Our propeller diameter covers a range from 1120mm to 6700mm, and the maximum power can reach 17000kW. NGC is a capable package supplier who is able to design and manufacture CPP of various shaft line arrangements, such as single screw, twin screws and parallel operation of twin engines, etc. In addition, there is PTO equipped with CPP system, which is able to drive one or more loads (shaft generator or fire pump etc.) to satisfy the requirement of different ship hulls and functions.

To meet the harsh ocean environment, our engineers take full consideration of reliabilities during the hydrodynamic calculation, structural design and material selection, which make our controllable pitch propellers are featured with good reliability, simple configuration and maintenance friendly, etc. The hub is designed with large diameter servo piston, and the hydraulic force of the piston works on the yoke, so as to decrease the work oil pressure required by the hydraulic system.

Combining the test to the propeller design, we apply the large skew propeller and optimal disc ratio solutions to lower down the cavitations and vibration of the propeller, in this way, not only the navigation speed and towing force can be satisfied, but also the operation performance and economical efficiency of the ship is improved.
During the shaft line design, the engineers take account of the negative influence to the shaft strength, vibration and alignment caused by the bending stress load change, propeller stress, gear meshing load and the bending stress of main engine crank shaft, and the calculation result fits more with real work condition.
During the navigation, if the feathering CPP does not work, the blades can be adjusted to the downstream condition to decrease the resistance effectively.

CPP Size	P/n (kW/rpm)	Propeller(mm)		Shaft Propeller(mm)		Verrin Separe	Verin Integre	Correspondance
		Min.φ	Max.φ	Min. φ	Max. φ
MM300	0.6	900	1350		100	Yes	No	HPV204
MM432	1.3	1300	1850		132	Yes	No	HPV404
MM480	2.5	1440	2160	150	160	Yes	No	HPV604/704
MM520	4.5	1560	2340	170	190	Yes	No	HPV704/804
MM640	7.5	1920	2880	200	230	Yes	Yes	HPV1004/1504/2004
MM720	11	2160	3240	240	255	Yes	Yes	HPV2004/2504
MM780	15	2340	3600	265	285	Yes	Yes	HPV2504/3005
MM860	22	2580	3930	295	325	No	Yes
MM960	29.5	2880	4385	335	365	No	Yes
MM1070	42	3210	4890			No	Yes