Automatic Stacking for Stator Cores & Rotor Cores Manufacturing
Automatic stacking ensures precise lamination alignment, consistent stack height, excellent concentricity, and stable core quality for high-performance stator and rotor cores.
Automatic stacking is a controlled manufacturing process that automatically feeds, aligns, and stacks stamped electrical steel laminations into a precise stator or rotor core. It ensures consistent stack height, accurate alignment, high concentricity, and repeatable core quality.
What Is Automatic Stacking?
Automatic Stacking View
Why Automatic Stacking Matters?
Better Alignment
Reduce lamination displacement
Consistent dimensions
Accurate Stack Height
Excellent Concentricity
Stable Quality
High Production Efficiency
Enhance motor performance
Repeatable production
Support mass production
Higher Lamination Factor
Improve magnetic efficiency
Automatic stacking ensures accurate alignment, consistent stack height, and efficient core assembly for stable motor performance.
Stacking Technologies
Automatic Stacking
Automated feeding and positioning for consistent lamination stacking.
Interlocking
Mechanical locking between laminations for secure and efficient core assembly.
Laser Welding
Precision welding at designated points for strong and stable core construction.
Bonding
Adhesive bonding for uniform structural integrity and reduced mechanical stress.
Pressure Stacking
Controlled compression to achieve the specified stack height and density.
Segmented Stacking
Precise stacking of segmented laminations for complex motor core designs.
Skewed Stacking
Controlled angular offset between laminations for optimized motor performance.
Step Stacking
Controlled variation in lamination positioning to meet specialized core designs.
We offer flexible stacking technologies including interlocking, laser welding, bonding, pressure, segmented, skewed, and step stacking for different motor core designs.
Automatic Stacking vs Manual Stacking
Automatic Stacking
High consistency
Manual Stacking
Accurate stack height
Better concentricity
Higher production efficiency
Stable quality
Suitable for mass production
Operator dependent
Higher variation
Alignment varies
Lower output
Less repeatable
Better for very small batches
VS
Automatic stacking delivers higher precision, consistency, efficiency, and repeatability than manual stacking, making it ideal for high-quality and high-volume stator and rotor core production.
Quality Control During Stacking
Lamination Alignment
Verify accurate positioning of each lamination during stacking.
Stack Height Control
Monitor stack height and compression to meet specified requirements.
Concentricity Inspection
Check inner and outer diameter alignment for accurate core geometry.
Flatness Control
Ensure the assembled core remains flat and free from excessive deformation.
Joining Quality
Inspect interlocking, welding, or bonding for secure lamination assembly.
Pressure Control
Maintain consistent stacking pressure to achieve uniform core density.
Visual Inspection
Check for damaged laminations, misalignment, gaps, and surface defects.
Final Core Inspection
Verify critical dimensions, stack height, concentricity, and overall core quality.
Our stacking quality control ensures precise alignment, consistent stack height, accurate concentricity, reliable joining, and stable core assembly.
Solutions Support
EV Motor Cores
Automatic stacking for high-efficiency electric vehicle traction motors
Precise stacking for compact and high-speed BLDC motors
BLDC Motor Cores
Industrial Motor Cores
Generator Cores
eMobility Motor Cores
Reliable stacking for pumps, compressors, fans, and automation motors
Consistent stacking for generator stator and rotor cores
Efficient stacking for electric motorcycles, e-bikes, scooters, and other electric drive systems
Servo Motor Cores
High-accuracy stacking for precision motion control applications
Our automatic stacking solutions support precision stator and rotor cores for EV, BLDC, servo, industrial, generator, and eMobility motor applications.
Frequently Asked Questions
What is automatic stacking?
Automatic stacking is an automated process that precisely feeds, aligns, and stacks stamped electrical steel laminations into stator or rotor cores, ensuring consistent stack height, concentricity, and production quality.
Why is automatic stacking better than manual stacking?
Automatic stacking provides higher alignment accuracy, more consistent stack height, better concentricity, faster production, and greater repeatability than manual stacking, helping reduce human error and maintain stable core quality in high-volume production.
Which stacking methods are available?
We support interlocking, laser welding, bonding, pressure stacking, segmented stacking, skewed stacking, and step stacking, with the method selected according to the stator or rotor core design and performance requirements.
Can you produce skewed stator cores?
Yes. We can produce skewed stator cores with controlled angular offsets between laminations according to customer drawings and motor design requirements. Skewed stacking can help reduce cogging torque, torque ripple, vibration, and electromagnetic noise in suitable motor applications.
Can you manufacture according to drawings?
Yes. We manufacture custom stator and rotor cores according to customer drawings, 2D/3D CAD files, technical specifications, material grades, lamination thicknesses, stacking requirements, and dimensional tolerances. We also support prototype, small-batch, and mass production.
What tolerances can you achieve?
We can achieve tight dimensional tolerances on critical stator and rotor core features, with actual tolerances determined by the core size, lamination thickness, geometry, tooling, and production requirements. All critical dimensions are controlled according to customer drawings and agreed specifications.