3W520 Modular Knee Joint with pneumatic swing phase control

Item number: 3W520-

Category: All products

Proximal Connection

Loading Class: 100 kg
Category: Knee and hip joints
Material: Aluminum

There are variations of this item. Please select the variation you wish.


3W520 Modular Knee Joint with pneumatic swing phase control

  • for AK amputees
  • for fitting long stumps
  • medium functional level
  • high stance phase stability, geometry lock with polycentric system
  • pneumatic swing phase control
  • not recommended for patients with ahigher activity level


This knee joint has either a pyramide or an outside thread of M36x1,5 mm at its proximal end and a 30 mm Ų tube receiver at its distal end.
This high-capacity pneumatics enables an effective fitting of normal stumps as well as knee-ex articulations.
Maximum loading class is 100 kg/220 lbs.
  • Flexion and extension are separate and also infinitelyvariable.
  • Flexion resistance for an harmonius initiation of swing phase.
  • Extension resistance for an active and reliable extension.

Technical data: 
  • Maximum flexion angle: 150°
  • Prox. tube connection: 30 mm
  • Weight 3W520: 905 g
  • Weight 3W520=G: 875 g
  • Max. body weight: 100 kg/220 lbs.
  • Material: aluminum
  • Activity class: 2 - 3

Cosmetic Foam Cover 3W314-30 or 3W315-30

Additionally carried loads are also to be considered for weight selection.

Article No. Material  Weight  Loading Class
3W510  aluminum  905 g  100 kg
3W510=G aluminum 875 g 100 kg

Technical Informationen