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Metal Dome

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    Metal dome OEM factory Custom Special Shape Metal Dome for various keypad switch

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    Metal Dome Working Principle

    Working Principle : The snap dome is located at the conductive part on the PCB (most of which is above the gold finger on the PCB). When pressed, the central dimple of the dome is concave and contacts the circuit on the PCB , Thus, the circuit is formed, and the current passes through, and the whole product can work successfully . With the help of the conductivity of the metal metal, it plays a role of high-quality switch between the operator and the product. The stable click ratio & longer life-time are used to provide the operator with high-quality tactile feel

    Metal Dome

    Round Metal Dome :it’s normally used in the electronic devices with small volume due to less space demand , also has good advantage in the feature of feels 、force and longer lifetime .

    Oblong Metal Dome :is almost used for any products which round metal dome used , which shape is cutting off 2sides from round snap dome , when design area is too small to place round shape , it can use oblong snap dome insteaded .

    4-Legged Metal Dome : when designer reserve sufficient space & request bigger stroke travel , C-series metal dome will be prior to select to use , it’s often used in the handheld device、medical device and large banking equipment .

    Triangle Metal Dome : Under the conditions of small designed space、requested good feels & must meet bigger pressing force , Triangle shape will be the best option , also it’s divided into w/feet or w/o feet , and it’s decide by PCB thickness & assembly method .

    Metal dome Customized:Normally , Metal dome(snap dome) can be divided into round, 4legged, triangle, Oblong and other special-shaped .  Accept to custom METAL DOME as per different requirement such as its special required Size , Specification . if any further demand you need for , please feel free to contact with us , Guanghongda Technology .


    Product Model Specifications Surface Treatment Parameter Force(gf)
    Diameter Trip Height Service Life
    Round 0/1/4/5 Dimple Gold,silver nickel plating 3-10mm 0.14-0.19 ±0.05 0.21-0.25 ±0.03mm >100k times 100gf-500gf
    4-Legged 0/1/4/5 Dimple Gold,silver nickel plating 4-20mm 0.23-0.28 ±0.05 1.40-1.70 ±0.03mm >100k times 100gf-600gf
    Oblong 0/1/4/5 Dimple Gold,silver nickel plating 4x2.88mm ~5x4mm 0.15-0.23 ±0.05 0.21-0.29 ±0.03mm >100k times 100gf-250gf
    Triangular

    Long foot /short foot /no foot

    Gold,silver nickel plating 3.15-12mm 0.15-0.19 ±0.05 0.21-0.25 ±0.03mm >100k times 200gf-600gf
    Irregular Special shape Gold,silver nickel plating According to the customer's needs, it can be customized
    Note: all kinds of metal shrapnel can be customized according to the design specifications

    Metal Dome Application

    Metal Dome is mainly used for various key products、such as mobile phones、headphones、MP3 / MP4、all kinds of keyboard、remote control、bank Product keys、medical equipment、industrial instruments and other fields, where there are keys to use products, can use metal dome

    METAL DOME FLOW CHART


    F A Q

    Q1: Are you Trading company or manufacturer ?

    A: We are a Professional Trading & Manufacturer Integrated .

    Q2 : Can you offer OEM Service ?

    A: Surely Okay , we have Seasoned OEM service experience .

    Q3: what is the Lead time of sample ?

    A : It takes 2-7working days depends .

    Q4: How fast can i get the Quotation ?

    A: 30mins ~ 24Hours depends .

    Please do not hesitate to contact with us , if you have any inquires .

    Products

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  • +86 18922844993  0755-27903569
  • sales@metaldome.com
  • ADDRESS:SZ Office :# 1407, Building G, Hualian City Panorama, XinAn Street , BAOAN AREA , Shenzhen
  • HZ Factory :5 Yuanhui Road, Chenjiang Street , ZhongKai High-tech.,Dist., Huizhou
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