Frequently asked questions
The minimum seat height on the electric Carl surgical chairs is 490 mm (19.2 in), allowing surgeons of different heights to achieve an ergonomic working posture. For applications requiring an even lower seating position, the Carl Swing can be ordered with a seat height of 430 mm (16.9 in), while selected Carl 4 models are available with a minimum seat height of 450 mm (17.7 in). This flexibility helps optimize ergonomics for a wide range of surgeons and surgical specialties.
No. On newer Rini models, the battery can be replaced quickly and easily without tools.
Lift the plastic cover, disconnect the cable connector, and remove the battery. No tools are required.
Connect the charger to the wall outlet and the charging port located on the wheel frame cover between the rear wheels.
The battery typically supports hundreds of procedures. We recommend charging it approximately once per month as part of routine maintenance.
Yes. The charger can be connected directly to a 110–230 V wall outlet, and the battery can be charged while the chair is in use.
Carl Spring and Carl Swing are mechanically adjustable and do not use batteries.
No. Many models are battery powered for convenient cordless operation, while some mechanical models do not require a battery.
The chairs are very similar, but the Mk3E includes an additional control panel on the armrest, allowing the surgeon to adjust chair height and brake functions directly.
The electric models are designed for a Safe Working Load (SWL) of up to 150 kg (331 lbs), while the mechanical models support up to 120 kg (264 lbs).
