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3.0-8.0 Inch Medium Grey Rubber Top Plate Caster Wheels (80-300kg)
Step 1: Mounting Style
Rigid
✓
Swivel Plate
✓
Threaded Stem
✓
Bolt Hole
✓
Swivel Stem
✓
Stem Ring
✓
Expanding Stem
✓
Others
✓
Step 2: Wheel Diameter
4“(100mm)
5“(125mm)
6“(150mm)
8“(200mm)
8 Core Advantages of Heavy Duty Natural Rubber Casters — Dark Grey
- Roller Bearing Swivel: Precision roller bearing design ensures smooth, effortless rotation under heavy loads. Reduces push force and improves maneuverability.
- Premium Natural Rubber Wheel: High-quality Natural Rubber tread for heavy-duty applications. Dark Grey finish. 50 mm wide tread for superior stability under load. Quiet rolling with good floor protection.
- Total Lock Brake (Type C): Simultaneously locks both wheel rotation and swivel movement. Keeps equipment securely in place under heavy loads. Type C plate brake — easy foot-pedal engagement.
- 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-welded construction ensures long service life under heavy loads.
- Top Plate Bolt-On Mounting: Standard 105×80 to 135×110 mm top plate with pre-drilled mounting holes. Clear bolt spacing marked for quick, secure installation.
- Heavy Duty Load Capacity: Engineered for loads up to 300 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 | Natural Rubber, Dark Grey |
|---|---|
| Wheel Hardness | 80 ± 5 Shore A |
| Bracket Material | Steel-Zinc Plated |
| Bearing Type | Roller Bearing |
| Brake Type | Total Lock — Wheel + Swivel Lock (Type C) |
| Swivel Angle | 360° (Type B & C) / Fixed (Type A) |
| Operating Temp | -20°C ~ +60°C |
| Floor Protection | Varies by tread material |
| Noise Level | Moderate — Heavy duty operation |
| Surface Finish | Steel-Zinc Plated (RoHS compliant) |
Downloads
Applications
Suitable Industries & Applications
Industrial Trolleys & Platform Trucks
Warehouse Material Handling
Manufacturing & Assembly Lines
Automotive Workshop Equipment
Logistics & Distribution Centers
Heavy Equipment Transport
Construction & Building Sites
Maintenance & Service Carts
Steel & Metal Fabrication
Chemical & Processing Industries
Aerospace Ground Equipment
Marine & Port Operations
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 540 kg total load (4 casters, safety margin included)
Not Recommended
Rough outdoor terrain or gravel surfaces
Not Recommended
Continuous shock loading or impact applications
Not Recommended
Environments exceeding Ultra-Quiet operating temperature
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 Natural Rubber 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 M8–10 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 300 kg individually. For a 4-caster setup, the total safe working load is around 1050 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 = Natural Rubber, Black | Bracket = Steel-Zinc Plated | Bearing = Dual Ball Bearings
Plate Mount Models
| Photo | Model | Size | Wheel Diameter | Wheel Width | Load Capacity | Overall Height | Plate Size | Bolt Spacing | Bolt Ø | Mounting Style |
|---|---|---|---|---|---|---|---|---|---|---|
|
SC1204-A44 | 4.0" | 100 mm | 40 mm | 120 kg | 128 mm | 105×80 mm | 80×60 mm | 11 mm | Rigid Caster |
| SC1205-A44 | 5.0" | 125 mm | 40 mm | 150 kg | 155 mm | 105×80 mm | 80×60 mm | 11 mm | Rigid Caster | |
| SC1206-A44 | 6.0" | 150 mm | 50 mm | 250 kg | 190 mm | 135×110 mm | 105×80 mm | 13.5 mm | Rigid Caster | |
| SC1208-A44 | 8.0" | 200 mm | 50 mm | 300 kg | 235 mm | 135×110 mm | 105×80 mm | 13.5 mm | Rigid Caster | |
|
SC1204-B44 | 4.0" | 100 mm | 40 mm | 120 kg | 128 mm | 105×80 mm | 80×60 mm | 11 mm | Swivel Plate |
| SC1205-B44 | 5.0" | 125 mm | 40 mm | 150 kg | 155 mm | 105×80 mm | 80×60 mm | 11 mm | Swivel Plate | |
| SC1206-B44 | 6.0" | 150 mm | 50 mm | 250 kg | 190 mm | 135×110 mm | 105×80 mm | 13.5 mm | Swivel Plate | |
| SC1208-B44 | 8.0" | 200 mm | 50 mm | 300 kg | 235 mm | 135×110 mm | 105×80 mm | 13.5 mm | Swivel Plate | |
|
|
SC1204-C44 | 4.0" | 100 mm | 40 mm | 120 kg | 128 mm | 105×80 mm | 80×60 mm | 11 mm | Plate with Brake |
| SC1205-C44 | 5.0" | 125 mm | 40 mm | 150 kg | 155 mm | 105×80 mm | 80×60 mm | 11 mm | Plate with Brake | |
| SC1206-C44 | 6.0" | 150 mm | 50 mm | 250 kg | 190 mm | 135×110 mm | 105×80 mm | 13.5 mm | Plate with Brake | |
| SC1208-C44 | 8.0" | 200 mm | 50 mm | 300 kg | 235 mm | 135×110 mm | 105×80 mm | 13.5 mm | Plate with Brake |
Type A = Rigid Caster | Type B = Swivel Plate | Type C = Plate with Brake
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