Plate Castors

Plate Castors

Plate castors mount to equipment using a flat, bolt-through plate — the simplest and most common castor mount, suitable for a vast range of mobile equipment, trolleys, workshop fixtures, and industrial fitouts. The plate provides a wide bolting footprint that spreads load across the supporting structure, making plate castors the default choice for steel-framed trolleys, wood-framed cabinets, and most industrial mobile equipment. AIMS Industrial stocks plate castors across the size, capacity, and wheel material range.

The variations we stock

• Swivel plate castors — rotate 360° for steering, the everyday choice for mobility
• Fixed (rigid) plate castors — non-swivelling for tracking in a straight line, used on the rear of trolleys
• Locking swivel castors — swivel-and-wheel lock for parking the equipment in place
• Brake-only castors — wheel-locking brake without swivel lock
• Heavy-duty plate castors — reinforced bracket and ball-bearing pivot for higher load capacities

Wheel materials — match to floor and load

• Polyurethane (PU) — quiet, easy on smooth concrete, doesn't mark floors; the workshop favourite
• Solid rubber — quiet, suits rough or uneven surfaces, good shock absorption
• Nylon — hard, fast, handles oil and chemicals; transmits noise and shock
• Cast iron — for heavy loads on smooth, hard floors; very durable but loud
• Pneumatic (air-filled) — for outdoor or rough-surface use, very smooth ride
• Phenolic — heat-resistant, suits foundry and high-temperature environments

Sizing — capacity and wheel diameter

Plate castor capacity is rated per castor; total trolley capacity is typically the lowest castor rating × number of castors, with appropriate safety factor. Larger wheels roll easier over uneven surfaces and small obstructions but raise the load height. For most workshop applications, 100-150mm wheel diameter with 100-200kg per castor is the everyday range. For heavy industrial use, 200mm+ wheels with 500kg+ per castor are standard.

Plate dimensions

Plate sizes vary by manufacturer and capacity — typical workshop plates run 100×85mm to 140×110mm. Check the bolt pattern matches your equipment's mounting holes before ordering, or be prepared to drill new holes. Replacement castors should match the existing plate or close to it; large plate-pattern changes mean reworking the equipment frame.

Brands stocked at AIMS

EasyRoll and Colson cover the plate castor range across the everyday workshop sizes and capacities. Both are supported by replacement wheels and parts so castors can be repaired rather than replaced when only the wheel has worn.

Service and replacement

Castor failures usually trace to the wheel or the bearing — the bracket itself rarely wears out under normal use. Replacement wheels and bearings are stocked for the brands we sell. When a castor's bracket is damaged or the swivel mechanism is failing, replace the complete castor; bracket repair is rarely economical.

Need help with castor selection, capacity, or replacement? contact our team — we'll match by load, surface, and existing mounting pattern.