Ratchet Blocks

These blocks are designed with lightweight ø5 mm Delrin ball bearings and are available either with a composite sheave or an aluminium sheave. More grip and the ability to cope with relative thin lines. The sheave automatically changes from free-turning to ratchet when the load increases - the sailor decides when the automatic ratchet kicks in. The switch-over point is set using an allen key to adjust a screw inside the sheave -fast, simple, precise.

These blocks are designed with lightweight ø5 mm Delrin ball bearings and are available either with a composite sheave or an aluminium sheave. < br />More grip and the ability to cope with relative thin lines. The sheave automatically changes from free-turning to ratchet when the load increases - the sailor decides when the automatic ratchet kicks in. The switch-over point is set using an allen key to adjust a screw inside the sheave - fast, simple, precise.

Seldén R60 manual ratchet block (406-350-01R) with a 60 mm sheave and selectable ratchet or free-running operation. Suitable for up to 10 mm line, with 250 kg safe working load and 500 kg breaking load.

Ø5 mm Delrin ball bearings.Ø60 mm Aluminium sheave. Manual switch for either ratchet function or free-turning. Swivellock with snap-joint.

Seldén R60 triple manual ratchet block (406-350-09R) with becket, swivel and integrated cam cleat for high-purchase trimming systems. Maximum 10 mm line, 720 kg safe working load and 1440 kg breaking load.

Seldén R60 anti-clockwise manual ratchet cheek block (406-350-06R) for port-side spinnaker or gennaker sheet installations. Maximum 10 mm line, 250 kg safe working load and 500 kg breaking load.

Seldén R60 clockwise manual ratchet cheek block (406-350-05R) for starboard-side spinnaker or gennaker sheet installations. Maximum 10 mm line, 250 kg safe working load and 500 kg breaking load.

Seldén R60 manual ratchet block (406-350-04R) with becket, swivel and integrated cam cleat for compact sheet-control systems. Maximum 10 mm line, 240 kg safe working load and 480 kg breaking load.

Seldén R60 manual ratchet block with becket (406-350-02R). The 60 mm sheave can run in ratchet or free-running mode, with a 250 kg safe working load, 500 kg breaking load and maximum 10 mm line.