Some things can’t afford to stop.
Obsessed with Quality.
Extending Asset Life. Improving Reliability.
We manufacture high-voltage coils and bars that extend the service life of generators and motors across hydro, nuclear, oil & gas, and industrial sectors -- helping you protect critical assets and maximise uptime.
Recognised for Excellence: AEMT Supplier of the Year 2021 & 2024
Trusted by the energy sector worldwide
Quality
Engineered for continuous duty, quality that protects your assets
Our coils and bars are manufactured to the highest standards and tested to the same protocols as OEM originals. When a machine runs 24/7, the winding inside it must too.
Sustainability
Enabling the energy transition
Every coil and bar we manufacture supports a cleaner, more resilient grid. From generators to synchronous condensers, our components help you reach your clean-energy goals.
Partnership
Enabling your success
Complementing your business, not competing with your services. We are your independent strategic partner, with our manufacturing capacity and R&D dedicated to your needs.
50+
Years Extending Asset Life
2x
AEMT Supplier of the Year
10yr
Reliability Guarantee
24/7/365
Emergency Response
Products
The Windings Behind Your Critical Assets
From precision-engineered coils to complete rewind kits and expert design services, every solution is built to extend the operational life of your rotating machines and reduce the total cost of ownership.
High Voltage Coils
Engineered for decades of dependable service. 6kV to 26kV diamond coils with resin-rich or VPI insulation, backed by a 10-year reliability guarantee.
Learn moreHigh Voltage Bars
Engineered for decades of dependable service. 6kV to 26kV Roebel bars with resin-rich or VPI insulation, backed by a 10-year reliability guarantee.
Learn moreRewind Kits
Complete kits that minimise your rewind time and get critical machines back online faster. Drop-in compatibility, zero guesswork.
Learn moreDesign & Engineering
Coil redesign, efficiency upgrades, and expert consultation that extend asset life and improve machine performance. Emergency response when you need it most.
Learn moreThe PFW Difference
Why Energy Leaders Choose Us as Their Partner
Our obsession with quality runs through everything we do — from the materials we source to the final test before dispatch.
Reliability You Can Count On
Every coil and bar we manufacture is engineered for decades of dependable service. Industry-leading partial discharge and tan delta levels mean lower failure risk and longer intervals between maintenance outages.
Minimise Your Downtime
When a critical machine fails, every hour offline costs thousands. Our emergency lead times are measured in weeks, not months -- getting your infrastructure back to full capacity faster than anyone else.
A True Extension of Your Team
Our technical experts work closely with your team, from taking product dimensions to providing manufacturing and process advice. Complimentary coil and bar design consultation and 24/7/365 technical support -- because your uptime is our mission.
Extend Asset Life, Reduce Total Cost
Our redesign and upgrade capability goes beyond like-for-like replacement. We improve efficiency, lower operating temperatures, increase generator output, and extend the service life of your rotating machines -- delivering measurable savings over the lifetime of your asset.
Manufactured for Reliability
Quality That Protects Your Investment
Every coil and bar we manufacture is an investment in the long-term reliability of your infrastructure. Over 50 years of continuous improvement in materials, processes, and testing ensures that our products deliver decades of dependable, uninterrupted service.
- Every coil tested before dispatch -- protecting your asset from day one
- Industry-leading partial discharge and tan delta levels for longer service life
- Tight geometrical tolerances that reduce installation time and risk
- Uniform coils that lower winding complexity and speed up your rewind
- Redesign service that improves efficiency and reduces operating temperatures
- 10-year reliability guarantee -- our confidence is your protection
Where We Make an Impact
Improving Reliability Across Global Energy Infrastructure
From hydroelectric dams to nuclear plants, from offshore platforms to marine environments -- wherever critical machines must run, our products help our partners keep them running longer and more reliably.
Hydro
Keeping hydroelectric generators running reliably for decades with custom-manufactured stator and rotor coils and bars.
Nuclear
Manufacturing coils and bars that meet the highest safety and reliability standards for critical nuclear power generation assets.
Oil & Gas
Manufacturing coils and bars that reduce unplanned downtime in harsh extraction and processing environments.
Industrial
Extending generator and motor life in manufacturing, mining, and heavy industry with coils and bars built to protect your capital investment.
Marine & Port Operations
Extending generator and motor life in marine environments and port infrastructure with coils and bars built to protect your capital investment.
Power Generation
Coils and bars built for high-voltage generators across thermal, gas, and renewable generation fleets worldwide.
Gallery
Inside Preformed Windings
A look at our products, facilities, and team from our LinkedIn and behind the scenes at our Rotherham, UK, manufacturing operations.
Protect Your Most Critical Assets
Whether you need emergency coil and bar supply or a long-term reliability partner, our engineering team is ready to help you extend asset life and reduce risk.
Find Us
Rotherham, South Yorkshire
Unit C, Vector 31 Industrial Estate,
Waleswood Way, Rotherham, S26 5NU,
England, UK