Sterling Hydraulics

What Sterling Hydraulics does

Sterling Hydraulics designs and manufactures high-performance hydraulic screw-in cartridge valves and custom manifold systems, operating from its UK headquarters in Crewkerne, Somerset (founded in the 1960s) and a US entity in Elk Grove Village, Illinois. The company is a wholly-owned subsidiary of Parker Hannifin, a Fortune 250 motion and control conglomerate. Its core product range spans pressure control valves, flow control valves, load control valves, solenoid valves (including proportional variants), and bespoke custom manifold blocks that integrate cartridges into Hydraulic Integrated Circuits (HICs); the portfolio also extends to Hydraulic Power Units (HPUs), pumps (gear, vane, piston), actuators, hoses, fittings, and aftermarket maintenance and emergency repair services.

The underlying technology centres on proprietary screw-in cartridge valve architecture and customizable manifold design, with stated differentiators in miniaturization/form factor, accuracy/precision, and safety/security architecture (e.g., zero-leakage counterbalance locking for suspended loads). Sterling goes to market through a global distribution network of 30+ distributors across Europe, Africa, Pacific Rim, Middle East, North America, and South America, supplemented by direct engineering and application support, and a customer portal for account management and technical documentation. Pricing is quote-based and not publicly disclosed, consistent with B2B specification-driven industrial sales.

End markets served include construction and earthmoving (excavators, cranes, loaders, drilling), agriculture and forestry, mining and tunneling, marine and offshore (winches, steering, subsea robotics), material handling (manlifts, aerial work platforms), military, and industrial machinery (presses, injection molding). The company holds BSI quality management registration and Investor in People accreditation, and maintains BFPA and NFPA industry association memberships. No revenue, headcount, AI/ML capabilities, or recent dated strategic events are disclosed in the available source material.

Name

Sterling Hydraulics

Legal name

Sterling Hydraulics Ltd

Website

https://sterling-hydraulics.co.uk

Company type

Private

Founded year

1960

Operating status

Operating

Short description

Sterling Hydraulics designs and manufactures high-performance hydraulic screw-in cartridge valves and custom manifold systems for industrial OEMs worldwide, operating as a wholly-owned subsidiary of Parker Hannifin and serving construction, agriculture, marine, mining, military, and material-handling end markets.

Ownership category

akta.pro rank

Product category

Industrial Hydraulic Components

NAICS

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

SIC

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

akta.pro industry

PRIMARYIMAHAGAF

Proportional & Servo Hydraulics (Electrohydraulic Valves, Servo Systems)

Industrials, Manufacturing & Construction/Industrial Machinery & Heavy Equipment/Fluid Power & Motion Control Equipment

SECONDARYIMAHAGAB

Hydraulic Power Units & Systems (HPUs, Manifolds, Integrated Circuits)

Industrials, Manufacturing & Construction/Industrial Machinery & Heavy Equipment/Fluid Power & Motion Control Equipment

SECONDARYIMAHAGAA

Hydraulic Components (Pumps, Motors, Cylinders)

Industrials, Manufacturing & Construction/Industrial Machinery & Heavy Equipment/Fluid Power & Motion Control Equipment

SECONDARYIMAHAGAH

Hoses, Tubing & Fittings (Hydraulic/Pneumatic Lines & Connectors)

Industrials, Manufacturing & Construction/Industrial Machinery & Heavy Equipment/Fluid Power & Motion Control Equipment

Keywords

• Hydraulic cartridge valves
• Custom manifold blocks
• Hydraulic power units
• Screw-in cartridge valves
• Fluid power components

Headquarters

HQ city

Crewkerne

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hydraulic Component Sales: Sale of hydraulic cartridge valves including pressure control valves, flow control valves, load control valves, solenoid valves, and proportional solenoid valves.
2. Custom Manifold Blocks: Design and manufacture of custom hydraulic manifold blocks tailored to customer requirements.
3. Hydraulic Power Units (HPUs): Design, supply, installation, and maintenance of customized hydraulic power units comprising reservoir, pump, electric motor, and necessary controls.
4. Aftermarket Services: Maintenance, fault-finding, and emergency repair services for hydraulic systems.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Sterling Hydraulics designs and manufactures high-performance screw-in hydraulic cartridge valves (pressure, flow, load, solenoid, and proportional solenoid types) plus custom hydraulic manifold blocks and complete hydraulic systems including Hydraulic Power Units, pumps, and actuators. Products are tailored to specific OEM and end-user application requirements across construction, agriculture, marine, mining, material handling, and industrial machinery sectors worldwide.

Product overview

Sterling Hydraulics is a world-renowned designer and manufacturer of hydraulic screw-in cartridge valves and custom manifold systems, operating as part of the Parker Hannifin family. The core product portfolio includes hydraulic cartridge valves (pressure control, flow control, load control, solenoid, and proportional solenoid valves), complemented by custom manifold blocks (CMBs) that integrate these cartridges into Hydraulic Integrated Circuits (HICs). The company also offers complete hydraulic systems including Hydraulic Power Units (HPUs), pumps (gear, vane, and piston types), actuators (cylinders and hydraulic motors), and associated components (hoses, fittings, and tubing). In the UK (Crewkerne, Somerset), the company designs and manufactures pressure and flow control valve cartridges, while the USA facility (Chicago) specializes in solenoid valves including proportional solenoid valves. The product range spans Cavities and Line Bodies, Check valves, Directional valves, Diverter valves, Flow control valves, Load control valves, Pressure regulating valves, Relief valves, Sequence valves, Shuttle Valves, and Solenoid valves.

Differentiator

Problem solved

Functional benefit

Products and services

• Hydraulic Cartridge Valves High-performance screw-in cartridge valves (pressure control, flow control, load control, directional, diverter, sequence, shuttle, and proportional variants) that provide precise hydraulic fluid control for OEM and industrial end-users.
• Custom Manifold Blocks Custom-designed manifold blocks (Hydraulic Integrated Circuits) engineered and fabricated to suit specific customer hydraulic requirements, integrating cartridge valves to reduce leak points and installation time.
• Hydraulic Power Units (HPUs) Complete custom hydraulic power units combining reservoir, pump, electric motor, and controls, designed and built to specific flow and pressure requirements for industrial machinery.
• Hydraulic Pumps Devices converting mechanical energy into hydraulic energy, available in Gear Pumps, Vane Pumps, and high-pressure Piston Pumps configurations for industrial systems.
• Solenoid Valves (including Proportional Solenoid Valves) Rapid, reliable electrical control valves available in 2-way, 3-way, and 4-way configurations with Poppet and Spool designs; proportional versions offer infinite adjustment of flow and pressure via electronic input with high resolution and low hysteresis.
• Hydraulic Actuators Components converting hydraulic energy into mechanical force, comprising hydraulic cylinders for linear motion (pushing/pulling) and hydraulic motors for rotational motion (torque and speed).
• Cavities and Line Bodies Precision-machined cavities and line bodies providing the standardized mounting interface for screw-in cartridge valves in customer hydraulic circuits.
• Aftermarket Hydraulic Services Maintenance, fault-finding, and emergency repair services for hydraulic systems, provided by certified engineers as full lifecycle support for installed components.

Segments7 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered flagship and core.

• Parker HannifinflagshipOthersSterling Hydraulics is part of the Parker Hannifin family. As part of this global industrial conglomerate, their technology is supported by a worldwide network of distributors and service partners. Parker Hannifin is a Fortune 250 company specializing in motion and control technologies.
• 30+ Global DistributorscoreChannel Partner/ Reseller/ DistributorGlobal distribution network with over 30 distributors in Europe, Africa, Pacific Rim, and Middle East, plus an extensive network across North and South America providing effective distribution, engineering and application assistance.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Emerging players

• Moog (Industrial): Moog is known for high-performance motion control and servo-hydraulic valves used in industrial, energy, and simulation applications, with selectively overlapping proportional/servo valve technology relevant to Sterling’s proportional solenoid valve portfolio.

Broad incumbents

• Parker Hannifin: Parker Hannifin is Sterling's parent company and a global leader in motion and control technologies; Parker's broader hydraulic valve, pump, and integrated-circuit portfolio overlaps significantly with Sterling’s products across global OEM channels.
• Danfoss (Power Solutions): Danfoss Power Solutions manufactures hydraulic components including cartridge valves, proportional valves, and integrated systems for off-highway machinery, positioning it as a broad incumbent competitor across Sterling's served segments.
• Eaton (Hydraulics): Eaton's Hydraulics Group provides valves, pumps, cylinders, and integrated hydraulic systems across mobile and industrial markets, overlapping directly with Sterling's product lines through its screw-in cartridge and directional valve offerings.
• Bosch Rexroth: Bosch Rexroth is a global incumbent in industrial and mobile hydraulics with a broad portfolio of valves, pumps, cylinders, and electronic controls; it competes with Sterling across multiple segments but at much broader scale and with stronger R&D resources.

Regional players

• Yuken Kogyo: Yuken Kogyo (Japan) manufactures hydraulic valves, pumps, and power units with strong presence across Asian OEMs; it is a regional competitor with comparable cartridge and modular valve technology though primarily competing in Asia rather than Sterling's UK/US core.

Direct peers

• Bucher Hydraulics: Bucher Hydraulics designs and manufactures hydraulic valves, pumps, and power units for mobile and industrial applications, competing with Sterling in custom hydraulic solutions and cartridge-style valve offerings for off-highway equipment.
• HydraForce: HydraForce designs and manufactures hydraulic cartridge valves, custom manifolds, and electrohydraulic controls, directly competing with Sterling in mobile and industrial hydraulic markets with comparable product architecture and customization capabilities.
• Sun Hydraulics: Sun Hydraulics (now part of Helios Technologies) is the closest direct competitor to Sterling, also specializing in screw-in cartridge valves and integrated manifold solutions for hydraulic systems, serving similar mobile equipment and industrial OEMs.
• Atos (Hydraulic Valves): Atos specializes in hydraulic valves including proportional, servo, and cartridge valves for industrial and mobile applications, making it a direct technology and channel peer to Sterling in high-precision electrohydraulic control.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 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 Sterling Hydraulics