Our Services
Erection of Equipment
Nexmech provides comprehensive erection services for thermal power plants, ensuring precise installation and alignment of all major equipment and auxiliary systems. The company handles erection of boilers, turbines, generators, condensers, cooling systems, pumps, piping networks, structural steel, and material handling systems such as conveyors and coal handling plants. Each installation is executed following approved engineering drawings, technical specifications, and strict safety standards to ensure structural integrity and operational reliability.
The scope also includes erection of electrical systems such as transformers, switchgear, bus ducts, cable trays, and power distribution networks, along with Control & Instrumentation (C&I) equipment for accurate monitoring and automation. Nexmech performs alignment, leveling, grouting, torque tightening, and precision measurement to achieve optimum performance and equipment longevity.
In addition, the company undertakes installation of flue gas systems, ESPs, chimneys, ash handling systems, and water treatment plant equipment, ensuring environmental compliance and efficient plant operation. With experienced engineers, skilled technicians, and modern tools, Nexmech ensures timely execution, quality workmanship, and readiness for commissioning. The company remains committed to delivering safe, efficient, and reliable erection solutions for thermal power projects of any scale.
Welding and Grinding
Nexmech delivers specialized grinding and welding services for thermal power plant piping systems, including P91, P22, P11, and other alloy steel materials used in high-temperature and high-pressure applications. The company follows approved welding procedures (WPS/PQR) and stringent quality standards to ensure metallurgical integrity, strength, and long-term reliability of critical piping joints. Precision grinding and edge preparation are performed to achieve correct bevel geometry, proper root gaps, and clean surfaces, ensuring defect-free welds and optimal joint penetration.
Nexmech undertakes welding and fabrication of both IBR and Non-IBR piping systems in compliance with statutory regulations and industry codes. Services cover a wide range of pipe diameters and thicknesses, including small bore and large bore piping, ensuring accurate fit-up, alignment, and dimensional control. Preheating, controlled welding techniques, and post-weld heat treatment (PWHT) are applied where required to maintain material properties and prevent cracking in alloy steels.
The company also performs in-process inspection, weld visual checks, and coordination for NDT methods such as radiography, ultrasonic testing, and dye penetrant testing to verify weld quality. With experienced welders, certified procedures, and advanced equipment, Nexmech ensures safe, durable, and high-performance piping systems suitable for demanding thermal power plant operations.
Mechanical Maintenance
Nexmech provides comprehensive mechanical maintenance services for thermal power plants, ensuring reliable operation and extended service life of critical equipment. The company undertakes preventive, predictive, breakdown, and shutdown maintenance of turbines, boilers, pumps, fans, compressors, gearboxes, conveyors, and other rotating and static equipment. All activities are carried out in accordance with OEM recommendations, engineering standards, and strict safety procedures to maintain operational efficiency and minimize unplanned outages.
Services include inspection, alignment, overhauling, bearing replacement, seal maintenance, lubrication management, vibration checks, and precision balancing to restore equipment performance. Nexmech also handles maintenance of piping systems, valves, expansion joints, dampers, and structural components to ensure leak-free and safe plant operation. Advanced tools and condition monitoring techniques are used to identify wear, misalignment, and performance deviations at an early stage.
During planned shutdowns and major overhauls, Nexmech executes systematic dismantling, refurbishment, reassembly, and performance verification to ensure equipment readiness for continuous operation. With experienced engineers, skilled technicians, and a strong focus on quality and safety, Nexmech delivers dependable mechanical maintenance solutions that enhance plant reliability and overall efficiency..
Electrical Maintenance
Nexmech provides comprehensive electrical maintenance services for thermal power plants to ensure uninterrupted power generation and safe system operation. The company performs preventive, predictive, breakdown, and shutdown maintenance of transformers, switchgear, HT/LT panels, motors, generators, bus ducts, and power distribution systems in accordance with OEM guidelines and electrical safety standards.
Services include inspection, testing, cleaning, tightening, insulation resistance testing, thermography, relay calibration, and troubleshooting to prevent failures and improve system reliability. Nexmech also undertakes maintenance of cable networks, earthing systems, circuit breakers, protection systems, DG sets, battery banks, and control panels to ensure stable and efficient electrical performance.
During plant shutdowns and overhauls, Nexmech executes systematic testing, refurbishment, and recommissioning of electrical equipment to ensure readiness for continuous operation. With qualified electrical engineers, skilled technicians, and strict adherence to safety protocols, Nexmech enhances equipment reliability, operational safety, and overall plant efficiency.
C&I Maintenance
Nexmech provides comprehensive Control & Instrumentation (C&I) services for thermal power plants to ensure accurate monitoring, automation, and safe operation of critical processes. The company undertakes installation, calibration, testing, and maintenance of transmitters, sensors, gauges, control valves, analyzers, switches, and field instruments in accordance with OEM specifications and industry standards.
Services include cable laying and termination, junction box erection, loop checking, signal testing, DCS/PLC interfacing, and calibration of temperature, pressure, flow, and level instruments to maintain precise process control. Nexmech also performs hot and cold loop checking, instrument charging, impulse line servicing, and troubleshooting to ensure reliable signal transmission and system responsiveness.
During shutdowns and overhauls, the company executes comprehensive inspection, recalibration, and recommissioning of control systems to maintain operational accuracy and plant safety. With experienced instrumentation engineers, advanced calibration tools, and strict quality procedures, Nexmech ensures dependable automation performance and optimal plant efficiency.
Civil & Masonry
Nexmech provides comprehensive civil and masonry services for thermal power plants, ensuring structural stability, durability, and compliance with engineering standards. The company undertakes construction and maintenance of equipment foundations, turbine decks, cable trenches, pipe supports, drainage systems, roads, and industrial flooring designed to withstand heavy loads and operational stresses.
Services include masonry work, concrete repair, grouting, waterproofing, structural strengthening, and rehabilitation of buildings, chimneys, cooling towers, and retaining walls. Nexmech also performs precision foundation alignment, anchor bolt fixing, and non-shrink grouting to ensure proper equipment seating and vibration control.
During shutdowns and renovation projects, the company executes structural inspections, crack repairs, surface restoration, and protective coating applications to extend service life and maintain safety standards. With skilled civil professionals and strict quality control practices, Nexmech delivers reliable and long-lasting civil infrastructure solutions for power plant operations.
Condition Monitoring
Nexmech provides advanced condition monitoring services for thermal power plants to ensure reliable operation and early detection of equipment abnormalities. The company performs vibration analysis, thermography, ultrasonic inspection, and temperature monitoring to assess the health of turbines, generators, pumps, motors, fans, and other critical rotating equipment.
Services include oil analysis, alignment verification, noise monitoring, and performance trending to identify wear, imbalance, misalignment, and lubrication issues before they lead to failures. Using predictive maintenance techniques and detailed data analysis, Nexmech helps optimize maintenance schedules and reduce unplanned downtime.
Regular condition assessment and reporting enable plant operators to make informed decisions, improve equipment life, and enhance overall plant efficiency. With modern diagnostic tools and experienced specialists, Nexmech ensures improved reliability, safety, and performance of thermal power plant systems.
Valves & Actuators
Nexmech provides comprehensive valve and actuator servicing for large thermal power plants to ensure safe, precise, and reliable flow control across critical systems. The company undertakes inspection, overhauling, calibration, and troubleshooting of actuators from all major manufacturers, including motor-operated valves (MOVs), control valves (CVs), pneumatic actuators, and hydraulic actuators.
Services cover maintenance and refurbishment of ball valves, gate valves, globe valves, butterfly valves, and special-purpose valves in both IBR and Non-IBR categories. Nexmech performs seat lapping, seal and packing replacement, actuator torque setting, limit switch calibration, and functional testing to restore optimal performance and leak-free operation.
During shutdowns and major overhauls, the company executes systematic dismantling, inspection, refurbishment, and recommissioning to ensure dependable valve operation under high-temperature and high-pressure conditions. With experienced technicians and strict adherence to safety and quality standards, Nexmech enhances operational reliability and extends the service life of valve and actuator systems.