The elliptically shaped end pieces of the spring form a dense surface, which provides the optimal basis for further upholstery. And because they are non knotted, these end pieces create maximum flexibility.
With AGRO, you’ll find LFK units under the name of A.LFK – in the product line A.LFK Classic.
A.LFK CLASSIC
With their fine but extremely strong wires, LFK units are lightweights in name only amongst innerspring systems. Within the product line A.LFK Classic you’ll find a selection of classic LFK units in proven AGRO quality. Therefore, lightness isn‘t achieved at the expense of stability and resilience. With their special shape they offer several advantages to consider.
- Classic LFK with 3¾ and 4¾ turns for a wide range of applications, optionally equipped with a frame
- Hinge effect for high flexibility – suited for adjustable base units
- High coil count
Turns
3,75 – 4,75 turns
Heights
130 – 150 mm
Wire diameter
1,8 – 2,1 mm
Width
65 – 75 mm
Bonding
1,3 mm
Springs
150 – 210 /m2
Why A.LFK matters again today
A.LFK is not a new system – but current requirements for modern innerspring mattresses are bringing its properties back into focus. As recyclability, airflow, ergonomic movement, dimensional stability and reduced material complexity become increasingly important, A.LFK offers a distinct system logic within open innerspring systems.
Typical fields of application
A.LFK is particularly suitable for mattress concepts where flexibility, airflow, dimensional stability and reduced material complexity play an important role. These include applications in adjustable bed systems, healthcare, hospitality and sustainability-oriented mattress systems.
A.LFK at a glance
- Open innerspring structure
Supports airflow within the mattress core and can contribute to a comfortable sleeping climate. - Hinge effect
Enables high flexibility and supports movement-oriented comfort concepts. - Mono-material logic
Reduced material complexity can support recycling-oriented mattress concepts. - Dimensional stability
Relevant for handling, transport and long-term shape retention. - High coil count
Supports differentiated load distribution within the system.
Application-specific evaluation
A.LFK is not a universal solution. Whether the system can be used effectively depends on the specific mattress concept, the desired comfort logic and the processing setup. Therefore, A.LFK should always be evaluated in relation to the specific application.