The supermarket shopping cart adopts a design with two blade (double wheel) or three blade (three wheel) casters, which mainly affects its stability, flexibility, durability, and applicable scenarios. They have differences.
1. The advantages of two wheel casters (dual wheel brakes):
1). Simple structure and low cost
Low manufacturing and maintenance costs, suitable for supermarkets or small shopping carts with limited budgets.
2). Lightweight
Compared to three blade casters, the overall weight is lighter and the pushing is more effortless (suitable for light load scenarios).
3). Basic flexibility
It can meet the general demand for straight line pushing and is suitable for supermarket layouts with wide passages and fewer turns.
4). Applicable scenarios: small supermarkets, convenience stores, light-duty shopping carts, etc.
2. Advantages of three blade casters (three wheel brakes):
1). Stronger stability
The three wheels form a triangular support, reducing the risk of rollover, especially suitable for heavy loads, high-speed driving, or sloping
environments.
2). More flexible steering
An additional pivot point for smoother turns, suitable for supermarkets with narrow passages or frequent turns (such as large supermarkets and warehouse style supermarkets).
3). Higher durability.
Three wheel dispersed load-bearing reduces single wheel wear and extends service life (especially suitable for high flow and high-intensity use environments).
4). Braking is more stable.
Some three blade casters adopt multi wheel synchronous locking, which is more stable when parking and prevents sliding.
5). Applicable scenarios: large supermarkets, shopping centers, warehouse supermarkets, heavy-duty shopping carts, etc.
3. Conclusion:
If the supermarket has large space, heavy goods, and high foot traffic, priority should be given to using three blade casters (which are safer and more durable). If the budget is limited and the shopping cart is lightweight, two blade casters can also meet basic needs.
Additional suggestions:
The material of the casters (such as polyurethane, nylon coating) can also affect the quietness and wear resistance, and can be selected according to the floor type (tile/cement). Some high-end shopping carts use a combination of “2 directional wheels+2 universal wheels” to balance stability and flexibility. According to actual needs, three blade casters are usually better in terms of safety and durability, but two blade casters have more economic advantages.
Post time: Jul-07-2025
