A 200mm caster is a wheel with a nominal diameter of 200 millimetres, but matching the wheel size alone does not confirm that it will fit or work safely with an aluminum scaffold. Buyers should verify the mounting interface, load capacity, brake arrangement, wheel material, and the scaffold manufacturer’s requirements before ordering. In this guide, we explain how to compare these points and what information to send a supplier so you can assess compatibility before purchase. At Tengchang, we supply ladder and scaffolding parts and can review product requirements with B2B buyers.
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This guide is intended for scaffold manufacturers, distributors, rental companies, procurement teams, and project buyers sourcing replacement or original-equipment casters. It is especially relevant when a buyer has specified a 200mm caster but does not yet have a confirmed model or interface drawing. The selection process can also help teams compare quotations that appear similar but may differ in mounting design or load documentation. For safety-critical applications, buyers should follow the scaffold manufacturer’s instructions and applicable local requirements.
A scaffold caster combines a wheel with a housing and a mounting connection that attaches to the scaffold base. Many caster assemblies also include a swivel mechanism and a brake, though the exact configuration depends on the selected product. “200mm” generally describes the nominal wheel diameter, not the full height of the caster assembly or the size of its mounting stem. Confirm these dimensions from the supplier’s drawing rather than inferring them from the wheel size.
Scaffold casters may use a stem connection or a mounting plate, and these options are not interchangeable unless the scaffold design supports both. Wheels may be made from different materials, such as polyurethane, rubber, or nylon, with performance depending on the specific formulation and construction. A swivel caster can help with repositioning, while a fixed caster guides travel in a set direction. Brake designs also vary, so check whether the selected model locks the wheel, the swivel, or both.
Start with the surface on which the scaffold will be used. Smooth indoor floors, uneven concrete, and surfaces with debris can place different demands on wheel material, rolling effort, and contact area. Consider whether the scaffold will be moved frequently or positioned for extended periods, and whether floor marking or noise is a concern. These details help narrow the wheel and brake options, but they do not replace a capacity and compatibility check.
Do not select a caster by dividing the scaffold’s expected load by the number of wheels and assuming that each wheel will always carry an equal share. Load distribution can vary with the scaffold setup, floor conditions, and how the structure is used. Ask the scaffold manufacturer or a qualified technical contact to confirm the required caster rating for the complete assembly. The supplier should provide a rated capacity for the specific caster model and explain the basis of that rating.
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Also confirm that the caster’s overall height and mounting geometry suit the scaffold base. A different assembly height can change the working height or leveling range of the structure. If the scaffold relies on adjustable components, check how the caster interacts with those parts and whether the chosen arrangement is permitted by the scaffold design. Do not modify a frame or connection to make a mismatched caster fit.
| What to verify | Questions to ask | Why it matters |
|---|---|---|
| Wheel and assembly dimensions | Is the wheel diameter nominally 200mm, and what is the overall caster height? | The wheel diameter alone does not define the installed height or clearances. |
| Mounting interface | Is the connection a stem or plate, and do its dimensions match the scaffold drawing? | A mismatch may prevent secure installation or require an unapproved modification. |
| Load rating | What is the rated capacity for this exact caster model, and what conditions apply? | Capacity must be evaluated for the complete scaffold use case, not guessed from wheel size. |
| Brake and swivel | Which parts lock, and is the configuration consistent with the scaffold requirements? | Brake behavior affects positioning and should be understood before use. |
| Wheel material and floor | Is the proposed material suitable for the surface and operating environment? | Floor conditions influence rolling, wear, and potential marking. |
The price of a 200mm caster can depend on its mounting design, wheel material, brake configuration, rated capacity, and order quantity. A low unit price may not represent an equivalent product if the interface, materials, or documentation differ. Ask suppliers to quote the same specification so you can make a meaningful comparison. If a quotation proposes an alternative, request its drawing and a clear explanation of the differences.
Minimum order quantity and lead time are supplier- and configuration-specific, so confirm both for the exact model and destination. Custom dimensions or non-standard features may affect production planning, but the actual impact should be confirmed with the supplier rather than assumed. For repeat orders, request the model reference and revision details to reduce the risk of receiving a different configuration later. Include packaging and shipping requirements in the inquiry if they affect your purchasing plan.
A capable supplier should be able to identify the quoted model, provide relevant dimensions, and explain the mounting and brake configuration. Ask whether the supplier can review your drawing or measurements and clarify any differences between your requirement and the proposed product. Check that the quotation identifies the requested wheel diameter, connection type, material, and capacity information rather than relying on a generic product description. Clear documentation helps procurement, engineering, and receiving teams check that they are discussing the same item.
When contacting Tengchang, share your target quantity, destination, required 200mm wheel diameter, scaffold interface details, and application conditions. If you have a drawing, photographs, or a sample reference, include them with the inquiry. We can review the information and discuss suitable ladder and scaffolding parts based on the requirements you provide. Final compatibility should be confirmed against the scaffold manufacturer’s design and the caster’s documented specifications.
A suitable 200mm caster for an aluminum scaffold is not defined by wheel diameter alone. Confirm the mounting connection and overall dimensions, verify the model-specific capacity with the responsible technical party, and match wheel and brake features to the floor and operating conditions. These checks help buyers compare products on equivalent terms and reduce the chance of ordering an unsuitable replacement. Before requesting a quotation, prepare the scaffold details, measurements in millimetres, required quantity, and destination, then ask the supplier to confirm the proposed model against that information.
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