Bonnell springs units are knows and used worldwide for the high upholstery furniture. The Biconical shape provides progressivity in the resistance of the forces supported. The hole interior provides a permanent air circulation and incredible comfort. This kind of springs are 100 % recyclable and environmentally friendly.
Highly texted system
High stability and adaptation to the individual weight
Unbeatable value - price
Number of turns: 4, 5 and 6
Height: from 8 to 15 cm.
Frame Edge: round frame of 4.5 mm.; flat frame of 10x1.7; helical frame of 1.35 mm.
Ø of the wire from 2.00 mm. to 2.45 mm.
Density of the spring 112 springs/m2
Bonnell and pocket units for sofas and chairs for download