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Metal shrapnel belong to metal stamping parts (also known as pots or metal dome, snap dome), the use of ultra-thin (0.05mm-0.1mm thickness) and ultra-thick (generally high hardness) made of stainless steel 301 or 304 material. Metal shrapnel is an important part of the switch. Metal shrapnel is mainly used in membrane switch, contact switch, PCB board, FPC board, medical equipment and other products.
The working principle of the metal shrapnel: The metal shrapnel on the thin film key is located on the conductive part of the PCB (most of which is located above the gold finger on the circuit board). When pressed, the center of the shrapnel is concave and touches the line on the PCB , Thus forming a loop, the current through, the whole product will be able to work properly.
General conventional metal shrapnel, according to their different shapes are divided into: round metal shrapnel, cross-shaped metal shrapnel, triangular metal shrapnel, oval metal shrapnel. Diameter from 3mm to 20mm, the intensity from 100g to 600gf range. Of course, if you have a special request by your drawings to make it, there is no problem.
There are also according to the requirements of the resistance of the guests, our metal shrapnel also have nickel, silver, gold and other different surface treatment











Materials


steel/brass/aluminum/copper/stainless steel/alloy/carbon steel




Thickness


0.15-5mm(please send me your drawing)




Size


Customized(according your drawing)custom type 




Color


Customized as you like 




Finished


Polished/Paint/Plated/Powder Coated/Sand Blasting/polishing/electroplating/oxidation




Tolerance


+/-0.05mm




Approach


Stamping/Punching/Bending/Welding/deep drawn












FAQ:


Q1. What is your terms of packing?


A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, 


we can pack the goods in your branded boxes after getting your authorization letters.


Q2. What is your terms of payment?


A: TT/ Paypal/ Western Union .


Small amount 100% TT payment . large amount T/T accept 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages  before you pay the balance. 


Q3. What is your terms of delivery? 


A: EXW, FOB, CFR, CIF,


Q4. How about your delivery time?


A: Generally, it will take 7-10 days sample time. 15 to 25 days after receiving your advance payment. The specific delivery time depends on the items quantity and the quantity of your order. 


Q5. Can you produce according to the samples?


A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures. 


Q6. What is your sample policy?


A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.


Q7. Do you test all your goods before delivery?


A: Yes, we have 100% test before delivery


Q8: How do you make our business long-term and good relationship?


A:1. We keep good quality and competitive price to ensure our customers benefit ;


2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from


Q9: Your are a trade company or producer?


Our company is factory ,have our self machines,Design, research and development, production. 








Why Choose us ??


1. We have 15 years customized-order mechanical parts  experience


2. Have our factory can be control quality & delivery time 


3.We have our self mold Can be customized you want size and design 


4. Can be visit our factory 


5. professional company & team & production facility will be More guaranteed,welcome inquiry or order to us. 





Metal Stamping parts image 











Certification



http://www.dgsymetal.com