We overhaul centrifugal and reciprocating compressors, industrial pumps, fans and blowers for plants in Lagos, Port Harcourt, Abuja, Kaduna, Warri and Kano. Every job starts with measurement: vibration data, alignment readings and a written scope your procurement team can price.
Axiom Power Services provides rotating equipment services in Nigeria for plants that cannot absorb unplanned stoppages. We work on centrifugal and reciprocating compressors, single and multistage pumps, fans, blowers, gearboxes and their drive trains, from routine condition monitoring through to full strip, inspect and rebuild. Our engineers are based in Lagos and mobilise to sites in Rivers, FCT, Kaduna, Delta and Kano States.
The work is diagnostic before it is mechanical. We take vibration spectra, phase readings, alignment measurements and process data first, then tell you which machines on your list actually need to be opened during the outage. That keeps the outage window short and keeps spend on the assets that are genuinely degrading rather than on the whole population. Where a critical spare is obsolete or the import lead time is unacceptable, we reverse engineer the part and manufacture it locally.
Air, nitrogen and process gas machines: valve and unloader work, piston, ring and rod replacement, cylinder honing, impeller and diaphragm inspection and full running clearance checks. We record as found and as left clearances against OEM limits so your asset file carries a real baseline.
Overhung, between bearings and vertical turbine pumps on boiler feed, fuel transfer, water treatment and process duty. We address seal leakage, cavitation damage, wear ring clearance loss and shaft deflection instead of swapping the pump and repeating the failure.
ID and FD fans, roots blowers and cooling tower fans, including in situ balancing of rotors that cannot be sent off site. Blade erosion, fouling and bearing housing looseness are the failure modes we see most often on Nigerian plants.
Route based data collection with spectrum, time waveform and phase analysis to separate unbalance, misalignment, looseness, bearing defects and blade pass problems. Findings are reported against ISO 20816 severity zones with a recommended action date, not a vague warning.
Laser shaft alignment of motor, gearbox and driven machine trains, with soft foot corrected and thermal growth targets applied before final readings. Field balancing of fans and rotors to ISO 21940 grades using a portable analyser, with residual unbalance recorded.
Dimensional capture, material verification and local machining of impellers, shafts, sleeves, wear rings, coupling spacers and gland components. This removes the 10 to 20 week import lead time and the FX exposure that sits inside it.
Our rotating equipment services in Nigeria cover the machine classes that carry production: reciprocating and centrifugal compressors, boiler feed and transfer pumps, ID and FD fans, blowers, gearboxes and the motors or turbines that drive them. Each class fails in a recognisable way, so we set the inspection interval against the failure mode rather than against the calendar.
Where the prime mover is a gas or steam turbine, the same crew handles the driver so the train is treated as one machine rather than two contracts. See steam turbine overhaul and industrial generator maintenance for that scope.
Diagnosis comes before disassembly. We collect vibration spectra, time waveform and phase at each bearing position under normal load, together with process readings such as suction and discharge pressure, flow, bearing temperature and motor current. That combined data set shows whether you have a mechanical defect, a process problem or a foundation problem, which are three different purchase orders.
Vibration severity is reported against ISO 20816 zones so the numbers mean the same thing to your team and ours. For most medium sized machines on rigid foundations we treat 2.8 mm/s rms as the point where a machine leaves good condition and 7.1 mm/s rms as the point where continued running threatens bearings and seals. Rolling element bearing defects appear in the envelope and high frequency bands well before overall velocity moves, and that early warning is what gives you time to order parts and plan the outage.
Alignment and balancing close out the job. We align shaft trains with a laser system to a residual offset target of 0.05 mm, correct soft foot first, and apply thermal growth offsets where the machine runs hot. Rotors are balanced in place to ISO 21940 grade G2.5 for general industrial duty, or G6.3 where the application and speed allow it.
A rebuild is only as good as the clearances and the parts that go back in. Our standard scope covers strip and clean, dimensional inspection of shafts, journals, wear rings and housings against OEM limits, and non destructive testing where cracking is a credible risk. We then replace bearings, mechanical seals, gaskets, packing and coupling elements, reassemble with recorded clearances and document the run in at rated load.
Every overhaul returns a document pack you can file against the asset and hand to the next crew:
Control and protection usually lag the mechanical work. We upgrade compressor and pump control panels, replace obsolete relays, contactors and starters, add vibration and temperature protection channels, and bring trip settings back in line with the machine's actual operating envelope. Where several machines share a panel or a common utility header, a power plant audit is the sensible starting point.
Import lead times and FX movement cost Nigerian plants more than the mechanical failures themselves. An impeller, shaft, sleeve or wear ring ordered from an OEM can take 10 to 20 weeks door to door before clearing, and the naira cost is fixed on the day of payment rather than the day of quotation. For obsolete machines the part may not be available at any price.
We capture the failed component dimensionally, verify material by hardness and composition checks, then manufacture the replacement locally in 3 to 6 weeks for most items. Impellers, shafts, sleeves, casing wear rings, gland followers and coupling spacers are routine work. Where the original design contributed to the failure, we say so and propose a material or clearance change instead of reproducing the fault.
For procurement, every proposal carries a fixed scope of work, a priced bill of materials, mobilisation and manpower separated from parts, the outage window in days and a clear list of exclusions. That is enough detail to raise a purchase order without a second round of clarifications. Indicative ranges sit on our maintenance cost page, and mobilisation is costed from the nearest base for Lagos, Port Harcourt, Warri, Abuja, Kaduna and Kano.
For critical machines we recommend a monthly route, and quarterly as the minimum for balance of plant equipment. Reciprocating compressors still need valve inspection every 4,000 running hours regardless of what the vibration trend shows. A plant with 40 to 60 monitored points is normally covered in one to two days per visit, with the report issued within five working days.
A baseline vibration and alignment survey runs from about NGN 900,000 (roughly USD 600) for a small plant with 20 to 30 measurement points, up to NGN 2,800,000 (roughly USD 1,850) for a large site with 100 points and full reporting. Compressor and pump overhauls are quoted separately once the survey has defined the scope, so you are not paying for parts nobody has proved you need. Mobilisation outside Lagos is priced per trip and shown as a separate line.
Yes. We reverse engineer impellers, shafts, sleeves, wear rings, coupling components and gland parts from the failed item or from a drawing, with material verified before machining begins. Typical delivery is 3 to 6 weeks against 10 to 20 weeks for an imported OEM part. Pricing is settled in naira, so FX movement during the lead time does not reopen the cost.
A site pump overhaul is usually 2 to 4 days once parts are on the ground. A reciprocating compressor top end overhaul takes 4 to 7 days, while a major overhaul involving crankshaft and frame work runs 2 to 4 weeks. Centrifugal compressor majors are planned around your shutdown window and normally need 3 to 6 weeks including rotor work and balancing.
Yes. We mobilise from Lagos to Rivers, FCT, Kaduna, Delta and Kano States, with planned work typically starting within 5 to 10 working days of a purchase order. Emergency mobilisation for a stopped critical machine is arranged case by case depending on crew and equipment availability. To book a plant assessment or request a technical proposal, call +234 803 000 0000 or email info@axiompowerng.com.
Written technical proposals. Outage support available.
