Discover the Questas Difference

Comprehensive hydraulic repair

Welcome to Questas Group – Your Trusted Partner for Hydraulic, Pump, and Engine Solutions

Headquartered in Sydney, NSW, Questas Group is a proudly Australian-owned and trusted partner for hydraulic, pump, and engine solutions. With almost 800 staff across 37 locations Australia-wide, we’ve been a driving force in the industry for over 30 years, serving the mining, construction, agricultural, oil and gas, and general industrial sectors.

At Questas, we pride ourselves on being an industry powerhouse, dedicated to providing engineered solutions to keep businesses in various sectors operating smoothly with minimal downtime.
Questas is more than just a hydraulics business; we are a catalyst for innovation and excellence in the industrial landscape. Our story unfolds through a rich tapestry of achievements and a commitment to providing cutting-edge hydraulic solutions and services.

Australia’s leading provider of hydraulic solutions
#1 independent, Australian-owned hydraulics business
Strong relationships with Tier One hydraulic suppliers
Longstanding, strong relationships with Tier One global suppliers, including; Danfoss, Pall Filtration, Eaton, Stauff, Grundfos, Putzmeister, and Kohler Engines
National wide network
Vertically integrated operations with national distribution network across 37 locations
100 years of combined industry experience
Best-in-class management team with over 100 years of combined industry experience
Unmatched industry expertise
Scale and deep expertise as a group that competitors are unable to match

Our Vision:

We aspire to be the most trusted hydraulics partner for owners & operators of “Mission Critical” equipment and flow processes in ANZ.

Our Mission:

  • Delivering engineered hydraulic and flow control solutions tailored for diverse industrial sectors.
  • Fostering an onshoring trend by bringing engineering expertise to solve complex problems.
  • Continuously expanding our capabilities to meet the growing demands of our customers.

Our Commitment:

For decades, Questas has been committed to excellence, acquiring, nurturing, and revitalising industrial businesses across Australia. We aim to be the solution for all customers with ‘Mission and Time Critical’ needs. Whether they’re mining minerals, building roads and tunnelling, controlling fluid flows, or managing the transfer of hydrogen, Questas Group’s service, product range, engineering expertise, and network are unrivalled in Australia.

Our Purpose:

At Questas, our unwavering purpose is to deliver exceptional services and top-quality products precisely tailored to meet our valued customers’ demands and time-sensitive requirements. We take pride in being the go-to partner for those with critical needs, providing reliable solutions that empower industries across the nation.

We deliver innovative, high quality hydraulic and flow products, services, and solutions with fast turnaround to maximise equipment and process uptime.

Explore the strength and reliability of Questas Group, where expertise meets commitment, and discover a trusted partner for all your hydraulic, pump, and engine solutions.

Our Achievements:

  • Redesign of major OEM hydraulic cylinders leading to significant life extension
  • Built WA’s First Mobile Hydrogen Refuelling Station
  • Designed and built Chemical Injection Skids for Woodside Engergy’s Scarborough Project via McDermott International
  • The first PHPU built in Australia for over a decade for Santos Barossa Project
  • Largest range of service exchange hydraulic cylinders in Australia
  • Providing design, procurement and construction services for the world’s first Hydrilyte Plant – a Safe, Scalable, Low-Cost Hydrogen Storage solution in conjunction with Carbon280
  • Advanced laser cladding techniques to extend the life of high-wear components and recover high wear or high impact parts


Explore the essence of Questas, where innovation meets expertise, and join us in shaping the future of hydraulics.

Hydraulic Division - Questas Hydraulics:

Fluid Power Excellence Nationwide

Questas Hydraulics is a nationwide network with a comprehensive range of products,
Custom hydraulic cylinders
services and technical solutions, equipped to deliver prompt and fully integrated fluid power solutions to a wide range of customers and industries Questas Hydraulics offers a range of services, products and solutions, including;
  • Large and specialist cylinder service and rebuilds up to 12m in length
  • Best-in-class workshops, including ability to turn and hone up to 8m,tension up to 90,000nM, submerge arc weld and diamond grind
  • Reliability engineering through sophisticated software simulation services
  • Advanced surface technology solutions, incl four high-powered,fully automated laser cladding systems, nickel sulphamate and chrome plating
  • Advanced robotic manufacturing capabilities for cylinders and components
  • Comprehensive hydraulic repair
  • Products from Tier 1 global suppliers including Danfoss, Pall Filtration and Stauff
  • Design and build hydraulic systems, including power units, filtration and lubrication units
Questas Hydraulics operates through 14 main companies;
  • Swanson, Berendsen, Harchrome Sales, Meadow Industries and Isasdraulics offer a full range of hydraulic services with a focus on cylinder repair for blue chip customers
  • Nordon Cylinders designs and manufactures cylinders for OEM’s
  • Aussie Fluid Power designs, builds and installs high pressure hydraulics and pneumatic systems
  • The Hydraulic Warehouse focuses on distributing Tier 1 hydraulic products
  • Surface technologies: Laser cladding
    Advance surface technologies
  • Swanson, Hardchrome Sales, CCA Harchrome and AST offer advanced surface technologies including laser cladding, nickel sulphamate chroming and traditional hardchrome finishes
  • The Winnellie Group companies are a diversified family of companies focused on supplying, servicing and supporting some of Australia’s most important industries, including Oil & Gas, Mining, Marine, Petrochemical and more. They provide high-pressure hydraulics, valve and process supplies and a large range of associated tools and equipment for industrial use all across Australia.

Water Division - Questas Water:

Expertise in Every Drop
Irrigation system designing
Questas Water offers a range of products and solutions, including:
  • Complete irrigation solutions including pump stations, bore drilling, irrigation and sprinkler equipment
  • Complete pump solutions, including a broad range of pumps & brands, and a
    network of service & repair centres
  • Ability to deliver large water infrastructure solutions to high-profile customers
  • Pump manufacture: Stalker Pumps (a subsidiary of Malcolm Thompson Pumps) is the only industrial water pump supplier in Australia with an on-site foundry enabling complete control over the manufacturing process
  • Irrigation installation and services
  • Well-equipped and resourced service and maintenance teams
Our Water Division operates through three main companies:
  • Water Dynamics - specialises in irrigation design, installation and service / repair solutions, and comprises a network of seven trade and retail stores
  • Malcolm Thompson Pumps - specialises in pump package systems
  • EPG Engines - distributes a range of high-quality stationary petrol and diesel engines used within water division and supplied to customers
At Questas Group, we are committed to excellence in our Water and Hydraulics Divisions, driven by our passion for delivering reliable, innovative,and sustainable solutions to meet the ever-evolving needs of our valued customers.

For nearly 20 years Questas Group has successfully acquired, operated and transformed niche industrial businesses across Australia.

We are a privately owned enterprise with diverse business operations in the following areas:

Hydraulics

across a wide range of industries including Mining, Agricultural, Marine, Transport, Construction, Manufacturing, Industrial, Automotive, Earth-moving and Mobile Equipment sectors. The scope of our operation includes:

Pumps

Across a wide range of industries including Mining, Utilities, Industrial, Agriculture, Manufacturing, Construction and Municipal. The scope of our operation includes:

Engines

Across a wide range of industries including Mining, Utilities, Industrial, Agriculture, Manufacturing, Construction and Municipal. The scope of our operation includes:

Irrigation

Across a wide range of industries including Mining, Utilities, Industrial, Agriculture, Manufacturing, Construction and Municipal. The scope of our operation includes:
The Group operates nationally with a long-term commitment to our customers in each market served. We interact with and develop close relationships with our customers in order to be able to meet and exceed their expectations. This customer-centric approach has enabled Questas Group to continue to expand its operations, becoming leaders in our respective fields and supplying to some of Australia’s largest and most influential corporations and projects.