Electrical appliances Injection Plastic Frame Shell

Custom electrical appliances injection plastic frame shells are precision-engineered enclosures that integrate structural stability, electrical safety, and design flexibility, tailored for home/industrial electrical devices (e.g., kitchen appliances, smart panels, power tools, control cabinets). Below is a structured guide covering core specs, material selection, manufacturing flow, and quality control to ensure your custom project meets performance and compliance goals.

Core Design & Performance Specifications

1. Structural & Dimensional Precision
   • Tolerances: Critical features (bosses, snaps, mating surfaces) ±0.05–±0.1 mm; large frames ±0.1–±0.8 mm; assembly gap 0.05–0.1 mm for tight fitting.
   • Wall thickness: Uniform 1.5–3.0 mm (deviation ≤15%); ribs at 60%–70% of wall thickness to avoid shrinkage/warpage.
   • Draft angles: 0.5°–3° for easy demolding; fillets R≥0.5 mm to reduce stress concentration.
   • Reinforcement: Ribs, bosses, and gussets to boost rigidity without adding excess thickness.
2. Safety & Compliance
   • Flame retardancy: Meet UL94 V0/V1/V2 or GB/T 2408; use flame-retardant grades (e.g., PC+FR, PC/ABS+FR).
   • Electrical insulation: Volume resistivity ≥10¹² Ω·cm; CTI ≥600 for high-voltage appliances.
   • Protection rating: IP54/IP65/IP67 via integrated gaskets, sealed structures, or overmolding.
   • Environmental compliance: RoHS, REACH, and food-contact approvals (for kitchen appliances).

Key Advantages of Custom Injection Molding

• Design flexibility: Complex geometries, undercuts, and integrated features (clips, hinges) reduce assembly steps.
• Cost efficiency: Low per-unit cost at scale; material waste <5% vs. subtractive processes.
• Consistency: Automated production ensures batch repeatability, suitable for 10k+ annual volumes.
• Customization: Textures, colors, and branding via in-mold decoration or post-finishing.

• Home Appliance Plastic Accessories
• Automotive Plastic Accessories
• Furniture Plastic Fittings
• Daily Plastic Parts
• Other Plastic Parts
• Industrial Plastic Injection