The new 3R80 features a modern and new design for increased durability, waterproofness and corrosion resistance.

The 3R80 is approved for users up to 150 kg (330 lbs). With the 3R80, both the stance and the swing phase are controlled by the hydraulics. For example, walking down stairs step-over-step and walking down inclines are effectively supported by closely approximating a physiological gait pattern, even at various walking speeds.

The rotation hydraulics of the 3R80 respond to the ground reaction forces in the stance phase at every step. They build up high hydraulic resistance, which prevents involuntary flexion of the joint.

The 3R80 also offers comprehensive adjustment possibilities for the individual adaptation of stance and swing phase characteristics. Flexion and extension resistance can be adjusted easily and independently. Optimum adjustment values for stance phase damping and response behavior between the stance and swing phase are achieved by gradually turning the adjustment rings. The level of resistance in the stance phase can be easily adapted to the requirements of the user and enables variable knee flexion under load up to 4° while bouncing, and more than 4° while yielding. An additional spring can be easily integrated in order to increase the extension assist force if required. The spring, setting aid and required tube adapter are included in the scope of delivery.
Key Features:

• Default swing: activation of stance requires a hip extension moment during loading.
• Individual adaptation of stance and swing phase: two settings for stance and two settings for swing phase with easy and independent adjustment for flexion and extension resistance.
• Waterproof and corrosion resistant: protected against fresh, salt and chlorinated water.
• Integrated manual lock: improved safety in wet areas and comfort when standing for long periods.
• High maximum flexion angle of 150°: allows extensive freedom of movement, for example when getting into a car.
• Robust, durable construction: with high-performance rotary hydraulics for active users.
• High weight limit of 330 lbs.: durable, robust knee with high weight limit.
• Multiple options for a variety of users: available in both a pyramid version and a threaded top version for long residual limb fittings.

Scope of delivery:

• 2R57 Titanium tube adapter, 34 mm diameter, 250 mm long
• 710H10=2×3 Adjustment wrench
• 513D59=1.3×8.8×86 Compression spring
• 4G1226=2 Spare set of extension stops

Specifications