KAREN Catalogue

Bonnell and MINI-Bonnell Spring Units belong to the oldest and best known spring systems used in upholstered furniture and mattresses. A wide range of applied diameters of wire from 0,2 up to 2,4 mm provides for the individual selection of innerspring hardness, adapting to the needs of furniture manufacturers.
The said innersprings are delivered rolled in the ROLL-PACK system from 10 up to 50 pieces, and packed on the palletes from 4 up to 12 rolls per pallet.

1. MINI-BONNELL

Material:

• carrying spring: spring wire 2,0 mm in diameter and 2,2 mm in diameter
• stranding spring:  spring wire 1,3 mm in diameter
• embracing steel frame: 0,1 or 2 frames, strip z/w 10 x 1,4 mm

Specification:

• spring height: 65 - 90 mm
• spring diameter: 63 - 73 mm
• number of coils: 4
• innerspring dimension: optional
• non-standard innerspring: corner

2. 4-TURN COIL BONNELL

Material:

• carrying spring: spring wire 2,2 mm in diameter and 2,4 mm in diameter
• stranding spring:  spring wire 1,3 mm in diameter
• embracing steel frame: 0,1 or 2 frames, strip z/w 10 x 1,4 mm

Specification:

• spring height: 80 - 110 mm
• spring diameter: 80 - 90 mm
• number of coils: 4
• innerspring dimension: optional
• non-standard innerspring: corner

3. 5-TURN COIL BONNELL

Material:

• carrying spring: spring wire 2,2 mm in diameter and 2,4 mm in diameter
• stranding spring:  spring wire 1,3 mm in diameter
• embracing steel frame: 0,1 or 2 frames, strip z/w 10 x 1,4 mm

Specification:

• spring height: 120 - 140 mm
• spring diameter: 80 - 90 mm
• number of coils: 5
• innerspring dimension: optional
• non-standard innerspring: corner

4. Mattress BONNELL

Material:

• carrying spring: spring wire 2,2 mm in diameter
• stranding spring:  spring wire 1,3 mm in diameter
• embracing steel frame: 0,1 or 2 frames, strip z/w 10 x 1,4 mm

Specification:

• spring height: 110 mm
• spring diameter: 85 mm
• number of coils: 4

Dimensions of mattress innersprings