Galvanized Mattress

Mattress is a double-twisted wire mesh container uniformly partitioned into internal cells with relatively small height in relation to other dimensions, having smaller mesh openings than the mesh used for gabion; mattresses are generally used for riverbank protection and channel linings.

Galvanized mattress consists of double-twisted wire mesh made from wire which is zinc coated before being double-twisted into mesh. Fasteners, lacing wire, and stiffeners are produced from zinc-coated wire.

Galvanized Mattress
Galvanized Mattress

Mattress shall be manufactured with a 6 x 8 mesh type having a nominal mesh opening of 64 x 83 mm (2.5 by 3.25 in.). Tolerances on the mesh opening shall not exceed ± 10% on the nominal dimension D values. 

Typical mesh wire, selvedge wire and lacing wire group

2.00 mm, 2.70 mm, 2.00 mm

2.20 mm, 2.70 mm, 2.20 mm

Minimum zinc coating weight of mattress wire

2.00 mm ≥ 215 g/㎡

2.20 mm ≥ 230 g/㎡

2.70 mm ≥ 245 g/㎡

Mesh Opening 60 x 80 mm
Mesh Opening 60 x 80 mm

Mattress wire diameter tolerance

2.00 mm ± 0.05 mm

2.20 mm ± 0.06 mm

2.70 mm ± 0.06 mm

Typical mattress size (L x W x H)

3 x 2 x 0.3 m with 2 diaphragms

4 x 2 x 0.3 m with 3 diaphragms

5 x 2 x 0.3 m with 4 diaphragms

6 x 2 x 0.3 m with 5 diaphragms

Width and length of the mattress as manufactured shall not differ more than ± 5%, and the height shall not differ more than ± 10% from the ordered size prior to filling.

Gabion Size 2 x 1 x 1 m
Gabion Size 2 x 1 x 1 m

Gabion and mattress shall be manufactured with all components mechanically connected at the production facility with the exception of the mattress lid which is produced separately from the base. All gabion and mattress shall be supplied in the collapsed form, either folded and bundled or rolled, for shipping.

Packing of Mattress
Packing of Mattress

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