What are the differences between resin and metal trackballs?

Here  are some differences between  Metal trackball and Resin trackball.

‌1. Material & Durability‌

• ‌Metal Trackball‌
  Constructed from stainless steel, it exhibits exceptional impact resistance, corrosion resistance, and wear tolerance, with vertical load capacity reaching 300N (approx. 30kg). Its fully sealed design achieves IP65/IP67 protection, making it suitable for harsh industrial environments involving moisture, oil, or dust.
• ‌Resin Trackball‌
  Primarily made of high-strength phenolic resin, it is lightweight and cost-effective but inferior to metal in abrasion resistance and load-bearing capability23. Typically rated IP54 (dynamic protection), its adaptability to extreme conditions is limited

‌2. Operation Feel & Precision‌

• ‌Metal Trackball‌
  Higher density increases rotational inertia, requiring greater operating force, yet delivers superior positioning accuracy (resolution ≥1600 DPI), ideal for precision-critical applications like medical devices and industrial controls
• ‌Resin Trackball‌
  Lower rolling resistance enables lighter operation, reducing wrist strain during prolonged office use34. Early models offered ~400 DPI resolution, with newer versions showing gradual improvements

‌3. Application Scenarios‌

• ‌Metal Trackball‌
  Designed for demanding environments such as marine explosion-proof systems, medical equipment (e.g., ultrasound machines), and industrial control panels. Custom embedded structures prevent dust accumulation.
• ‌Resin Trackball‌
  Predominantly used in consumer-grade products (e.g., office mice), emphasizing ergonomics and reduced repetitive strain. Regular cleaning is essential to maintain smoothness by preventing oil/dust buildup.

‌4. Maintenance & Lifespan‌

• ‌Metal Trackball‌
  Simplified maintenance due to dust-resistant sealing; lifespan exceeds 500,000 operations
• ‌Resin Trackball‌
  Requires frequent disassembly for ball and pivot cleaning; prone to stuttering from long-term wear

‌5.  Customization‌

• ‌Metal Trackball‌
  supports customization of dimensions (ball diameter: 19mm/38mm/50mm), protection ratings, and panel materials
• ‌Resin Trackball‌
  limited to standard colors (black/white) with minimal customization flexibility