LCS Company is a leading manufacturer of stamped motor laminations, from prototypes to large production runs. We make our rotor and stator laminations from highly conductive metals and high-performance nonmetals with tight tolerances. Learn more about motor laminations and how they contribute to motor performance.

Custom Electric Motor LaminationsWhat Are Motor Laminations?

Motor laminations are crucial components of a motor’s stator and rotor. They are made of thin sheets of material that are welded, stacked, or otherwise bonded together. Unlike solid pieces, this design minimizes eddy current losses.

Materials Used in Motor Laminations

Here is a detailed look at the materials we use to make motor laminations.

NGOES (Non-Grain-Oriented Electrical Steel) by Cleveland-Cliffs (Domestic)

Non-grain-oriented electrical steel is specialty steel with uniform magnetic properties like high permeability and low hysteresis loss. NGOES is made with varying silicon and aluminum levels. Electrical steel grades are designed for certain core loss values to reduce power loss. At LCS Company, we use NGOES that meet ASTM, EN, and AISI standards.

GOES (Grain-Oriented Electrical Steel) by Cleveland-Cliffs

Grain-oriented electrical steel is composed of iron and silicon and delivers low energy loss and high permeability. It has a crystal structure that easily magnetizes parallel to its cube edges. This makes them ideal for motor laminations with nonrotating cores and electrical devices like transformers.

Thin Gauge Silicon Steels (Sura)

Thin gauge silicon steels feature very low eddy current losses and high permeability that guarantees excellent insulation coating. We work with Sura materials to make motor laminations for high-efficiency, high-performance applications, such as reactors, motors, transformers, and welding machines.

Thin Gauge Silicon Steels (Arnon), Domestic Source

Most motor laminations have a thickness of 0.356 mm to 0.813 mm, but these ultra-thin silicon steels range from 0.102 mm to 0.178 mm. They are suitable for rotors or stators, depending on whether you’ll use them in a rotating or stationary setting. Using extra-thin laminations gives your high-speed application a greater level of efficiency and performance.

Soft Magnetics by Carpenter Electrification, Domestic Source

Soft magnetic materials are materials that are easy to magnetize and demagnetize. They are made from iron-silicon alloys, amorphous non-crystalline alloys, nickel-iron, or soft ferrites. Soft magnets have high magnetic saturation, high permeability, low hysteresis loss, low core loss, and good toughness. At LCS Company, we use a variety of Carpenter Electrification soft magnetics, including High Permeability 49®, Hiperco® 27, Hiperco® 50A, and HYMU 80®.

Soft Magnetics by Aperam

Aperam soft magnetic motor lamination strips are iron-cobalt alloys suitable for motor, compact generator, and transformer applications. They have a chemical composition of 49% cobalt, 2% vanadium, and 49% iron. They have thicknesses between 0.10 mm and 1.50 mm, widths of 10 mm to 230 mm, and lengths of 500 mm to 3,500 mm.

Soft Magnetic (VAC)

Vacuumschmelze (VAC) soft magnetic materials come in various alloys, including silicon-iron, nickel-iron, cobalt-iron, amorphous, and nanocrystalline alloys. These alloys have high magnetic saturation up to 2.4 T and are ideally suited for high flux density and low weight applications.

Other Materials

We also specialize in these materials:

  • Cold-rolled lamination
  • Cold-rolled steel
  • Insulator end laminations, such as Nomex 410, G-5, G-9, G-10, G-11, and phenolic
  • Copper end lamination

Our Motor Lamination Stamping Capabilities

At LCS Company, we manufacture laminations that meet strict industry regulations and require certifications for manufacturing processes, raw materials, and heat treating. We produce electrical laminations and lamination segments with ½-inch to 24-inch diameters using our punches, which range from 3 to 330 tons.

Our facility’s automation capabilities can regularly produce a few thousand to a few million units per order. To meet our customers’ requirements, we usually process cobalt and nickel alloys, silicon steels, and cold-rolled motor laminations. We also use nonmetal lamination materials such as Delrin, fiberglass, Nomex, PTFE, and rubber.

We build and maintain in-house progressive and compound tooling technologies to ensure products meet exact specifications. LCS also houses laser cutting equipment for small batches and prototyping. Using any motor lamination material we’ve discussed here, LCS Company can create the perfect laminations for your needs. Request a quote today to start your custom order.

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Custom Electric Motor Lamination