The Servo

Bridging the Gap Between Manual and Automatic Wheelchairs

Starting at $8275

The Servo power-assist system makes it possible for wheelchair users — even with reduced strength — to move independently and increase the distance they can travel.

The Servo uses technology that mimics the effect of power steering in a car – it augments the user’s strength when pushing the wheel rims! Using the servo is just like using a wheelchair. Just easier.

That means you can maintain a healthy level of activity while reducing the strain on your muscles and joints.

The Servo gives you the control of a manual wheelchair with the added mobility and freedom of movement that comes with a traditional electric wheelchair.


Advantages over manual (unpowered) wheelchairs:

  • Much easier to self-propel over challenging surfaces such as thick carpets, rugs, and door transitions.
  • Easier and safer to travel both uphill and downhill.
  • Ability to independently travel longer distances without getting tired.

Advantages over traditionally powered wheelchairs:

  • Easier to control with reduced fine motor skills.
  • Adjustable degrees of assistance to maintain a healthy level of activity.
  • Decreased potential to injure yourself or others
  • Lighter and easier to disassemble for transport
Total weight approved 200 kg[1] (440 lbs) (person + wheelchair + SERVO)
Max. weight of the person 150 kg (330 lbs)
Possible wheel sizes 24″
Speed supports up to 6 km/h forward, 3 km/h backward
Range with one charge of the batteries [2] over 25 km
Braking/climbing capacity up to 20%[3]
Batteries 24 V / 8.5 Ah
Direct current motors 2 x 28.8 V / 70 W
Weight, powered wheels 10.1 kg (22.27 lbs)each
Weight, battery pack 5.8 kg (12.79 lbs)
Weight, control unit 0.1 kg (3.5 oz)
Weight, bag for battery pack 0.2 kg (7 oz)
Weight, interface 0.1 kg (3.5 oz)
Total weight 26.4 kg (58.2 lbs)
Class of application A, B
[1] Please note the manufacturer’s stipulations for the maximum load.
[2] According to ISO 7176-4, the range depends on the person’s weight, the surface material (carpet, tile, etc), temperature, and any factors that affect resistance.
[3] Up to 20% at a total weight of 160 kg (350 lbs), and up to 14% at a total weight of 200 kg (440 lbs).
The braking – / climbing capacity also depends on the surface material (carpet, tile, etc), temperature, and any factors that affect resistance.

Assembly and Operation