FS-8400-S STD SSS - Cam Action with Closing Force EN3 Double Cylinder with Stronger Spring Inside
The FS-8400-S STD SSS Floor Spring is a heavy-duty, EN3-rated cam-action unit with a stronger internal spring for smooth, precise door control. Suitable for framed doors up to 80 kg and 950 mm wide; cycle-tested to 500,000 operations and certified to EN 1154, UL & CE. Adjustable closing and latching speeds allow fine-tuning, and multiple finishes (Antique Brass, Gold M-PVD, BM, SSS) match diverse design styles.
- Application: Framed doors
- Maximum Weight: 80 kgs
- Maximum Width: 950 mm
- Compliance: EN 1154 tested
- Material: High-grade SS 304 cover
- Finish Options: Antique Bronze, BM, Gold M-PVD, Satin Stainless Steel (SSS)
The FS-8400-S STD SSS is a heavy-duty floor spring engineered for framed door systems in commercial and institutional settings. With its EN3-rated closing force, this unit handles frequent use with ease, providing reliable control for medium- to high-traffic environments. The addition of a stronger internal spring enhances closing performance, especially under heavier loads or continuous use.
Featuring a cam-action mechanism and a double-cylinder design, the FS-8400-S ensures smooth, consistent, and durable operation while reducing effort and wear. Both latching and closing speeds are fully adjustable, allowing precise tuning according to specific door size, traffic patterns, or safety needs.
Tested rigorously for 500,000 cycles and certified to meet EN 1154 standards as well as UL & CE, this model is built for long-term reliability and global compliance. It supports doors up to 80 kg in weight and widths up to 950 mm, making it well-suited to standard commercial entrances. Finished with a high-grade SS 304 cover, FS-8400-S delivers both robustness and a refined appearance. Available in multiple finish options — including Antique Brass, Gold M-PVD, BM, and SSS — it can complement a wide range of architectural aesthetics.
Ideal for architects, contractors, and facility planners, this floor spring combines performance, durability, and design flexibility — offering a dependable solution for demanding glass or framed doors in retail, institutional, hospitality, and office settings.
