Starting out in 2002 from humble beginnings, Control Unlimited have expanded their Australian-owned business into a team of hard-working professionals in the growing Toowoomba region.

We specialise in the manufacturing, supplying, testing and installation of grain aeration and handling equipment, as well as electrical cabinets to safely house these products.

The Control Unlimited team are either from farming backgrounds or have a keen interest in the industry, which means they understand the personal challenges their customers deal with on a day-to-day basis.

Mark Conway, head of the business and family, has been working with farmers since 1985 and working in the grain storage and aeration industry since 1996. Raised on a mixed farming enterprise near Moonie, almost all of his family still work on their farms today.

With a wide skill-set, 2 fully-qualified electrical fitter mechanics, 40 years of combined experience across our team and the capacity to do R&D, you can trust that our team is not only experienced at what they do but committed to working professionally and in a timely manner.

Our primary focus at Control Unlimited is to provide outstanding customer service, both before and after a sale, to get to know our customers’ operations inside and out. We are committed to putting in the time and effort to see a job done right the first time while producing quality, long-lasting results.

At Control Unlimited we have never passed up the opportunity to challenge ourselves and are willing to give new opportunities a go – whether it’s different facilities, like feedlots, or working with different products, such as peanut facilities or aerating compost piles. We pride ourselves on taking on not just the big jobs but the smaller tasks too. We try to cater to everyone and always find new pathways to follow to make your vision a reality.

Past automation and innovation jobs:
  • Compost aeration controllers - Monitoring CO2, moisture and temperature levels

  • Egg oilers

  • Controlling pumps - For adding additives into irrigation water to minimise or stop blockages

  • Timing pumps and valves - To lubricate bore casing

  • Product reliability and performance testing

  • Grain vs Humidity Trials - Constantly performing trials to accurately identify how best to dry grain using ambient air

  • Simplifying the controller interface - Testing how to make the controller more accessible and easier for farmers to use

Not sure where to start?

If you have a job for us, but don’t know where to begin, give the team at Control Unlimited a call.

Contact us


Reach out to the Control Unlimited team today

07 4634 4706

Unit 1, 15 Freighter Avenue,
Toowoomba Qld 4350


One of our friendly team members will get in touch with you to answer your questions and discuss your requirements

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Send us a quote for Grain Aeration Solutions

Control Unlimited are ready to assist you with everything from Grain Aeration Controllers right through to installation and service.

Control Unlimited - Quote

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Let us know some detail about your situation. One of our friendly team members will get in touch with you to answer your questions and discuss your requirements

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Request a Demo


Contoller Software demo

This demo really isn’t a big commitment or difficult to do. Please see below for our demo process: 

  1. Request a demo using the form below. This will then send us an email with your details. 
  2. Your details are then entered into our system as soon as possible and then immediately assigned to the demo controller. 
  3. You will receive an email with your username and password. 
  4. Head over to and enter the details in the email we sent you. You will have access to the controller we have in our workshop. 
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