The power assisting auxiliary drive

Simply mobile – anywhere

The SERVO drive wheels can be disengaged without tools and simply with a single movement. Every foldable wheelchair with attached SERVO folds up very compact and handy.
Thanks to the innovative NUI wheel bearing system, the drive wheels of the SERVO can also be stowed on top of each other or side by side.

Permissible total weight (1)

200 kg

Maximum person weight

150 kg

Possible wheel sizes


Speed ​​forward | backward

supports up to 6 km / h, 3 km / h

Range with one battery charge (2)

up to 55 km, over 25 km

Braking / climbing ability (3)

until 20%

Battery technology

Lithium-ion, Lead-Gel, Lithium-ion


28.8 V / 16 Ah 24 V / 9.5 Ah

DC motor

2 x 28.8 V / 70 W

Weight drive wheels

each 10.1 kg

Weight battery pack

4.2 kg, 5.8 kg

Back Recline

-10º -+ 40º

Weight of HMI device

0.1 kg

Weight battery bag

0.2 kg

Weight interface

0.1 kg

Total weight

24.8 kg, 26.4 kg

Application class


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The SERVO fits through its space-saving storage in almost every trunk.



ALPHA concept

Synergy of power and lightness

The ALPHA concept sets new standards with state-of-the-art motors in conjunction with the specially developed lithium-ion battery pack. As a result, the SERVO reaches a range of up to 55 km and this with a total battery weight of just 4.2 kg.


Leading the way with innovative technology –
the SERVO convinces all along the line

Lithium-ion battery with a range up to 55 km
NUI – New recording and locking system of the drive wheels Drive wheels without thru axles
ALPHA concept – combination of state-of-the-art electric motors and lithium-ion battery technology
supports the starting movement up to 6 km / h
individual attachment to almost all standard wheelchairs
to stow and transport in a space-saving way


Innovative technology that inspires –
the assembly of the SERVO

The newly developed NUI pick-up and locking system no longer require thru-axles, enabling fast and effortless attachment of the drive wheels to the wheelchair. Since the SERVO can be attached to almost all wheelchairs, you do not need to do without your usual personal wheelchair.


Lithium ion battery pack

Range up to 55 km

Lead gel battery pack

Range over 25km

Spoke protectors

for attachment to your wheelchair


for a safe driving pleasure


for attachment to your wheelchair

Transport bag 24″

for your wheelchair wheels