High-Performance Wheels for Cleanroom Transport Systems

As wafer sizes increase and process nodes shrink, Automated Material Handling Systems (AMHS) must evolve beyond simple point-to-point movement, integrating sophisticated tasks such as ID scanning, notch-alignment, and automated load/unload operations. However, the foundation of all integrated smart processes is physical stability. Our high-precision polyurethane wheels are purpose-engineered for these high-throughput, high-purity intelligent transport environments.

Applications of Wheels for Wafer Handling

In modern, intelligent fabs, our wheels serve as indispensable components across several critical paths:

OHT (Overhead Hoist Transport): During high-speed travel and material transfer, OHT systems often perform real-time ID scanning and mapping. Our wheels utilize custom damping characteristics to effectively filter out high-frequency vibrations, ensuring a constant optical alignment distance between scanners and wafer carriers (FOUPs/Cassettes), thereby eliminating read errors caused by mechanical jitter.

OHS (Overhead Shuttle) Transport: For high-frequency, long-distance point-to-point transport, OHS systems demand superior durability. Our wheels feature high tear-strength composite materials that ensure geometric stability during rapid acceleration and deceleration, preventing oscillation or tracking misalignment when shuttles pass through switches or rail junctions.

AGV/AMR Electrostatic Safety Line: In floor-based material handling, our wheels provide both load-bearing support and integrated ESD (Electrostatic Discharge) protection. By utilizing conductive materials throughout the wheel structure, static charges are continuously bled to the ground, providing all-weather protection for sensitive wafers.

The Critical Role of High-Performance Polyurethane Wheels in Smart Fabs

When your transport system handles high-value automated tasks, minor defects in standard industrial wheels can escalate into production downtime or wafer scrap. Our wheels provide "performance reinforcement" for your equipment through three core technologies:

Ultra-low Particle Stability: In stringent ISO-rated cleanrooms, microscopic abrasion is the primary contamination risk. Our high-purity polyurethane formula minimizes friction, keeping particle generation near zero.

ESD Protection: Unlike coated wheels that fail as the surface wears away, our conductive fillers are distributed uniformly throughout the entire material, ensuring consistent, long-term anti-static performance.

Vibration Damping: Integrated smart processes require smooth operation. By optimizing the Shore hardness of our polyurethane, we dampen the inertial vibrations caused by motor start-stops, providing a rock-solid physical baseline for online ID verification and notch-alignment.

In the 200mm to 300mm semiconductor production chain, intelligent upgrades are only as reliable as their physical foundation. Our polyurethane wheels are more than just spare parts, ensuring the efficiency of your automated ID scanning, wafer alignment, and material handling.