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3.0-5.0 Inch Medium Black TPU Top Plate Caster Wheels (75-130kg)
Step 1: Mounting Style
Rigid
✓
Swivel Plate
✓
Threaded Stem
✓
Bolt Hole
✓
Swivel Stem
✓
Stem Ring
✓
Expanding Stem
✓
Others
✓
Step 2: Wheel Diameter
2.5“(65mm)
3“(75mm)
4“(100mm)
5“(125mm)
三、产品特性与优势 / Features & Benefits
- Single Ball Bearing Swivel: Precision ball raceway design ensures smooth, effortless 360° rotation even under medium-duty loads. Reduces push force and improves maneuverability. 单滚珠轴承万向旋转：精密滚珠滚道设计，中型负载下也能平稳轻松 360° 旋转。降低推力，提高操控性。
- Premium TPU Wheel — Medium Duty: High-quality TPU tread for medium-duty applications — Black finish. Non-marking with reliable rolling performance. 32 mm wide tread for improved stability under load. 优质 TPU 轮面 — 中型：优质 TPU 中型胎面——黑色。不留痕迹，滚动可靠。32 mm 宽胎面，负载下更稳定。
- Total Lock Brake (Type C): Simultaneously locks both wheel rotation and swivel movement. Keeps equipment securely in place under load. Type C plate brake — easy to engage. 全锁刹车（C 型）：同时锁定轮子旋转和万向转动。负载下安全锁止。C 型平底刹车，操作简便。
- Steel-Zinc Plated Bracket — Premium Quality: Premium zinc-plated steel bracket offers excellent corrosion resistance and superior durability for demanding industrial and commercial environments. Precision construction ensures long service life. 优质镀锌钢支架：优质镀锌钢支架提供出色的防腐蚀性能和卓越的耐用性，适合工业和商业环境。精密结构确保长使用寿命。
- Top Plate Bolt-On Mounting: Standard 62×95 mm top plate with 45×75 mm bolt spacing and 8.5 mm bolt holes. 顶板螺栓固定安装：标准 62×95 mm 顶板，45×75 mm 螺栓间距，8.5 mm 安装孔。
- Medium Duty Load Capacity: Engineered for loads up to 130 kg per caster — ideal for industrial trolleys, warehouse carts, and production line equipment. 中型承载能力：每只承重达 130 kg——适合工业推车、仓库周转车和生产线设备。
- Consistent Quality: Strict QC processes. Each caster load-tested and rotation-tested before shipment. 稳定的品质：严格质量控制，出厂前逐一进行载荷和旋转测试。
- Wide Temperature Range: -20°C to +60°C. Reliable in cold storage, production floors, and ambient environments. 广泛的温度适应性：-20°C 至 +60°C。冷库、车间和常温环境均可靠。
四、详细技术参数 / Detailed Technical Properties
| Wheel Material | TPU (Thermoplastic Polyurethane), Black轮子材料：TPU（热塑性聚氨酯），黑色 |
|---|---|
| Wheel Hardness | 92 ± 3 Shore A轮子硬度：92 ± 3 邵氏硬度 A |
| Bracket Material | Steel-Zinc Plated支架材料：钢材，镀锌处理 |
| Bearing Type | Single Ball Bearing轴承类型：单滚珠轴承 |
| Brake Type | Total Lock — Wheel + Swivel Lock (Type C)刹车类型：全锁 — 轮子+万向锁定（Type C） |
| Swivel Angle | 360° (Type B & C) / Fixed (Type A)旋转角度：360°（B/C 型）/ 固定（A 型） |
| Operating Temperature | -20°C to +60°C (-4°F to +140°F)工作温度：-20°C 至 +60°C |
| Floor Protection | Excellent — Non-marking, Floor-friendly地板保护：优秀 — 无痕，保护地板 |
| Noise Level | Low — Quiet rolling噪音水平：低 — 安静滚动 |
| Finish | Steel-Zinc Plated (RoHS compliant)表面处理：钢材，镀锌处理（符合 RoHS 标准） |
Downloads
Applications
Suitable Industries & Applications
Industrial Trolleys & Carts
Warehouse Material Handling Equipment
Production Line Workstations
Medical Equipment Stands
Retail & Commercial Displays
Institutional & Laboratory Carts
Food Service & Catering Equipment
Assembly Line Dollies
Maintenance & Janitorial Equipment
Logistics & Distribution Carts
Heavy Furniture & Office Equipment
Light Industrial Platforms
Recommended Usage
Suitable
Smooth, hard floors (tile, concrete, vinyl, epoxy)
Suitable
Indoor environments — industrial, warehouse, production facilities
Suitable
Intermittent to moderate use
Suitable
Equipment under 400 kg total load (4 casters, safety margin included)
Not Recommended
Rough outdoor terrain or gravel surfaces
Not Recommended
Continuous heavy industrial impact applications
Not Recommended
High temperature environments exceeding standard operating temperature range
Not Recommended
Exposure to strong acids, concentrated solvents, or corrosive chemicals
FAQ
Q: What is the minimum order quantity? Can I order samples first?
A: Our standard MOQ is 100 pieces per model. Sample orders are welcome — you can order 1–2 pieces for testing before placing a bulk order.
Q: Can I customize the wheel color or bracket finish?
A: Yes! We offer full OEM/ODM customization. You can choose custom wheel colors, bracket finishes, and even branded packaging with your logo. Custom orders have their own MOQ — contact us for details.
Q: Will these casters scratch or leave marks on my floors?
A: Not at all. Our TPR wheels are non-marking and floor-friendly. They roll smoothly and quietly on tile, concrete, vinyl, and other hard surfaces without leaving scuffs or stains.
Q: These have a top plate — how do I install them on my equipment?
A: Simply bolt the top plate onto the equipment base using the pre-drilled mounting holes. Bolt spacing and hole diameters are clearly marked in the spec table above. Use M6–8 bolts (depending on model size) — no special tools needed.
Q: How do I know this caster can handle my equipment's weight?
A: Each caster supports up to 130 kg individually. For a 4-caster setup, the total safe working load is around 455 kg (safety margin included). Always distribute weight evenly across all casters. If you're unsure, our team can help you pick the right model.
Q: What is the typical lead time for orders?
A: Sample orders ship within 3–5 business days. Standard bulk orders typically take 15–25 days, depending on quantity. Custom orders may take a bit longer — we'll confirm the exact timeline when you order.
Company Profile
SUMATIC CASTER, established in 2020 in Zhongshan City, China, is a global provider of caster solutions, offering over 40 product series and more than 1,000 models. We specialize in high-performance casters for furniture, industrial, medical, and commercial applications, aiming to enhance equipment mobility and user experience.
Manufacturing Facility
Quality Control
Our Certificates
Exhibition
Our Services
Packaging & Shipping
Technical Specifications Table
Common Specifications: Wheel = PVC (Polyvinyl Chloride), Orange | Bracket = Steel-Black | Bearing = Dual Ball Bearings
Top Plate Mount Models
| Photo | Model | Size | Wheel Diameter | Wheel Width | Load Capacity | Overall Height | Plate Size | Bolt Spacing | Bolt Ø | Mounting Style |
|---|---|---|---|---|---|---|---|---|---|---|
|
SC0303-AB03G | 3.0" | 75 mm | 32 mm | 75 kg | 105 mm | 62×95 mm | 45×75 mm | 8.5 mm | Rigid Caster |
| SC0304-AB03G | 4.0" | 100 mm | 32 mm | 85 kg | 129 mm | 62×95 mm | 45×75 mm | 8.5 mm | Rigid Caster | |
| SC0305-AB03G | 5.0" | 125 mm | 32 mm | 100 kg | 153 mm | 62×95 mm | 45×75 mm | 8.5 mm | Rigid Caster | |
|
SC0303-BB03G | 3.0" | 75 mm | 32 mm | 75 kg | 105 mm | 62×95 mm | 45×75 mm | 8.5 mm | Swivel Plate |
| SC0304-BB03G | 4.0" | 100 mm | 32 mm | 85 kg | 129 mm | 62×95 mm | 45×75 mm | 8.5 mm | Swivel Plate | |
| SC0305-BB03G | 5.0" | 125 mm | 32 mm | 100 kg | 153 mm | 62×95 mm | 45×75 mm | 8.5 mm | Swivel Plate | |
|
|
SC0303-CB03G | 3.0" | 75 mm | 32 mm | 75 kg | 105 mm | 62×95 mm | 45×75 mm | 8.5 mm | Plate with Brake |
| SC0304-CB03G | 4.0" | 100 mm | 32 mm | 85 kg | 129 mm | 62×95 mm | 45×75 mm | 8.5 mm | Plate with Brake | |
| SC0305-CB03G | 5.0" | 125 mm | 32 mm | 100 kg | 153 mm | 62×95 mm | 45×75 mm | 8.5 mm | Plate with Brake |
Type A = Rigid Caster | Type B = Swivel Plate | Type C = Plate with Brake
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