High-quality motor laminations and stampings for OEM electric motor manufacturing
Motor laminations — also known as electrical laminations, stator laminations, rotor laminations, pole laminations, and segmented stator laminations — are profiled from electrical steels, stacked then bonded to form the core of transformers or the stator and rotor of electric motors.
With our die-making technology and equipment we can produce and supply various types of laminations for all types of motors. We offer a wide range of world-class, yet cost-effective lamination Stamping Solutions.
Our capabilities cover the full range of stamping of Rotor & Stators of micro-motors, automotive motors, hybrid motors, appliance motors, power tools, industrial motors, generators, alternators, and elevators.
| Material | Specification |
|---|---|
| CRML | Cold Rolled Motor Lamination Steel |
| NGO | Non-Grain Oriented Steel |
| GO | Grain Oriented Steel |
| Silicon Steel | Various grades for electrical applications |
| Nickel Alloys | High-performance applications |
| Cobalt Alloys | Specialized magnetic applications |
HVAC motors, Window wipers/lifts, Seat adjusters, EPS, Fuel pumps, ABS, Alternator & Starter motors
Washing machines, Vacuum cleaners, Mixers, Compressors, Blowers, Refrigerators
Drills, Grinders, Saws, Sanders, All power tool motors
Pumps, Generators, Alternators, Elevators, Compressors
Electric vehicle motors, Hybrid systems
Technical capability reference
Motor laminations form the magnetic core of stators and rotors. The supplied capability document covers loose laminations, stacked and bonded cores, segmented stators, die-cast rotor/stator assemblies and prototype routes from laser or wire cutting through to high-speed progressive stamping.
| Parameter | Documented capability |
|---|---|
| Material thickness | 0.20, 0.30, 0.35, 0.50 and 0.65 mm |
| Stamping size | OD 4 mm to 1250 mm |
| Workpiece tolerance | ±0.005 mm |
| Die tolerance | 0.001–0.003 mm |
| Press-line range | 60–450 ton high-speed lamination stamping lines |
| Progressive speed | Up to 800 strokes/minute in the capability document; application dependent |
| Materials | CRML, NGO, GO, silicon steel, nickel alloys and cobalt alloys |
| Standards | ASTM, AISI, BS, DIN, JIS and NF references |
Notching tools, wire EDM and laser cutting for development parts, prototype stacks and pilot series.
Compound or insert-based tooling where a full high-volume progressive die is not justified.
Carbide progressive tooling with interlocking, indexing and skewing options for automated core stacking.
Index, index + skew, skew, wrap-up core and segment-core die concepts are described in the source capability document.
Technical information is presented from Motor Components Ltd capability documentation and should be matched to the drawing, material, duty and production requirement for each enquiry.
Detailed technical information
Technical wording, tables and graphics below are reproduced from the supplied Motor Components capability material and are displayed directly on this product page.
Electric motors are a machine design to convert electric energy into mechanical energy through electromagnetic interaction. A motor is a machine designed to convert a form of energy into physical power motors are motors that take advantage of kinetic energy.
There are two kinds of electrical motors--those that run with DC (direct current), and those that run on AC (alternating current). Both kinds rely on electromagnetism to create electromagnetic fields that interact with another magnet to produce motion.
A motor core is a part of the rotor comprising magnetic materials. it is the core part of the motor designed to play the passageway of the magnetism and generate electricity. A motor consist of a stator, rotor, and housing. The motor core is a core part that is designed to increase the quality and efficiency of the motor.
Motor laminations – also known as electrical laminations, stator laminations, rotor laminations, pole laminations, and segmented stator laminations – are profiled from electrical steels, stacked then bonded to form the core of transformers or the stator and rotor of electric motors.
With our die- making technology and equipment we can produce and supply various types of laminations for all types of motors.
We offer a wide range of world-class, yet cost-effect lamination Stamping Solutions that cover the full range of stamping of Rotor & Stators of micro-motors, automotive motors, hybrid motors, appliance motors, power tools, industrial motors, generators, alternators, and elevators.
"No matter what is the size of the component, with a wide range of presses & tools, and a strong commitment to progression stamping technology for Electrical and automotive industries."
We provide a flexible, in-house capability to produce precision laminations parts to your specific requirements. This is a one-stop capability from design, material sourcing, production.
We offer a wide range of world-class, yet cost-effective motor lamination Stamping Solutions that cover the full range of stamping of Rotor & Stators of micro-motors, automotive motors, hybrid motors, appliance motors, power tools, industrial motors, pumps, generators, alternators, and elevator motor applications.
Fully integrated and tooled-up, high speed, high precision Lamination Stamping Press Lines from 60 to 450 Tons with integrated coil handling and feeding, quick-change Tooling systems and Stack / Scrap handling systems.
2 point, mid/low speed, large format Stamping Press Lines
World-class, high performance yet cost-effective progressive and compound Lamination Stamping Tools with integrated skew, stack and indexing systems built for high speed stamping up to 800spm.
| Our Capabilities: Low Tooling Cost Quick Turnaround Engineering Assistance Fast Quote Response In-House Tool Design | Your Benefits: Reduced Capital Expense Quicker Time to Market Evaluate Multiple Designs or Materials Cost-Effective for Low to Volume Production |
We can design, manufacture singled, doubled and tripled row interlocked / skew / Indexed, buckle bonded, rivet bonded, stamping tool as per customer requirements.
From concept through production, all phases of manufacturing engineered for high precision stampings. in-house tool design, sample, prototype concept to mass production. The plant is equipped with a wide range of high speed pressing machine technologies ranging from 60T to 450T, CNC lathes, slitting machines, mechanical press, Milling machines, Grinding machines, Punching machines, EDM Wire cutting machines, Drilling machines, die casting machines, Gas-nitriding furnace, carburizing, High-Frequency heat treatment machine, powder coating, testing instruments, etc.
| Description | STAMPINGS, MOTOR LAMINATIONS |
| STAMPING TYPES | Armature laminations Rotor Laminations Stator Laminations Notched Laminations Welded Laminations Segmented Stator Laminations Custom laminations Interlocked laminations Buckle & rivet bonded laminations Screw bolted laminations Die-cast rotors & Stators (Aluminium/copper) Loose laminations Bonded laminations Laser or wire cut laminations Wound stators & rotors Transformer Laminations |
| Materials | CRML- Cold Rolled Motor Lamination Steel NGO- Non-Grain Oriented Steel GO - Grain Oriented Steel Silicon steel Nickel alloys Cobalt alloys |
| Thickness | 0,20 - 0,30 – 0,35 – 0,50 – 0,65 mm |
| Stamping size | From OD 4mm- up to 1250mm |
| Workpiece Tolerance | ± 0.005mm, |
| Die tolerance | 0.001-0.003 mm |
| Die life | 150-200 million strokes |
| Certifications | ISO 9001 / TS16949 |
| Standards | ASTM, AISI, BS, DIN, JIS, NF |
| Production | Low to high volume production |
| Tooling | Most tooling is designed & manufactured by us with our core expertise and Tool Modelling, Tool Path Generation, VMC Machining, EDM Processes, and other related activities, which are done in house to cut down & maintain development times at the lowest. We take responsibility for proving the components of the dies made by us. |
| Process | Tooling, slitting, progressive stamping, CNC machining, blanking, notching, grinding, milling, boring, drilling, shearing, deburring, cutting, casting, welding, laser cutting, surface treatment, ultrasonic cleaning, inspection, etc. |
| Secondary operations | Annealing Stress Relief Annealing Cleating /stacking and welding. Punching Bonding Pressing Electrostatic Epoxy Coating Die casting Machining Grinding Winding |
| Surface treatments | Electrostatic Epoxy Coating, (B, F & H Class) painting, polishing, brushings, plating ( zinc, nickel, chrome, silver, titanium) powder coating, anodizing, electrophoretic coating, PVD, as per requirement. |
| Heat Treatments | Induction hardening, normalization, stress relive annealing, quenching, tempering, case Hardening, nitriding, etc. |
| Samples | We offer lamination in Loose, riveted, skewed, bonded, welded, punched-packed. Laser-cut or wire-erosion special sheets for sample production, prototype, and pilot series. |
| Applications | Automotive, home appliances, power tools, industrial motors and pumps, marine, aerospace, EV, other electrical machinery applications |
 Processing equipments | Servo Stamping presses Hydraulic presses CNC machining centre CNC Grinding machines Punching machines CNC laser cutting machines WEDM Machines CNC Milling machines CNC Bending machines CNC welding machines Drilling & boring machines Cutting and Shearing machines Bevelling machine Riveting machines Casting machines Heat treatment furnace/equipment Nitriding equipment Cleaning equipment Testing and Inspection equipment etc... |
Inspections | CMM (Coordinate Measuring Machine) Vision System Digital tool microscope Iron Loss Tester, Epstein Tester Overhead projectors Optical System Surface roughness measuring instrument Optical Comparator Run-out instrument Gauging instruments; for thread, height, roundness Micrometres Die-cast Rotor test instrument Rockwell/Vickers Hardness Tester Tensile test machine Interlock Pull strength Checking Instrument Stator Winding Surge Tester, HV, Resistance Tester Coat Gauge, Pin Gauge Bore Scope Bore Gauges Custom Gauging Gage Calibration System |
Most tooling is designed & manufactured by us with our core expertise and Tool Modelling, Tool Path Generation, VMC Machining, EDM Processes, and other related activities, which are done in house to cut down & maintain development times at the lowest. We take responsibility for proving the components of the dies made by us and we maintain the tooling at no extra cost for it s life.
Short run and prototype requirements can be produced by notch tooling, wire EDM or laser cut. The tooling cost is low but the piece part price is significantly higher.
Intermediate tooling for quantities of up to five million can be designed using our proprietary extensive Master Die Insert Program, which offers all the advantages of a full production tool but at a much lower cost.
For higher production volumes, Carbide Progressive Tooling is available with guarantees to 100 million parts, which offers all the advantages of a full production tool but at a much lower cost.
We can design, manufacture singled, doubled and tripled row interlocked / skew / Indexed, buckle bonded, rivet bonded, stamping tool as per customer requirements.
Ideal for high volume requirements. The cost of the stamping tool is high, but the unit price per piece of stator and rotor core becomes more economical.
Progressive stamping die can be used to stamp loose sheets or auto-stacked cores.
We can also build a skewing mechanism for the rotor or 180-degree indexing feature for the stator.
We design the die for stamping stator and rotor core, outsource die parts for fabrication, then assemble the progressive stamping die in the house.
Currently, the thinnest material we can stamp with a progressive stamping die is 0.2mm.
The quality: tolerance of spare parts is within 0.002mm, tolerance of feeding length is within 0.003-0.005mm, and roughness is within ra 0.04-0.1.
Efficiency: stamping speed reaches 300-1200 strokes per minute (depend on product type)
durability: single shot die life 200-600 million times (according to the material and set), a comprehensive life 1.2-2.5 million times.
Dies performing automated stacking through the rotation of each lamination at a fixed angle (30°, 45°, 60°, 90°) while performing core stacking
(improve concentricity and thickness deviation of stack height)
Materialize the fixed angle and minute angle at the same time while performing core stacking
Dies performing automated stacking through the rotation of each core at a minute angle while performing core stacking (reduce motor noise)
The ideal option for small quantity rotor-stator production.
The tooling cost is cheaper compared with progressive stamping die, but the labour cost is higher. Only loose sheets can be produced from a compound tool.
We can offer an economical and flexible solution to prototype projects to supports new developments in your projects.
SAMPLES:
The first laminations or lamination stacks can be delivered a few weeks after receipt of the customer drawings. This is possible through simple, standardized compound dies, based on pre-fabricated parts.
Our stringent quality management ensures product consistency covering all processes from raw material procurement to finished goods production. The products and processes pass through stringent quality tests benchmarked with global standards.
All other critical test equipment, comparators, surface plates & jig grinders are under contract to be maintained in accordance with the manufacturer’s original specifications
Our manufacturing facilities are ISO 9001:2015 or TS/IAFT16949:2016 certified. Our greatest asset is delivering outstanding product quality and first-class service to our customers globally.
The Toolroom is responsible for the maintenance and repair of all production tooling. We will maintain all customer tooling at no charge for the guaranteed life of the tooling.
Our components are efficiently manufactured to give our customers very competitive pricing without compromising product quality.
We offer warehousing locations across the UK and Europe that are set up for stocking programs and deliveries to match customer specific manufacturing and inventory requirements.
AUTOMOTIVE  | HVAC motors Window wiper motors Window lift motors Sunroof motors Seat adjuster motors Mirror adjuster motors EPS- Electric Power steering motors Washer pump motors Fuel pump motors ABS motors APS/parking Motors Power antenna motors Alternator & Starter motors |  |
HOME APPLIANCES  | FHP motors Washing machine motors Vacuum cleaner motors Mixer motors Shaded Pole Motors Gear Motors Compressor Motors Blower Motors Brushless DC Motors PMDC Motors Pump Motors Fan Motors / Micromotors / DC Motors |  |
POWER TOOLS | Power drills / Hammer drills Power Screwdriver Impact driver Angle grinder Belt Sander Circular Saw Jigsaw / Miter Saw Belt sander / Orbital Sander Planer / Rotary Tool Router /Wall Chaser |  |
INDUSTRIAL MOTORS | AC/DC Motors PMDC motors Slipring motors Step motors Servo motors Traction motors DC generators Ex-proof motors Tacho generators / Actuators |  |
MEDICAL & AURONICS | Surgical tools Medical Pumps Tacho generators Other Motors |  |
OEM sourcing guidance
Stator and rotor laminations form the magnetic core of electric motors and generators. Important sourcing factors include electrical steel grade, lamination thickness, stamping geometry, stack configuration, insulation coating and any rotor casting or assembly requirement.
Use these services when the requirement needs development, validation or a new sourcing route.
Buyer questions
A drawing or CAD profile, steel grade, thickness, stack requirement, tolerances and expected quantity provide a strong starting point.
Yes. Stator and rotor cores can be reviewed as individual parts or as related components in a motor programme.
Sample and development requirements can be discussed before repeat production, including prototype or pre-production validation routes.
Our stringent quality management ensures product consistency covering all processes from raw material procurement to finished goods production. The products and processes pass through stringent quality tests benchmarked with global standards.
Send us your technical drawings, specifications, or samples for an obligation-free quotation. Our team responds within 24 hours.
ISO 9001 / IATF 16949 Certified