Double-Row Progressive Die for Encapsulated Motor

The core magnetic components of plastic-sealed (encapsulated) motors used in household appliances, HVAC systems, and industrial equipment. Double-Row Progressive Die for Encapsulated Motor is designed to address the high-volume production demands of encapsulated motor manufacturers, this dual-row die integrates 14-24 stamping stations in a reinforced, corrosion-resistant structure, enabling simultaneous production of two sets of motor core components per stroke—doubling production efficiency while maintaining encapsulated motor-grade dimensional tolerance (±0.004mm) critical for post-molding precision and motor performance stability.

Built on Deaote's 15+ years of expertise in precision mould manufacturing for the motor industry, our Double-Row Progressive Die for Encapsulated Motor features a wear-resistant DC53/SKD11 steel core with TiCN + PTFE composite coating (hardness ≥64 HRC), ensuring a service life of 820,000+ stamping strokes (2.3x longer than standard dies) and resistance to plastic resin corrosion during the encapsulation process. The optimized stress distribution design and anti-deformation structure make it ideal for 24/7 mass production lines of small (0.1-1.5kW) to medium (1.5-5kW) encapsulated motors used in air conditioners, washing machines, water pumps, and refrigeration units.

Manufactured under ISO 9001:2015 and IATF 16949 quality standards, the double-row progressive die is fully compatible with high-speed automated stamping lines (65-110 strokes per minute) and features integrated in-die vision inspection systems for real-time quality control (defect detection rate ≥99.9%). Compatible with all major encapsulated motor brands (Panasonic, LG, Midea, Gree), it seamlessly integrates into global household appliance and industrial motor manufacturing systems, reducing production cost per unit by 31% compared to single-row die solutions.

Product Series

DT-PD-EM1 Series (Home Appliance Encapsulated Motor)

±0.004mm accuracy, 820,000 strokes life, 0.1-1.5kW stator/rotor core components. Ideal for washing machine, air conditioner, and refrigerator encapsulated motor mass production.

DT-PD-EM2 Series (Industrial Encapsulated Motor)

±0.006mm accuracy, 750,000 strokes life, 1.5-5kW stator/rotor core components. Suited for water pump, fan, and industrial blower encapsulated motor production.

DT-PD-EM-Custom Series (OEM Encapsulated Motor)

Tailored dimensional accuracy (±0.003-0.007mm), custom stamping stations (12-28), compatible with silicon steel (35W250/50W400). Designed for brand-specific OEM encapsulated motor production.

Core Advantages

1. Double-Row Design for 100% Production Efficiency Gain

Integrated two parallel stamping rows enable simultaneous production of two identical or mixed encapsulated motor core components per stroke, doubling output compared to single-row progressive dies. The optimized material strip nesting layout also reduces silicon steel waste by 16% (from 22% to 6%), lowering raw material costs—the largest cost component in encapsulated motor core production—significantly.

2. Encapsulated Motor-Grade Precision for Post-Molding Stability

5-axis CNC machining with ±0.0007mm positioning accuracy and in-die laser gauging systems ensure component dimensional tolerance of ±0.004mm—critical for stator/rotor air gap uniformity (≤0.008mm) and post-encapsulation motor noise reduction (≤52dB) and energy efficiency (IEC 60034 compliance). Consistent precision eliminates post-stamping rework, improving production yield to 99.5%.

3. Corrosion & Heat-Resistant Coating for Long Service Life

Core die components made of DC53 (high-strength steel) and SKD11 (cold work steel) with TiCN + PTFE composite coating (hardness ≥64 HRC) deliver 820,000+ stamping strokes—2.3x longer than standard dies (350,000 strokes). The PTFE coating provides corrosion resistance to plastic resin residues, while the heat-resistant TiCN layer withstands stamping temperatures up to 180°C, extending maintenance intervals to 200,000 strokes (vs. 65,000 for conventional dies).

4. High-Speed & Fully Automated Compatibility

Optimized die structure with reinforced stress distribution supports high-speed stamping (65-110 strokes per minute) and full integration with automated material feeding, stacking, and packaging systems. The in-die vision inspection system detects burrs (≤0.008mm), dimensional deviations, and surface defects in real time, eliminating manual quality control and reducing scrap rate to 0.08%.

5. Silicon Steel Optimization for Encapsulated Motor Efficiency

Specialized punch edge design with micro-radius (R0.012mm) minimizes silicon steel (35W250/50W400) material stress and edge burrs, preserving the magnetic properties of the steel and improving encapsulated motor energy efficiency by 4-6%. Compatible with both grain-oriented (GO) and non-grain-oriented (NGO) silicon steel, meeting global home appliance energy efficiency standards (EU Ecodesign, US ENERGY STAR).

6. Modular Customization for Diverse Encapsulated Motor Requirements

Full customization of stamping stations (12-28), material compatibility (0.25-0.5mm silicon steel), surface finish (Ra ≤0.5μm), and dimensional tolerance (±0.003-0.007mm). Optional features include in-die notching, stacking lamination, and anti-corrosion coating—meeting global encapsulated motor OEM requirements for post-molding assembly compatibility.

Technical Specifications

±0.004mm Dimensional Accuracy820,000+ Strokes Service Life2x Production EfficiencyHeat-Resistant Die CoatingCustom for All Encapsulated Motor Types

Application Scenarios

Deaote's Double-Row Progressive Die for Encapsulated Motor is engineered for global motor manufacturers across diverse sectors:

● Home Appliance Motors: Mass production of 0.1-1.5kW stator/rotor core components for washing machine, air conditioner, refrigerator, and dishwasher encapsulated motors

● Industrial Motors: Production of 1.5-5kW stator/rotor core components for water pump, fan, blower, and conveyor encapsulated motors

● HVAC Motors: Custom stamping of core components for air handler, heat pump, and central air conditioning encapsulated motors

● OEM Motor Manufacturing: Custom die solutions for global encapsulated motor OEMs (Panasonic, LG, Midea, Gree, Whirlpool) for brand-specific motor production