Description
The controllable pitch propeller (CPP) can be efficient for the full range of rotational speeds and load conditions, since its pitch will be varied to absorb the maximum power that the engine is capable of producing. When fully loaded, a vessel obviously needs more propulsion power than when empty. By varying the propeller blades to the optimal pitch, higher efficiency can be obtained, thus saving fuel. A vessel with a VPP can accelerate faster from a standstill, and can decelerate much more effectively, making stopping quicker and safer. A CPP can also improve vessel maneuverability by directing a stronger flow of water onto the rudder. 

Features
Excellence in Operability and Economy. 
Minimizing noise and vibration levels. 
Superiority in ship control. 
Propeller can be driven by electric motor, diesel engine and hydraulic motor. 
Hydraulic system is available. 
Twin-engine incorporation is optional. 
Fixed or varied pitch is optional. 

Specifications 
Application
Transportation vessel, tug boat, RO/RO ship, ocean engineering vessel, cargo liner, etc. 

Workshop
Our company SJMATEK has two workshops and offce of 23, 000 square meters. It's assembly workshop is specially used for assembly and joint adjustment, the max sling load is 80 tons, the hoisting height is up to 20 meters. 

The company has more than 20 sets of machining equipment, there are 18-meter lathes used for main propeller, big boring machine, CNC lathes, machining center, etc. Seven sets of testing instruments and equipment, including universal material testing machine, automatic pendulum impact testing machine, infrared thermometer, portable magnetic particle detector and ultrasonic detector. In addition, there are three test stands for rudder propeller, two test stands for tunnel thruster, two test stands for main propeller and one test stand for oil dispenser. 

The existing production and testing equipment and facilities can meet the basic needs of product design, development, production and service. 



Certificates of Classification Society
Certificates of all 12 classification societies of IACS ( International Association Of Classification Societies ) are available. 


Project Cases


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About Us

SUJING GROUP is the key national High-Tech & innovative pilot enterprise in China. It provides overall project solutions in the fields of air purification, energy saving, environmental protection, gas purification and marine propulsion equipment, etc. Only has it with 1, 100 staffs, but the annual output value is more than RMB 3 billion. The brand of "Sujing" is well-known in China. The product is not only hot in domestic market but also has been exported to over 20 countries such as USA, Russian, Japan etc. 

SJMATEK is the subsidiary company of JIANGSU SUJING Group. We are professional manufacturer of special marine propulsion system, Its leading products are controllable pitch propeller (CPP), tunnel thruster (SCT-FP &SCT-CP) and rudder propeller (SZP/SZD/SLP/NAD/NAV). 

As a design and manufacturer of the marine propulsion units, all the products are with mature techniques, we have a professional technical team with decades of experience in the design/prodction/quality control and the after-sale service. 

We have years' abundant experience working with the state and governmental shipyards in China, CSSC, CSIS, design Institute, shipping owners, clients from European and East-south Asia. We have continuous collaboration with national & private ship design institutes as well. 

Since the fountation of SJMATEK in 2013, we have supplied more than 200 vessels with our tunnel thruster/rudder propeller and CPP, All of them are working well. All the products can be customized according to the requirements and the certificate accordingly is available, such as CCS, ABS, BV, LR, DNV-GL, RS, etc. 

Quality creates brilliance, Excellence defines Furture! We are looking forward to doing business with clients all over the world!