VDMA

VDMA guideline specifies the requirements for dimensional regularity of finished floors inside of buildings used by guided VNA Industrial Trucks and other Industrial Trucks travelling with elevated loads and/or operator positions inside very narrow aisles or in close proximity to racking in wide aisles.

a)     Property dZ (Transversal)

Property dZ is the elevational difference between the centres of truck load wheels (a, b) and dZ is determined as shown in the figure below


The values shall not exceed the values given in Table A.1

Top Beam Level (m)
Zslope (mm/m)
dz = Z x Zslope

15

1.0

Z x 1.0 mm/m

14

1.1

Z x 1.1 mm/m

13

1.2

Z x 1.2 mm/m

12

1.3

Z x 1.3 mm/m

11

1.4

Z x 1.4 mm/m

10

1.5

Z x 1.5 mm/m

9

1.6

Z x 1.6 mm/m

8

1.8

Z x 1.8 mm/m

7

1.9

Z x 1.9 mm/m

6

2

Z x 2 mm/m

b)     Flatness (Longitudinal)

Limiting values for flatness along the tracks in very narrow aisles (VNA)

The values shall not exceed the values given in Table A.2.

Distance Between Measurement (I)
Gap Under Stright Line (t)

1 m

2 mm

2 m

3 mm

3 m

4 mm

4 m

5 mm

c)     Levelness

All VDMA requires that no point exceeds ±15 mm from the fixed datum plane.

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