Mechanical engineers servicing NSW – mechatronics, structural steel, and more

End-to-end mechatronic solutions for NSW’s manufacturing industry

At John Harold Engineering & Associates, we believe in helping you work smarter and do smarter work through mechatronics. Our mechanical engineers have helped install and maintain countless plant systems over the years, and were responsible for installing the country’s first mechatronic system for galvanising steel.

With over 30 years of experience in the industry, we provide a comprehensive and holistic approach to the installation, maintenance, and repair of mechatronic systems - from the initial commission all the way through to installation and maintenance.


We provide both mobile on-site and in-house services, and can travel to you for repair and maintenance work, including any to-spec fabrication of replacement parts that the works might require. We can also fabricate all manner of mechatronic systems and structural steel constructs from our NSW workshop.


So whether you need a bespoke mechatronic system or a made-to-spec structural steel construction, it’s a fact that John Harold Engineering & Associates is the company to call.

Machines in Industrial Building

For the best in mechatronic systems and structural steel fabrications, call John Harold Engineering & Associates.

Our services

Image of Engineering Objects on Workplace Top view.construction Concept.

Engineering

Our bread and butter is designing and fabricating mechatronic plant systems based on client requirements and specs. Our mechanical engineers specialise in mechatronics, and we pride ourselves on being one of NSW’s leading designers and fabricators of automated manufacturing and processing systems.

Factory Worker Operating Industrial Machine and Setting Parameters on the Computer

Machinery installation and repairs

Our mechanical engineers can install, maintain, and repair all manner of mechatronics and industrial machinery. Whether it’s a simple, on-site repair job, or a more involved task requiring the in-house fabrication of replacement parts, we can handle it quickly and efficiently.

Arc Welding of a Steel in Construction Site

Structural steel fabrication and installation

We make extensive use of our in-house fabrication capabilities, which allow our mechanical engineers to design, fabricate, and install structural steel frames to the most detailed of client specs. We can fabricate entire steel structures, individual beams and poles, as well as fabricate modifications and alterations to existing structures depending on what our clients require of us.

Work We’ve Done for Our Clients

Take a look at some of the mechatronics and structural steel work we’ve done for our clients below.

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Contact us

For more information on our services or an obligation-free quote, give us a call or fill out our online contact form. We’ll get back to you as soon as we can to help you with your inquiry.

Office Information

Get in touch

Get a free quote by filling out the online form below or speak with a member of our team now by calling (02) 3813 8101.

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