Your browser version is outdated. We recommend that you update your browser to the latest version.

Welcome to the website of N and B Propellers, a division of Diverse Engineering Ltd.
N&B Propellers has been building propellers for the fishing and leisure boating industries for more than 60 years. 
Our Nelson factory is equipped with the latest equipment to produce propellers from 200 to 1800mm in diameter. We have a foundry, repair and balance room, finishing area and a pattern loft holding the hundreds of patterns to produce new propellers. 

Our specialty is custom made propellers for specific applications be it fishing, leisure or work boat application. In some cases an off the shelf propeller will not be suitable. Taking all the variables into account we can design and produce a new propeller specific to your requirement ensuring the vessel will preform at its very best.

Propeller repairs are completed on site with full coded welding services for tip and blade repairs along with a dynamic balancing services. Finish with a clean and polish and the propeller will look like new. We are an authorized PropSpeed agent and can treat the propeller prior to it being fitted to the vessel.  

Non Ferrous Foundry

Products available include: 

Tank Vents                                  Cored Bronze                                        
Prop Nuts                                    Shaft Zincs
Valve Handles                              Specialised Anodes
Bronze Wing Nuts                         Docking Plug Assemblies
Struts                                          Gypsys
Stern Gear                                   Surge Drums

Please contact David Copland for more information.

mobile 027 222 1181

For other divisions of the Diverse Group, please see the contacts page.