Electrical Stairs

A. Escalators (Moving Stairs)

• A continuously moving staircase designed for vertical transportation.
• Inclined at 30° to 35° with step heights of around 200-220 mm.
• Used in high-traffic areas where elevators are insufficient.

B. Moving Walkways (Travelators/Auto Walks)

• A flat or inclined conveyor belt that transports people over short distances.
• Used in airports, malls, and hospitals for faster movement.
• Inclined moving walkways typically have an angle of 10° to 12°.

A. Major Mechanical Components

• Steps/Pallets: Moving platforms that users stand on.
• Handrails: Rubber or plastic belts synchronized with step movement.
• Balustrades: Side panels for safety, made of tempered glass or metal.
• Trusses: Metal framework supporting the entire system.

B. Drive & Control Systems

• Electric Motor: Drives the step movement.
• Gearbox & Chain System: Transmits power from the motor to the steps.
• Sensors & Safety Systems: Stop operation in case of emergencies.

A. Speed & Capacity

• Typical speed: 0.3 to 0.6 meters per second.
• Capacity: 4,000 to 12,000 people per hour.

B. Inclination Angles

• Escalators: Standard inclinations are 30° or 35°.
• Moving Walkways: Usually 0° to 12°.

C. Power Consumption

• Varies by length and load; most systems use 3-phase AC power with energy-efficient motors.
• Advanced models use variable frequency drives (VFDs) to reduce energy consumption when not in use.

• Automatic Stop Sensors: Detect obstructions or malfunctions.
• Emergency Stop Buttons: Located at entry and exit points.
• Skirt Brushes: Prevent objects from getting stuck between the steps and balustrade.
• Anti-Slip Steps: Grooved steps for better grip.
• Handrail Speed Synchronization: Ensures handrails move at the same speed as steps.

• Shopping Malls: Facilitates smooth movement of large crowds.
• Hospitals: Used in non-critical areas; elevators are preferred for patients.
• Airports & Train Stations: Enhances passenger flow.
• Office Buildings: Reduces waiting time compared to elevators.

• 6. Otis
• Schindler
• KONE
• Thyssenkrupp
• Mitsubishi Electric
• Hitachi