Q1: How to choose casters according to the load-bearing needs?

It is recommended to calculate the weight of a single wheel by "total weight of equipment ÷number of casters× 1.5 (safety factor)". For example, if a 500kg machine is equipped with 4 casters, you need to choose a model with a load capacity of ≥ 187.5kg/piece (500÷4×1.5). Nylon iron-clad core wheels are preferred for heavy-duty scenarios, and TPU silent wheels are optional for light-duty equipment.

Q2: What are the applicable scenarios of casters of different materials?

Rubber wheels: anti-slip and shock-resistant, suitable for medical/laboratory (noise<50dB)

Polyurethane wheels: oil-resistant and anti-aging, suitable for warehousing and logistics (life span of 30,000 km)

Cast iron wheels: ultra-high load-bearing (single wheel 2 tons +), but need to avoid humid environment

Q3: How to match steering wheels with directional wheels?
The "2 steering + 2 directional" combination is recommended, and the steering wheels should be installed on the short side of the equipment. The all-steering solution is suitable for confined spaces, but requires the addition of a braking system to prevent drifting.