Hettich HTS FS844 Floor Spring (840 Series) – Fire Rated

Overview

The Hettich HTS FS844 is a cam action floor spring (door closer body) designed for commercial and high-traffic glass, wooden, steel, or profile-framed doors. It is fire rated, EN1154 certified, and tested for 500,000 open/close cycles. This listing covers the floor spring body only, for a door width of 1100 mm, without accessories.

What It Does

The floor spring is installed at the base of a door to control smooth opening and closing. It includes an inbuilt back check and an optional hold-open function at 90°, allowing the door to stay open at that angle without additional hardware. It suits single or double leaf doors and works with both DIN Left and DIN Right door configurations.

Who It Helps

Key Capabilities

SpecDetail
ProductHettich Floor Spring HTS FS844 (Body)
Series840 Series
Door weight capacity40 kg – 150 kg
Door width850 mm – 1100 mm
Door opening angle130°
Hold openOptional, at 90° (no accessories required)
Back checkInbuilt
HandingBoth DIN Left / DIN Right
Door typeSteel, wooden, or profile-framed
Fire ratedYes
CertificationEN1154
Cycle testing500,000 cycles
FinishSilver
Warranty5 years
Net content1 set floor spring
Country of originChina
SKU9227847

Buyer Questions This Page Should Answer

What door widths does the HTS FS844 support?

It is rated for door widths between 850 mm and 1100 mm.

How heavy a door can it handle?

Doors weighing 40 kg up to a maximum of 150 kg.

Does it hold the door open automatically?

Yes, it has an optional hold-open feature at 90° that works without extra accessories.

Is it certified for fire-rated door applications?

Yes, it is EN1154 certified and marketed as fire rated.

How durable is the mechanism?

Hettich states it is tested for 500,000 open/close cycles.

What is included with this SKU?

This listing is for the floor spring body only (1 set), for 1100 mm door width, without additional accessories.

Is it suitable for single or double doors?

Yes, it is applicable for both single and double leaf doors, and supports both DIN Left and DIN Right handing.

What is the warranty?

Hettich offers a 5-year warranty on this floor spring.

Is it currently available to purchase?

Proof or Trust Signals

Pricing

Resources or Next Steps

Current product facts

Last checked by Readable: 2026-09-25T18:46:51.283Z