Archive for the ‘Metal Dome’ Category

How to design the actuators of Silicone?

Wednesday, November 2nd, 2016

As we know, the silicone with actuators always design above the metal dome. But how to design the actuators? As it will affect the click feeling of metal domes.

CMD Manufacture recommends that the bottom of silicone with flat actuators, the size should not exceed 25% of the diameter of metal dome, and it must be in the center of the metal dome.

The unreasonable design for actuators will directly affects the metal dome click feeling, and will affect the quality of end-products. So at the beginning of design, if you are not very familiar, please contact us and we will give a reasonable design.

20mm large diameter four-leg metal dome

Monday, August 25th, 2014

20mm large diameter four-leg metal dome is that the diameter can reach to 20mm. Do you need this item?

Now we have this item tooling and success to produce 20mm four-leg metal dome. The most popular force is 450g,with one revised center dimple. If you need the more information about this metal dome, please contact us for the specifications and drawing. Below is the picture of this item:
20mm-four-leg-metal-dome

Several factors affect the quality of the metal dome

Tuesday, July 29th, 2014

In today’s society, there are a lot of customers are not well know the metal dome,just know more cheaper more better. But this is actually one of the biggest mistakes, so we should see several factors affect the quality of the metal dome .

Metal dome is an important part used in membrane switch, PCB boards and other products, has played an important role in conducting circuit, when you press, the line will be turned on, when you release it will automatically disconnect. If the metal dome has a problem, it will affect your product, or even a brand of your company’s. So I would like to tell you to pay attention to the following items:

1, The metal domes life:

Nowadays there are a lot of metal dome life is not up to standard, four-leg only 200,000 times to 300,000 times, the price is relatively cheap, but life can be achieved in the 500,000 to 1,000,000 times we make, and round metal dome, like 4C, C5 small dome, domestic only 700,000 to 800,000 times life, the price is relatively low. Our C4, C5 can react to 1,000,000 times.

2, The metal domes force:

Metal domes force is the most stringent requirements of foreign customers, that is speaking to each metal dome force is used to be uniform, can not have one high and one low and to be controlled at a certain tolerance (±30gf).

3, The metal dome material:

There are three kinds of material: domestic materials, South Korean materials, and Janpan material.  The metal dome biggest weakness is “Dead Key”. It’s very difficult to see which better from the appearance of the materials, we onlt can find the better from the testing.

4, The metal domes appearance:

When selecting metal domes, pay attention to the appearances if have dirt, scratches, grease, crushing, etc. ……

Our company is specialized in producing metal domes, our products have more than 80% of exports to the overseas marketing, and we have also opened the domestic customers in recent years. Our four-leg metal dome, life can reach 500,000 to 1,000,000 times, especially 4C, 5C round metal dome, has a real one million times life,and the force can be controlled within (± 15gf) range.

We are according to high-quality, high-service, fast-deliverytime, and good price for our customers. CMD Manufacture Co., Ltd. is a professional production of metal domes in China! ! !

Remote controller metal dome

Monday, June 9th, 2014

 

Remote controller metal dome is that the metal dome/snap dome is used in the remote controller as switch.

Remote controller dome arrays are general verylong, so it needs to set up tooling, but if your order quantity is small, we can make into two parts, it will save the cost of tooling.

Remote controller metal dome are generally use transparent material, round metal domes, here is the pictures:

Remote control

Remote Control2