



The FS-8400 STD Cam Action Floor Spring is a heavy-duty EN3-rated door control system designed for medium to high-traffic commercial spaces. Featuring a double-cylinder mechanism and cam action technology, it ensures smooth, controlled closing and long-term durability. Tested for 500,000 cycles and certified to EN 1154, UL, and CE standards, it offers reliable performance and corrosion resistance with a high-grade SS 304 cover. Available in multiple finishes including SSS, BM, Rose Gold M-PVD, Antique Bronze, Gold M-PVD, WD, Phantom Grey, and Tan Brass. UL & CE certified.
The FS-8400 STD Cam Action Floor Spring is a heavy-duty door control system engineered for medium to high-traffic commercial environments. Designed with a double-cylinder mechanism, it delivers exceptional durability, reliability, and precise door movement control. Built to EN3-rated closing force, this floor spring ensures smooth and consistent closing action, ideal for maintaining both safety and convenience in public and professional spaces.
Tested to 500,000 cycles, the FS-8400 STD is built for long-term performance in demanding conditions. Its cam action technology provides controlled and effortless door operation, minimizing resistance and ensuring silent, smooth functionality. With adjustable latching and closing speeds, users can fine-tune performance based on door type and installation requirements.
The floor spring is UL & CE certified and tested to EN 1154 standards, guaranteeing international compliance and performance assurance. Crafted with a high-grade SS 304 cover, it offers excellent corrosion resistance and a refined appearance suited for premium architectural projects. Available in multiple finish options — including SSS, BM, Rose Gold M-PVD, Antique Bronze, Gold M-PVD, WD, Phantom Grey, and Tan Brass — it complements a variety of interior and exterior design aesthetics.
Ideal for framed door applications, the FS-8400 STD combines strength, style, and reliability, making it a preferred choice for architects, contractors, and project managers looking for a durable, high-performance floor spring for commercial, institutional, or hospitality projects.
