Heavy Duty Single Chain Window Opener for Building Ventilation

Heavy Duty Single Chain Window Opener for Building Ventilation. Customizable Stroke: Stroke ranges from 200mm to 1000mm to fit various window sizes. Multiple Color Options: Available in various colors to match different window styles. High Durability: Tested for over 50,000 cycles with a thickened precision casting material. Safety Protection: Features overload protection and a rebound function to prevent damage. Low Noise Design: Double-layer metal chain ensures stable and quiet operation. Versatile Application: Suitable for top-hung, bottom-hung, casement, skylight, and center-hung windows. Smart Control: Supports Wi-Fi remote control with adjustable on/off timing. OEM/ODM Support: Factory direct customization for thrust, stroke, color, and control solutions.