Knowledge

In construction and renovation projects, mobile scaffolding is an indispensable tool.
However, when selecting scaffolding casters, many procurement managers tend to
focus solely on the wheel diameter, completely overlooking the most critical factor—
"the combination of wheel materials."
Whether enduring long-term stationary loads or navigating uneven terrain,
a scaffolding caster's material hardness and load capacity serve as the core metrics
for evaluating equipment durability and overall job site safety.
With extensive R&D experience, HAION Caster presents this guide
to help you explore the four major scaffolding caster material combinations.
Discover how the strategic pairing of the "Outer wheel " and the "Wheel core"
ultimately determines a wheel's hardness and load performance.
Why Do Scaffolding Casters Separate the "Outer wheel" from the "Wheel core"?
In real-world applications, a material that is too hard can easily damage floors during rolling,
while a material that is too soft will cause the wheel to flat-spot and deform.
To solve this, HAION Caster scaffolding wheels utilize a scientifically designed "wheel plus core" configuration:
  ◆Wheel Core: Responsible for structural stability.
     It determines how many metric tons of weight the wheel can bear
     without deforming or cracking.
  ◆Outer wheel: Responsible for contact surface hardness.
     It determines how effortlessly the caster rolls, whether it will scratch floors,
     and its shock-absorption capability.
4 Core Material Pairings for HAION Caster Scaffolding Wheels
    1. Solid Nylon Wheels
        ◆Hardness Performance: Offers exceptionally high compressive hardness,
          ensuring the structure remains completely undeformed under long-term pressure.
        ◆Load Performance: Due to its extreme hardness andminimal contact area with the ground,
          rolling friction drops close to zero when handling medium-to-heavy loads,
          making it the most effortless choice to push and move.
    2. PU + PP (Polyurethane on Polypropylene)
        ◆Hardness Performance: HAION Caster outer tread is engineered from
          highly resilient PU (polyurethane), ensuring excellent wear resistance and
          smooth rolling performance.
        ◆Load Capacity: The inner core features lightweight PP, optimized primarily for daily,
          medium-duty loads. While its upper load limit is lower than that of nylon wheels,
          it is fully capable of handling most conventional projects.
    3. PU + Nylon (Polyurethane on Nylon)
        ◆Hardness Performance: The outer layer is similarly coated with HAION Caster's
           standard high-hardness PU, delivering outstanding shock absorption and
           floor protection during pushing.
        ◆Load Capacity: The inner core is made of high-hardness nylon.
          Because nylon possesses a far superior structural rigidity compared to PP,
          this upgraded composite wheel can handle much heavier medium-to-heavy loads
          than the PU+PP alternative.
    4. PU + Cast Iron
        ◆Hardness & Load Performance: The hardness and load capacity of the HAION Caster wheel
           are entirely driven by its high-strength, solid cast iron core.
           This formidable metallic hardness provides the most reliable structural support,
           guaranteeing absolutely zero collapsing or deformation under massive, extreme weights.

HAION Caster scaffolding wheels conform to rigorous international safety
and load-bearing standards, from the casting of the wheel core to the compounding
technology of the outer wheel. Choosing the right material combination
maximizes construction efficiency, serving as an invisible shield that
guarantees smooth project operations.