7-Axis Waterproof Hydraulic Knee Joint - Titanium & Mg-Al

This seven-axis hydraulic joint comprehensively enhances prosthetic performance, bringing users a natural, safe and comfortable walking experience.
1. Original precision large-capacity rotary hydraulic damping cylinder, the core of the joint. It is a multi-stage stepless rotary hydraulic cylinder, and it is also scarce in China’s high-end field. It can achieve a wide range of precise damping adjustments, accurately matching the needs of the human knee joint in different scenarios such as walking, going up and down slopes, and turning. The damping range reaches 165 degrees, precisely achieving “gait following”, making the joint movement conform to the rhythm and trajectory of natural gait, resulting in smoother and more natural walking. Two-way damping adjustment combined with multi-oil passage design enables precise control of joint flexion and extension resistance. Ensures “gentle gait, speed adaptation, and stable support”, handling both slow and fast walking with ease.

2. Alternate going downstairs or downhill: In the supporting state, it provides a large damping bend of 8-15 degrees (load-bearing damping). This allows the prosthetic knee joint to bend at a reasonable small angle when going downstairs or downhill, just like the healthy side joint, It ensures stable support, restores natural gait, and enhances safety and smoothness when walking on complex terrain.

3. Seven-axis geometric lock: a mechanical locking mechanism. Locks the knee joint during the support phase to prevent accidental bending and falls. Automatically unlocks during walking; toe contact helps unlock and assists bending, achieving “stable support and smooth swing” and greatly enhancing walking safety.

4. Shock absorption: for comfort and limb protection.
At the end of the swing phase, the hydraulic damping increases as the bending angle decreases. It softly absorbs energy, avoids inertial impact, makes the movement at the end of lower leg swing gentle and controllable, and improves walking smoothness and comfort.
Shock absorption function: absorbs ground reaction force when the heel touches the ground，It cushions the impact on the residual limb, hip joints and spine, reducing discomfort and injury.

5. The joint weighs only 898g and is made of a combination of titanium alloy, Maximum load 125kg, sturdy yet lightweight, Structural height 186mm, system height 158mm, compact design.
6.Waterproof, resistant to seawater, fresh water and chlorinated water, suitable for daily bathing, swimming, rainy days and other scenarios.
This seven-axis hydraulic joint is optimized in multiple aspects such as support stability, natural gait and impact buffering, helping users integrate into daily activities more safely and comfortably.

Competitive Advantage
1.Maximum Knee FlexionAngle：165
2.Material：Titanium Alloy +Aviation-grade Magne-sium-aluminum Alloy +Beryllium Bronze
3.Waterproof Function：resistant to seawater,fresh water, and chlo-rinated water

Why choose us /service
1.Our company is a high-tech research and development enterprise, with professional experience of more than 20 years in the artificial limb；
2.orthoses production and sales. As a production-oriented enterprise integrating production research and development, we have our own precision casting factory, digital controlled lathe and machining center, separate high-precision assembly workshop, and our own research and development laboratory, providing a guarantee for the production of high-tech and high quality products;
3.In terms of product configuration, the product series is complete and the quality is stable.
4.28 utility model patents and 3 invention patents