- 5 August 2026
- In Hydraulics

When a hydraulic cylinder starts leaking, losing power or moving unevenly, the question most people want to know is, can it be repaired, or does the whole cylinder need replacing? And, while we’d love to say a quick repair is always possible, in some cases, it’s not the best long-term option.
Most hydraulic cylinder failures come back to a combination of wear and tear, and poor maintenance.
Seals wear out, rods become scored, bent or corroded, and dirty hydraulic fluid damages internal parts. Add any overloading, pressure spikes or environmental damage, and a weakened cylinder will be pushed beyond what it can handle.
In our experience, a cylinder will usually give you a few clues that there’s trouble coming before it fails completely:
If hydraulic fluid is spraying out forcefully, treat it as more than a leak. Shut the machine down, keep clear, retrieve a spill kit if available, and follow your site H&S protocols before going any further.
Hydraulic cylinder repair is usually the cheaper option, so it’s the first thing we look at. If the barrel and major components are still in good condition, repair can be the fastest way to get things moving again.
If repair costs start bordering on replacement costs, or you’ve experienced repeat failures, we may recommend hydraulic cylinder replacement. We also offer cylinder manufacturing if a new or custom solution is needed.
ADP works with construction, civil, transport, manufacturing, agriculture and industrial businesses, providing fast-response mobile hydraulic cylinder repair across Auckland, including South Auckland, Albany, Wellsford and surrounds.
Our team can diagnose faults, replace seals, repair and polish rods, or rebuild and recondition cylinders. If the issue extends beyond the cylinder itself, we can also provide cylinder manufacturing, line boring and welding and bush replacement.
Contact ADP for expert advice and hydraulic support.
It depends on the damage, parts required and whether machining is needed.
No, some are too damaged or worn for us to repair safely or cost-effectively.
The most common causes are seal wear, rod damage, contamination, overloading, corrosion and pressure issues.
Repair is cheaper, but replacement usually makes more sense for severe damage or repeated failures.
Yes, ADP Hydraulics provides hydraulic cylinder repairs Auckland-wide, including South Auckland, Albany and Wellsford.