BLDC Motor Assemblies
Precision Solutions for BLDC Motor Performance
Leveraging high-performance materials like CoFe, precision stamping, and controlled heat treatment, PML delivers stator and rotor assemblies that push the limits of power density and efficiency.
With the exponential growth in electric vehicles, automation, and urban infrastructure, BLDC (Brushless DC) motors have become a cornerstone of modern motion systems. At PML, we offer end-to-end manufacturing and design services for Stator and Rotor assemblies-the core functional components of BLDC motors.
High-speed lamination punching & stacking; Machine capacities: 45T-150T, High-precision stator and rotor lamination
Stator & rotor materials: Cobalt iron, Nickel steel, Silicon steel sourced from certified global suppliers
Hydrogen annealing for improved permeability; Stress-relief & oxidation to increase inter-laminar resistance; Temperature-mapped annealing (vacuum, nitrogen, hydrogen)
2D & 3D Magnetic & Mechanical simulation; Magnetic field checking and optimization
Rotor overmolding (25T–110T) using Ferromatic & Dr. Boy machines; Vertical molding (25T, 85T) for insert-molded bobbins
Automatic wire cutting, stripping, twisting, crimping; Core and needle winding machines for high-precision coils
Fully automated trickle varnishing systems to protect and seal windings
Fit/Form: CMM, VMM, Stack Strength Tests. Operationa: BH curves, Coercivity, Hi pot test, Inductance, Q Factor, Z ,Resistance, IR tests. Complete traceability and process documentation is maintained
Detailed dimensional and electrical specifications of PML stator and rotor assemblies, engineered for high-efficiency BLDC motor performance.
Parameter | Value / Range |
Outer Diameter | 9.6 mm – 350 mm |
Inner Diameter | 6mm – 80 mm |
Height | 15 – 50 mm |
No. of Poles | 4 to 20 |
Phase | Single-phase & Three-phase |
Winding Class | H Class |
Mounting | OD Mount / Custom |
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Maintains tight tolerances and repeatable accuracy across production batches.
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Seamless integration of intricate shapes and deep profiles from a single metal sheet.
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Strong, lightweight components with excellent load-bearing performance.
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Suitable for high volumes with minimized material waste and tooling cost.
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Includes polishing, plating, and powder coating for corrosion resistance and visual appeal.
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Tailored to customer specifications for material, geometry, wall thickness, and performance.
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Applicable in traditional and next-gen sectors—from power grids to electric vehicles.
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Modular formats reduce wiring complexity and speed up installation time.
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Engineered to handle high-current loads safely without thermal stress.
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Manufactured to meet ISO and electrical industry specifications.
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Electric vehicles (2W/3W/4W), hybrid systems, e-mobility drivetrains, automotive actuators
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Robotics, CNC systems, industrial drives, conveyors, factory automation equipment
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Fans, blowers, compressors, escalators, elevators, smart building systems
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Surgical tools, diagnostic equipment, laboratory automation, compact motion systems
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Drones, UAVs, actuators, high-reliability motion systems
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Power tools, home appliances, cooling systems, compact high-efficiency motors
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Decades of experience in magnetic materials, magnets, and magnetic assemblies
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Simulation, prototyping, and product optimization services
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From punching to testing under one roof
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Serving both prototyping and large-scale production
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ISO-standard QA processes and traceability
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Design optimized for minimal losses in the form of reduced Eddy Currents
With over 65 years of manufacturing excellence, PML delivers Stator Assembly trusted by OEMs and Tier 1 suppliers across sectors demanding robust performance.
ISO 45001
Occupational Health and Safety (OH&S) management systems
ISO 14001
Environmental Management Systems (EMS)
ISO 9001
Quality Management Systems (QMS)
IATF 16949
International Standard for Automotive Management Systems
AS 9100
Aerospace Quality Management System (QMS)
The stator includes windings that generate a magnetic field when energized. The rotor, made of permanent magnets, aligns with the magnetic field. Electronic switching of the stator phases causes continuous rotor rotation.
Rely on PML IN625 superalloy for exceptional heat and corrosion resistance across demanding environments.
Rely on PML IN625 superalloy for exceptional heat and corrosion resistance across demanding environments.
Pioneering cutting-edge technology to develop reliable, high-performance magnetic components and engineering solutions.
