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ORION 3 Bionic Knee Joint Fully Intelligent Bionic Knee Joint Full Carbon Fiber Material Prosthetic Knee Joint
ORION 3 Bionic Knee Joint
Item No.:ORION 3
Load Weight: 125 Kg
Component weight: 1.5 kg
Structure height: 250 mm
Control unit: MPK Hydraulic/Pneumatic -
Lightweight Aluminium Single Axis Hydraulic Knee Joint Waterproof Swing and Support Control for Clinic Use
Single Axis Hydraulic Knee Joint With Swingand Support Control Prosthetic Leg Parts AK Artifical Limb Waterproof Buffer
Product Name: Single Axis Hydraulic Knee Joint With Swingand Support Control
Item: 3FH-SAH80
Material: Titanium Alloy
Load Weight: 120kg
Knee Flexion Range: 120° -
Aluminium Artificial Prosthetic Hydraulic Knee Implant Orthotics Knee Brace for Leg Rehabilitation Equipment
Hydraulic Knee Joint
Item No.: 3F35
Material：TI/AL
Weight：880 g
Load Weight: 150 Kg
Knee Flexion Range: 135°
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Advanced Waterproof Hydraulic Damping Cylinder with Seven-Axis Control Knee Joint
Seven-axis hydraulic knee joint
Item No.: 3FH-7ARH
Material：Titanium alloy + magnesium aluminum alloy
Load Weight：125kg
Knee Flexion Range: 165°
Waterproof function: resistant to seawater, freshwater and chlorinated -
High Quality Durable Aluminum Four-Bar Pneumatic Knee Joint Steel Fixer Orthotics for Amputees Prosthetic Knee for Comfort
Product name: Four Bar Pneumatic Knee Joint
Item No.: 3F25P
MOQ: 1pcs
Material: Gel
Weight: 850g
Load Weight: 100 kg
Knee Flexion Range: 135° -
High Quality Five-Link Geometric Lock Pneumatic Knee Joint Orthotics Steel and Aluminium Fixer Bionic Prosthetic Leg
Product name: Five-link Geometric Lock Pneumatic Knee Joint
Item No.: 3F28P
MOQ: 1pcs
Material: TI
Weight: 943g
Load Weight: 100 kg
Knee Flexion Range: 135° -
Lightweight Single Axis Hydraulic Knee Joint Fixer Waterproof Steel Orthotics with Swing and Support Control for Prostheses
Product name: Single Axis Hydraulic Knee Joint
Item No.: 3FSAH80
MOQ: 1pcs
Material: alloy
Application: Amputees
Sports Level: K3-K4
Waterproof Function: resistant to freshwater
Load Weight: 120kg -
High Quality Lightweight Aluminium Hydraulic Knee Joint Fixer Orthotics for Prosthetic Artificial Limb Leg High-Tech Solution
Product name: Hydraulic Knee Joint
Item No.: 3F37
MOQ: 1pcs
Color: Green
Application: Amputees
Weight: 1050g -
High-End Seven-Axis Rotary Hydraulic Cylinder Waterproof Bionic Knee Joint Prosthetic Limbs Intelligent Orthotics Fixer
Product name: Seven-axis hydraulic knee joint
Item No.: WDF-01
MOQ: 1pcs
Color: black
Application: Amputees
Weight: 898g -
Micro Intelligent Hydraulic Damping System China-Made Smart Knee Joints Ultra-Low Power Consumption Customizable Settings
Product name: Smart Hydraulic Knee Damping System
Item No.: Zeanso
MOQ: 1PCS
Color: black
Weight: 1350g±25g
Maximum flexion angle: 125°
Waterproof rating: IP67(Weather-resistant, splash-proof)
Activity Level: 2/3/4
Maximum Load Capacity: 136kg
Integration: Bluetooth
Full charge walking time: 3 days (Different for each individual)
Fully charged walking steps: 35,000 steps (Different for each individual)
Maximum walking speed: 5 km/h -
Blue Female Connector Orthotics Lightweight Waterproof Prosthetic Knee Joint Implants Interventional Materials
Product name: Waterproof Knee Joint Female Adaptor
Item No.: WPK-001B
MOQ: 1PCS
Color: Blue
Application: lower limb amputees -
High Quality Knee Joint Aluminum Prosthesis Factory Direct Sale Waterproof Orthotics Fixer for Women
Product name: Waterproof Knee Joint Female Adaptor
Item No.: WPK-001
Load Weight: 110 kg
Weight: 350 g
Application: lower limb amputees -
Adjustable Metal Hydraulic Lock System Knee Support Brace for Bone
Product name: Hydraulic knee joint
Item No.: 3F33
Load Weight: 120 kg
Weight: 1155 g
Knee Flexion Range: 135° -
Four-Axis Knee Joint Orthotics Lockable Steel and Aluminium Material Prosthetic Knee Joint
Product name: Locked Four Axis Knee Joint
Item No.: 3F35B
Load Weight: 150kg
Weight: 750g
Knee Flexion Range: 120° -
Medical Rehabilitation Seven-Axis Geometry Lock Hydraulic Knee Joint
Product Name：Seven Axis Geometric Lock Hydraulic Knee Joint
Item No. ：3FH15Z
Usage：Amputee
Weight：890g
Load Weight：100 Kg
Knee Flexion Range： 155° -
Medical locking four-link knee joint made in China
Product name: Locked Four Axis Knee Joint
Material: Stainless Steel/Titanium Alloy
NO.: 3F35B
Weight: 500-750g
Knee flexion range: 120°
Load Weight: 100kg -
Factory direct hydraulic geometric multi-link knee joint device
Hydraulic Geometric Multi-link Knee Joint
Load Weight:150Kg
Knee Flexion Range：145°
Load Weight:150Kg
Material: TI/AL7075/Carbon fiber
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Medical hydraulic knee joint with precise cushioning to improve range of motion
Product name: Hydraulic Knee Joint
Item No.: 3F37
MOQ: 1pcs
Color: Green
Application: Amputees
Weight: 1050g -
Single Axis Hydraulic Knee Joint Swing-and-Support Control Prosthetic Leg Parts AK Waterproof Implants Interventional Materials
Single Axis Hydraulic Knee Joint Swing-and-Support Control Prosthetic Leg Parts AK Waterproof Implants Interventional Materials
Product Name: Single Axis Hydraulic Knee Joint With Swingand Support Control
Item: 3FH-SAH8O
Material: Aluminum Alloy/Titanium Alloy
Weight: 1350g
Load Weight: 150kg
Knee Flexion Range: 165° -
High-Tech AI Bionic Aluminium Knee Joint Implant Intelligent Knee Prosthetics Safer Easier Artificial Limbs for Mobility
High-Tech AI Bionic Aluminium Knee Joint Implant Intelligent Knee Prosthetics Safer Easier Artificial Limbs for Mobility
Product name:AI Smart Prosthetic Knee
Activity Level :4
Maximum load capacity :136kg
Waterproof rating IP67 :(weatherproof and splashproof)
Integrated :Bluetooth
Maximum flexion angle :125°
Weight :1350g ± 25g
Running time on a full charge: 3 days (may vary based on user usage)
Step count on a full charge: 35,000 steps (may vary based on user usage)
Maximum speed :5 km/h
Pre-bend angle :6°
Power adapter: Must be charged with the standard 5V/1A power adapter; otherwise, damage may occur.
Modes: Basic, Lock, and Cycling -
Single Axis Hydraulic Knee Joint With Swingand Support Control Prosthetic Leg Parts AK Artifical Limb Waterproof Buffer
Single Axis Hydraulic Knee Joint With Swingand Support Control Prosthetic Leg Parts AK Artifical Limb Waterproof Buffer
Product Name: Single Axis Hydraulic Knee Joint With Swingand Support Control
Item: 3FH-SAH8O
Material: Aluminum Alloy/Titanium Alloy
Weight: 1350g
Load Weight: 120kg
Knee Flexion Range: 135° -
Prosthetic limb with locking prosthesis knee prosthesis titanium quadriaxial knee orthopedic implant prosthetic shank
Four-Bar Hydraulic Knee Joint Orthotic Knee Joint Artificial Leg Prosthesis Lower Limb Amputees Made in China
Product name: Locked Four Axis Knee Joint
Material: Stainless Steel/Titanium Alloy
NO.: 3F35B
Weight: 500-750g
Knee flexion range: 120°
Load Weight: 100kg -
Artificial limb titanium quadriaxial knee orthopedic implant prosthetic limb lower leg prosthesis with locking prosthetic knee joint
Four-Bar Hydraulic Knee Joint Orthotic Knee Joint Artificial Leg Prosthesis Lower Limb Amputees Made in China
Product name: Locked Four Axis Knee Joint
Material: Stainless Steel/Titanium Alloy
NO.: 3F35B
Weight: 500-750g
Knee flexion range: 120°
Load Weight: 100kg -
blue knee joint
Standing Anti-Fall with Self-Locking Mechanism
A four-axis联动 system creates a geometric locking mechanism that automatically locks the knee joint when standing under load, enabling stable standing even for users with weaker lower limb strength, elderly individuals, or those newly fitted with prosthetics. Walking on flat ground or gentle slopes is smooth and less prone to leg buckling or falls.
Step Forward Safely with Natural Gait
When stepping forward, the joint automatically shortens the effective length of the prosthesis and raises the toe clearance from the ground, significantly reducing the risk of dragging feet or tripping. It mimics natural human walking patterns, resulting in a more coordinated and aesthetically pleasing gait.
Large Knee Flexion Range for Unrestricted Daily Activities
With maximum flexion reaching 145°–170°, it allows effortless squatting, sitting on low stools, kneeling, and climbing stairs—ideal for everyday scenarios such as home use, shopping, and short-distance travel.
II. Pneumatic Damping System: Effortless Walking at Various Speeds
Independently Adjustable Flexion and Extension Resistance
The cylinder features separate channels for flexion and extension, allowing fine-tuning of resistance based on user weight and walking speed. Whether strolling slowly or walking briskly, movement remains smooth and seamless without jerking during speed changes.
Built-in Assist Spring Reduces Physical Strain
A high-stiffness assist spring supports active knee extension, ensuring smooth rebound during the swing phase. This reduces fatigue during prolonged walking and offers greater ease compared to mechanical locking knees.
Pneumatic Medium for Hassle-Free Operation
Unlike hydraulic knees, there's no risk of oil leakage. The system maintains stable airtightness and consistent damping performance across temperature extremes, making it suitable for both cold northern climates and humid southern regions.
III. Materials and Craftsmanship: Lightweight, Durable, and Long-Lasting
Aerospace-Grade Aluminum Alloy Forged in One Piece
The main body is CNC-machined from precision aluminum alloy, with an anodized colored shell (blue in the image). The lightweight design ensures significantly lower overall weight than heavy steel joints, minimizing wearer burden. The metal casing resists impacts and corrosion.
Roller Needle Bearings for Smooth Transmission
Precision roller needle bearings are used in the connecting rod pivot points, ensuring smooth rotation with minimal friction loss. This results in reduced wear over repeated use, low repair rates, and extended service life.
High Load-Bearing Capacity
The standard model supports up to 125 kg, meeting the daily load requirements of most adult amputees.
IV. Installation, Adjustment, and Maintenance Advantages
Easy Alignment Adjustment
The top conical core allows slight front-to-back translation, enabling prosthetists to quickly achieve precise alignment. This broadens adaptability to various residual limb conditions.
Simple and Low-Cost Maintenance
The pneumatic structure eliminates frequent hydraulic oil replacement; only periodic checks of valve seals are required. With standardized components, repairs and replacements are cost-effective, ideal for long-term home use.
Wide Compatibility
Suitable for transfemoral and knee disarticulation amputees, this prosthesis is ideal for individuals with moderate activity levels. It meets both rehabilitation training needs and daily long-term mobility, offering excellent value for hospitals and rehabilitation centers requiring bulk fittings. -
Waterproof single-axis hydraulic knee joint
Product Number：3FH-SAH80
Product Name：Waterproof single-axis hydraulic knee joint
Load Weight：120kg
Weight：1.35kg
Material：Titanium alloy + aerospace-grade magnesium-aluminum alloy + beryllium bronze
Knee Flexion Range：135
Water-resistant design：Permitted for use in freshwater environments
Price:USD：2800.0 -
Prosthetic Artificial Limb Waterproof Hydraulic Knee Joint Prosthetic Knee Joint
Product name: Prosthetic Waterproof Hydraulic knee joint
Place of Origin: China
Color: Blabk and gray
Package: Box -
Artifical Limb Single Axis Waterproof Knee Joint FeMale Adaptor Aluminum Alloy Prosthetic Leg Manual Lock
Artifical Limb Single Axis Waterproof Knee Joint FeMale Adaptor Aluminum Alloy Prosthetic Leg Manual Lock
Product name: Waterproof Knee Joint Female Adaptor
Material: Aluminum alloy
Weight :275g
Load Weight :120kg
Knee flexion range :135° -
Waterproof Knee Joint Female Adaptor Aluminum Alloy Artifical Limb Single Axis Prosthetic Leg Manual Lock
Waterproof Knee Joint Female Adaptor Aluminum Alloy Artifical Limb Single Axis Prosthetic Leg Manual Lock
Product name: Waterproof Knee Joint Female Adaptor
Material: Aluminum alloy
Weight :275g
Load Weight :120kg
Knee flexion range :135° -
Aluminum 4-Bar Pneumatic Knee Joint Leg Prosthesis Prosthetic Artificial Limbs Parts for Rehabilitation Equipment for Prosthetic
Aluminum 4-Bar Pneumatic Knee Joint Leg Prosthesis Prosthetic Artificial Limbs Parts for Rehabilitation Equipment for Prosthetic
Product Name: Four Bar Pneumatic Knee Joint
Item: 3F25P-B
Material: Aluminum Alloy
Weight: 850g
Load Weight: 125kg
Knee Flexion Range: 135° -
Prosthetic 4-Bar Pneumatic Knee Joint Leg Prosthesis Aluminum Artificial Limbs Parts Rehabilitation Equipment
Prosthetic 4-Bar Pneumatic Knee Joint Leg Prosthesis Aluminum Artificial Limbs Parts Rehabilitation Equipment
Product Name: Four Bar Pneumatic Knee Joint
Item: 3F25P
Material: Aluminum Alloy
Weight: 850g
Load Weight: 125kg
Knee Flexion Range: 135°