Vibration-damping casters achieve shock absorption through six methods: material selection, springs, damping, structural design, hardness gradients, and fluid filling. The core objective of all these methods is “absorbing impact, delaying release, and suppressing resonance.”.
1. Elastic material
The wheel surface is made of rubber or polyurethane, with elastic deformation to absorb energy; the formulation can be adjusted to balance vibration damping and load capacity.
2. Spring mechanism
The built-in compression spring stores impact energy and releases it gradually; the multi-stage springs operate in segments based on load magnitude, enhancing linearity.
3. Damping
High-damping rubber converts vibrational energy into heat; hydraulic dampers utilize throttling resistance to provide stable damping across the entire frequency range.
4. Structure
Independent suspension allows single wheels to float with the terrain, maintaining close contact; multi-wheel distribution reduces point loads and minimizes impact peaks.
5. Hardness Gradient
The outer surface is soft while the inner layer is hard, or multiple layers with varying hardness are used to achieve “soft energy absorption-hard load-bearing,” thereby amplifying the deformation zone while maintaining load-bearing capacity.
6. Fluid Filling
Inflated tires rely on air pressure to deform and absorb shocks, while enclosed liquid chambers utilize viscous flow to dissipate energy, making them suitable for high-silence or high-frequency vibration scenarios.
By integrating the above measures, shock-absorbing casters can progressively attenuate ground vibrations along the transmission path, reducing the acceleration and resonance risks borne by the equipment. This extends service life while maintaining operational precision.
Post time: Oct-28-2025
