Electrical Laminations
Electrical Laminations
Call 0121 544 5808 Today
Bespoke Manufacturing
Instant Quote Service
Worldwide Delivery
Various Gauges/Thicknesses
Bespoke Manufacturing
Instant Quote Service
Worldwide Delivery
Various Gauges/Thicknesses
Stephens Gaskets is a trusted UK manufacturer of electrical laminations, supplying high-performance laminated cores for motors, transformers, generators, inductors and solenoids.
Each lamination is engineered to deliver maximum efficiency, reduced heat build-up, and consistent magnetic performance, whether you’re designing an EV motor or a utility-scale transformer.
What Are Electrical Laminations?
Electrical laminations are thin sheets of electrical steel stacked together to form a magnetic core. By laminating rather than using a solid core, eddy-current losses are reduced, efficiency increases, and components run cooler and longer.
Common shapes include E, I, U, T, and custom profiles, cut or stamped from cold-rolled electrical steel to tight tolerances.
Why Choose Stephens Gaskets?
- Reduced Eddy Current Losses: precision stamping and insulation coatings minimise energy waste.
- Improved Magnetic Efficiency: high-grade CRGO and CRNGO steels deliver low-loss performance.
- Lower Operating Temperatures: laminations run cooler, extending component life.
- Customisable Designs: E, I or bespoke forms in various thicknesses (0.1 – 0.65 mm).
- Noise & Vibration Reduction: burr-free edges ensure smooth, quiet operation.
- Certified & Traceable Materials: full documentation for regulated sectors.
Industries & Applications
Electrical laminations are vital across power and motion industries:
1. Motors & Rotors
AC/DC, servo and EV motors.
2. Transformers
Power, distribution and toroidal cores.
3. Generators & Alternators
Industrial and renewable energy systems.
4. Inductors & Chokes
For power conditioning and noise suppression.
5. Solenoids & Actuators
For automotive and industrial automation.
6. Relays & Contactors
Control and switchgear applications.
Stephens Gaskets supplies prototype to production batches, supporting industries from aerospace and rail to consumer electronics and HVAC.
Materials We Use
We manufacture from premium magnetic alloys for every requirement:
| Material | Typical Use | Key Benefit |
|---|---|---|
| CRGO (Cold-Rolled Grain-Oriented Steel) | Transformers | Directional flux efficiency & very low core loss |
| CRNGO (Cold-Rolled Non-Grain-Oriented Steel) | Motors & Generators | Uniform magnetic properties in all directions |
| Silicon Steel | General Electrical Applications | Reduced eddy currents and heat |
| Nickel-Iron Alloys (Permalloy) | High-frequency transformers & precision instruments | Extremely high permeability |
| Cobalt-Iron Alloys | Aerospace & high-power motors | High flux density & temperature resistance |
| Amorphous Metals | Energy-efficient transformers | Up to 70 % less core loss than CRGO |
All laminations include C-class insulating coatings to prevent inter-sheet current flow and resist corrosion.
Common Buyer Pain Points – and Our Solutions
| Buyer Challenge | Stephens Gaskets Solution |
|---|---|
| Excessive core losses & heat | High-grade steel & precision stacking reduce losses and temperature. |
| Inconsistent material quality | Traceable steel and certified insulation coatings. |
| Burrs or misaligned stamping | High-precision tooling ensures burr-free accuracy. |
| Limited customisation options | Rapid tooling for bespoke shapes and prototypes. |
| Long lead times from overseas suppliers | Fast UK production and reliable turnaround. |
FAQs
What are electrical laminations used for?
They form the magnetic cores of motors, transformers, and generators, improving efficiency and reducing energy losses.
Can you produce custom lamination shapes?
Yes – we manufacture E, I, U, C, toroidal, and bespoke profiles to customer drawings.
Which materials do you recommend for motors vs transformers?
CRNGO for rotating machines; CRGO for transformers. We can advise based on frequency and flux requirements.
Do you offer small-batch or prototype runs?
Absolutely. We specialise in rapid prototyping with low minimum order quantities.
Are your materials traceable and certified?
Yes – full material certification and traceability are available on request.
For high-performance electrical laminations manufactured in the UK,
Trust Stephens Gaskets.
We deliver precision, consistency, and fast turnarounds for every order – from prototypes to volume production.
Call: 0121 544 5808 | Email: sales@stephensgaskets.co.uk
Request your Electrical Laminations quote today.