Hydraulic Seals Australia

Hydraulic Seals Australia (HSA) is a leading Australian supplier of hydraulic seals, O-rings, and custom-engineered sealing solutions, serving the mining, construction, manufacturing, and heavy industries since 1999. As part of the Diploma Australia Seals (DAS) Group, HSA combines local expertise with a national network to deliver high-quality sealing products, fast turnaround times, and reliable technical support across Australia. The company specializes in OEM and aftermarket sealing solutions designed to reduce downtime, improve equipment performance, and extend the life of hydraulic systems. HSA offers a comprehensive range of products for demanding applications in earthmoving equipment, hydraulic systems, industrial machinery, and mobile equipment, supported by strong partnerships with global manufacturers. With over 28,000 stocked line items, HSA ensures quick access to critical components, complemented by in-house manufacturing, engineering, and advanced CNC machining capabilities for custom seals and prototyping. Their team brings over 100 years of combined experience in hydraulic seal design, manufacturing, and application engineering.