Our history

Gas turbine rotor OEM expertise and experience

When it comes to rotor life management and extension, GE has the advantage. Our OEM knowledge, analysis of gas turbine rotor behavior, and site-specific operating conditions help us determine full residual part life capabilities. GE has the knowledge, history, and expertise to perform a full rotor life assessment, addressing all phases of the lifecycle—for today and tomorrow. 

Benefits

Gas turbine rotor OEM expertise and experience

For the 7F gas turbine there have been over 30 turbine rotor modifications, more than 10 compressor rotor enhancements, and more than 100 different blade changes since 1990. When it comes to addressing gas turbine rotor needs there are many different solutions, but GE has the knowledge, history, and expertise to perform a full rotor life assessment, addressing all phases of the lifecycle—for today and tomorrow.

Proven gas turbine rotor life management

Through years of fleet and engineering analysis, we have developed proprietary gas turbine rotor manufacturing processes that cannot be duplicated. As rotor assets have aged over the last few years, our customers have worked with us to replace more than 250 B and E turbine rotors and over 500 F turbine rotors. For the 7F gas turbine there have been more than 30 turbine rotor modifications, 10+ compressor rotor enhancements, and more than 100 different blade changes since 1990. 

On-demand webinar

Let's Talk: 7F rotor life management

How does your plant's rotor fit in with your long-term strategy? Has changing operating modes and the evolving energy landscape made you look at your rotor needs different? View our webinar on demand to learn about your options for managing the life of your 7F rotor.

Solutions

Gas turbine rotor life management and extension solutions

View by rotor type:

Rotor exchange with new rotor

Best for: Customers that are planning far in advance and looking to reduce rotor costs.

144K-200K
Additional lifetime hours gained

$$$$

Cost to you

1-3

Major Inspection/C-Inspection intervals gained

5,000

Additional lifetime starts gained

Your goal:

Prioritizing reliability and technical capabilities. You have a long-term planning horizon for your plant, but you’re also interested in reducing your total rotor costs.

Here's what you get:

Removing and replacing your existing gas turbine rotor with a new rotor from GE delivers enhanced reliability and performance, advanced equipment and the latest materials--resetting the clock on your rotor at 144,000 or 200,000 hours and 5,000 starts.

This solution is compatible with the following gas turbine types:

6B, 6F, 7E, 7F, 9E, 9F, GT11, GT13, GT24, GT26, GT8, GT9

Rotor exchange with refurbished rotor

Best for: Customers that want to get back in operation—FAST—with lower upfront costs and greater flexibility.

44K-124K
Additional lifetime hours gained

$$$$

Cost to you

1-3

Major Inspection/C-Inspection intervals gained

2,400+

Additional lifetime starts gained

Your goal:

Getting your rotor back in operation—FAST—with lower upfront costs and greater flexibility.

Here's what you get:

Our Rotor Exchange program provides you with a gas turbine rotor that has been inspected and if needed, improved to GE’s strict standards, with life still left on the asset. You receive a GE-certified rotor with the latest technology improvements. Best of all, you get it quickly, helping to reduce downtime, especially in emergent situations.

*Available hours and starts on refurbished assets are dependent on available inventory at the time.

This solution is compatible with the following gas turbine types:

6B, 6F, 7E, 7F, 9E, 9F, GT11, GT13, GT24, GT26, GT8, GT9

Rotor life extension

Best for: Customers that have a flexible outage window, or a spare rotor that can be used as a seed rotor, and are looking for an cost-effective solution.

96K
Additional lifetime hours gained

$$$$

Cost to you

1-3

Major Inspection/C-Inspection intervals gained

2,400+

Additional lifetime starts gained

Your goal:

Keeping your existing rotor because you have a flexible outage window and are looking for an economical solution. In addition, you may have a spare rotor that can be used as a seed rotor to extend the life of a broader range of rotors.

Here's what you get:

Our rotor life extension solution targets the rotor balancing, repair, replacement and maintenance of individual gas turbine rotor components after a full disassembly and inspection protocol. We can create a customized life extension solution for gas turbine rotor assets that allows for extended operation of two or more additional maintenance intervals.

This solution is compatible with the following gas turbine types:

6B, 6F, 7E, 7F, 9E, 9F

Rotor reconditioning

Best for: Customers keeping their existing rotor because they have a flexible outage window and are looking for an cost-effective solution.

96K
Additional lifetime hours gained

$$$$

Cost to you

1-3

Major Inspection/C-Inspection intervals gained

Your goal:

Keeping your existing rotor because you have a flexible outage window and are looking for an economical solution. In addition, you may have a spare rotor that can be used as a seed rotor to extend the life of a broader range of rotors.

Here's what you get:

If you have GT-frame rotors that are approaching their serviceable limit, you can extend their lifetime with a rotor reconditioning, which involves replacing the turbine section with a new one. The remaining life after reconditioning depends on the consumed life (mainly starts) of the compressor section.

This solution is compatible with the following gas turbine types:

GT11, GT13, GT24, GT26, GT8, GT9

Videos

Learn more about rotor life management

Hear from our experts about rotor life strategy, corrosion, extensions and more!

Rotor life extension (with Tom Freeman)

Rotor life management (with Matthew Ferslew)

Rotor life corrosion (with Matthew Ferslew)

7F rotor life management FAQs

Have questions? We have answers!

How do I start planning for my rotor’s future? How have energy industry changes affected my rotor life? Find the answers to these questions and more in our interactive feature below, which includes topics covered during our recent webinar.

Contact us

Want to learn more about gas turbine rotor life management and extension?