As a design and manufacturer of the marine propulsion units, all the products we manufacture 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.Â
 We are mainly woring with state and governmental projects, 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 men produed according to the requirements and provide the certificate accordingly, presently , we can offer the certificate like CCS ,ABS ,BV ,LR ,DNV .RS etcÂ
 There are 2 types of rudder propeller: Fixed Pitch Tunnel Thruster and Controllable
Pitch Tunnel Thruster which are used for the Large tugboat, harbor tug, drilling platform vessel, ocean engineering vessel etc, it has advanatges as follow:
1/ Rudder and thruster in one. Rudder propeller can steer in any direction of 360°above the water level.   Provide all-around thrust.
2/  Three installation: deck/ transom/Well  Â
3/ The power can be supply by e-motor or Prime moverÂ
Presently the propeller dia. we can do from 250mm to 3300mm, input power from 20KW to 3500KW.
Quality creates brilliance ,Excellence defines Furture , we are looking forward to do businnesee with client all over the world!
 Â
Â
Refrigeration Parts include aluminum coil tube, Evaporator , Refrigeration Tape , Steel Tube , Aluminum Foil Tape , hand tools and so on. good quality which can prolong the service of your products. various types which can satisfied with your need. we can match your various need. save your cost and energy.
Aluminum fin evaporator and condenser coils fin bare and hydrophobic fin material range from 0.1mm to 0.19mm thickness using which from 5mm to 15.88mm in both smooth and internally Grooved tubes. We have various thicknesses of copper tubes to meet different design pressures including the design and pressure requirements of natural refrigerants.
Refrigeration Parts
Aluminum Pipe,Evaporator,Steel Tube,Refrigeration Tape
Grana Industry Metal Ltd. ,