Sigma Elevators

Elevator installations can vary depending on the building’s size and design. Sigma for Elevators offers two main types of installations:

Traction Elevators

Traction elevators are commonly used in tall buildings. They operate by lifting the cab using steel cables that are attached to a counterweight and powered by an electric motor. The counterweight helps balance the load and reduce the strain on the motor.

  • Use a hoisting system of cables and counterweights to move the elevator cab.
  • Are more common in high-rise buildings.
  • Can travel faster than hydraulic elevators.
  • Are more energy-efficient than hydraulic elevators.
  • Require more space for the elevator shaft and machine room.

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Hydraulic Elevators

Hydraulic elevators are typically used in smaller buildings, often up to six floors tall. They work by pushing the cab up from underneath using a hydraulic cylinder and piston. The cylinder extends below the elevator pit and is filled with hydraulic oil. When the oil is pressurized, it pushes the piston, raising the cab.

  • Use hydraulic pistons to move the elevator cab.
  • Are more common in low-rise buildings.
  • Cannot travel as fast as traction elevators.
  • Are less energy-efficient than traction elevators.
  • Require less space for the elevator shaft and machine room.

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Comprehensive Comparison Table: Hydraulic vs. Traction Elevators

CriteriaHydraulic ElevatorsTraction Elevators
Working MechanismUses hydraulic fluid to lift and lower the cabUses ropes and a counterweight system to move the cab
Energy EfficiencyGenerally less energy-efficient due to the hydraulic pumpMore energy-efficient as they use counterweights
Safety FeaturesEmergency stop buttons, door sensors, overload protectionEmergency brakes, backup generators, speed governor
Installation TimeFaster to installTakes longer due to the complexity of the rope and pulley system
CostLower initial cost but higher maintenanceHigher initial cost but lower long-term maintenance
SpeedSlower, usually up to 200 feet per minuteFaster, can go up to 500 feet per minute or more
Noise LevelQuieter operationMay produce more noise due to the machinery involved
Maintenance RequirementsRegular maintenance of hydraulic fluid and sealsRegular inspection of ropes and pulleys
Best Suited ForLow to mid-rise buildingsMid to high-rise buildings
LifespanGenerally shorter lifespan due to wear and tear on hydraulic systemsLonger lifespan due to less wear and tear on mechanical parts
Space RequirementsRequires a machine roomCan be designed with or without a machine room

Take Your Building to New Heights with Our Elevators!

Make an Informed Decision with Sigma For Elevators

Choosing the right elevator installation system is a critical decision that impacts not just the functionality but also the safety and efficiency of your building. Our comprehensive guide on Hydraulic and Traction Elevators is designed to provide you with all the essential information you need.

We invite you to consult our detailed comparison table to figure out the installation system that best suits your building’s specific requirements. Our team of experienced engineers and technicians at Sigma Elevators is committed to delivering solutions that are both innovative and reliable.

Don’t leave such an important decision to chance.  

Contact Sigma Elevators today for a personalized consultation and ensure that your building is equipped with the most suitable and efficient elevator system.