Regular maintenance is crucial for extending the service life of electric window openers. It is recommended to inspect the motor, wiring, and guide rails every three months, promptly removing dust and debris; avoid overloading; and regularly lubricate mechanical components to ensure smooth window operation.
Although door and window handles are small components, they directly affect daily usage convenience and safety.
3H Building Hardware will continue to uphold the development philosophy of "win-win cooperation and harmonious growth," focusing on advancing its expertise in door/window hardware and sealing systems.
3H Building Hardware remains steadfast in its belief: Only by staying true to our founding vision and consistently delivering both brand excellence and product quality can we secure market success and reputation. Moving forward, we will continue to uphold our artisanal craftsmanship, deepen R&D innovation, and refine our end-to-end service ecosystem. Through superior products and solutions, we aim to drive high-quality development in the doors, windows, and curtain wall industry, living up to the honor and mission bestowed by the AL-Survey Brand Awards.
This standard applies to common window types such as casement windows (inward or outward opening), top-hung windows, and bottom-hung windows.
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Factory Price Curtain Wall Automatic Locking Top Hung Window System Hardware Accessories
3H INC.
Item No. | MQS01 |
Size | maximum height and width of window sash can be up to 2m |
Application | Curtain wall window |
Load Bearing | 200kg |
Material | 304 stainless Steel |
Surface Treatment | Powder coating |
Color | handles' is customized,the other is natural |
Components | fork handle,pneumatic positioning stay,window frame locking part,multi-point locking rod... |
Function | automatic locking |
Package | Box |
Specification

Item No. | Item name | Remark |
1 | Fork handle | Optional |
2 | Connecting rob | / |
3 | Corner Device | / |
4 | Connecting block | Increase the lockable points in accordance with the regulation of window sash |
5 | Pneumatic positioning stay | Selection as per the regulation of window sash |
6 | Elevating block | / |
7 | Hung window friction stay | Non-hook top hung window should be installed with this product |
Product Description
1.Achieve the automatic locking function,under the influence of the certain forces,the pneumatic spring of pneumatic positioning stay can be contracted automatically,then,the window will be closed to prevent the window sash from damage and protect the public safety efficiently;
2.Adopting with the pneumatic positioning stay device which is with the hydraulic buffering function;
3.Adapting to the size of different windows by the configuration of the lock points, which can satisfy the customers’ requirements about door and window physical functions;
4.The maximum bearing load of single sash is 200kg,the maximum height and width of window sash can be up to 2m;
5.About the appearance,there are 32 kinds of standard color for selecting to satisfy the customers’ different requirement;
6.Suitable for hooked curtain wall top hung window.
