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System Fx

System Fx offers strong hold positions at every 90°. With its minimalistic, sleek, and durable design it is the ideal solution for interior doors.

Features

Compact design

With a height of just 38 mm and a width of 32 mm, System Fx fits seamlessly into slim-profile doors, combining effortless installation with a sleek, minimalist aesthetic that doesn’t sacrifice performance.

Weight capacity

System Fx is engineered to support doors weighing between 20 and 500 kg, ensuring reliable functionality across a wide range of applications, from lightweight to heavier door designs.

Returns to closest hold position

Whether installed in middle or side placement, System Fx returns to the nearest hold position from +10° or -10° from the hold position, for enhanced functionality and convenience.

Discover System Fx

What a System Fx set contains

A complete set consists of four parts. The pivot hinge sits in the door, the plates anchor it to floor and ceiling.

Ceiling plate

Fitted in the ceiling; the top pivot pin fits into it. Available in brushed stainless steel and black.

Top pivot

Mounted into the top of the door via a pinhole connection. Available in Class B and Class G, and as Top pivot Reversed. The Class G version carries a Ø7.5 mm cable entry for wiring through the door.

Bottom pivot

The pivot mechanism and driver of the door, fitted in the bottom side, virtually invisible. Load bearing capacity up to 500 kg. System Fx is a free-swing system: it offers strong hold positions and free swing between 10° and 80°, and is not self-closing.

Floor plate

Fixed with 8 mm mounting pins, so it can be combined with floor heating. Squared and round come in stainless steel and black; Flush recesses into the door frame and comes in stainless steel.

* Shown: System Fx 70 mm. Other options available.

Configure your own set

Every component is a decision

Five cautious choices hold a 500 kg door exactly where you leave it.

The bottom pivot named above is where this happens. Here is what sits inside it, and why each part is built the way it is.

Cutaway render of the FritsJurgens System Fx body showing its aluminium housing — 1/5 Body

Nothing shows. The housing disappears into the door, so the only thing the room reads is the door itself, moving.

Transparent render of the FritsJurgens System Fx with its mounting brackets and internal mechanism visible — 2/5 Mounting brackets

Stays true. The brackets hold the system precisely where it meets the floor, so the door keeps the line it was set to.

Transparent render of the FritsJurgens System Fx showing the holding mechanism inside the housing — 3/5 Holding mechanism

Holds where you leave it. The door stops where you put it and stays there, instead of drifting back across the room. Strong hold positions at every 90°

Transparent render of the FritsJurgens System Fx with the camshaft and pivot axle visible — 4/5 Cam shaft

Never wears. The part that meets the force of every open and close is tool steel, so the door holds its precise feel instead of loosening over time. Tool steel · effortless rotation, year after year

Transparent render of the FritsJurgens System Fx with the bearings highlighted in black — 5/5 Bearings

Makes weight feel light. The bearings share the load between them, spreading the weight so evenly that a substantial door turns at the touch of a hand. Three polymer bearings · smooth movement under the heaviest doors

Drag over the photos for more

At a glance

System Fx comes in two builds. The 70 mm runs from side to middle placement and takes doors up to 500 kg; the 40 mm is a fixed side placement for doors up to 209 kg.

System Fx 70 mm Class A, C and G

System specifications
Dimensions	210 x 32 x 38 mm
Placement	Side to middle placement
Pivot point	From 70 mm to middle placement
Cover plates	No
Weight capacity	Class A: 20 - 119 kg Class C: up to 209 kg Class G: up to 500 kg
Pairs with
Top pivots	Top pivot 70 mm Class B (Class A) Top pivot 70 mm Class G (Class C, and G) Top pivot Reversed (all classes)
Floor plates	Floor plate squared Floor plate round Floor plate Flush squared Floor plate Flush rounded
Functionalities
Free swing	Yes
Hold Positions	Yes
Self-closing	No
Door specifications
Door acting	Revolving: 360° Double-acting: 180° Single-acting: 90°
Door width	Unlimited
Door height	Unlimited
Pivot point	Side and middle
Minimum door thickness	40 mm
Top gap	4 - 10 mm
Bottom gap	7 - 11 mm
Door movement	Free swing between 10° and 80°, with hold positions at 0°, 90°, 180° and 270°

System Fx 40 mm Class A and C

System specifications
Dimensions	188 x 32 x 85 mm
Placement	Side placement
Pivot point	Fixed at 40 mm
Cover plates	Yes
Weight capacity	Class A: 20 - 119 kg Class C: up to 209 kg
Pairs with
Top pivots	Top pivot 40 mm Class B (Class A) Top pivot 40 mm Class G (Class C) Top pivot Reversed (all classes)
Floor plates	Floor plate squared Floor plate round Floor plate Flush squared Floor plate Flush rounded
Functionalities
Free swing	Yes
Hold position	Yes
Self-closing	No
Door specifications
Door acting	Revolving: 360° Double-acting: 180° Single-acting: 90°
Door width	Unlimited
Door height	Unlimited
Pivot point	Side
Minimum door thickness	40 mm
Top gap	4 - 10 mm
Bottom gap	7 - 11 mm
Door movement	Free swing between 10° and 80°, with hold positions at 0°, 90°, 180° and 270°

System Fx on video

Downloads

3D drawing System Fx 40mm (STEP)

STEP File, 1.25 MB

3D drawing System Fx 70mm (STEP)

STEP File, 998.66 KB

Inspiration Brochure

PDF File, 3.36 MB

Milling and mounting manual System Fx 40 mm Class A

PDF File, 1.27 MB

Milling and mounting manual System Fx 40 mm Class C

PDF File, 1.29 MB

Milling and mounting manual System Fx 70 mm Class A

PDF File, 1.62 MB

Milling and mounting manual System Fx 70 mm Class C

PDF File, 1.63 MB

Milling and mounting manual System Fx 70 mm Class G

PDF File, 1.37 MB

Product Catalogue

PDF File, 5.73 MB

System Fx 40/70 mm DWG

DWG File, 1.25 MB

System Fx technical documentation

PDF File, 477.46 KB

Zettex Strongbond adhesive (glue)

PDF File, 518.57 KB

Frequently Asked Questions

What is new about System Fx?

The strong hold positions of System Fx is what set it apart from our other pivot hinges. The name Fx comes from fix, meaning the door is fixed in place due to the strong hold positions.

Does System Fx have damping or soft-close?

System Fx does not offer damping or soft-close. This is offered exclusively by System M+.

How do I know if System Fx is the right type of hinge for my project?

To discover whether System Fx is the most ideal solution for your project, please use our product selector.