RHK provides reliable and sustainable solutions for your essential operations. We design, manufacture, and repair hydraulic cylinders for customers globally. For thirty years we have developed an adaptive engineering and production process to provide a turnkey solution for industry’s toughest jobs.

Equipment manufacturers demand a performance product with minimal downtime required for maintenance. In addition, they need it customized to their specific application while operating safely and efficiently. Our custom engineering and design capabilities provide a competitive solution with the additional benefit of a short manufacturing lead time.

Custom Hydraulic Cylinder P4060997 e1589245051872

Manufacturing: From Prototype to Production

From a mere concept to a complete set of specs, our technical sales team takes time to fully understand your project requirements. Our engineering team, equipped with the latest in CAD and digital modelling technology, will develop a solution that not only meets your requirements, but exceeds them. Every design is put through an intensive stress analysis to eliminate structural failure, ensuring your equipment operates safely and effectively.

Through diligent continuous improvement, we have developed an agile manufacturing operation that caters to both prototypes and full production runs. For every work order, we streamline a dedicated manufacturing process ensuring work orders are delivered to the highest quality standard and with minimal lead time.

Our in-house shop capabilities include:

Cylinders 54321M Harbour 3 768x576 1

Remanufacturing: Optimizing Existing Equipment

In addition to custom manufacturing, we offer dependable repair service for all makes of hydraulic cylinders and components. From a basic reseal and recertification to complete system analysis and rebuild, our complete in-house operation will minimize both equipment downtime and service cost.

We constantly seek opportunities to improve equipment performance and durability. Beyond part replacement, our re-engineering services can also modify an existing design for enhanced:

  • Performance (eg. cushions added for smooth operation)
  • Reliability (eg. thicker chromed surfaces for longer life)
  • Operator safety (eg. pilot operated check valve integration)
REPAIR Cylinders BEFORE 6 1024x634 1

In addition, we can provide material upgrades and surface coatings to extend the life of your equipment. Sealing systems are commonly improved for longer component life or for use in extreme climates. Worn parts can often be salvaged and upgraded for better performance while reducing the overall repair cost.

When the demands of your equipment change, we are experienced in modifying hydraulic cylinders and components for different use. Common modifications include changing stroke length and conversion of a single acting cylinder to double acting.

Social Sharing

Partner with Us

Since 1990, RHK has been manufacturing hydraulic cylinders for a wide range of industries. Our Sales and Engineering team has extensive experience and is standing by to develop a custom solution for your application.

Your First Call for the


Skip to content