Technical Comparison: MDI vs. TDI Polyurethane Screen Panels for Industrial Screening Applications

Material Science Perspective on Screening Panel Performance‌

Industrial screening operations require specialized polyurethane formulations where isocyanate selection fundamentally determines performance. This analysis contrasts MDI (diphenylmethane diisocyanate) and TDI (toluene diisocyanate) based panels across critical operational parameters.

‌Molecular Structure & Core Properties‌

1. ‌MDI Formulations‌

   • Structural advantage: Aromatic ring configuration
   • Hardness range: 85-95 Shore A
   • Temperature tolerance: -30°C to 80°C
   • Hydrolysis resistance: 3X superior to TDI

2. ‌TDI Systems‌

   • Flexibility: 40% greater elasticity
   • Low-temperature performance: Operational at -40°C
   • Cost advantage: 25-30% lower material expense

‌Performance Benchmarking‌

‌Application-Specific Recommendations‌

• ‌Heavy-Duty Mining Operations‌:

  • Optimal: MDI for iron/copper ores
  • Throughput: Handles 300-500t/h feed rates
  • Case Study: Chilean copper mine achieved 240-day lifespan vs. 160 days with TDI

• ‌Specialized Scenarios‌:
  Agricultural Screening:

  • Preferred: TDI for grain/feed
  • Benefit: Zero particle fracturing
    Low-Temperature Environments:
  • Mandatory: TDI below -20°C
  • Arctic mining applications

‌Selection Methodology‌

1. ‌Decision Matrix‌:

   • High abrasion → MDI
   • Flexibility needed → TDI
   • Chemical exposure → MDI
   • Budget constraints → TDI

2. ‌Cost-Performance Analysis‌:

   • MDI: $28/m² (premium performance)
   • TDI: $19/m² (economic solution)
   • ROI calculation template provided

‌Technical Support Services‌
HUATAO Group offers:

• Material testing protocols
• Custom formulation development
• Field performance optimization

‌Conclusion‌
The MDI/TDI selection requires evaluating:
✓ Material characteristics
✓ Operational environment
✓ Economic parameters
✓ Throughput requirements

Contact us ↓

Annie Lu

Huatao Group

annie.lu@huataogroup.com

Mobile: 0086 18032422676 ( Whatsapp/Wechat/Viber)

https://wa.me/008618032422676

Web:www.tufflexscreen.com

www.huataoscreen.com

www.puscreenpanel.com

Our Hot-selling Products:

HUATAO Hot-Selling Polyurethane Product List as below: