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Our 3"/4"/5" Fix Medium Duty Conductive Or Anti-static Caster Wheels are tailored for medium-duty industrial scenarios, balancing reliable load support and strict electrostatic control. Available in three practical sizes—3" (75mm), 4" (100mm), and 5" (125mm)—these fixed-design casters enable smooth, consistent movement while eliminating electrostatic discharge (ESD) risks. They are a go-to choice for electronics manufacturing plants, pharmaceutical cleanrooms, and data centers, where static buildup could damage sensitive components (like semiconductors or circuit boards) or disrupt sterile production processes. Each caster’s load capacity scales with size: 80kg for 2.5" (63mm) models, 100kg for 3" models, 120kg for 4" models, and 140kg for 5" models—perfect for transporting assembly carts, storage bins, and light industrial equipment.
| Wheel |
| Color : Grey |
| Hardness: 65-70 Shore A |
| Wheel core : PP |
| Wheel tread : TPR |
| Conductive ：10^3-10^5 (332-0G) |
| Anti-static ：10^8-10^10 (332-0G) |
| Model | Wheel Material | Wheel Dia | Tread Width | Load Height | Plate Size | Plate Size | Hole Size | Load Capacity |
| 301ZN-010-63-333-2G | ESD/ AS TPR | 63 (2.5") | 32 | 92 | 96*66 | 75*45 | 8.5 | 80 |
| 301ZN-010-75-333-2G | ESD/ AS TPR | 75(3") | 32 | 105 | 96*66 | 75*45 | 8.5 | 100 |
| 301ZN-010-100-333-2G | ESD/ AS TPR | 100(4") | 32 | 130 | 96*66 | 75*45 | 8.5 | 120 |
| 301ZN-010-125-333-2G | ESD/ AS TPR | 125(5") | 32 | 158 | 96*66 | 75*45 | 8.5 | 140 |
| Model | Wheel Material | Wheel Dia | Tread Width | Load Height | Plate Size | Plate Size | Hole Size | Load Capacity |
| 301ZN-020-63-333-2G | ESD/ AS TPR | 63 (2.5") | 32 | 92 | 96*66 | 75*45 | 8.5 | 80 |
| 301ZN-020-75-333-2G | ESD/ AS TPR | 75(3") | 32 | 105 | 96*66 | 75*45 | 8.5 | 100 |
| 301ZN-020-100-333-2G | ESD/ AS TPR | 100(4") | 32 | 130 | 96*66 | 75*45 | 8.5 | 120 |
| 301ZN-020-125-333-2G | ESD/ AS TPR | 125(5") | 32 | 158 | 96*66 | 75*45 | 8.5 | 140 |
| Model | Wheel Material | Wheel Dia | Tread Width | Load Height | Plate Size | Plate Size | Hole Size | Load Capacity |
| 301ZN-022-63-333-2G | ESD/ AS TPR | 63 (2.5") | 32 | 92 | 96*66 | 75*45 | 8.5 | 80 |
| 301ZN-022-75-333-2G | ESD/ AS TPR | 75(3") | 32 | 105 | 96*66 | 75*45 | 8.5 | 100 |
| 301ZN-022-100-333-2G | ESD/ AS TPR | 100(4") | 32 | 130 | 96*66 | 75*45 | 8.5 | 120 |
| 301ZN-022-125-333-2G | ESD/ AS TPR | 125(5") | 32 | 158 | 96*66 | 75*45 | 8.5 | 140 |
Wheel Tread: Premium thermoplastic rubber (TPR) with a hardness of 65-70 Shore A. This material delivers strong abrasion resistance, absorbs shocks during movement, and reduces operational noise, protecting both the caster and your facility’s flooring (e.g., epoxy or vinyl).
Wheel Core: Durable polypropylene (PP) that combines lightweight performance with corrosion resistance, making it suitable for humid or chemical-exposed environments (such as labs with solvent use).
Color: Neutral grey finish that integrates easily with most industrial equipment and workspace aesthetics.
Fixed Configuration: Non-swivel design ensures straight-line movement, ideal for applications requiring predictable mobility (e.g., production line carts that follow fixed paths).
Mounting Plate: Universal plate dimensions (9666mm and 7545mm) with an 8.5mm hole size, allowing quick installation on standard equipment frames without custom modifications.
Electrostatic Performance: Meets 332-0G standards, with a conductive range of 10³-10⁵ ohms and an anti-static range of 10⁸-10¹⁰ ohms, effectively dissipating static to prevent ESD damage.
ESD Risk Mitigation: Actively dissipates static electricity to protect sensitive electronics from damage and reduces fire hazards in flammable environments (e.g., facilities handling volatile chemicals).
All-Environment Durability: TPR tread and PP core resist oils, solvents, and moisture, ensuring no rust or degradation even in humid or chemical-heavy settings—extending the caster’s service life.
Floor & Noise Protection: Shock-absorbing TPR minimizes vibration, while the non-marking tread avoids scratches on delicate flooring. Quiet operation also improves workplace comfort in busy facilities.
Low-Maintenance Design: Heavy-duty construction reduces the need for frequent replacements. No regular lubrication or complex upkeep is required, cutting down on operational costs and downtime.
A1: While the fixed design prioritizes straight-line movement, the shock-absorbing TPR tread helps cushion minor floor irregularities. For highly uneven surfaces, we recommend pairing them with equipment that has adjustable feet, but they perform reliably on standard industrial flooring (e.g., concrete or polished concrete).
A2: Yes. The TPR and PP materials are non-toxic, non-contaminating, and resist dust buildup—critical for maintaining sterile conditions in pharmaceutical manufacturing or medical device facilities. Their anti-static property also prevents dust attraction, further supporting cleanroom requirements.
A3: We suggest quarterly testing with a 332-0G compatible resistance meter. Under normal use (avoiding sharp impacts or extreme temperatures), the electrostatic properties remain effective for 2-3 years. If the TPR tread is cracked or worn, replace the caster immediately to maintain ESD protection.
