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Description
Pressed Steel Fixed Castors with Red Thermoplastic on White Nylon Wheel
Available in four sizes: 80mm – 100mm – 125mm – 150mm | Load capacity: 90 kg – 180 kg per castor
These pressed steel fixed castors are engineered for demanding industrial and commercial environments where directional stability is essential. Each unit features a red thermoplastic tread bonded to a white nylon wheel centre, mounted on a pressed steel plate with a ball journal bearing for smooth, low-resistance rolling. Supplied in four wheel diameter options — 80 mm, 100 mm, 125 mm, and 150 mm — with load ratings from 90 kg up to 180 kg per castor, they are suited to trolleys, shelving, workbenches, storage racks, and light-to-medium industrial equipment across warehouse, retail, workshop, and institutional settings.
Comparison — All Options
| Wheel Diameter | Load Capacity (per castor) | Max Load (4 castors) | Total Height | Plate Size | Plate Hole Diameter | Wheel Material |
|---|---|---|---|---|---|---|
| 80 mm | 90 kg | 270 kg | 106 mm | 100 mm x 85 mm | 10 mm | Red Thermoplastic on White Nylon |
| 100 mm | 110 kg | 330 kg | 126 mm | 100 mm x 85 mm | 10 mm | Red Thermoplastic on White Nylon |
| 125 mm | 160 kg | 480 kg | 152 mm | 100 mm x 85 mm | 10 mm | Red Thermoplastic on White Nylon |
| 150 mm | 180 kg | 540 kg | 181 mm | 100 mm x 85 mm | 10 mm | Red Thermoplastic on White Nylon |
* Maximum load figures are calculated at 75% of the combined rated capacity of four castors and assume an evenly distributed load on a flat, level surface.
Detailed Specifications & Applications by Option
80 mm Wheel — 90 kg Load
Compact fixed castor for light-duty applications
Wheel Diameter80 mm
Wheel Width35 mm
Wheel MaterialRed Thermoplastic on White Nylon
Wheel ColourRed tread / White centre
Bearing TypeBall Journal
Load Capacity (per castor)90 kg
Max Load (4 castors)270 kg
Total Height106 mm
Plate Size100 mm x 85 mm
Plate Hole Centres60 mm / 80 mm
Plate Hole Diameter10 mm
Plate MaterialPressed Steel
Fixing TypeTop Plate (bolt-on)
Typical Applications
- Light-duty workshop trolleys and carts
- Retail display units and gondola shelving
- Office furniture and mobile storage pedestals
- Small equipment stands and instrument trolleys
- Catering and hospitality service trolleys
100 mm Wheel — 110 kg Load
Medium fixed castor for general-purpose use
Wheel Diameter100 mm
Wheel Width35 mm
Wheel MaterialRed Thermoplastic on White Nylon
Wheel ColourRed tread / White centre
Bearing TypeBall Journal
Load Capacity (per castor)110 kg
Max Load (4 castors)330 kg
Total Height126 mm
Plate Size100 mm x 85 mm
Plate Hole Centres60 mm / 80 mm
Plate Hole Diameter10 mm
Plate MaterialPressed Steel
Fixing TypeTop Plate (bolt-on)
Typical Applications
- Warehouse picking trolleys and order carts
- Industrial shelving units and racking bases
- Workshop benches and tool storage cabinets
- Medical and laboratory equipment trolleys
- School and institutional furniture
125 mm Wheel — 160 kg Load
Heavy-duty fixed castor for demanding environments
Wheel Diameter125 mm
Wheel Width38 mm
Wheel MaterialRed Thermoplastic on White Nylon
Wheel ColourRed tread / White centre
Bearing TypeBall Journal
Load Capacity (per castor)160 kg
Max Load (4 castors)480 kg
Total Height152 mm
Plate Size100 mm x 85 mm
Plate Hole Centres60 mm / 80 mm
Plate Hole Diameter10 mm
Plate MaterialPressed Steel
Fixing TypeTop Plate (bolt-on)
Typical Applications
- Heavy warehouse trolleys and platform trucks
- Industrial machinery bases and equipment frames
- Packing and dispatch benches
- Retail stockroom and back-of-house carts
- Catering bulk storage and preparation trolleys
150 mm Wheel — 180 kg Load
Extra heavy-duty fixed castor for maximum capacity
Wheel Diameter150 mm
Wheel Width40 mm
Wheel MaterialRed Thermoplastic on White Nylon
Wheel ColourRed tread / White centre
Bearing TypeBall Journal
Load Capacity (per castor)180 kg
Max Load (4 castors)540 kg
Total Height181 mm
Plate Size100 mm x 85 mm
Plate Hole Centres60 mm / 80 mm
Plate Hole Diameter10 mm
Plate MaterialPressed Steel
Fixing TypeTop Plate (bolt-on)
Typical Applications
- Heavy-load industrial trolleys and roll cages
- Manufacturing and assembly line equipment
- Large storage racking and shelving systems
- Logistics and distribution centre handling equipment
- Institutional laundry and linen trolleys
General Construction & Materials
| Feature | Detail |
|---|---|
| Castor Type | Fixed (non-swivel) — directional stability, no rotation |
| Plate Material | Pressed steel — robust, weld-ready construction |
| Plate Dimensions | 100 mm x 85 mm (all sizes) |
| Plate Hole Centres | 60 mm and 80 mm (dual-pitch, all sizes) |
| Plate Hole Diameter | 10 mm (all sizes) |
| Fixing Method | Top plate bolt-on — four-hole fixing pattern |
| Wheel Tread Material | Red thermoplastic rubber — resilient, floor-friendly |
| Wheel Centre Material | White nylon — lightweight, high-strength core |
| Bearing Type | Ball journal bearing — smooth rolling, low starting resistance |
| Floor Suitability | Smooth concrete, resin, vinyl, tile, and hardwood floors |
| Operating Temperature | -20°C to +60°C |
Frequently Asked Questions
What is the difference between a fixed castor and a swivel castor?
A fixed castor has no swivel head — the wheel is mounted in a rigid, straight-line orientation. This means the equipment can only be pushed or pulled in a straight line, making fixed castors ideal for the rear positions on trolleys and carts where directional stability is required. Swivel castors, by contrast, rotate 360° and are typically used at the front to allow steering. For most trolley configurations, a combination of two fixed and two swivel castors is recommended.
How do I choose the correct wheel diameter for my application?
Larger wheel diameters roll more easily over uneven surfaces and require less effort to push, making them better suited to heavier loads or longer travel distances. The 80 mm option is ideal for compact, light-duty equipment; the 100 mm suits general warehouse and workshop use; the 125 mm handles heavier trolleys and benches; and the 150 mm is recommended for maximum-capacity industrial applications. Always select a size where the combined load rating of all four castors exceeds the total weight of the loaded equipment by a comfortable margin.
Are these castors suitable for use on smooth floors such as vinyl, resin, or hardwood?
Yes. The red thermoplastic tread is designed to provide good grip and floor protection on smooth, hard surfaces including vinyl, resin-coated concrete, ceramic tile, and hardwood. The tread absorbs minor vibration and reduces noise during movement, making these castors well suited to retail, office, and light industrial environments where floor protection is a consideration.
What fixings are required to fit these castors, and are they compatible with standard bolt patterns?
These castors are fitted using the top plate bolt-on method. The plate measures 100 mm x 85 mm with hole centres of 60 mm and 80 mm (dual-pitch) and a hole diameter of 10 mm, which is compatible with a wide range of standard trolley and equipment frames. Four M10 bolts, washers, and nuts are required for each castor (not supplied). Always ensure the fixing bolts are tightened securely and check periodically during use.
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