BLDC Motor Assemblies
BLDC Motor Solutions
Precision Solutions for BLDC Motor Performance
Precision Stator & Rotor Assemblies for High Power Density BLDC Motors
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.
Powering Next-Generation BLDC Motor Performance
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.
Manufacturing Scope
Punching & Auto Stacking
High-speed lamination punching & stacking; Machine capacities: 45T-150T, High-precision stator and rotor lamination
Material Expertise
Stator & rotor materials: Cobalt iron, Nickel steel, Silicon steel sourced from certified global suppliers
Heat Treatment & Magnetic Optimization
Hydrogen annealing for improved permeability; Stress-relief & oxidation to increase inter-laminar resistance; Temperature-mapped annealing (vacuum, nitrogen, hydrogen)
Simulation & Inspection
2D & 3D Magnetic & Mechanical simulation; Magnetic field checking and optimization
Molding & Overmolding
Rotor overmolding (25T–110T) using Ferromatic & Dr. Boy machines; Vertical molding (25T, 85T) for insert-molded bobbins
Wire Winding & Assembly
Automatic wire cutting, stripping, twisting, crimping; Core and needle winding machines for high-precision coils
Varnish Impregnation
Fully automated trickle varnishing systems to protect and seal windings
Final Testing & QA
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
Technical Specifications
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 |
Key advantages
1
Higher efficiency-to-weight ratio
Maintains tight tolerances and repeatable accuracy across production batches.
2
Longer lifespan with less downtime
Seamless integration of intricate shapes and deep profiles from a single metal sheet.
3
Quieter, spark-free operation
Strong, lightweight components with excellent load-bearing performance.
4
Superior performance in continuous-use applications
Suitable for high volumes with minimized material waste and tooling cost.
5
Surface Finish Options
Includes polishing, plating, and powder coating for corrosion resistance and visual appeal.
6
Custom Engineering
Tailored to customer specifications for material, geometry, wall thickness, and performance.
7
Versatile Application Scope
Applicable in traditional and next-gen sectors—from power grids to electric vehicles.
8
Simplified Installation & Maintenance
Modular formats reduce wiring complexity and speed up installation time.
9
Safety-Focused Design
Engineered to handle high-current loads safely without thermal stress.
10
Global Standards Compliance
Manufactured to meet ISO and electrical industry specifications.
Application Areas
1
Mobility & Transportation
Electric vehicles (2W/3W/4W), hybrid systems, e-mobility drivetrains, automotive actuators
2
Industrial & Automation
Robotics, CNC systems, industrial drives, conveyors, factory automation equipment
3
HVAC & Infrastructure
Fans, blowers, compressors, escalators, elevators, smart building systems
4
Medical & Precision Systems
Surgical tools, diagnostic equipment, laboratory automation, compact motion systems
5
Aerospace & Advanced Applications
Drones, UAVs, actuators, high-reliability motion systems
6
Consumer & Appliance Systems
Power tools, home appliances, cooling systems, compact high-efficiency motors
Why Choose PML?
1
Material & Magnetics Expertise
Decades of experience in magnetic materials, magnets, and magnetic assemblies
2
Custom Design Support
Simulation, prototyping, and product optimization services
3
In-House End-to-End Facilities
From punching to testing under one roof
4
Low-to-High Volume Flexibility
Serving both prototyping and large-scale production
5
Quality Focused Manufacturing
ISO-standard QA processes and traceability
6
Optimized Design
Design optimized for minimal losses in the form of reduced Eddy Currents
Certifications
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)
Frequently Asked Questions
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.
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