Slides

All Sprenger products bear the HS-Germany stamp, the manufacturer’s official logo. This mark serves as a distinguishing feature and stands for ‘Made in Germany’ quality .

The safe working load describes the maximum load to which a block may be subjected continuously during normal operation without causing damage or impairing its operational capability.

The breaking load, on the other hand, denotes the load limit at which the component fails – that is, breaks or ceases to function entirely.

As a general rule, we recommend a safety factor of at least four.

Example:

If a breaking load of 1,000 kg is specified in the catalogue, this results in a permissible working load of 250 kg (1,000 kg ÷ 4).

This fourfold safety margin is standard practice in the chain industry. In practical terms, this means that if a breaking load of, for example, 1,000 kg is determined, 50 per cent of this value – i.e. 500 kg – is set as the test load. No permanent deformation must occur under this test load. The safe working load is then half the test load, and is therefore 250 kg.

Sheet stoppers are used to secure running rigging quickly and easily, and to release it just as quickly when required.

When the line is loaded in the direction of tension, the toothed clamping jaws engage and hold the rope securely. An integrated spring mechanism ensures that the jaws are pressed against the inserted line, reliably locking it in place.

To release the line, the secured end is lifted upwards. This opens the clamping jaws, allowing the rope to run freely again. There is therefore no need to secure the line to a cleat.

This method makes casting off particularly quick, and even when the line is secured, it can still be hauled in further if necessary.