We are a China manufacturer and supplier of custom cast polyurethane wheels, specializing in high-precision OHT wheels for semiconductor workshop use. Our production capabilities combine advanced mold design, ISO-quality processes, and controlled cleanroom casting to produce PU wheels with low particle emission, ESD protection, and consistent dimensional tolerances. These semiconductor workshop wheels offer excellent abrasion resistance, chemical stability against cleaning agents, and optimized durometer options to minimize skid and vibration.
Our customized PU wheels serve the semiconductor industry, including wafer fabs, chip packaging facilities, and semiconductor cleanrooms. They integrate seamlessly with OHT systems, supporting automated material handling for wafers, reticles, and tool components across high-precision production lines.
Customization Options:
Parameter
Options
Typical Use
Diameter
20 mm – 250 mm (custom sizes)
OHT wheels for semiconductor wafer transfer carts
Width
8 mm – 120 mm
wide-profile wheels for overhead hoist transport systems
Durometer (Shore A)
60A, 70A, 80A, 90A, dual-durometer
select for load distribution in cleanroom OHT wheels
Material Grade
Polyether PU, low-outgassing PU, ESD PU
semiconductor workshop wheels with low particle generation
Bore & Hub
plain bore, keyed bore, bonded steel hub
precision bore for OHT drive shafts and conveyors
Surface Finish
smooth, knurled, grooved
grooved OHT wheels for liquid drainage in wash stations
ESD/Conductive Option
ESD-safe compound, anti-static coating
ESD-safe OHT wheels for wafer handling lines
Load Capacity
up to 5,000 N per wheel (custom rated)
heavy-load OHT wheels for AGV and overhead cranes
Color & Marking
natural, black, custom color
non-marking polyurethane wheels for cleanroom floors
- Chemical resistance to isopropyl alcohol and cleaning agents used in fabs.
- Bonded steel hubs and keyed bores provide secure mounting and torque transfer.
- Competitive price with transparent parameters and documented test data.
Case Studies Across Industries
- Wafer Fab OHT Upgrade: Supplied 200 custom OHT wheels for a top semiconductor fab. Reduced particle contamination by 40% and extended replacement intervals by 18 months.
- Chip Packaging Facility Integration: Custom cast wheels matched existing OHT specs, cutting installation time by 25% while meeting ISO Class 2 cleanroom rules.
- Semiconductor Workshop Pilot: Low MOQ (50 wheels) supported a pilot OHT system, leading to a full 500-unit order post-testing.
Selection Guide of Semiconductor OHT wheels
- Match Durometer to Load: 70A–80A for light wafer transport; 90A–95A for heavy tool components.
- Prioritize Cleanroom Class: ISO Class 1 for wafer fabs; Class 5 for non-critical workshop areas.
