Rotor Stamping for Rail Transportation Motor

  • Precision Stamping Process: Utilizes integrated automatic steering manipulators for 90-degree turning operations.
  • High Dimensional Accuracy: Guarantees rotor consistency and balance for high-speed rail applications.
  • Improved Magnetic Efficiency: Silicon steel sheets enhance energy conversion and reduce core loss.
  • Size Range Flexibility: Covers rotor diameters from 210 mm to 400 mm to fit multiple traction motor models.
  • High Mechanical Strength: Withstands high centrifugal forces and vibration during prolonged rail operation.

Technical Specifications

Parameter Specification
Rotor Outer Diameter Ø210–400 mm
Material Non-oriented Silicon Steel Grades
Lam Thickness 0.35 / 0.30 / 0.27 mm (Custom)
Burr Height ≤ 0.02–0.05 mm (Per Drawing)
Runout/Roundness Per Project Spec (Enter Values)
Slot Accuracy ±0.02–0.05 mm Typical
Coating/Insulation C5/C6 or Per Customer
Balancing Prep Balance Holes/Notches Optional
Rotor Type Options Solid Stack, Skewed Slots, Keyway, Shaft Hole Prep

Customization & OEM Service

  • Rotor Size Range: 210 – 400 mm, customizable by project specifications.
  • Material Grades: Multiple silicon-steel options for desired magnetic properties.
  • Stamping Process: Options include compound, high-speed, or progressive stamping.
  • Insulation Coating: Optional protective coating to reduce core loss and enhance corrosion resistance.
  • Prototype & Mass Production: Support for sample development and large-scale manufacturing.
  • Engineering Support: Assistance with rotor slot design, balancing, and tolerance optimization.

Application Fields

  • High-speed rail traction motors
  • Subway and metro traction systems
  • Freight and passenger locomotives
  • Electric multiple units (EMUs)
  • Urban light rail transit

Production Process

Laser-Cut Prototyping
Laser-cut Prototyping
Mold Manufacturing
Mold Manufacturing
Stator and Rotor Lamination Stamping
Stamping
Stator and Rotor Lamination Stacking
Stacking(Optional)
Stator and Rotor Quanlity Control
Quanlity Control
Stator and Rotor Core Packing & Shipping
Packing & Shipping

Advanced Workshop

Mould Workshop
Mould Workshop
Stator and Rotor Lamination Stamping Workshop
Stamping Workshop
Slow Wire Cutting Workshop
Slow Wire Cutting Workshop
Winding Workshop
Winding Workshop
Automatic Production Line for Motor Stators
Stator Automated Production Line
Automated Production Line for Motor Rotors
Rotor Automated Production Line

Partners

  • SIEMENS ABB ALSTOM BYD SAIC CRRC SIEMENS ABB ALSTOM BYD SAIC CRRC
  • GAC Group GREE HONGQI HOZON AUTO INNOMOTICS Li Auto GAC Group GREE HONGQI HOZON AUTO INNOMOTICS Li Auto
  • CSIC FAW SHACMAN WULING YUTONG CSIC FAW SHACMAN WULING YUTONG CSIC FAW
Scroll to Top

Tell us what you need