
Specialized Maintenance Services
Specialized in maintenance for railway locomotives and heavy industries - mining, cement - and energy sectors to ensure operational efficiency of our Clients
Improving asset availability, reduce costs, increase throughputs and improve safety. Conversely, unplanned downtime and extended fault investigations reduce operating time and inflate maintenance costs. If your key performance indicators (KPIs) are tied to operational performance, then overall equipment effectiveness (OEE) is an essential metric to track where you’re making progress and to see how you can improve.

AC Motors Rewinding & Retrofit
Electric motor rewinding work scope includes:
Receive electric motor components into our facility
Datum check all parts
Perform MCA - Reporting to Client results
Detail and strip stator windings
Clean and prepare stator core and carry out core test
Manufacture stator coils, insulated as required
Carry out testing of the coils
VPI impregnate stator windings if required
Assemble, test and paint
Final QA check, ready for delivery
Report all motor rewinding details in full to customer
One year warranty
At Iron Moz, we comply with – and in some areas exceed – IEEE 1068 specification for electric motor rewinds and have controlled procedures and records in place to manage the electric motor rewind process. All electric motors are wound to Class H or higher thermal class, upgrading the insulation quality,

Traction Motors Overhaul
Traction motor overhaul work scope includes:
Tag-In of TM
Perform MCA - Reporting to Client results
Detail and strip windings
Clean and check armature and coils condition
Rewinding of armature
Replacement of coils and cables
Replacement of bearings
VPI impregnation
Armature calibration
Assemble, test and paint
Final QA check, ready for delivery
Final Report in full to customer
One year warranty or 160.000kms
Iron Moz offers a full range of repair, rebuilding and retrofit services for AC and DC traction motors as well as individual components for in-house railway maintenance operations.

Pumps and Vibrators
Overhaul and repair of all types of pumps
Vibrational testing
Mechanical seal diagnosis and repair
Pump and related material upgrades
Factory training on VFD drives
Installation and start-ups
Factory-authorized warranty shop
Outside field service including on-site repair and maintenance
One year warranty
Pumps are the heartbeat of many operations, and when they falter, you need a trustworthy hand to restore them. Here, we ensure your pumps not only get back up and running but also achieve long-lasting operational excellence.
Iron Moz service, repair all makes of pump including: KSB, Grundfos, Ebara, Lowara, DAB, Flowserve, Sulzar, SPX Flow, Fristam, APV, Becker, Gardner Denver, Rieschle, Titan, Mono, Varisco, Audex, Sykes

Power Transformers
Operation Maintenance (on-site)
· Detailed condition appraisals
· Loading / Dynamic Rating Analysis (DTR Software)
· Health Index determination
· Fleet Assessments – Asset Management
· Oil quality Monitoring and interpretation
· Degree of Polymerization
· Insulation dry-out
· Fluid replacement - Environmental/flammability
· Thermal Issues/thermography
· On-site Frequency Response Analysis
· Power factor testing
· On-site Partial Discharge testing
· Dielectric Frequency Response – Insulation dryness
· Other services available upon request
Iron Moz provides complete transformer testing, repair and consulting services to ensure the safe, reliable, and effective operation and management of your power transformers.
Operation Maintenance (workshop)
· Servicing and refurbishing distribution transformers up to 10MVA, 20 kV
· Condition appraisals
· Insulation aging analysis
· Conversion to high-temperature insulation
· Thermal uprating’s
· Radiator / cooler replacement
· Insulators replacement
· Coils rewinding
· Replacement of gaskets, cable boxes, HV and LV bushings, radiator fins, and tap changers.
· High vacuum purification and filtration of transformers oils.
· Complete replacement of transformer oil.
· One year warranty.

Services for You
Services that Solve your most Critical Assets challenges
Whether it’s onsite (field services) or from a distance (workshop), we’re dedicated to delivering professional maintenance services and repair on equipment’s, focused on improving plant performance and reducing operating costs.
© 2025. All rights reserved.
Iron Moz Lda
Nampula - Mozambique
comercial@ironmoz.com
+258 87 248 4158
NUIT 401864301

