Dynex

What Dynex does

Dynex/Rivett Inc. designs and manufactures high-pressure hydraulic components and integrated systems for industrial and mobile machinery, with a stated operating history of over 60 years and products rated up to 20,000 psi (1380 bar). The portfolio centers on a proprietary checkball piston pump architecture (PF and PV series), offered in fixed displacement and pressure-compensated variants, complemented by a full valve family (NFPA D03/D05/D08 directional control valves, HP-series high-pressure valves, 8800-series and VP/H8819 proportional pressure control valves, VST/VM seated and poppet valves, VSW sandwich valves), MF5000 hydraulic motors, remote proportional actuators, and hydraulic power units (QuickPack, motor/pump, and custom systems). Differentiated technologies include Split-Flow pumps delivering up to eight independent flows from a single pump, cold-weather operation to -58°F (-50°C) on the PF500-LT, and IACS-certified marine pressure-compensated pumps.

The company sells through three revenue streams: catalog hardware, custom-engineered systems built at its Ashland Power Units Division, and aftermarket service parts. Go-to-market combines direct technical sales with a worldwide authorized distributor network anchored by SunSource (oil & gas), HTM Group, Berendsen Fluid Power, and FP Hydraulique, plus industry trade show presence (OTC, MRO Americas/Europe, MINExpo, Kormarine, SPE Offshore Europe, Fabtech). Dynex is privately held with no disclosed institutional investors and is structured as a US corporation headquartered in Pewaukee, Wisconsin, with a manufacturing facility in Ashland, Massachusetts, and a sales office in Dubai (opened 2022). Customer base spans oil & gas, aerospace ground support, mining, marine, heavy lifting and structural jacking, steel and aluminum production, power generation, tunneling, and general industrial sectors, with named enterprise engagements in nuclear bolt tensioning (Hydratight) and press retrofit (Enprotech).

Name

Dynex

Legal name

Dynex/Rivett Inc.

Website

https://dynexhydraulics.com

Company type

Private

Founded year

1960

Operating status

Operating

Headcount range

101–250 employees

Short description

Dynex/Rivett Inc. is a privately held US manufacturer of high-pressure hydraulic components and custom power units (up to 20,000 psi), serving oil & gas, aerospace, marine, mining, heavy lifting, and industrial customers worldwide via direct sales and a global distributor network.

Ownership category

akta.pro rank

Product category

High-Pressure Hydraulic Components

NAICS

Fluid Power Pump and Motor Manufacturing (333996), Fluid Power Valve and Hose Fitting Manufacturing (332912), Fluid Power Cylinder and Actuator Manufacturing (333995), Pump and Compressor Manufacturing (33391)

SIC

Pumps & Pumping Equipment (3561), General Industrial Machinery & Equipment (3560)

akta.pro primary industry

Industrial Robots (Articulated, SCARA, Delta, Cartesian) (IMAHAHAA)

Keywords

• High pressure hydraulics
• Piston pumps
• Hydraulic valves
• Hydraulic power units
• Hydraulic motors

Headquarters

HQ city

Pewaukee

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Hydraulic Components Sales: Sale of high-pressure piston pumps, directional control valves, pressure control valves, hydraulic motors, and accessories. Products are sold through catalog items and custom configurations for specific applications.
2. Custom Hydraulic Systems: Design and manufacture of custom hydraulic power units and specialized systems for demanding conditions including high pressure and special fluids applications.
3. Aftermarket Services: Service parts, repair, and support for existing hydraulic equipment including legacy products from 1969.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Dynex manufactures and supplies high-pressure hydraulic components and systems for mobile and industrial machinery applications. The product portfolio includes checkball piston pumps (PF and PV series), directional and pressure control valves, heavy-duty hydraulic motors, electrohydraulic actuators, and custom hydraulic power units. Products are rated up to 20,000 psi and serve oil & gas, aerospace, mining, marine, power generation, steel/aluminum, heavy lifting, and tunneling markets worldwide.

Product overview

Dynex/Rivett Inc. manufactures high-pressure hydraulic components and systems for mobile and industrial machinery. The product portfolio centers on checkball piston pumps (PF series: PF500, PF1000, PF1300, PF2000, PF3000, PF4000, PF4200, PF4300, PF6000), variable delivery pressure compensated pumps (PV4000, PV6000), directional control valves (D03, D05, D05H, D08, D08H, HP03, HP05H patterns), pressure control valves (8800 series spool and poppet, 8820 panel mounted, H8819, VH, VP series), seated and poppet valves (VST, VM), sandwich valves (VSW series), valve subplates and mounting hardware, hydraulic motors (MF5000), electrohydraulic actuators, and power units (QuickPack, custom systems, motor/pump units). Products operate at pressures up to 20,000 psi (1380 bar) and serve markets including oil & gas, aerospace, mining, marine, power generation, steel/aluminum, heavy lifting, and tunneling. The company also offers custom engineering and prototyping services. The product line has been sold worldwide for over 60 years.

Differentiator

Problem solved

Functional benefit

Products and services

• PF500 Series Fixed Displacement Checkball Pumps

Quantifiable outcome

• Split-Flow pumps can replace multiple pumps in a system with one multiple-outlet pump, reducing system complexity and cost
• +2 more outcomes

Named customers7 records

Segments8 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered minor and core.

• HTM GroupminorChannel Partner/ Reseller/ Distributor · 1 May 2022HTM Group became a Dynex distributor, expanding coverage in their designated territory.
• Berendsen Fluid PowerminorChannel Partner/ Reseller/ DistributorBerendsen Fluid Power became a Dynex distributor serving Arkansas territory.
• FP HydrauliqueminorChannel Partner/ Reseller/ DistributorFP Hydraulique is a distributor partner visiting Dynex facilities.
• SunSourcecoreChannel Partner/ Reseller/ DistributorSunSource is a major distribution partner. Dynex exhibited at OTC 2019 at SunSource booth 1039, indicating a strong channel partnership for oil and gas market access.

Scale indicators1 record

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Bosch Rexroth: Global leader in hydraulics (pumps, valves, cylinders, power units) and factory automation. Overlaps with Dynex in pumps, valves, and HPUs but operates at vastly broader scale across general industrial motion.
• Danfoss Power Solutions: Provides hydraulics (pumps, motors, valves), electronic controls, and integrated systems for off-highway and industrial machinery. Competes with Dynex in high-pressure pumps and HPUs with broader product breadth.
• Parker Hannifin: Manufactures hydraulic pumps, valves, motors, and power units for industrial and mobile applications through its Motion & Control Technologies group. Overlaps with Dynex's full component portfolio at significantly larger scale.
• Eaton: Industrial conglomerate whose Hydraulics group produces pumps, valves, cylinders, and power units for industrial, mobile, and aerospace markets, including aerospace fluid conveyance similar to Dynex's aerospace GSE customer set.

Direct peers

• HYDAC Technology: Manufacturer of hydraulic accumulators, valves, filters, and power units, plus fluid conditioning components used in industrial, mobile, oil & gas, and marine applications; peers with Dynex in hydraulic systems for demanding environments.
• Hawe Hydraulik: German manufacturer of high-pressure hydraulic components (pumps, valves, cylinders, power units) up to 700+ bar for special industrial applications. Highly comparable specialty hydraulics positioning to Dynex.
• Yuken Kogyo: Japanese manufacturer of hydraulic pumps, valves, and motors for industrial machinery. Direct overlap with Dynex in piston pumps, directional and pressure control valves for mid- to high-pressure applications.
• Atos SpA: Italian manufacturer of hydraulic valves, pumps, and cylinders including high-pressure proportional and servo valves for industrial machinery. Closely matches Dynex's directional and proportional valve line.
• Moog Inc. Moog's Industrial Group manufactures high-pressure hydraulic pumps, servo valves, and motion control products for aerospace, defense, and industrial machinery, closely matching Dynex's high-pressure specialty hydraulic focus.

Others

• SunSource (SPX Flow) / Hydraulic Supply Co: Channel partner/distributor network providing hydraulic components and systems integration across industrial markets. Listed as Dynex's core distribution partner for oil & gas, making them a value-chain peer in customer-facing motion.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/DynexHydraulics
• YouTubeyoutube.com/channel/UCfn0o8qziiH5CyJQp0kfT6Q

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Dynex