Leading Experts in Electro-Mechanical Repairs and Service
We specialize in the manufacturing, repair, servicing, and refurbishment of transformers, rotating electrical machines, and industrial fan systems. Trusted across South Africa for our reliable electro-mechanical solutions and engineering excellence.
Who We Are
LH Marthinusen (LHM) is one of Africa’s largest repairers of electric motors and electrical rotating machinery, trusted for over 100 years. As part of the ACTOM Group, we offer a comprehensive range of specialist services, including transformer repairs, rotating machinery overhauls, fan engineering solutions, field services, and more. With a strong national footprint and a reputation for technical excellence, LHM proudly serves a wide range of industries – from mining and utilities to manufacturing and transportation.
Our team of engineers and technicians is committed to delivering high-quality, energy-efficient solutions that extend the life of your critical equipment. Whether on-site or at our world-class facilities, we work to international standards and deliver results you can rely on.
Our Products and Services
Comprehensive electro-mechanical solutions across multiple industries and applications
Transformers
LHM has built a trusted name in the electro-mechanical sector, offering advanced transformer services that support critical power infrastructure. Our teams have hands-on experience across a wide range of transformer types and applications.
Fan Service
LHM offers a full suite of fan services, from the design and manufacture of new industrial fans to the refurbishment and performance enhancement of existing units. Whether you require a custom-built fan, legacy reverse engineering, or on-site support, our team delivers high-performance, reliable solutions tailored to your operational needs.
Rotating Machines
LHM specialises in the servicing and rewinding of rotating electrical machines including induction motors, synchronous motors, DC motors, and alternators. We maintain machinery across critical sectors like mining, water, energy, and municipal operations.
Engineering Services
Our skilled field teams deliver responsive and professional support to industrial, municipal, and utility clients. Whether it’s a planned shutdown or an emergency breakdown, we have the tools and people to keep your operations running.
Manufacturing
We offer full mechanical manufacturing and machining capabilities, supporting the repair and rebuilding of rotating machines, fans, and transformers. Our team produces both custom and OEM-matched components.
