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3.0-5.0 Inch Medium Maroon TPU Threaded Stem 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)
8 Core Advantages of Medium Duty TPU Casters — Maroon, Threaded Stem
- Single Ball Bearing Swivel: Precision ball raceway design ensures smooth, effortless 360° rotation even under medium-duty loads. Reduces push force and improves maneuverability.
- Premium TPU Wheel — Medium Duty: High-quality TPU tread for medium-duty applications — Maroon finish. Non-marking with reliable rolling performance. 32 mm wide tread for improved stability under load.
- Total Lock Brake (Type E): Simultaneously locks both wheel rotation and swivel movement. Keeps equipment securely in place under load. Type E stem brake — easy to engage.
- 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.
- Threaded Stem Quick Installation: Standard metric threaded stem M10×30/M12×30. Screw directly into pre-installed nuts for quick, secure installation.
- Medium Duty Load Capacity: Engineered for loads up to 130 kg per caster — ideal for industrial trolleys, warehouse carts, and production line equipment.
- Consistent Quality: Strict QC processes. Each caster load-tested and rotation-tested before shipment.
- Wide Temperature Range: -20°C to +60°C. Reliable in cold storage, production floors, and ambient environments.
Additional Information
| Wheel Material | TPU (Thermoplastic Polyurethane), Maroon |
|---|---|
| Wheel Hardness | 92 ± 3 Shore A |
| Bracket Material | Steel-Zinc Plated |
| Bearing Type | Single Ball Bearing |
| Brake Type | Total Lock — Wheel + Swivel Lock (Type E) |
| Swivel Angle | 360° |
| Operating Temp | -20°C ~ +60°C (-4°F ~ +140°F) |
| Floor Protection | Excellent — Non-marking, Floor-friendly |
| Noise Level | Low — Quiet rolling |
| Surface Finish | Steel-Zinc Plated (RoHS compliant) |
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 threaded stem — how do I install them on my equipment?
A: Simply screw the threaded stem into a pre-installed nut or mounting hole on your equipment. We offer stem sizes (M10x30/M12x30) to fit different mounting holes. No special tools needed — just twist to secure.
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
Thread Stem Models
| Photo | Model | Size | Wheel Diameter | Wheel Width | Load Capacity | Overall Height | Stem Spec | Mounting Type |
|---|---|---|---|---|---|---|---|---|
|
SC0303-DB03G | 3.0" | 75 mm | 32 mm | 75 kg | 105 mm | M10×30 / M12×30 mm | Thread Stem |
| SC0304-DB03G | 4.0" | 100 mm | 32 mm | 85 kg | 129 mm | M10×30 / M12×30 mm | Thread Stem | |
| SC0305-DB03G | 5.0" | 125 mm | 32 mm | 100 kg | 153 mm | M10×30 / M12×30 mm | Thread Stem | |
|
|
SC0303-EB03G | 3.0" | 75 mm | 32 mm | 75 kg | 105 mm | M10×30 / M12×30 mm | Thread Stem with Brake |
| SC0304-EB03G | 4.0" | 100 mm | 32 mm | 85 kg | 129 mm | M10×30 / M12×30 mm | Thread Stem with Brake | |
| SC0305-EB03G | 5.0" | 125 mm | 32 mm | 100 kg | 153 mm | M10×30 / M12×30 mm | Thread Stem with Brake |
Type D = Thread Stem (Swivel) | Type E = Thread Stem with Brake (Swivel + Brake)
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