Price on request
3R80 Modular Knee Joint
Hydraulic and pneumatic knees. A single-axis knee with rotary hydraulic control of stance and swing.
Blatchford
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Blatchford · Hydraulic and pneumatic knees · PR-024
Blatchford KX07 Waterproof Hydraulic Prosthetic Knee
The Blatchford KX07 is a waterproof polycentric prosthetic knee with a four-bar linkage and hydraulic control of both swing and stance. An aluminium frame with self-aligning bearings and a silicone cover lets it cope with water, dirt and sand, and it rinses clean with fresh water. It bends to 160 degrees, weighs 2 lb 11 oz and has a free-swinging cycling mode plus a flexion lock.
- Activity level
- K3 to K4
- Max user weight
- 330 lb (K3); 320 lb (K4)
- Knee flexion
- 160 degrees
- Weight
- 2 lb 11 oz
Blatchford KX07 key features
- Hydraulic swing and stance control
- Four-bar linkage shortens the limb in swing
- Waterproof; tolerates dirt and sand
- Free-swinging cycling mode
- Flexion lock works on flat or sloping ground
- 36-month warranty
Who the Blatchford KX07 suits
Suited to active K3 and K4 transfemoral users who work or play in wet, muddy or dusty places. The weight limit is 330 lb at K3 and 320 lb at K4. Setup is carried out by a prosthetist.
This kind of device is prescribed and fitted by a clinician. An enquiry starts that conversation. It is not a purchase.
Figures for comparing
- Weight
- 1.2 kg (2.6 lb)
- Max user weight
- 145.2 kg (320 lb). 330 lb (149.7 kg) at K3; 320 lb (145.2 kg) at K4
The same units on every product, converted from the specifications below. Where a source gives two limits, the lower one is shown.
Blatchford KX07 specifications
| Activity level | K3 to K4 |
|---|---|
| Max user weight | 330 lb (K3); 320 lb (K4) |
| Knee flexion | 160 degrees |
| Weight | 2 lb 11 oz |
| Build height | 220 mm |
| Design | Four-bar polycentric, hydraulic |
| Frame | Aluminium |
| Water use | Waterproof |
| Warranty | 36 months |
| Maker country | United Kingdom |
| Price | Quoted on request |
| Brand | Blatchford |
| Category | Lower limb - knees, hips and leg systems, Hydraulic and pneumatic knees |
| Catalog ID | PR-024 |
Compared with the source page on 5 October 2026. Details can change, so we confirm them in your quote. Open the source page.
Blatchford KX07: common questions
Is the Blatchford KX07 waterproof?
Yes. Blatchford describes it as waterproof and able to tolerate water, dirt and sand. It can be cleaned with fresh water.
What is the KX07 weight limit?
It is 330 lb for K3 users and 320 lb for K4 users.
Can I cycle with the KX07?
Yes. It has a free-swinging cycling mode, and a separate flexion lock for standing on flat or sloped ground.
How to get a quote for the Blatchford KX07
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You receive availability, a price and delivery options by email, and decide after that.
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