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Floors & use
Cast iron / steel wheel
- Carries very heavy loads
- Tolerates heat and sharp debris
- Suits concrete, steel and foundry floors
- Noisy
- Will mark or damage finished floors
Details & FAQs
This 100mm pressed steel swivel castor with directional brake is a precision-engineered heavy-duty wheel unit designed for demanding industrial, warehouse, and workshop environments. Fitted with a grey cast iron wheel and mounted on a robust 4-hole top plate, it delivers reliable load-bearing performance up to 140kg per castor. The integrated directional brake locks the wheel in place to prevent unintended movement — making it the preferred choice for trolleys, mobile workbenches, industrial carts, and factory floor equipment where controlled mobility and positional stability are essential.
Key Features
Technical Specifications
Wheel
| Wheel Diameter | 100 mm |
| Tread Width | 30 mm |
| Wheel Material | Grey Cast Iron |
| Wheel Colour | Grey |
| Tread Hardness | 85 Shore A |
| Bearing Type | Ball Journal |
Top Plate
| Plate Type | 4-Hole Top Plate |
| Plate Length | 100 mm |
| Plate Width | 85 mm |
| Hole Centres (Length) | 80 mm |
| Hole Centres (Width) | 60 mm |
| Hole Diameter | 10 mm |
| Plate Material | Pressed Steel |
| Plate Finish | Zinc Plated |
Overall Castor
| Castor Type | Top Plate Swivel Castor with Directional Brake |
| Total Height | 127 mm |
| Max Load Capacity | 140 kg per castor |
| Max Load (Set of 4) | 420 kg |
Typical Applications
This castor is well-suited to a wide range of professional and industrial applications where load security and controlled movement are priorities:
| Warehouse trolleys and picking carts |
| Mobile workbenches and workshop equipment |
| Industrial platform trucks and dollies |
| Retail display units and stockroom shelving |
| Manufacturing and assembly line carts |
| Hospitality and catering trolleys |
Frequently Asked Questions
What is the maximum load this castor can support?
Each castor is rated to a maximum load of 140 kg. When used as a set of four castors, the combined rated capacity is 420 kg. It is recommended to apply a safety margin and not operate consistently at the maximum rated load.
How does the directional brake work?
The directional brake is a foot-operated mechanism that locks the wheel to prevent it from rolling. It does not lock the swivel head, so the castor can still rotate 360° when the brake is engaged. This is ideal for situations where you need to stop a trolley from rolling while still being able to reposition it.
What surfaces is the grey cast iron wheel suitable for?
Grey cast iron wheels perform best on hard, smooth, or semi-rough surfaces such as concrete, tarmac, and sealed warehouse floors. They are not recommended for use on soft flooring, delicate surfaces, or environments where floor protection is a priority, as the hard wheel material may cause surface marking.
How is this castor mounted and what fixings are required?
This castor uses a 4-hole top plate for bolt-through mounting. The plate measures 100 mm x 85 mm with hole centres of 80 mm (length) x 60 mm (width) and a hole diameter of 10 mm. Standard M10 bolts are typically used. Ensure the mounting surface is flat, structurally sound, and capable of supporting the intended load.
* Load capacity ratings are provided as a guide. Always assess the full application load, floor conditions, and operating environment before selecting a castor. For technical assistance or bulk enquiries, please contact our team.
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