Business Details
Precision Hydraulic Components for Demanding Applications
Dynex/Rivett has been a leader in hydraulic component manufacturing for over six decades, delivering reliable solutions for mobile and industrial machinery. Our expertise spans high-pressure piston pumps, directional and pressure control valves, heavy-duty motors, and customized hydraulic systems designed for extreme conditions. With a global presence, we serve diverse industries including aerospace, mining, marine, and energy. Our commitment to innovation is reflected in patented technologies like the Checkball pump, engineered to withstand contamination, pressure spikes, and temperatures as low as -58F. We prioritize customer-specific solutions through our Ashland, Massachusetts facility, which specializes in high-pressure power units and complex fluid systems. Our ISO 9001-certified processes ensure quality across 15,000 psi-rated products, while our engineering team develops tailored configurations for applications ranging from hydroform presses to offshore drilling equipment.With manufacturing facilities in Wisconsin and Massachusetts, plus sales offices in the UK and UAE, we combine local responsiveness with international scale. Our technical support team provides application-specific guidance through worksheets and direct consultation. From standard components to complete hydraulic power units, we maintain rigorous quality control while adapting to special fluid requirements including water glycol and phosphate esters. Our vertical integration capabilities reduce system complexity through multifunction valve designs and manifold-mounted solutions that eliminate redundant components.
Services
Hydraulic Pumps
Pressure Valves
Power Units
Custom Systems
Motor/Pump Units
Manifold Assemblies
Aerospace Hydraulics
Mining Equipment
Marine Systems
Test Stands
Highlights and features
- We offer 60+ years of specialized expertise in high-pressure hydraulic systems
- Our ISO 9001-certified manufacturing ensures consistent quality across 15,000 psi-rated products
- We develop custom solutions for extreme environments including -58F cold weather operations
- Our global network provides local support across six continents
- We engineer contamination-resistant Checkball pump technology proven in demanding applications
Associations and certifications
- ISO 9001
Services
High-Pressure Pumps
Our high-pressure piston pumps deliver reliable performance in extreme conditions. Engineered for pressures up to 20,000 psi, these pumps feature contamination-resistant designs and operate effectively in temperatures as low as -58F. The Checkball technology reduces internal loading while maintaining efficiency with low-lubricity fluids. Applications include aerospace systems, mining equipment, and offshore drilling operations requiring exceptional durability.
Custom Power Units
Tailored hydraulic power units are designed for specialized applications across industries. Our Ashland facility develops systems with flows up to 200 gpm and pressures reaching 15,000 psi, incorporating stainless steel construction and special fluid compatibility. These units integrate variable frequency drives and pressure control systems for test stands, pipe jacking operations, and high-torque tool applications requiring precise performance parameters.
Pressure Control Valves
Precision-engineered pressure control valves manage hydraulic systems in demanding environments. Our offerings include 15,000 psi-rated proportional relief valves and combination units providing directional, pressure, and unloading control. These components ensure stable operation in aerospace ground support equipment, high-pressure test stands, and specialized fluid applications through electro-hydraulic actuation and durable construction.
Extreme Environment Hydraulics
Hydraulic components designed for extreme operating conditions include cold-weather pumps functional to -50C and contamination-tolerant systems for mining and drilling applications. Our engineers develop solutions using materials compatible with special fluids like phosphate esters while maintaining performance under pressure spikes and continuous cycling in harsh industrial environments.
Custom Manifold Systems
Modular manifold assemblies consolidate multiple hydraulic functions into single units, reducing system complexity and potential leak points. These customized solutions integrate pressure control, directional valves, and flow management components in compact configurations for mobile equipment and industrial machinery requiring space-efficient, high-reliability hydraulic systems.
Questions
What industries does Dynex serve?
We provide hydraulic solutions for aerospace, energy, mining, marine, industrial manufacturing, and specialized equipment sectors worldwide.
Can Dynex systems handle extreme temperatures?
Yes, our components operate effectively from -58°F (-50°C) to high-temperature industrial environments using specialized materials.
Are custom hydraulic solutions available?
Our engineering team develops tailored systems including 15,000 psi-rated configurations and special fluid-compatible designs.
What certifications does Dynex hold?
We maintain ISO 9001 quality management certification across our manufacturing operations.
How does Dynex support international customers?
We have sales offices in the UK and UAE with distribution partners across six continents for local support.
What makes Checkball pumps unique?
Our patented design offers superior contamination resistance, bi-directional rotation, and single-fluid operation without secondary lubrication.
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