What are the Benefits of Installing Overhead Traction Elevators?

Overhead traction elevators are the most commonly used types of lifts in buildings. There are many reasons why it is so popular. It has longer travel range, it is quick, and offers better power efficiency compared to other types of lifts. There is also no need for hydraulic oil. Find out what these elevators are and what their key benefits are. What are Overhead Traction Elevators? These types of elevators use rolling steel ropes over a pulley for pulling the elevator car. These pulleys are grooved and are referred to as ‘sheaves’. The system uses a counterweight for balancing the elevator car. In some designs, two elevators are made and they balance each other. However, these designs limit their operation in the opposite directions only. Modern traction elevators use flat steel belts in place of the traditional rolling steel ropes. There are many similar developments that have helped these lifts become more energy efficient. Flat steel belts have a carbon fiber core and are lightweight. It does away with the need for any lubricant by using a special high-friction coating. This helped in significantly reducing the energy required for operating elevators, especially in high-rise buildings. Key Advantages Some of the main advantages of using overhead traction elevators in your building are as follows:
  • Speed: Hydraulic elevators are the next most popular options, but traction lifts offer better speed. This makes this system more suitable for high-rise buildings. It is not only fast, it also offers a smooth ride.
  • More Energy Efficient: It is not just the design of the belt that helps improve efficiency in this type of lift. The way it works also helps reduce the amount of energy consumed. The counterweight-balancing mechanism eliminates the need for energy consumption for pushing or pulling the car. On the other hand, other types of lifts require more energy because they either push or pull the car.
These types of lifts don’t have to push or pull the lift car against gravity. Types of Traction Elevators The basic concept of operation of these lifts may be simple and based on counterbalancing, but there are two different types of traction elevators depending on the type of motors they use. These are the geared and gearless traction lifts. Geared Traction Lifts These traction lifts use AC/DC motors for driving worm-and-gear-type unit. The gear system then turns the hoisting sheave. The advantage of using this system is that the gear reduction requires less powerful motor for turning the sheave. The lift rates are however slower compared to most of the gearless lifts. The usual speeds for these lifts range from 125 to 500 feet per minute. And their maximum car-load capacity can be up to 30,000 pounds. The system uses electrically controlled brakes between the motor and gear unit for halting the elevators at the desired floors. Gearless Traction Lifts Gearless traction lifts were first invented in the early 1900s and are specifically suited for high-rise buildings. They are fast and quite durable. Once you install a gearless traction elevator in your building, you will not have to replace it even if you upgrade your elevator control system with the latest electronics. While the geared traction systems operate up to maximum speeds of 500 feet per minute, gearless systems can run even faster. The system features a counterweight that moves on dedicated guiderails. This counterweight is connected to a set of wire cables (hoisting ropes), which are fixed to the top of the elevator. These ropes use special grooves to wrap around the drive sheave. So you can choose the right overhead traction elevator based on your building type and specific requirements. Your elevator installation company can help you make the right choice depending on your all the key factors.