Medium Electric Passenger Stairs

The TK-EKT44 is a fully electric, self-propelled passenger boarding stair designed for aircraft door heights from 1,950 to 4,850 mm across regional and narrow-body aircraft fleets.

Its 1,500 mm clear stairway and spacious 3,500 × 2,200 mm platform support smooth and efficient passenger boarding. A purpose-built low-center-of-gravity chassis, four hydraulic stabilizers and the safe-docking system ensure stable operation, precise final approach and automatic braking near the aircraft. An optional canopy is available for enhanced passenger protection in adverse weather.

  
    Specifications
      Power Type
      Battery Electric
    
      Boarding Height
      1,950–4,850 mm
    
      Clear Stair Width
      1,500 mm
    
      Platform Size
      3,500 × 2,200 mm
    
      Step Size (L × W × H)
      276 × 1,500 × 192 mm
    
      Number of Steps
      23 (11 upper, 12 lower)
    
      Drive Motor Rated Power
      80 kW
    
      Battery Type / Capacity
      82.43 kWh LFP
    
      Maximum Speed
      60 km/h
    
      Final Docking Speed
      ~0.3 km/h
    
      Charging Time
      ≤ 1 hour, DC fast charging
    
      Dimensions (L × W × H)
      7,230 × 2,465 × 3,280 mm
    
      Curb Weight
      7,270 kg

Features

Extended Boarding Height Range
The 1,950–4,850 mm working range supports passenger boarding across regional, narrow-body, and selected wide-body aircraft.

Full-Electric Drive System
An 80 kW permanent-magnet motor with liquid cooling and an 82.43 kWh LFP battery delivers efficient, low-emission operation.

Safe Aircraft Docking
Distance sensing, controlled low-speed approach, automatic braking and anti-collision protection support safe and accurate aircraft docking.

Safety Interlocks
Travel, charging, stabilizer deployment, and stair operations are electronically interlocked to prevent unsafe vehicle movement.

Structural Stability
A purpose-built low-center-of-gravity chassis, wide-track axles, four hydraulic stabilizers and dual locking support stable elevated operation.

Passenger Safety & Flow
A 1,500 mm clear stairway, anti-slip aluminum treads, illuminated handrails and a large platform support safe, efficient boarding.

Operator Control & Monitoring
CAN-bus controls, a 10.25-inch digital instrument display and an 8-inch equipment display provide intuitive operation and clear system monitoring.

Emergency Operation
Emergency electric and manual pumps, manual retraction controls and towing points allow rapid aircraft clearance following a system failure.

Aircraft Compatibility

Designed to accommodate a broad range of regional, narrow-body, and selected wide-body aircraft.

Representative models include A318/319/320/321, A300/310, A330/340, A350, B737, B747, B757, B767, B777, B787, ERJ145/E170/E190, F50/F100, CRJ-900, MD-80/90/11, DC-10, C919

Standards

Designed with reference to applicable IATA AHM, SAE and civil aviation requirements for passenger boarding stairs and electric ground support equipment.