CJR Propulsion

Who we are

One of the UK’s most respected manufacturers

As the marine industry has developed and the demand for highly efficient, performance products has continued to grow, CJR has emerged to become one of the UK’s most respected marine manufacturers; supplying precision-engineered propeller and stern gear packages to a host of leading commercial, leisure and superyacht brands. To achieve and maintain its position in the marketplace, CJR combines decades of experience with continuous investment in the latest technology and engineering prowess, supplying products which exceed customers’ expectations and demonstrate a genuine advantage over the leading competitor’s products.

Technology

Of the many elements which make CJR unique and successful, it is the company’s investment in technology which truly sets it apart from the competition. Since CJR’s formation in 1948, the company has gone from strength-to-strength and today boasts one of the most advanced marine manufacturing facilities in the country. From its multi-million pound ‘true 5-axis’ CNC machining centre, to its advanced computational fluid dynamics programme and in-house ‘supercomputer’, CJR ‘s investment has outstripped industry standards by over 400% in the past five years alone.

Industry

Looking ahead, the industry is moving in one direction. As the price of oil continues to rise unabated, customer requirements are constantly evolving and efficiency has grown to become a key deliverable. Performance remains the yardstick against which CJR’s products are measured; however, efficiency reliability, longevity, and the lowest levels of vibration are increasingly contributing to the buyer’s decision-making process. This shift towards a greater emphasis on lifetime cost of the propulsion system means CJR is perfectly placed to play an even more significant role in the future.

Our values

IMPROVING SUSTAINABILITY

17 Nov 2021

We’re designing and installing a new system to make our foundry more sustainable. This includes recycling the sand we use during the casting process. We’ve cut our wastage by 97%, from 300 tonnes a year to just 9 tonnes saving 291 tonnes going to landfill. As well as the impressive reduction in waste, the thermal reclamation process we’re using also improves the quality of the sand meaning better surface finishes. Another knock-on benefit of our new system is lower transportation emissions as we have fewer deliveries and fewer collections of sand.

This investment in machinery is not the only way we can help our customers to meet their targets to improve sustainability. Our technical approach to sterngear design has been shown to help improve fuel economy by 10% and is one of the reasons we’re the supplier for sustainability-conscious builders like Arksen and Sunreef. We’re in the process of moving to a power pack and green electricity to run our foundry and to reduce our energy footprint. We’ve also upgraded our machine filters to exceed HSE guidelines on atomised particles.

We know that improving sustainability matters to our customers and we’re committed to working closely with you to achieve your goals. If you’d like to find out more about we can help you reach your targets, get in touch.

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