Contact Hydraulic Online
Have a question about hydraulic cylinder components, manufacture, materials, machining, troubleshooting or failure? Send us the details and we will point you towards the most relevant guidance or practical support.
Include the cylinder application, the problem you are seeing and any useful operating information you already have.
You do not need to know the technical terminology. Describe what the cylinder does and what has changed.
What is the cylinder used for — lifting, tipping, steering, clamping or another function?
What is the symptom — leakage, drift, scoring, sticking, heat or repeat seal failure?
When does the problem appear — continuously, under load, when hot, at the end of stroke or after a recent repair?
Tell us about your hydraulic cylinder enquiry
Choose the closest enquiry type and describe the application or problem. After submitting, you will be redirected to the Hydraulic Online thank-you page.
What can you contact Hydraulic Online about?
Use the form for technical questions, guidance around cylinder engineering or when you are trying to understand the likely cause of a hydraulic cylinder problem.
Cylinder Components
Questions about barrels, piston rods, pistons, glands, end caps, seals or wear components.
Manufacturing & Specification
Questions around cylinder manufacture, replacement cylinders, dimensions and build considerations.
Materials & Surface Protection
Guidance around barrel materials, piston rod protection, corrosion and seal materials.
Machining & Tolerances
Questions about bore condition, rod finish, seal grooves, fits, guidance and precision machining.
Failure Diagnosis
External leakage, drift, scoring, overheating or repeat hydraulic cylinder failures.
Repair & Refurbishment
Questions about whether damaged components, rods, barrels or seals may require repair or replacement.
You may already find what you need in the knowledge hub
These are the best starting points for the most common hydraulic cylinder questions.
Hydraulic Online explains the engineering. Completely Hydraulic handles real-world cylinder work.
If your enquiry relates to an actual hydraulic cylinder that needs manufacturing, repair or refurbishment, Completely Hydraulic provides practical workshop support.
- Bespoke and replacement hydraulic cylinder manufacture
- Hydraulic ram and cylinder refurbishment
- Rod replacement and machining
- Seal and internal component replacement
Use the Hydraulic Online form above and describe the situation. If the enquiry is better suited to practical workshop support, the information you provide will help establish the next route.
Contact Hydraulic Online FAQs
What information should I include in a hydraulic cylinder enquiry?
Include what the cylinder does, the fault or question, when the problem occurs, the operating environment and any useful repair history or dimensions you already have.
Can I ask about a hydraulic cylinder fault?
Yes. Describe the symptoms such as leakage, drift, scoring, sticking or overheating. The information can then be compared with the relevant troubleshooting and failure guidance.
Can I ask about hydraulic cylinder manufacture?
Yes. Questions can relate to cylinder specification, materials, machining, tolerances, components and the manufacturing process.
What if I do not know the technical name of the cylinder part?
That is not a problem. Describe where the component is located, what it does or what appears damaged. The Hydraulic Cylinder Parts guide may also help identify the component.
Where can I find immediate hydraulic cylinder troubleshooting information?
Start with the Hydraulic Cylinder Troubleshooting Guide or the Why Hydraulic Cylinders Fail guide, both of which explain common symptoms and likely causes.