Motor laminations

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Precision Micro offers a market-leading electrical steel manufacturing service, specialising in the production of motor, generator, stator and rotor, and segmented laminations.

Motor laminations – also referred to as silicon or electrical steel laminations – are manufactured using electrical steel sheets. They are stacked then bonded to form the core of an electric motor’s stator and rotor.

Though most metal laminations are often profiled using traditional machining such as stamping, this process can cause residual stress which alters the magnetic properties of electrical steels, and burrs which can cause problems during winding.

Chemical etching motor laminations

Unlike stamping or laser cut laminations, our non-contact, non-heat inducing chemical etching process does not alter the properties of electrical steel motor laminations.

This ensures burr- and stress-free electrical steel laminations can be manufactured with zero distortion and no post-process annealing.

All Precision Micro motor laminations are made from thin-gauge electrical and silicon steels, cobalt alloys, nickel alloys and more.

Our quality management processes and high motor lamination standards for all applicable mechanical and physical characteristics meet or exceed industry standards.

Accuracy

Our etched laminations are extremely accurate and concentric, with tolerances to ±0.025mm.

We can also combine chemical etching with in-house wire EDM for even greater precision to ±0.005mm.

Prototype to volume metal lamination supply – fast

We use low-cost digital tooling, which ensures loose metal laminations and lamination stacks can be supplied in just a few days.

Unique lamination bonding service

We have developed an innovative lamination bonding technique that uses the photoresist protecting the material surface during chemical etching as the bonding agent. This process helps provide insulating properties within the stack and can be more cost-effective than traditional bonding and welding.

Your trusted manufacturer of motor laminations

Precision Micro is the UK’s leading chemical etching company and one of the world’s largest, providing chemical etched components for over 60 years.

With the latest equipment at our disposal, we can create precision motor laminations to your specification quickly and to the highest of quality.

To discuss chemical etched motor laminations manufacturing or request a quotation, get in touch with the team at Precision Micro today!