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Why is 10^8 Ω the optimal resistance for anti-static PU conveyor belts?
According to international anti-static standards (such as IEC 61340), a surface resistance below 10^6 Ω is classified as “conductive.”
Although static discharge occurs rapidly, equipment leakage can easily pose an electric shock risk to operators or cause circuit short circuits; a
resistance higher than 10^11 Ω is virtually insulating, making static buildup unavoidable. 10⁸ Ω is precisely the optimal point within this range.
Rapid discharge, no buildup: Static charges generated by friction can be safely conducted through the belt body into the grounding system within
0.1 seconds, effectively preventing cleanliness standards from being exceeded due to dust attraction by static electricity, as well as preventing
potential differences from causing breakdowns in the precision solder joints of PCBs (printed circuit boards).
Safe isolation, no accidental damage: The moderate resistance value forms a natural “physical buffer layer.” Even in the event of an accidental
electrical leak at the equipment end, the 10⁸ Ω impedance effectively limits the current, protecting operator safety and the stability of downstream
precision sensors.
Core Advantages of Our Anti-Static Conveyor Belts.
Precise Anti-Static Performance (Core Metrics): Surface resistance and volume resistance are stably controlled between 10⁶ and 10⁹ Ω (ohms)
This range allows for rapid static discharge without posing a leakage risk due to excessive conductivity, in compliance with international safety
standards.
“Trace-Free” Conveying (High Cleanliness): The PU material itself does not discolor or shed particles, and the antistatic layer effectively
prevents dust from adhering to the belt surface due to static electricity. This makes it particularly suitable for cleanrooms, significantly
reducing the likelihood of dust contamination on product surfaces.
Excellent Flexibility and High Load Capacity: Compared to rubber belts, PU belts offer higher tensile strength at the same thickness and
possess excellent flexibility, making them suitable for drive rollers with smaller diameters and capable of withstanding high-speed starts and
stops as well as frequent direction changes at workstations.
Weather and Chemical Resistance: The antistatic agent is uniformly distributed within the PU layer, preventing rapid leaching and loss of
effectiveness due to washing or oil contamination, and offering strong resistance to weak acids and alkalis.
Quality Commitment: Excellence Inside and Out, No Deterioration.
Unlike inferior belts on the market that rely on surface coatings (effective only in the short term), our technology employs an “internal additive”
permanent anti-static formula. Even after prolonged friction or cleaning with solvents, the resistance value of 10^8 Ω remains stable.
Every roll of belt shipped from our factory comes with a report of the actual measured decay curve, ensuring that the numbers you see reflect the
belt’s true performance every second after your equipment goes into production.