Hydraulic Seals Australia (HSA) is a leading Australian supplier of hydraulic seals, O-rings, seal kits and custom-engineered sealing solutions, proudly supporting mining, construction, manufacturing and heavy industry since 1999.
Now part of the Diploma Australia Seals (DAS) Group, HSA combines trusted local expertise with the scale and capability of a national network, strengthening our ability to deliver high-quality sealing products, fast turnaround times and reliable technical support across Australia.
We specialise in supplying OEM and aftermarket sealing solutions designed to reduce downtime, improve equipment performance and extend the life of hydraulic systems.
Hydraulic Seals, O-Rings & Sealing Solutions Australia
HSA is recognised as a trusted partner for hydraulic sealing solutions in Australia, offering a comprehensive range of products for demanding applications across:
Through strong partnerships with leading global manufacturers, we supply proven sealing products from brands including Hercules, Martin Fluid Power (MFP), Carco, Trelleborg, Accofluor and ACM.
With over 28,000 stocked line items, we ensure fast access to critical components when you need them most.
With branches across Melbourne West, Melbourne East, Sydney, Newcastle, Brisbane, Mackay and Adelaide, HSA provides responsive, on-the-ground support backed by national distribution capabilities.
Our in-house manufacturing and engineering capabilities allow us to deliver:
Our team brings over 100 years of combined experience in hydraulic seal design, manufacturing and application engineering, ensuring every solution is fit-for-purpose.
HSA offers advanced CNC machining of hydraulic seals across all branches, enabling rapid production of custom parts to suit your application.
Capabilities include:
This allows us to deliver custom sealing solutions in Australia with minimal lead times, helping reduce costly downtime.
Rotary Seals Australia (RSA), a division of HSA, is a specialist supplier of rotary seals, shaft seals and pneumatic sealing products.
RSA provides both off-the-shelf and custom solutions, including:
With national coverage and deep technical expertise, RSA supports a wide range of industrial sealing applications across Australia.
HSA is a leading supplier of hydraulic seal kits for earthmoving and mobile equipment, offering a reliable alternative to OEM supply.We provide:
Our premium XSK hydraulic seal kits are engineered using high-performance materials for off-highway equipment, including:
These solutions are designed to reduce downtime, improve maintenance efficiency and lower operating costs.
Industries & Equipment We Support
HSA supplies sealing solutions for a wide range of industries and equipment, including:
Mining & Earthmoving Equipment
Komatsu, Caterpillar®, Hitachi, Liebherr
Rock Breakers & Drilling Equipment
Epiroc, Sandvik, Montabert, Rammer
Hydraulic Pumps & Motors
Danfoss, Bosch Rexroth, Parker, Poclain
Industrial Cylinders & Hydraulic Systems
Hydro-Line, Vickers, Parker
Hoists, Actuators & Tail Lifts
Hyva, Palfinger, Helac, D’Hollandia
At HSA, we focus on delivering more than just products, we provide complete sealing solutions backed by technical expertise, fast delivery and reliable service. Whether you need hydraulic seals, O-rings, seal kits or custom sealing solutions, HSA is your trusted partner for keeping equipment running and minimising downtime across Australia.
The HSA customer base extends into a broad range of industries, including numerous market leaders. This diverse and demanding client base challenges us to evolve and adapt in order to consistently provide outstanding value to all of our customers. You will appreciate we have the necessary experience to understand your requirements and will work on your behalf to meet your expectations.
