Certified Steer Cylinder Upgrade – Engineered Reliability for Komatsu 830E & 930E Haul Trucks

a yellow komatsu truck

Enhancing Safety and Performance in Australian Mining

Operating in some of the harshest environments in the world, Australian open-cut mines demand hydraulic systems that deliver uncompromising reliability. Swanson Industries Australia has developed a Certified Steer Cylinder Upgrade engineered specifically for Komatsu 830E and 930E haul trucks, ensuring precision steering control and long-term performance under extreme mining conditions.

This innovation redefines hydraulic safety and durability — helping miners achieve greater uptime, lower maintenance costs, and safer operations.

Want to see the full technical details and real-world results?

Download the complete brochure and case study to learn how Swanson’s certified hydraulic upgrades are improving reliability across
Australian mine sites.

Precision Engineering Meets Australian Standards Certified steer cylinder upgrade for Komatsu 830E and 930E haul trucks

Every upgraded Swanson steer cylinder is built to exceed MDG41 and AS3990 mechanical

equipment standards, ensuring compliance with Australian mining safety requirements.

  • Material: AS1444/4140(T) steel (665 MPa yield, 850 MPa tensile strength)
  • Pressure limit: 3000 psi (20.7 MPa)
  • Testing: Rod loading, bending stress, compressive load, and Finite Element Analysis (FEA)
  • Temperature resistance: Up to 260°C

High-temperature seal kit system for mining hydraulic steer cylinders

 

These certified upgrades ensure structural integrity under the most demanding field conditions, guaranteeing safe and reliable steering performance in Komatsu haul trucks.

 

Advanced Seal Kit Upgrade

The new Seal Kit System is designed for longevity, heat resistance, and contamination control:

  • Wiper: 820 umbrella-style (361 material) – superior contamination resistance
  • Rod Seal: High-temp polyurethane with HNBR energizer (up to 150°C)
  • Buffer Seal: R16 Viton energizer for pressure spike protection
  • Piston Seal: HNBR with compression set resistance
  • Static Seal: 90 Duro Viton O-ring with Teflon backup (up to 260°C)

Benefits:

  • Handles pressure spikes up to 700 bar
  • High temperature and extrusion resistance
  • Reduced contamination and seal wear
  • Extended service life
Single-weld barrel design for reinforced mining steer cylinder
Upgraded Barrel. Single weld design.
 

Reinforced Design for Maximum Reliability

Swanson’s engineering upgrades target known failure modes in OEM cylinders:

  • Single-weld barrel: Eliminates stress risers and enhances fatigue strength.
  • One-piece rod and clevis: Removes weak weld points, improving load alignment.
  • Heavy-duty gland: Extended bearing length protects seals from side-load damage.

This design innovation results in a safer, more robust, and longer-lasting steer cylinder, capable of enduring Australia’s toughest mining environments.

 

Setting the Standard for Mining Hydraulics

Swanson Industries Australia continues to lead in hydraulic engineering for the mining sector, offering certified solutions that minimise downtime, improve safety, and optimise fleet performance.

 

Interested in the complete data and test results?

View or download the full brochure and case study here to see how Swanson’s engineering innovation is helping mining operations run safer, longer, and more efficiently. If you have further questions, contact us!