Model 4000 Series -Counterbalanced / Fairlead Blocks and Readout

Counterbalanced/Fairlead Blocks and Readout. The 4000 series Counter Balanced Blocks utilize a weight which is counterbalanced above the pivot point. The cable exerts only a slight force for the sheave to remain co-planar with the bisected cable, regardless of ship roll, pitch, yaw and trawling operations. On standard blocks, further cable protection is provided by a cable guard. This ensures positive cable entrapment during times of slack cable. Sensing and display electronics measure cable payout and rate. As cable is run over the sheave, solid state magnetic switches sense the speed and direction of the sheave`s rotation. These signals are processed by solid-state microprocessor-based circuitry. `Fairlead Blocks` are designed and manufactured the same as counterbalanced blocks without the counter-balance feature.