Taiwanese Winches for NARL Ship

Oceanographic winches are being supplied to the National Applied Research Laboratories (NARL) from Taiwan for a new Oceanographic 'Research V', being buillt in Jong Shyn Shipyard, Kaohsiung. The main equipment supplied is designed to load 8.500m of Ø38.1mm cable and is composed of a constant-tension tractor winch with a pull of 15T and maximum speed of 80m/min. It is designed to work with fibre cable type Technora Aramid.

 

 

For a proper work with this fibre cables, the tractor winch has been designed to work with individual driven sheave. 8 of 11 sheaves are operated by 8 motors in total. Each motor works individually over its sheave. Motors are controlled automatically changing the sheave speed according to the enlargement produced during the cable loading. In this way, cable deformities are absorbed and friction damages are avoided.

 

The traction winch that works completely coordinated with the tractor winch is composed by a grooved drum with capacity for 8,500 m (Ø38.1mm), and by an automatic control to keep the same tension on each of the layers, increasing the speed progressively according to the work layer. A sheave managed by an independent spooling device drives the cable to be loaded.