Hydraulic Cylinder Repairs in Whangārei and Northland
A weeping rod, a ram that drifts under load or a scored cylinder will only get worse and more expensive. We strip, inspect, reseal, re-chrome and rebuild hydraulic cylinders at our Whangārei workshop and return them ready to fit and run.
Speak with Marion about your equipment, location and the best next step.
Who this is for
- Contractors and operators running hydraulic plant that is leaking or underperforming
- Transport, forestry, agriculture and construction businesses needing reliable cylinder rebuilds
- Owners of older machinery who need parts made or sourced when originals are hard to find
Signs you need this service
- Visible oil weeping from the rod, gland or ports
- Cylinder drifts under load or feels spongy
- Scoring, pitting or damage on the rod
- Slow retraction or extension compared with normal
- Contaminated or milky hydraulic oil
- A bent rod or damaged mounting eye
How we help
How the process works
- 1
Enquiry and assessment
Send photos and a description through the enquiry form, or drop the cylinder to the workshop. We confirm scope, likely parts and a rough turnaround.
- 2
Strip-down and inspection
The cylinder is dismantled, cleaned and inspected. Any additional damage found is reported before work continues.
- 3
Repair and rebuild
Seals, rods, tubes and components are replaced, honed or re-chromed as required.
- 4
Test and return
The rebuilt cylinder is bench tested, cleaned and returned ready to fit.
Workshop vs on-site
Cylinder honing, re-chroming and full rebuilds are workshop jobs because of the equipment involved, and are done at 15 Union East Street, Whangārei.
Removal, refit and some on-site seal changes can often be handled through our mobile service, subject to the job, your location and current workload.
What you get out of it
- A reliable, correctly sealed cylinder back in service
- Longer working life from a repair rather than a costly full replacement
- A clear report on what was done and what to watch for
Equipment and industries
Cylinders from excavators, loaders, tractors, tipping trailers, truck-mounted cranes, forestry gear, waste trucks and fixed industrial plant.
We work with contractors, transport operators, rural businesses and industrial sites across Whangārei and the wider Northland region.
Frequently asked
Related services
Hydraulic Hose Repairs
Hose making, replacement and fitting for burst, weeping or perished hydraulic lines.
Read about Hydraulic Hose RepairsHydraulic Pumps & Valves
Pump and valve testing, repair, replacement and setup for machines losing power or speed.
Read about Hydraulic Pumps & ValvesLine Boring
In-house line boring and re-bushing of worn pivot points, bosses and pin bores on plant and attachments.
Read about Line Boring
Want to see comparable work? View recent projects from Whangārei and Northland clients.
Google reviews
What customers say
5.0 out of 5 from 15 Google reviews · Verified in Google on 4 November 2026
Have used JM engineering many times fast professional services prioritizing the ergent work weather being pump rebuild, hydraulic ram repairs,welding ,hose fitting getting you back to work ! Great fast efficient team Excellent pricing back-up support.. Clearland limited
Shane MathesonGoogle review
Need this sorted?
For urgent or time-sensitive work, call 09 430 8070 to discuss availability.
For quotes, planned work and job photos, the enquiry form is the best path.