Unlike door locks, crescent locks are specifically designed for PVC and aluminum alloy sliding windows, named for their crescent-shaped bolt. This lock utilizes a spring mechanism to achieve 180° or 360° rotation.
"3H Hardware • Harmony in Diversity" – We anticipate gathering with industry colleagues to explore the boundless possibilities of architectural hardware together! November 5-6, at Booth 202, Hall W1 – We look forward to welcoming you!
3H Hardware Architectural Hardware will seize this visit as an opportunity to continuously intensify technological innovation and intelligent construction, working hand-in-hand with the association to propel the high-quality development of the architectural door and window accessories industry.
Choosing reputable brands often provides more assurance regarding material quality and after-sales service. Although the initial investment might be slightly higher, the durability and reliability offered can prevent the hassle of frequent replacements in the long run.
Deeply understanding and strictly implementing their standard requirements is a wise practice for ensuring building safety at the source and fulfilling safety responsibilities. Equipping every fire door with compliant, high-quality hardware means adding a solid layer of protection to life safety passages.
100kg floor spring
3H INC.
Product Description
The floor spring is a hydraulic door closer. Because the worm gear can rotate forward and reverse, the floor spring can be used for doors that open in both directions.


1. Good shock absorption effect: Floor springs can withstand the gravity and vibration of heavy objects, thus playing a shock absorption role. Compared with ordinary shock absorbers, the shock absorption effect of floor springs is more obvious.
2. Good buffering effect: The floor spring can withstand a certain displacement and thus plays a buffering role. When natural disasters such as earthquakes occur, floor springs can reduce the impact on buildings and reduce losses.
3. Good durability: The floor spring is made of high-quality materials and has a long service life. Moreover, floor springs are usually not damaged by harsh natural conditions and are more durable.
4. Easy to install: The floor spring is very convenient to install and can be adjusted according to actual needs. It doesn't require extensive tools or skills to install.



Key Functions
1.Accurate Auto-Positioning: Our 100KG floor spring product category boasts precise automatic positioning, ensuring seamless functionality and optimal performance.
2.Consistent Quality: Committed to maintaining the highest standards of manufacturing and materials, you are guaranteed to receive a product that meets your expectations and exceeds industry specifications.
3.Smooth operation: Our 100KG floor spring product category is designed to provide smooth, seamless operation, ensuring doors open and close with ease.

About 100KG Floor Spring
Our exceptional 100kg glass floor spring--this innovative product is designed to enhance your space while ensuring maximum safety and convenience.
With its precise automatic positioning, you can trust that every move will be executed perfectly. No more worries about misalignments or uneven surfaces!
Rest assured, our glass floor springs guarantee superior quality and stability. It's crafted to the highest standards to ensure long-lasting, reliable performance you can count on.
Experience smooth, seamless operation with this floor spring that easily supports heavy-duty glass doors weighing up to 100kg. Its flawless functionality ensures that your door opens and closes with ease, providing a hassle-free experience for all.
Upgrade your space with our 100kg glass floor springs and enjoy the perfect blend of style and function. Enhance your surroundings while maintaining a safe and attractive environment. Trust the superior performance of our products and let them revolutionize the way you interact with your space.
