Frame Materials
Steel/High-Strength Steel: Low cost with good load-bearing stability; certain high-carbon steel versions offer exceptional hardness and wear resistance, though they tend to be heavy and prone to rusting.
Aluminum Alloy:Lightweight, corrosion-resistant, and strong; heat-treated 6061 aerospace-grade aluminum alloy offers superior performance and is commonly used in mid-to-high-end models.
Carbon Fiber: Offers top-tier lightweight properties, high strength, and corrosion resistance; however, due to high costs and complex manufacturing processes, it is used only in a few high-end models.
Bodywork/Casing Materials
ABS Engineering Plastic: The most widely used material; it balances hardness and toughness, resists chemical corrosion, and is easy to mold, making it suitable for complex exterior designs.
PC Engineering Plastic: Offers superior impact and heat resistance; its high transparency makes it ideal for light covers and other translucent components.
Aluminum Alloy/Stainless Steel: Sturdy and durable; aluminum alloy helps reduce overall weight to extend range, while stainless steel offers strong corrosion resistance, making it suitable for harsh operating environments.
New Eco-friendly Materials: Some concept models utilize flax fiber composites, which have a much lower carbon footprint than traditional plastics and offer natural shock-absorbing properties.
Battery Materials
Lead-Acid Battery:Affordable but heavy; offers a deep-cycle lifespan of approximately 300 cycles, with capacity dropping significantly in low-temperature environments.
Lithium Battery: The standard for high-end models; ternary lithium batteries offer a cycle life of 800 cycles, while lithium iron phosphate (LFP) batteries can exceed 2,000 cycles, all while providing excellent weight efficiency.
