Jason Leussink (Managing Director), Kenley Leussink (Property Director), Ray Leussink (Special Projects Manager), Carel Leussink (Owner - currently retired)

Leussink Engineering based in Unanderra, NSW is an outstanding second generation state-of-the-art engineering family business with more than 40 years’ experience. Today the company has an ever expanding range of capabilities as a result of on-going skills training and investment in the latest technologies.

This personalised business boasts complete design, fabrication, machining services and solutions for clients over a wide spectrum of industries and claims to have world leading after sales service, maintaining close client liaison to ensure expectations are met or exceeded on each job. It is equally renowned for machining bespoke components, fabrication or projects manufactured to turn-key operational level, leveraging years of skills and experience. The capabilities of this company include CNC machining, milling and turning, wire cutting, surface grinding, design, metal fabrication, welding, robotic welding, assembly, reverse engineering, power transmission and parts qualification and verification.

Work is undertaken for clients in such diverse industries such as defence, manufacturing, agriculture, energy, oil & gas, mining and minerals processing, pulp and paper, heavy industry, transport, construction / civil engineering and marine.

In concert with its high level of customer services Leussink Engineering also plans and anticipates its clients’ spare parts requirements ensuring they are available when required thus minimising costly machine down time.

Whilst the engineering side of the business is predominately within New South Wales the company operates nationally, manufacturing and supplying welding fabrication tables in various sizes and configurations. The ‘in-house’ Leussink fabrication department utilises these very same fabrication tables in conjunction with a 16 metre long rail system ensuring fixture flatness of 0.1mm per metre length of table.

Complementing its strong engineering business the company is firmly focused on modernising and revolutionising workshops and production facilities throughout Australia. Utilising a wide range of engineering solutions it uses world leading welding and fixturing tables and accessories to portable metrology arms that deliver the highest accuracy per part qualification. It provides metrology solutions for industrial application nationwide with products, software and services to meet the challenges of the manufacturing environment with internationally regarded products.


Due to a strong commitment to its clients, particularly in the defence area and international clients with propriety components, the company demonstrates high levels of IT protection and has actively participated in AusIndustry’s Cyber Security Maturity Assessment program. This covered assessments in risk identification, threat detection, protection, response and recovery, ensuring that the company remain ‘low risk’ in this area.

In the high end technology area Leussink has had a long association with Okuma Australia going back some 26 years when the first lathe was purchased. Its most recent addition is the latest Okuma CNC Lathe Model LH55-N-Cx4000 with OSP-P300LA control. This machine complements an earlier similar model providing the company with further advanced technology and greater capacity in the heavy engineering area where repair and rework, reverse engineering and specialist high end jobs cater for general manufacturing, mining, steel industry and power energy clients.

“We have found the equipment to be reliable and proven performers and not least of all, the service and support from Okuma has been outstanding,” said Chris Walton, Leussink Engineering Sales Manager. “The combination of these points made the company’s decision to invest in additional Okuma machinery a ‘no brainer’,” he said.

Chris also commented that negotiating the purchase from Okuma was a professional and stress free process, further commenting that their communication is their strong point when seeking spares or technical support. “The Okuma team and the machinery they provide is an exemplary package making it hard to look elsewhere,” he said.


This latest Okuma acquisition also complements a number of other Okuma machines in the engineering shop opening up new business opportunities and dramatically reducing deadlines. The capabilities also allow shorter runs, reducing inventory and enhanced competitiveness.

Leussink Engineering takes full advantage of the training support offered by Okuma where appropriate but being familiar with the easy programming and operating systems of the Okuma machines, the skilled engineers and operators are competent in this area.

New business opportunities for the company are being advanced in the Defence sector and both the mining and the steel industries, promoting the competitive and quality advantages of Australian manufacturing.

“It is exciting to work with yet another progressive Australian company investing in the future and taking advantage of the current strong support for hi-tech and competitive manufacturing in this country against the threat of overseas suppliers and winning,” said Okuma Australia Managing Director Dean McCarroll. “A strong vibrant, competitive and reliable manufacturing base is vital to our Australian economy supporting recovery in the current climate and in the longer term,” he said.

Addressing the serious shortage of apprenticeship applicants, Leussink Engineering has been proactive in working closely with local secondary schools careers advisory personnel and addressing student groups on career opportunities in engineering. This has proven to be successful and the company currently has eight apprentices under training. 

This socially responsible community minded family business is also actively involved in the Illawarra and NSW South Coast community through participation in annual charity events along with other local businesses in raising money to support those in need. The company also supports local schools opening up opportunities and vision for young people to careers in engineering.

Carel Leussink - established the business in 1977 and is still an owner of the business although currently retired.