Elevator Door System Parts

Elevator Door System Parts

Elevator doors are some of the hardest working parts in your elevator system. They open and close 200,000 times per year, so they get a lot of wear and tear.

This means that they need regular maintenance and adjustments to keep them operating smoothly. That’s why it’s important to have a good elevator company that can maintain your elevator doors and the rest of your system.


Rollers are used in the elevator door system to control the movement of a door. They work by transferring rotational motion from a motor to the rollers and dampening any vibrations.

Elevator doors are heavy so they require strong and durable rollers to help them stay up and in place. This helps prevent them from banging against other parts of the elevator and causing injury.

The elevator door system also requires an intelligent drive that offers several modes of operation, including speed and distance control. This ensures that the opening and closing of the doors is smooth and fast without affecting the safety of passengers.

Another important feature of the drive is that it has an ac input power supply to convert it to dc for application to the motor. This allows the motor to run at low speeds when the doors first open and then accelerates to high speeds for smooth and fast closes.

A third feature of the drive is that it is a regenerative drive. This means that when it is running at low speeds, the power generated by the motor is returned to the ac input line, so that the system doesn’t use too much electricity.

One of the most important things to keep in mind about rollers is that they need to be kept clean and free of debris. This helps them work more efficiently and is better for the health of the elevator.


Belts are a key component of an elevator door system. The belts are secured to a reel, rotated by a motor and used to open and close the door.

Belt alignment sensors are designed to help ensure the belt is running straight and not out of alignment left or right. Elevator Door System Parts This is important for ensuring the belt will run smoothly and safely during operation.

Another key area of the elevator belt system is the splices, which should be installed properly for maximum performance. If the splices are not installed correctly, it could lead to belt failure and costly repairs.

The belts can be made of different materials. Some of the most common include polyester, rubber and stainless steel.

Choosing the right material depends on your specific application and product requirements. For example, if you’re transporting products with a high level of fat and oils, then a belt quality with high resistance to these substances is recommended.

Additionally, the belts should be resistant to vibration and flexing. The belt should also be able to handle and contain the weight of the product, which is why you’ll see cleated belts used in some elevator applications.

Elevator belts are essential to the success of an elevator and should be inspected regularly to ensure they’re in good condition. They can also affect the overall performance and durability of your elevator. For example, if the belt isn’t strong enough, it can cause the lift to stop working or even break down completely.


Shafts are a very important part of an elevator system. They are used for connecting elevator car doors and shaft doors to the door drive that moves them on opening and closing.

Depending on the particular application, the shaft can have various parameters that affect how it feels and performs. These include overall stiffness, butt and tip stiffness and tip flex.

In addition, shafts can have a number of other parameters that may affect their performance as well. They can be categorized by a holistic flex or by individual parameters, such as the first axial bending frequency or the whirling that can occur at a certain rotational speed.

For shafts that have no or very minimal misalignments, a rigid coupling is typically the preferred design. Flexible couplings are less common, but they can be more cost-effective Elevator Door System Parts because they can accommodate radial and slight angular misalignments. However, they do not have the same shock absorption or vibration dampening capabilities as rigid couplings. This can result in higher costs for the customer.


A linkage is a mechanical device that transforms a given input force and movement into a desired output force and movement. They are used in a wide range of systems including robots, machine tools and cable driven or tensegrity mechanisms.

The linkages are found in many machines and devices that we use on a daily basis in unexpected ways. For example, the linkages in a car’s engine convert linear motion into rotational movement to drive wheels and turbines. They are also used in many of the early computers that use a mechanical system of levers and gears to make up their circuitry.

In the elevator door system, linkages are important for moving the landing doors and car doors along a given curve quickly and accurately. They also help protect passengers from falling when the doors are open.

When designing a linkage, there are many different factors to consider. Some of these factors include the mechanical advantage of the mechanism and the speed ratio.

Another consideration is the number of degrees of freedom (DOF) for the linkage. This determines how much of the input movement is converted into the desired output movement.

In addition to these factors, the design of a linkage will also depend on how it performs during operation. This is a factor that is often overlooked during the design process but can have a major impact on the final outcome of a linkage.


The elevator door system is a complex and multi-faceted machine, with the majority of components needing periodic maintenance. The tracks and sills need to be cleaned, rollers and gibs inspected and linkages checked for alignment. The elevator controller and dispatcher need to be upgraded every 20 years, hoist rails need to be realigned, and the hydraulic piston need to be sleeved or replaced depending on how much use it gets.

The best way to keep your apex teetering is to perform periodic preventive maintenance on your aging vertical transportation system. A good elevator technician will check out all of the moving parts to ensure they are in tip top shape and performing at peak efficiency. The most expensive component in your elevator isn’t always the one you’ll be using most often, so regular maintenance will save your wallet and your sanity in the long run. Among the most important parts of your elevator are the elevator doors, so a little TLC can go a long way. The most dependable doors will not only be safer, they will be more convenient to operate. The elevator door of the future is an efficient, safe and reliable elevator. Whether your elevator has just been installed or is about to hit the road, give us a call to see what we can do for you.


The operator in an elevator door system works to open and close the doors automatically. These operators come in a variety of shapes and sizes, but they all operate in the same way. The motor inside of the operator opens and closes the doors based on a signal sent from a user-activated credential or push button.

Some operators have a safety feature to prevent closing on someone who is already in the doorway. They typically use motion sensors that track people as they move through the opening. If the sensor detects that someone is still in the doorway, the operator will stop and reverse course to prevent harm from occurring.

Low-energy automatic operators are used for small business and residential applications that require access for disabled users. These units reduce the force needed to open and close a door, making them much easier to use.

Electro-mechanical operators are designed for primarily automatic applications and are built to last through consistent use. They are usually used on doors in medium sized retail stores or offices.

They can also be installed on doors in high traffic commercial buildings such as grocery stores or department stores. They are designed to handle rigorous use and abuse, which can make them ideal for a wide range of openings. They are also available in a variety of different models, so they can be tailored to meet the specific needs of any building.