China Factory Double Chain Window Opener 800-1000n Heavy Duty Competitive Price

China Factory Double Chain Window Opener 800-1000n Heavy Duty Competitive Price. Double Layer Metal Chain: Ensures stable and smooth operation with enhanced durability. High Thrust Force: Delivers up to 600N thrust and 2000N static locking force. Long Service Life: Tested for over 50,000 push-out and pull-back cycles. Wide Stroke Range: Adjustable stroke from 200mm to 1000mm for various window sizes. Rebound Function: Reduces deformation of aluminum material and extends sealing strip life. Overload Protection: Built-in safety feature prevents damage during operation. Customizable Colors: Multiple color options available to match design requirements. OEM & ODM Support: Factory direct customization for thrust, stroke, color, and control solutions.