Marine Propeller Shaft, Stern Shaft

We mainly produce shaft system and rudde system products: propeller shaft, intermediate shaft, coupling, rudder stock, rudder blade, hydraulic nut etc.

Related products like oil rubricated sealing,water rubricated sealing, high-polymer bearing, upper and lower rudder bearing etc.

We provide blue fitting for propeller & shaft.

A whole set of propulsion system can by provided by us.

follows,1.Material:H13,4130,4140,4150,4340,1035,1045,EN9,EN19,EN24,EN31,51200,SUJ2,

100Cr6,K310,34CrNiMo6,36CrNiMo4,

42CrMo4,86CrMoV7, C35E, C40E, C45E, etc.
2.Hardness: HB240-320
3.Ultrasonic Test: Sep 1921-84 - Test Group 3 Class D or ASTM A388 - FBH max 4mm
4.Forging reduction ratio: ≥4
5.Manufacturing process: steel ingot→forging→rough machining→QT→2th rough machining→finishing machining→packing→delivery
6.Quality required: Surface defect and decarburization shall be free. All dimensions are 100% OK.
7.Packing: wooden box or metal pallet for protection against rust and damage.

8.Quality Management Certification: ISO 9001:2008.

Product Name	Specification	Main Materials
marine propeller shaft	Dia.80~ Dia.1500mm Length≤12000mm	H13,4130,4140,4150,4340, EN9,EN19,EN24,EN31,etc