E-Invest’s wide range of products includes perforated sheets of various sizes, thicknesses, as well as the shape and arrangement of the eyelets.

The versatility of applications characterizing modern perforated sheets is due to both the properties of the materials used in their production and the shape and arrangement of the holes. In some cases, sheet perforation requires making the final product in a smaller thickness and width with the need to leave unperforated technological margins.

Openings elongated straight arrangement is a perforation often encountered in practice, characterized by the possibility of arranging the holes in both vertical and vertical systems. Therefore, two specifications appear here:

  • for horizontal holes:
    – designation: Lg a x b – t x t1,
    – relative clearance for a < b: P = [( a x b ) – (0.215 x a2)] / (t x t1) x 100%,
  • for vertical openings:
    – designation: Rv a – t,
    – relative clearance: P = 0.91 x ( a2 / t2 ) x 100%.

All punched sheets are manufactured from high-quality raw materials, including: metals of color such as aluminum and different varieties of steel: stainless, acid-resistant, etc.

E-Invest offers perforated sheets in a wide range of models.

blachy perforowane z otworami wydłużonymi prostymi

Designation:

Lg a x b – t x t1

Relative clearance for a < b:

P = [( a x b ) – (0.215 x a2)] / (t x t1) x 100%

The first dimension in the name indicates which dimension of the mesh is parallel to the longer side of the perforated sheet.

Name a x b – t x t1P %
Lg 4 x 25 – 16 x 5012.1
Lg 4 x 28 – 10 x 3431.9
Lg 4 x 57 – 18 x 6818.3
Lg 4.5 x 26 – 7 x 3053.6
Lg 4.5 x 45.5 – 20 x 7014.3
Lg 4.7 x 34 – 16 x 3924.8
Lg 5 x 25 – 16 x 3422.0
Lg 6 x 35 – 24 x 4220.1
Lg 6 x 38 – 11 x 5238.5
Name a x b – t x t1P %
Lg 8 x 40 – 14 x 9223.8
Lg 10 x 20 – 40 x 3014.9
Lg 10 x 40 – 16 x 9225.7
Lg 10 x 60 – 50 x 6817.0
Lg 12 x 40 – 18 x 9227.1
Lg 12 x 65 – 20 x 14625.7
Lg 16 x 28 – 24 x 7621.5
Lg 16 x 32 – 24 x 8023.8
Lg 16 x 36 – 48 x 4424.7
Name a x b – t x t1P %
Lg 16 x 60 – 28 x 15021.5
Lg 20 x 40 – 28 x 5051.0
Lg 20 x 40 – 28 x 4853.1
Lg 24 x 50 – 36 x 5851.5
Lg 24 x 74 – 38 x 8451.8
Lg 30 x 60 – 70 x 2509.2
Lg 40 x 60 – 100 x 7228.6
Lg 40 x 100 – 80 x 37512.2
blachy perforowane z otworami wydłużonymi prostymi

Designation:

Rv a – t

Relative clearance:

P = 0.91 x ( a2 / t2 ) x 100%

The first dimension in the name indicates which dimension of the mesh is parallel to the longer side of the perforated sheet.

Name a x b – t x t1P %
Lg 18 x 4 – 25 x 834.3
Lg 20 x 4 – 25 x 2015.3
Lg 20 x 5 – 25 x 1722.3
Lg 20 x 7 – 23 x 2324.5
Lg 20 x 7 – 25 x 2223.5
Lg 20 x 7 – 30 x 3412.7
Lg 25 x 7 – 40 x 2417.1
Lg 30 x 6 – 40 x 1528.7
Lg 30 x 8 – 35 x 2823.1
Lg 30 x 10 – 35 x 3224.9
Name a x b – t x t1P %
Lg 35 x 6 – 40 x 2025.3
Lg 35 x 6.3 – 40 x 2224.1
Lg 35 x 10 – 40 x 3225.7
Lg 35 x 10 – 44 x 3620.7
Lg 35 x 12 – 40 x 3825.6
Lg 35 x 12 – 44 x 4519.6
Lg 38 x 6 – 52 x 1138.5
Lg 40 x 8 – 46 x 1447.6
Lg 40 x 8 – 46 x 1447.6
Lg 40 x 10 – 48 x 3224.6
Name a x b – t x t1P %
Lg 40 x 12 – 46 x 1854.2
Lg 40 x 12 – 50 x 4420.4
Lg 44 x 5 – 48 x 1529.8
Lg 50 x 10 – 80 x 5211.5
Lg 50 x 12 – 60 x 4023.7
Lg 51 x 6 – 57 x 1243.6
Lg 60 x 20 – 72 x 6424.2
Lg 65 x 12 – 75 x 2049.9
Lg 100 x 20 – 200 x 2803.4
Lg 102 x 25 – 125 x 5038.7