Yack
The Yack Caterpillar is designed for people with mobility difficulties and disabled people who have to overcome High-Altitude Architectural Barriers on a daily basis.
With this caterpillar, it is possible to climb and descend very easily on all types of stairs, even on extremely steep stairs.
It does not require much room to maneuver and can also be used in a tight space. Meticulously designed and improved electronics make this caterpillar extremely refined, reliable and safe to use.
The new Caterpillar series implements two new features that include input of user weight and step height directly from the control panel. These two parameters optimize movement on the staircase, significantly improving ride comfort.

Tech. characteristics | |
---|---|
Max. capacity | 120-130kg |
Speed | 5-10 s / m |
Min. the width of the stairs | 850 mm |
The Yack Caterpillar is designed for people with mobility difficulties and disabled people who have to overcome High-Altitude Architectural Barriers on a daily basis. With this caterpillar, it is possible to climb and descend very easily on all types of stairs, even on extremely steep stairs. It does not require much room to maneuver and can also be used in a tight space. Meticulously designed and improved electronics make this caterpillar extremely refined, reliable and safe to use.
The display on the control panel provides insight into the function of the caterpillar while improving security for the operator and the user. The instructions on the interactive display record the time of Use and ensure the correct use of the caterpillar. The display shows the battery charge level, slope, and ascent and descent rate. When the battery is at a minimum, another 20 steps can be taken. The Yack is equipped with an emergency brake.
The new Caterpillar series implements two new features that include input of user weight and step height directly from the control panel. These two parameters optimize movement on the staircase, significantly improving ride comfort.
Sound alarms aligned with text alerts on the screen increase the safety of Use and signal:
- Low battery charge
- Overload
- Faulty motor absorption
- Deviations in the function of the electronic circuit board
- Deviations in brake correctness
- Excessive tilt during use
- Switch to standstill with an audible alarm every 30 seconds
- Improved electronics improve reliability and performance
- Multifunctional display on the control panel with built-in self-diagnostics and warnings for use
- Emergency brake
- Seat belt
- Transition to a dormant state after the caterpillar has not been used for a certain amount of time
- Quick key insertion allows immediate stop of a moving caterpillar
- It is equipped with dual control controls to make it easier for the operator to use
- Possibility of disassembly for easy transport
N971 | N971H1 | N971H | N972 | N972H1 | N972H | N973 | N973H1 | N973H | |
Engine | 220 W | ||||||||
Battery | 2 x 12 v 5 Ah | ||||||||
Charger | outdoor | ||||||||
Weight | 42 kg | 43 kg | 43.5 kg | 38 kg | 39 kg | 39.5 kg | 34.7 kg | 35.7 kg | 36.2 kg |
Caterpillar depth (with folded foot rests | 570 mm | 570 mm | 570 mm | 410 mm | 410 mm | 410 mm | 370 mm | 370 mm | 370 mm |
Width | 510 mm | 510 mm | 510 mm | 530 -700mm | 530-700mm | 530-700mm | 370 mm | 370 mm | 370 mm |
Minimum management space | 700 x 700 mm | 800 x 800 mm* | 800 x 80 0 mm* | ||||||
Max. capacity | 130 kg | 130 kg | 120 kg | 130 kg | 130 kg | 120 kg | 130 kg | 130 kg | 120 kg |
The number of stairs that can be crossed | 500 | 400 | 300 | 500 | 400 | 300 | 500 | 400 | 300 |
The maximum height of the stairs | 210 mm | 240 mm | 260 mm | 210 mm | 240 mm | 260 mm | 210 mm | 240 mm | 260 mm |
Minimum tread size | 120 mm | ||||||||
Speed (number of steps per minute) | 12 | 11 | 10 | 12 | 11 | 10 | 12 | 11 | 10 |
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N971, N971H, N971H1
Models N971, N971H, N971H1 have a built-in seat where people are directly transported without wheelchairs. The seat has foldable arm and leg rests and height adjustable headrest

N972, N972H1, N972H
The adaptive platforms of the n972, N972H1 and N972H stair climbers are almost universal, can accommodate a wide range of wheelchairs and be transported safely. It is simple and practical, can be disassembled into multiple parts to improve transport.

N973, N973H1, N973H
Models N973, N973H1, N973H allow easy adaptation to many types of wheelchairs with reduced maneuverability. They mostly fit wheelchair models that cannot be attached to the N972 model – such as pediatric wheelchairs. The great advantage of these models is that they can be attached to wheelchairs whereby the wheelchairs can move smoothly over a flat surface.
Are you interested in this product? Send us an inquiry.