The Marco Puretic Power Block revolutionized purse seine fishing. Over 20,000 are currently in operation on purse seiners all over the world.
Their exclusive design ensures faster, more direct net hauling with less wear than other systems.
Characteristics
Marco Puretic Power Blocks come in a wide variety of models with sheave diameters from 19" to 90".
They are made in 3 basic configurations: Standard (ST), fixed side-shell with pin connected yoke; open-side-shell (OS) that swings out to insert the net; and open topped (OT), suspended from one side.
Various types of sheave can be fitted: fully rubberized (RB), with replaceable rubber cleats (RC), replaceable aluminium cleats (AC), replaceable polyurethane cleats (PC) or fixed SST cleats (SC).
The Marco power block can be fitted with the exclusive "Power Grip" which reduces net slippage during hauling.