Fixed pitch propeller for ships (custom-made)
Yuanhang Propellers Manufacturing

The shell-shape propeller is a propeller of high thrust high efficiency energy saving. It is designed and developed in cooperation with Professor Zhou of South China University of technology, The shape-shell propellers has obtained a patent certificate in 1999. Its patent certificate number is ZL99 240826.1.
The high efficiency comes from the fact that its blades have two-way concave paraboloid which differs from the common propeller helicoid.The biggest performance characteristic is that the

thrust increases about 20% with promising sailing speed. Therefore it is especially suitable for trawlers and tugboat which are not eqipped with nozzle.This performance of shell-shape propeller has been confirmed by tests and used in many trawlers.