Field Vibration & Balancing

One Shot
Balancing

Precision balancing and vibration analysis for high-speed rotating equipment — diagnosed and corrected on site, in a single trip. Less downtime, machines back online fast.

Request a survey Our capabilities
  • ISO-trainedengineers
  • 1,000+rotors balanced
  • 50+ yrscombined

What we do

Rotor dynamics, balancing, and analysis — end to end.

From a single field trim to full generator rewind and at-speed verification.

Field Balancing

Single- and multi-plane trim balancing of high-speed flexible rotors, performed on site to minimize outage time.

Vibration Surveys

Multichannel vibration data acquisition and analysis — 1X/2X, phase, orbits, and full spectral diagnostics.

Generator Rotor Repair

Re-design, rewind, and repair of rotors and stators for both air- and hydrogen-cooled machines.

Startup & Rundown

Bode and polar analysis through criticals on startup and coastdown to characterize rotor dynamics.

Generator Testing

Flux probe and shorted-turn testing to detect winding faults and verify electrical health under spin.

Test-Facility Consulting

We run high-speed balancing facilities on contract — and travel worldwide as the customer’s witness and expert to verify rotors are tested correctly.

1,000+
Rotors tested & balanced
230
Ton nuclear rotor, balanced
50+
Years combined experience
ISO
Standard-trained engineers
Multi-Plane Balance Shotµm o-pk · phase°
Polar plot of four bearing vibration vectors between 21 and 38 micrometres before balancing, all reduced to 0.2 micrometres or less after one four-plane correction. 12 24 36 µm 0° 90° 180° 270°
  • Bearing 1
  • Bearing 2
  • Bearing 3
  • Bearing 4
  • After ≤0.2
No single plane fixes every channel — one coordinated four-plane shot does.
1speed
4channels
4planes

Capabilities

We find the imbalance and correct it — decisively.

Decades of hands-on rotor-dynamics work show up as fewer trips, tighter residuals, and rotors that run clean.

  • Multi-plane balancing of high-speed flexible rotors
  • Multichannel data acquisition & spectral analysis
  • Air- and hydrogen-cooled generator rotor design & rewind
  • At-speed test-facility consulting and customer-witness, worldwide
  • Trained alongside the authors of the ISO balancing standards

In the field

From the plant floor to the spin pit.

We work where the machines are — power plants, paper mills, and the high-speed test facilities we run on contract and witness worldwide. Real rotors, real data, corrected at speed.

Steam turbine rotor — Onsite low-speed balancing
Steam turbine rotorOnsite low-speed balancing
Generator rotor — High-speed balancing and qualification testing
Generator rotorHigh-speed balancing and qualification testing
Combined-cycle plant — Onsite vibration analysis & balancing
Combined-cycle plantOnsite vibration analysis & balancing

Typical results

What a one-shot correction looks like

Representative outcomes across power, nuclear, and paper. Select a job for the numbers.

Trusted by satisfied clients

  • GE
  • Cooperative Energy
  • HTS
  • AP4
  • Georgia Pacific
  • AECI
  • MTS
  • STS
  • Hamakua Energy
  • OSS
  • Brush
  • Kema Powertest LLC
  • CMS Energy
  • International Paper
  • Omaha Public Power District
  • Beran
Nuclear

230-ton LP turbine rotor

1X Before4.10mils
1X After0.52mils
Machine
Half-speed nuclear LP rotor
Speed
1800 rpm
Planes
2

Multi-plane trim through first bending critical; residual well inside ISO grade.
Fossil

Boiler feed pump turbine

1X Before2.84mils
1X After0.41mils
Machine
BFP drive turbine
Speed
5200 rpm
Planes
2

Single field trip. 1X reduced 86% with a two-plane correction.
Generator

Hydrogen-cooled generator rewind

1X Before3.30mils
1X After0.60mils
Machine
H2-cooled generator rotor
Speed
3600 rpm
Planes
3

Rotor rewind, flux-probe verification, and high-speed balance at the test facility.
Paper

Paper machine roll

1X Before5.60mils
1X After0.90mils
Machine
Dryer section roll
Speed
1200 rpm
Planes
1

On-site single-plane balance; vibration brought within machine tolerance.

Keeping the grid spinning

When a turbine won’t settle,
minutes cost megawatts.

We mobilize fast, acquire the data, and trim the rotor at speed — so units come back online in one shot, not three trips.

Our team

Engineers who trained with the people who wrote the standards.

Founded in 2019. Over 50 years of combined rotor-dynamics experience.

Roger Honaker

Co-founder · Rotor Dynamics

20+ years in vibration, 16+ focused on rotor dynamics, balancing & analysis. Managed and directed the Test Facility at Alstom Power / GE Vernova. BS Mechanical Engineering, WVU Tech. Former US Army Road Shock & Vibration group for the DoD.

Hitesh Patel

Co-founder · Balancing & Analysis

16+ years in vibration analysis and dynamic balancing. Has tested and balanced rotors across the globe with a heightened expertise in multi-plane balancing of high-speed rotors.

Joseph Redwine

Co-founder · Engineering & Operations

14+ years in the power industry, starting as a generator design engineer at Alstom Power before leading turbine and generator balancing and testing programs. Brings an understanding of how machines are built to how they’re tested and balanced. BS Mechanical Engineering, VCU.

Contact

Got a machine that won’t settle?

Tell us what your equipment is doing. We’ll get an engineer on it and bring it back into tolerance — ideally in one shot.

Goes straight to our engineers at support@oneshotbalancing.com.

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