Use of fixing rail loading tables
Calculation method
The published safe working loads are based on tests with perforated (slotted) rail. For non perforated rail the safe working loads can be taken as 20% higher.
Loads are calculated taking into consideration a maximum deflection (f) of length 1/200 x L and a maximum bending stress of 160 N/mm2.
- 1 N (Newton) = 0,102 kg
- 1 kg = 9,8 N (Newton)
Fixing of rails to walls or ceilings
The strength of the anchoring of the rail has not been taken into consideration. The installer must verify that the bolts and wall plugs used are suitable for the maximum permitted loading of the rail.
Methods of loading
Where loads are suspended beneath rails, the load must not exceed the relevant safe load of the slide nut. To increase rigidity of the installation we recommend the use of a U-formed washer.
Reading the rail loading tables
The stated values are only valid for the fixing rail. The maximum safe load of all other construction parts have to be verified. The stated maximum safe load is calculated for a static load at free sliding support. Where the segment is marked with a hyphen, the stated length cannot be safely loaded.