Core technology upgrades: First, main engine full suspension vibration reduction, the traction machine adopts full suspension rubber vibration reduction structure, combined with composite damping vibration pad, reduces the main engine vibration transmission rate by more than 95%, and reduces vibration noise from the source; Second, shaft fully enclosed sound insulation, the shaft wall adopts sound insulation damping plate, the guide rail bracket is equipped with vibration damping pad, and the shaft entrance and exit are provided with sound insulation seal to block the noise transmission path; Third, guide rail silent optimization, adopts high-precision cold-drawn guide rail, combined with self-lubricating guide shoes, reduces guide rail friction noise, no metal friction sound during operation; Fourth, car sealing noise reduction, the car adopts double-layer sound insulation structure, the inner wall is filled with sound-absorbing cotton, the car door is equipped with multiple sealing strips to isolate external noise, and optimize the car aerodynamic shape to reduce high-speed operation wind noise; Fifth, electronic control system mute, the control cabinet adopts silent contactor and filter reactor to reduce electromagnetic noise, and the control cabinet is equipped with sound-absorbing cotton to achieve machine room noise ≤35dB. This technology has been applied on a large scale, and the proportion of silent version of new machine-room-less residential elevators in 2026 has reached 65%.