Mechanical keyboard switches, custom linear silent switches with 1.9mm actuation point, 3.7mm bottom-out travel, 38g actuation force, Japanese-sourced silencing grease, and three-colour POM shaft core with soft silicone gel for quiet, smooth typing.
Mechanical keyboard switches, custom linear silent switches with 1.9mm actuation point, 3.7mm bottom-out travel, 38g actuation force, Japanese-sourced silencing grease, and three-colour POM shaft core with soft silicone gel for quiet, smooth typing.
Custom linear silent mechanical keyboard switches with Japanese grease and 1.9mm actuation
Engineered for a specific typing experience, these linear silent switches offer a direct path from keypress to bottom-out with minimal auditory feedback. The design philosophy centres on integrating specialised damping materials directly into the switch's construction. A key differentiator is the use of a special silencing oil, sourced from Japan, applied to the bottom of the exclusive 16mm XC55 spring. This targets and reduces spring resonance, a common source of noise in mechanical switches. Combined with a unique three-colour shaft core that merges POM with a soft silicone gel, these switches are built for a smooth, quiet operation suitable for shared offices, homes, or any environment where noise reduction is valued.
Features and Construction
The switch's performance is defined by measurable specifications and material choices. The actuation point is set at 1.9mm with a tolerance of ±0.3mm, providing a consistent trigger point, while the total bottom-out travel is 3.7mm (±0.3mm). The force curve is light, with an actuation force of 38g (±5g) and a bottom-out force of 55g (±5g), making it suitable for prolonged typing sessions.
Material and Build
The construction employs specific polymers for each component to achieve its goals. The shaft core is a composite piece, using a POM (Polyoxymethylene) body for its self-lubricating properties and low friction, paired with a custom-formulated soft and silent silicone gel that acts as an internal damper. The upper cover is made from POK polymer raw materials, chosen for its strength. The bottom shell uses a PA (Polyamide) base reinforced with GF C5 material, likely for added structural rigidity and stability within the keyboard housing.
Size and Practical Fit
The switches are built to standard mechanical keyboard switch dimensions, ensuring compatibility with most MX-style hot-swap sockets and PCBs. The 16mm single-section spring provides the specified force curve. The shaft body itself features a bridge plug-in structure secured by large buckles on both sides, a design intended to ensure a stable fit and consistent keypress alignment. The top cover incorporates a five solid patch lamp housing to accommodate SMD LEDs for per-key RGB lighting.
Uses and Placement
These switches are designed for users who prioritise a quiet, linear feel. Their application is broad, fitting into both custom-built keyboards and as replacements in pre-built models that support hot-swapping or soldering.
Event or Professional Use
In environments like broadcasting studios, open-plan offices, libraries, or during live streaming, audible keyboard noise can be a distraction. The integrated Japanese silencing grease and silicone-gel-damped core work to minimise the typical 'clack' of bottoming out and the 'ping' of spring reverberation. This makes them a practical choice for professionals where discreet equipment is beneficial, allowing for focus on the task without auditory interference to others.
Everyday Home Use
For home offices, gaming setups, or shared living spaces, reducing keyboard noise can significantly improve the ambient environment. The light 38g actuation force promotes a gentle typing style suitable for long work sessions or gaming marathons without causing excessive finger fatigue. The linear motion—devoid of a tactile bump—provides a consistent, smooth keypress favoured by many for both typing and gaming, offering a uniform feel across all keys.
Benefits and Buying Value
The value of these switches lies in their specific, source-supported technical approach to noise reduction and their defined performance parameters. They offer a pre-lubricated, custom-designed alternative to modifying standard switches.
Reuse and Low Maintenance
The switches arrive with the specialised Japanese silencing oil already applied to the spring, a step often performed manually by keyboard enthusiasts. This factory-applied treatment saves time and ensures consistency. The internal damping from the silicone gel is a permanent part of the shaft core construction, requiring no maintenance or reapplication over the switch's lifespan, offering a 'set-and-forget' solution for quiet typing.
Why Choose This Product
This product is for the user who wants a linear switch engineered for quietness from the ground up, not just a standard switch with added O-rings. The combination of the Japanese grease for spring noise, the POM-silicone composite core for internal damping, and the precise 1.9mm/3.7mm travel with light actuation force presents a cohesive package. It provides a specific typing feel and sound profile backed by clear material and specification choices, making it a considered option for those building or modifying a keyboard with quiet performance as a primary goal.
