This time, JD Jing Zao has collaborated with Kailh to jointly create a custom MX-structure linear switch—the Tianji switch. The switch features a traditional four-clamp design for a secure and tight fit. It includes an independent arc-shaped light guide column, ensuring even and bright backlighting. The switch utilizes an extended stem for earlier bottoming out, with a total travel distance of 3.4±0.4mm and an actuation travel distance of 2.0±0.5mm. The core guide is designed with a conical bottom, resulting in a crisper sound upon actuation.
The Tianji switch has an operating force of 45±5gf and is equipped with a factory-lubricated extended dual-stage spring. This setup eliminates unwanted noise and provides strong, responsive rebound. The dual-stage spring offers a distinct tactile feel, delivering noticeable press feedback and a clearer actuation experience. This enhances the overall hand feel and reduces the likelihood of accidental key presses, resulting in a better user experience.
The Tianji switch housing uses POM self-lubricating material for both the top and bottom covers, while the stem is made from Kailh's newly developed POK material. This combination offers excellent wear resistance, smoothness, and self-lubrication, ensuring a seamless typing experience without any sticking. The switch is designed to withstand over 70 million keystrokes.
The Tianji switch is featured in JD Jing Zao's J75Pro tri-mode mechanical keyboard. The keyboard employs a leaf spring gasket and five layers of sound-dampening padding, providing an exceptional tactile and acoustic experience. It also includes a high-quality alloy multifunction knob and is available in two color options. This combination offers users a triple feast for touch, sound, and sight.