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After a year, Klein Switch R2 is reopened after a modified mold. As a main smooth shaft, the shaft still continues to use P3 material.
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P3 material: P3 material is named internally by JWK, in fact, this material is a newly developed hybrid material, which is composed of a mixture of materials. Compared with the traditional POM, PA66, PC, etc., it has better smoothness, lower coefficient of dynamic and static friction. It also has more excellent self-lubricating properties, and its main component materials are known as "solid lubricant".
Because of its excellent self-lubrication, P3 has a lower coefficient of friction with other materials, such as POM, than with other materials.
Friction coefficient between P3 and PC material = 0.07
Friction coefficient of P3 and 7035 copper material = 0.09
Friction coefficient of P3 and PA66 = 0.06
The above is the coefficient of friction between P3 material and other materials, below I will list the coefficient of friction between POM and other materials.
friction coefficient between POM and other materials.
Friction coefficient of POM and PC material = 0.42
Friction coefficient of POM and 7035 copper material = 0.36
Friction coefficient of POM and PA66: 0.38
It can be found that the friction coefficient of P3 material can be 4-6 times better than that of POM, which is the main reason why Klein Switches is particularly smooth.
In response to the market feedback of Klein Switch R1, after opening the cover, the upper cover will have loose phenomenon, re-optimized the mold, the upper cover tighter, R2 has no need to add the switch pad, different from R1 and R2, the new version of the upper cover added our LOGO, Just like in following chart
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At the same time, is also received market feedback. r2 spring increased by 2mm. rebound becomes more powerful. Therefore, it is no need to change the spring.
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The following information is related to the switches.
Price.
Retail price: $0.75/pc
Spot opening price: $0.6/pc
Sales unit: box (35pcs/box)
Material.
Top housing: PC + other materials
Bottom housing: PA12 + trace 2 micron PTFE + MoS2 + other materials
Stem: P3 (mixed materials, UPE as the main material, other materials include but not limited to - POM, MoS2, PTFE, etc.)
travel.
Pre-travel: 2.0mmą0.3mm
Total travel: 3.7mmą0.3mm
Pressure.
Actuation: 48gą10g
Bottom out: 55gą10g
Spring.
Extended gold-plated spring
Metal contact leaves type.
Gold metal contact leaves
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Additional
As a JWK OEM high-end switch, it will be well lubricated. Especially because of the re-modified mold, the noise control will be better than before. But JWK factory lubrication as we all know, spring and leave sound is not guaranteed. If you are a user with high requirements for sound, we recommend re-lubricating these parts.
Finally, everyone is welcome to join the group to guide the work:
https://discord.gg/eYBJpC8Zbf