Analysis of Hand Truck Load Capacity
"Load capacity" refers to the maximum weight a hand truck can stably support during prolonged use. Standard household carts typically range from 50 to 100 kg, whereas industrial-grade carts can handle anywhere from 200 to 500 kg. The key factor is the material of the wheels-rubber wheels generally offer superior load-bearing performance compared to plastic ones, and steel frames are more durable than aluminum alloy frames.
Comparative Analysis of Actual Load Capacities
Converted into units of kN (kilonewtons): 1 kN ≈ 100 kg. Typical load capacities for common carts are as follows:
Folding Shopping Carts: 0.5–1 kN
Flatbed Dollys: 2–3 kN
Hydraulic Lift Trucks: 5–10 kN
In practical use, it is recommended to maintain a 20% safety margin; when transporting loads on inclines or ramps, the effective load capacity should be calculated at half of the rated maximum.
Overload Warnings and Usage Tips
The following signs indicate that the cart is approaching its load limit:
The push handle exhibits noticeable downward bending.
The wheels feel stiff or resistant when rotating.
Unusual noises (such as creaking or clicking) are heard at the joints.
Secrets to extending the cart's service life: Regularly lubricate the wheel axles, avoid loading the cart unevenly (to prevent lopsided weight distribution), and reduce speed when navigating rough or complex terrain.
