As a result, over 40 years later, MD&A has evolved from a small firm to a large service provider with over 600 employees reaching more than 100 customers each week during outage season.  The reputation for outstanding service in the US has enabled MD&A to spread globally with parts, repairs, and services on large turbine-generator sets.

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With a rich 40 years of experience in the power generation industry, Mechanical Dynamics & Analysis is the most trusted company for turbine-generator needs. Our commitment to excellence has earned customer trust for all turbine-generator needs. We focus on delivering consistent quality and value with fast response, superior communications, and innovative solutions.

MD&A provides power generators around the globe with a full-service, OEM-alternative for services, parts, and repairs for Gas Turbines, Steam Turbines & Generators.

MD&A is easy to work with. We provide immediate access to expert help when you need it, where you need it. Around the corner or the globe, we ensure prompt, thorough communication and follow-through. For every repair job, large or small, the speed and effectiveness of our response team is matched only by the depth and breadth of our engineering expertise.

Find out today why so many power generators use MD&A to maximize operational effectiveness.

Why should you opt for MD&A

With a vast years of experience, we are one of the largest non-OEM providers in the US, but our expertise reaches globally.

All of our team members – from project managers and engineers to our technicians, have seen and solved every challenge they have encountered. Our experts are capable of getting your equipment in top-notch working condition within the shortest possible span of time by coming up with the smartest and most effective solutions. Our team is always in close communication with our customers at every given moment – whether it is handling a major outage or even during routine service; our customers can depend on us at all times. Our innovative response in every situation has earned us trust in the industry. Our customers can count on us to work together to bring the right solution. That’s MD&A for you. Choose us. Choose right. One Call, One Source, Powerful Solutions!

Turbine Services

Whenever possible, power plant owners prefer to plan ahead for major turbine outages that involve turbine overhauls. However, forced turbine outages do occur and too often result in the need for expedited engineering response and immediate turbine outage services. MD&A provides clients with the labor, engineering, and the technical experts necessary to address both planned and forced outages of all types of turbines and generators. Our technical directors and project managers are available 24 hours a day for steam turbine services and gas turbine services.

Gas Turbine Repair and Service

MD&A is a full-service provider of gas turbine repairs and services. Our engineers strictly follow effective, time-tested principles that produce sound and superior repair solutions for gas turbine-generator rotors and components.

Our Turbine-Generator Repair Facility offers full capabilities for your gas turbine rotor maintenance and end-of-life assessment. It also has an elevator system to perform a full gas turbine rotor and compressor unstack and restack. Our talented and experienced team has full capabilities for blading, machining, re-bucketing, and more.

Types of gas turbines we repair

Fleet Support for: Alstom®: GT 8, GT 11, GT 13, GT 24, GT 26; General Electric®: Frame 3, 5, 6B, 6FA, 7EA, 7FA, 9E, 9FA; Siemens®: V84, V94

Gas Turbine Service

MD&A is an expert in providing assistance for forced or planned outages. Some of the gas turbine services we offer are:

• Outage Planning: Through knowledgeable and effective outage planning, outage times can be held to a minimum, thus maximizing your on-line time. With our Maintenance Advance Planning Services, we can meet your gas turbine service needs. Implementation of MAPS will serve to decrease your outage time and ensure you are back online at the earliest possible time.
• Technical Direction: Our project managers and technical directors specialize in the many unique and complex areas of turbine-generator engineering. They are extremely knowledgeable of all gas turbine parts and functions and gas turbine services. They have intricate knowledge of repairs, upgrades, overhauls and inspections. They have vast experience in the field and have worked on many different types of OEM equipment. This makes them the right choice for handling the most difficult technical problems.
• Turnkey Inspections: We provide turnkey solutions for your gas turbine. This includes Combustion Inspections, Hot Gas Path (HGP) Inspections, Major Inspections, Vane Pinning, and Generator Major & Minor Inspections.We have turnkey staff members who specialize in maintenance, testing, repair, inspection and training in over 20 countries across the world.
• Gas Turbine Alignment: Gas Turbine alignments pose unique challenges in alignment due to their large flexible cases that become distorted due to the severe operating conditions. MD&A’s laser alignment services provide customers with a reliable method of measuring and aligning gas turbine parts, including alignment of compressor discharge casings and exhaust frames during replacement.
• Coupling Laser Alignment: Aligning shafts using laser technology has increasingly become the preferred method of shaft/coupling alignment for many customers. Powerful laser equipment along with our technological expertise, make us your experts for solving all your aligning problems.
• Operational Alignment Diagnostics: MD&A’s Coordinate Measurement Machine (CMM) system allows us to measure and monitor large pieces of equipment during operation. Our experts are able to measure component positions and monitor their movements over time precisely. With this tool, we can properly identify the gas turbine parts that have operational problems because of thermal growth, vacuum deflection, deflections due to piping forces or movement issues with equipment.
• End of Life Evaluation: Statistical predictions of component life can be the basis of gauging the end of life (EOL) a gas turbine rotor. A proper assessment by our experts can decide if component Repair, Replace or Use is the best option for your gas turbine rotor to meet operational and maintenance forecasts.
• Field Machining: MD&A offers an array of portable field machining and steampath repair equipment for use on-site. We also maintain portable machine shops that can be rented by clients for general outage use. Our machining capabilities include the ability to on-site or in-shop repair horizontal joints on turbine casings, damaged valves, rotors and nearly any rotating or stationary turbine-generator component.
• Balancing and Vibrational Analysis: MD&A’s on-site vibration and balance experts are experienced in using a variety of vibration analysis equipment with 24-hour emergency service and on-site low-speed balance. Our modern High-Speed Balance Facility was designed with both vacuum capability and the ability to excite generator rotors at high-speed, allowing the testing and balancing of both gas turbines & steam turbines and generator rotors.
• Control and Excitation Field Engineering Consulting and Training: Our engineers are experienced in installation, advanced troubleshooting, technical support, training and consulting services for your gas turbine controls, generator excitation, and turbine auxiliary systems.
• Thermodynamic Analysis: To improve the cycle performance, MD&A provides Thermodynamic Analysis services for customers. This helps to predict the off-design performance of the cycle. The performance for a new cycle or a cycle with new components can be predicted to make better decisions on cycle arrangements to optimize efficiency. Our Thermographic Surveys can be taken by customers as a standalone service or it can also be a part of our performance testing analysis service.
• Performance Testing & Analysis: We provide a variety of performance testing and analysis solutions on the basis of the plant’s overall test objective. Our gas turbine engineering focus is to assess the thermodynamic condition of your gas turbine and gas turbine parts in the cycle.

Steam Turbine Repair and Service

MD&A is a full-service provider of steam turbine repairs and services. We have been providing steampath turbine repairs services for over four decades.

Our engineers make steam turbine repair recommendations based upon the owner’s intended operating plans for the unit. We maintain a staff of experienced full-time steampath engineers who specialize in the engineered repair of stationary and rotating components.

Whenever possible, power plant owners prefer to plan ahead for major turbine outages that involve steam turbine overhauls. However, forced steam turbine outages do occur and too often result in the need for expedited engineering response and immediate turbine outage services. MD&A provides clients with the labor, engineering and the technical experts necessary to address both planned and forced outages of all types of turbines and generators. Our technical directors and project managers are available 24 hours a day.

Parts of steam turbine that can be repaired

We offer repair services for steam turbine parts like steampath components, stationary components, valve components and many more parts. Our mechanical engineers are experienced and skilled & provide expedited engineering response to our clients.

Our steam turbine parts solutions address reliability, life extension and capacity demands. Load demand, financial pressures and aging steam turbine generators have created the need to extend longevity and reliability.

Steam Turbine Service

MD&A provides clients with the labor, engineering and the technical experts necessary to address both planned and forced outages of all types of steam turbines and generators.

• Outage Planning: Through knowledgeable and effective outage planning, outage times can be held to a minimum, thus maximizing your on-line time. With our Maintenance Advance Planning Services, we can meet your steam turbine service needs. Implementation of MAPS will serve to decrease your outage time and ensure you are back online at the earliest possible time.
• Technical Direction: Our project managers and technical directors specialize in the many unique and complex areas of turbine-generator engineering. They are extremely knowledgeable in steam turbine parts and functions and steam turbine services. They have intricate knowledge of repairs, upgrades, overhauls and inspections. They have vast experience in the field and many OEM equipment. This makes them the right choice for handling the most difficult technical problems.
• Topless Alignment: Our Topless Alignment Services® eliminates the time consuming and expensive process of reassembling the steam turbine for “Tops-On” measurements, saving hundreds of man-hours and labor per turbine section. Most centerline alignment activities are moved off the critical path, reducing outage duration by days.
• Coupling Laser Alignment: Aligning shafts using laser technology has increasingly become the preferred method of shaft/coupling alignment for many customers. Powerful laser equipment along with our technological expertise, make us your experts for solving all your aligning problems.
• Operational Alignment Diagnostics: MD&A’s Coordinate Measurement Machine (CMM) system allows us to measure and monitor large pieces of equipment during operation. Our experts are able to measure component positions and monitor their movements over time precisely. With this tool, we can properly identify the steam turbine parts that have operational problems because of thermal growth, vacuum deflection, deflections due to piping forces or movement issues with equipment.
• Custom Installation of Seals: MD&A offers tailor-made installation of any packing ring or tip seal. With the help of a mobile containerized machine shop, our steam turbine parts experts offer the best quality installation in the industry. This ensures that the seal is properly installed and functions as required.
• Field Machining: MD&A offers an array of portable field machining and steampath repair equipment for use on-site. We also maintain portable machine shops that can be rented by clients for general outage use. Our machining capabilities include the ability to on-site or in-shop repair horizontal joints on turbine casings, damaged valves, rotors and nearly any rotating or stationary turbine-generator component.
• Balancing and Vibrational Analysis: MD&A’s on-site vibration and balance experts are experienced in using a variety of vibration analysis equipment with 24-hour emergency service and on-site low-speed balance. Our modern High-Speed Balance Facility was designed with both vacuum capability and the ability to excite generator rotors at high-speed, allowing the testing and balancing of both gas turbines & steam turbines and generator rotors.
• Control and Excitation Field Engineering Consulting and Training: Our engineers are experienced in installation, advanced troubleshooting, technical support, training and consulting services for your steam turbine controls, generator excitation, and turbine auxiliary systems. Our engineers specialize in Mechanical Hydraulic (MHC) and Electro Hydraulic (EHC) Controls, including GE® MKI through MKVIe systems.
• Steam Path Audits: A steam path audit is a physical inspection of the turbine steampath, conducted while the rotor is on the half-shell. The purpose is to identify and quantify performance problems of the steam turbine due to the deterioration of steampath components. Engineers and maintenance personnel use the results of audits to identify the most cost-effective repairs and to justify repair recommendations. We offer both thermodynamic and structural audits.
• Turbine Engineering: In the field of steampath engineering services, we are leading suppliers for the service of steam turbines. Our personnel is experienced and are on-site always. They are factory trained with extensive OEM field experience before joining our team.
• Remaining Life and Finite Element Analysis: MD&A leads the power generation industry with computer engineered solutions that address issues associated with an aging steam turbine fleet. We use finite element analysis to precisely model steam turbine parts and determine the root cause of component issues and to evaluate the remaining life shells, steam turbine rotors parts, valves and other integral steam turbine parts subject to high thermal stress factors.
• Thermodynamic Analysis: To improve the cycle performance, MD&A provides Thermodynamic Analysis services for customers. This helps to predict the off-design performance of the cycle. The performance for a new cycle or a cycle with new components can be predicted to make better decisions on cycle arrangements to optimize efficiency. Our Thermographic Surveys can be taken by customers as a standalone service or it can also be a part of our performance testing analysis service.
• Performance Testing & Analysis: We provide a variety of performance testing and analysis solutions on the basis of the plant’s overall test objective. Our gas turbine engineering focus is to assess the thermodynamic condition of your steam turbine and steam turbine parts in the cycle.

Gas Turbine Parts & Steam Turbine Parts

Our MD&A Parts Division is a premier worldwide supplier of replacement steam and gas turbine parts and components. Specializing in the manufacture and supply of turbine parts such as packing rings and spill strips, we can also offer a variety of other non-rotating steam and gas turbine parts, from fasteners to valves.

Additionally, MD&A’s San Antonio Service center offers gas turbine parts, repairs, and upgrades.It has cutting edge equipment to handle all your gas turbine parts.

Our team has extensive knowledge for a range of gas turbine component repairs, including weld repair, blend repair, dimensional restoration, and machining. Our expert technicians are well trained, seasoned professionals with in-depth knowledge of the many strict tolerance, procedures, and specifications to complete each repair.

Our Turbine-Generator Repair Facility repairs gas turbine parts. MD&A offers competitive turbine parts solutions for addressing reliability, life extension and capacity demands by providing retrofit and turbine part solutions for large steam turbine-generators. Load demand, financial pressures and aging steam turbine generators have created the need to extend longevity and reliability. Our turbine parts upgrades capture the latent potential of power plant auxiliary systems and retain thermal performance, providing a cost-effective recovery and enhancement of turbine efficiency.

We are trusted by users across the world because we are capable of solving every conceivable need – be it steam turbines, gas turbines or generators.

For more information call MD&A today at +1 (518) 399-3616 or use our Contact form.

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MD&A has built a reputation as an experienced source for service to its global customer base regardless of OEM equipment type. With the addition of PWPS’ leading experience in the hot gas path component and repair space, customers will now find fully incorporated service capabilities available from one trusted team.

The newly combined and globally enabled team at MD&A will be a powerful resource for customers, with a full suite of service, parts, and repair offerings, as well as gas turbine component upgrade solutions including but not limited to 7EA, 7FA, and V94.3AX series gas turbines.

The PWPS San Antonio Service Center will become MD&A San Antonio Service Center, and the business operations integration will be effective immediately.

The facility will operate with the same address and phone number:

MD&A San Antonio Service Center
[Gas Turbine Parts Service Facility]
6948 Fairgrounds Parkway
San Antonio, TX 78238
Ph: (210) 256-5000

Sales inquiries: 210-256-5107

By combining PWPS’ IGT parts manufacturing and repairs expertise with MD&A’s service and repair capabilities for gas turbines, steam turbines, and generators, customers can competitively source their turbine-generator services with a team that brings years of proven experience to the industry.

Official Press Release

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As a result, now in its 35th year, MD&A has evolved from a small firm into a worldwide full-service OEM alternative. Our reputation for fast response with innovative repair options is built on a commitment to excellence and quality.

We provide engineering and technical expertise, component repair, parts and supervised craft labor to support the needs of the power generation industry. We employ over 400 employees reaching more than 100 customers each week during outage season.

Qualified, experienced, knowledgeable experts; we employ seasoned professionals.  Our teams of project managers, shop personnel, technical directors, and consulting turbine-generator engineers are supported by an established and experienced network of field engineering resources, enabling us to respond quickly and effectively to your outage needs.

Happy 35th Anniversary!  Contact us today.

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With our vast range of products and services for power generators, we hope this Resource Center can help you with our expertise, case studies and helpful bulletins.  Check back for more!

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