Four Axis Knee Joint
Four Axis Knee Joint Model 4F20
The 4F20 four-axis prosthetic knee joint is a reliable mechanical knee component designed for lower limb amputees, available in two weight versions: 690g stainless steel model and lightweight 470g titanium alloy model to match different usage demands.
Core Parameters
- Weight Capacity: Max bearing load up to 150kg, stable enough for daily walking and moderate activity scenarios.
- Raw Material Options: SS (Stainless Steel) / TI (Titanium Alloy). Stainless steel version features outstanding corrosion resistance and cost performance; titanium alloy variant greatly reduces overall prosthetic weight, bringing lighter wearing experience for users.
- Flexion Angle: 120° knee bending range, fully supports squatting, sitting and normal daily bending movements, restoring natural leg motion.
- Product Weight: 690g (SS version) / 470g (TI version)
- Unit Price: USD 40.0 for stainless steel model, USD 170.0 for titanium alloy model
Product Advantages
Adopts classic four-axis linkage mechanical structure, which effectively simulates the natural rotation track of human knee joint, offering smooth gait and stable support during standing and walking. Solid metal structure ensures long service life, low failure rate and easy maintenance. Widely applicable for adult below-knee & above-knee prosthetics, suitable for rehabilitation hospitals, prosthetic fitting centers and medical device distributors globally.
