable, aseptic, bio-degradable, recycled ) . 

Product details :

This type is somehow similar to single layer type by means of metal dome contacts attached under Maylar. But the difference is that, in this type, the Spacer is attached under the metal dome contacts. Air paths which function like air holes in single-layer, helps provide good click-feeling when dome contacts are pressed. Besides this effect, air paths help reduce the chance for

PET film being damaged by metal dome contacts' burr and block dust coming into PET films.

1. Overlay materials:

A variety of overlay materials are used in membrane switch appliactions. Different material performs differently. Often, Matte PC (smooth), gloss PC + matte oil, gloss PC, PVC and PET(Polyester) are more suggested.

 

2.Adhesive: 3M9448, 3M9080, 3M467, 3M468 etc..

 

3. Tactile feedback for button switches:

For obtaining a good feedback from the buttons, there are usually two methods to make it.

A. Raising certain areas of the graphic overlay by tooling can be offered --Poly Domes. And the shapes and styles of the embossing can be various flexibly. Common hard-tooled embossing types include: Ring embossing, pillow embossing and dome embossing .

B. Adding extra parts on the switch to get the crisp effect--Metal domes. Metal domes can be provided in several different sizes according to the switch size.

 

4.Cut-outs

For some products, it needs holes and cutouts to meet its final application. Usually, these cutouts are achieved by laser cutting machine and hard tooling punching.

 

5. Flat flexible cable

As a keypad, it is usually required to have conductive performance. It is the circuit called in the membrane industry. it can be flexibly designed on a polyester sheet with silver conductivity printed. Also it can be copper etched for a better stability in the performance

 

1.Electronic characteristics
Circuit rating	35V (DC), 100mA, 1W
Contact resistance	10Ω~500Ω (According the trace length and materials)
Insulation resistance	> 100MΩ 250V DC
Contact bounce	≤ 5ms
Dielectric withstand	250VRms (50~60Hz 1min)
Life expectancy	flat type≥ 5 million times, tactile type≥ 1 million times
2.Mechanical Properties
Actuation force	flat type: 57-284g (2-10 Oz), tactile type: 170~397g (6~14 Oz)
Switch stroke	flat type: 0.1~0.5mm, tactile type: 0.6~1.5mm
3.Environmental parameters
Operating Temperature	-40°C~+80°C
Storage temperature	-40°C~+85°C
Humidity	40°C, 90% ~95%, 240 hours

 

 

How to proceed order:

 

 

 

 

 

 

 

• shipping by air, by sea,by express ;
• goods will be ready within 2weeks after receiving the payment ;
• pictures or the producing process will be send to you then ;
• If you choose way of express-ready product pictures and tracking number will be provided to you after goods dispatched.

ABOUT US :

• Your inquiry related to our product & price will be replied within 24hours.
• Well-trained & experienced staff are to answer all your inquiries in English of course.
• Our products include : Various self-adhesive labels, roll label, printed labels, serial number stickers, bar code labels, thermal labels, transparent labels, PVC/PC/PET/PP plastic labels, gold/silver foil label, laser labels, removable labels, price tags Crystal epoxy sticker, epoxy dome sticker, PU dome sticker, cartoon sticker, laser sticker, widow sticker, static sticker, glitter sticker, fluorescent sticker, nail sticker, mobile phone sticker, 3D sticker, gold/silver trim sticker, PVC/PC/PET plastic sticker ;
• OEM & ODM projects are highly welcomed. We have strong R&D team here to help.
• Our products are exported to Europe, North America, South America, Africa, many countries in Asia, all the world. 
• Good after-sale service offered, please get back if you got question.

Please feel free to contact us for details, welcome!

 

 

More product pictures :

 

 

 

 

 

Production machinery and equipment :