ZF adds thruster model range
By Jack Burke02 February 2021
Designed for broader range of vessels
ZF said its new ZF AT 80 thruster model range is available as a 360-degree steerable thruster and as a retractable propulsion system, or as a bow thruster.
ZF said that enables even more ship operators, shipyards and naval architects to use made-to-measure ZF technology for various applications. With a power output of 1380 to 1585 kW, the propulsion system covers the range between the company’s 6000 and ZF 7000 models.
“With this model range, we have created a new generation of environmentally friendly, powerful and efficient propulsion solutions,” said Andre Körner, head of Product Line Commercial & Fast Craft. “This way, naval architects, shipyards and fleet operators can rely on a high-quality and robust propulsion system with ZF’s renowned features for a great number of ship types.”
When developing the AT 80, ZF said it further refined the design of its thruster: The new hydrodynamically optimized shape of the underwater housing reduces drag and improves cavitation behavior. This increases the overall efficiency of the propulsion system, the company said. Drawing on decades of know-how at the central ZF development departments when designing the transmissions and oil circuits, this propulsion system meets the highest requirements for robustness, efficiency and availability, the company said. The lean and flat design helps save valuable installation space in the hull.
The propulsion system’s efficiency is higher, thanks to the low oil fill quantity, which simultaneously reduces CO2 emissions. Leakages are detected early with a future-oriented, double-chamber sealing system. This prevents both mineral oil leaking into waterways and/or water getting into the transmission. As a result, the model range meets current and future stricter environmental regulations, the company said.
With its modular design, the model range enables tailor-made solutions for customers. The AT 80 is available as a 360-degree steerable thruster, as a retractable propulsion system, or as a bow thruster. In combination with a resistance-optimized nozzle, the achievable speed is improved – a feature particularly useful for passenger ships, such as ferries. ZF also offers a thrust-optimized nozzle, which impresses with its improved bollard pull, useful for tugs and work boats.
can be planned in advance. This optimizes the availability and operating times of the ship, reduces operating costs and improves the performance of the components in terms of service life and efficiency. Thanks to oil monitoring, lubricant contamination becomes visible quickly. An oil change is only necessary if water or particles are actually present.