Hydraulic Pumps, Motors & Valving: Precision Repair & Maintenance for Core Hydraulic Components

High-performance pumps, motors, and valving for every application

At the heart of every hydraulic system are the pumps, motors and valves. These critical components generate, convert and direct hydraulic power and are key to the productivity and reliability of your equipment. The type of hydraulic pump or motor you choose will depend on the task and operational requirements as different types are suited to different applications.

Commitment to Quality
End‑to‑End Capability
Trusted Reputation
Safety & Compliance

At K&R Hydraulics we specialise in the repair, testing and maintenance of hydraulic pumps, motors and valving. With over 38 years experience in Newcastle and the Hunter Region our skilled team and state of the art facilities ensure your core hydraulic components including hydraulic cylinders are restored to “as new” operating condition, minimising downtime and extending service life.

Our Hydraulic Pumps and Motors & Valving Services

K&R Hydraulics have a wealth of knowledge and expertise in rebuilding and testing a wide range of OEM and branded components. We continually update our repair techniques and services to meet the changing needs of our customers and industry standards. Our services include:

We repair and service all types of hydraulic pumps including piston pumps), gear and vane pumps. Every repair follows a strict protocol, components are precision ground, flat and conical lapped and chemically/ultrasonically cleaned. All reassembled pumps are tested on our advanced test benches to OEM specifications for pressure, flow and efficiency.

From low speed high torque motors to high speed motors we repair and refurbish.Post repair hydraulic motors are dynamically tested to simulate operational conditions to ensure peak performance and reliability.

We repair and calibrate directional control valves, pressure relief valves, flow control valves and proportional valves. Our technicians diagnose wear, replace critical seals and spools and calibrate to ensure accurate control and responsiveness, preventing system inefficiencies and damage.

Technical information and specifications are provided to customers to assist in making informed decisions about their hydraulic components.

The K&R Difference: Precision, Purity & Performance

Choosing K&R Hydraulics for your pumps, motors and valving repairs means you’re investing in quality and reliability. Our commitment to excellence is embedded in our processes and facilities:

Our purpose built facility in Thornton, NSW has all the specialised equipment and controlled environments required for sensitive hydraulic component work. All repaired components are tested to ensure they can withstand the harshest conditions found in industrial applications.

We have a wealth of knowledge of the most common failure modes and repair techniques across a wide range of hydraulic pump, motor and valve manufacturers and models.

We use automated equipment to precision grind, flat lap and conical lap critical pump and motor components. This process perfectly restores sealing surfaces and geometry for “as new” performance and extended component life.

Our state of the art chemical and ultrasonic cleaning equipment allows us to remove contaminants and restore corroded components in most cases bringing them back to “as new” condition, reducing the need for costly replacements.

All critical components are assembled and tested in a filtered clean-air environment maintained to ISO 14644 standards. This is essential for preventing microscopic contamination which is a leading cause of premature failure in hydraulic pumps and motors.

Our test bench allows us to log and plot equipment performance data in real-time. This includes flow, pressure, torque, speed and efficiency under simulated load conditions.

Upon completion we provide customers with detailed performance reports. This documentation certifies a rebuild and provides verifiable data for warranty requirements, maintenance planning and full servicing history.

We ensure all repairs are done and components tested to meet or exceed original equipment manufacturer (OEM) specifications so you can have confidence in the performance and life of the component.

We don’t just repair; we reduce your total maintenance costs by identifying the root cause of failure and implementing long lasting solutions. Our repair solutions are tailored to the specific requirements and applications of each customer to fit your operational needs.

Driven by Innovation.
Defined by Excellence.

Our team are available to offer their expertise across the country. For more information on how we can service your needs, contact us today.

Industries We Service

Reliable hydraulic pumps, motors and valving is critical across many demanding industries. K&R Hydraulics supports Australia’s top tier companies in industries where precision and uptime is non-negotiable:

  • Mining: Excavators, bulldozers, haul trucks and drilling equipment.
  • Aluminium & Steel: Rolling mills, presses and casting lines.
  • Logistics: Material handling equipment, forklifts.
  • Agriculture: Farming machinery, harvesters and irrigation systems.
  • Infrastructure: Heavy construction equipment, roadbuilding machinery and material movement systems.

FAQs About Pumps, Motors & Valving Repairs

We repair a wide range of pumps (piston, gear, vane), motors (orbital, piston, gear ,vane) and control valves (directional, pressure, flow, proportional) from all major global manufacturers.
Our repair process includes cleaning, precision machining and lapping, assembly in an ISO 14644 clean-air environment and testing on our state of the art test benches to certified OEM specifications. We also provide test reports for transparency.
Contamination is the number one cause of hydraulic component failure. Our clean-air environment (ISO 14644 certified) virtually eliminates the introduction of microscopic particles during critical assembly, extending the life and reliability of your repaired components.
Yes. Our test bench logs and plots full performance data so we can provide you with a report documenting the ‘as new’ capabilities of your repaired pump, motor or valve. This report is great for service history.
Yes. We do in-depth failure analysis. We aim to find the root cause of the failure not just repair the symptoms so we can recommend solutions or modifications to prevent future recurrences and reduce your maintenance costs.
We stand behind our work. Contact our sales team to discuss our warranty terms for specific repairs.
Buying or purchasing hydraulic pumps, motors or valves is easy. Contact our team and they will be happy to assist.

For a quote, advice or to discuss your hydraulic pump, motor or valving repair and maintenance needs contact our team today.

Our Services

From precision hydraulic repairs and on-site servicing, to custom engineering, and reliable equipment hire, we provide end-to-end hydraulic solutions. Our team delivers high-performance components and tailored services to keep your systems running smoothly and efficiently.

Our Commitment

“Our commitment to innovation, quality and customer service has been a hallmark of K&R Hydraulics since the company’s inception and remains our focus today.”

Rob Harding
Managing Director

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