Elevator and Lift Door Modernization with TSG Lift Door Operators by Langer & Laumann

Why replacing the entire elevator door when the car door operator is sufficient?

In many cases it is sufficient to replace the car door operator in conjunction with the control unit when the elevator door goes slowly, uncontrollable fast, slams in the end position or runs unevenly. Thus, Langer & Laumann offers you a cost-efficive alternative to replacing the entire car and hoistway doors.

As long as your cabin door is still functional or spare parts are available, it is advisable to keep the original condition of the elevator. However, it is recommended to replace the ageing door drive against a modern drive concept. By modernizing your elevator system, you benefit from a significant increase in performance, improved personal security as well as increased reliability while reducing power consumption.

Langer and Laumann supplies the elevator industry with components and modernization packages for existing elevators and lifts for more than 15 years. The offered elevator modification packages are adapted to the corresponding lift systems, so that we can granted the possibility of a quick retrofitting with proven reliability.


Automatic Door Operator Modernization for Elevator Doors of Various Manufacturers

Due to its compactness and simplicity, the universal applicable closed-loop door operator TSG Lift can be installed in about 95% of today's elevators. The powerful DC motor can be adjusted to all types of doors, whether left, right, central (also telescoping), making it the ideal choice for upgrading your elevator system. The electric door operator is designed for proceeding door weights (door leaf mass) of up to 400kg (~880 lbs). No matter if you have a harmonic (crank-arm) or linear (cogged belt) door operator. We modernize them all.

The TSG Lift has been installed thousandfold as modernization solution in elevator systems worldwide. Besides our universal TSG Lift upgrade conversion package for repair and modernization, we furthermore offer with our TSG Lift Vario a complete door operator for new construction. In our
manufacturer overview you find the appropriate door drive for your system. If your manufacturer is not listed, please do not hesitate to contact us. We find a solution!

Most door drives for elevator doors that have to be replaced, fail suddenly and without any warning. They put the the elevator out of order and leave a big problem in a multi-storey building. The TSG lift is available from stock, so that the broken elevator can be repaired as soon as possible. Our modernization packages for cabin doors and elevators meet all current standards and safety regulations. The TSG Lift is ASME A17.7/CSA B44.7 as well as EN 81 compliant. Furthermore, fire protection according to EN 81-58 or protection against vandalism EN 81-71 are available for some versions.

We offer a variety of elevator cabin door modernization solutions that have been developed specifically for the original manufacturer. Our solutions are not only restricted to the most common elevator companies like Otis, Schindler, Kone (MAC), Thyssen (Dover) - other manufacturers are also available.

Animation: Elevator Modernization Solution for Kone, Otis, Schindler, ThyssenKrupp Elevators etc.


Benefits of TSG Lift Universal Door Operator for Elevator Car Door Modernization

High reliability
Regardless of open and close frequency, the IP54 splash-proof universal automatic door operator TSG Lift can be installed in all residential or commercial environments including companies, offices, homes, nursing homes, hospitals etc. The TSG Lift also in an explosion-proof ATEX version for the modernization of industrial plants (e.g. cement plants and cereal processing), chemical, pharmaceutical, petrochemical, water treatment plants as well as oil and gas rigs available.

Low cost
The universal door operator is very easy to install and maintain. The wiring effort has been reduced to a minimum in order to keep the installation time and the associated installation costs to modernize your elevator low. The use of a maintenance-free DC motor ensures that no further maintenance costs arise for the linear belt drive system.

Efficient technology
The encoder-controlled linear operator controls the maintenance-free DC motor with direct drive and ensures that the doors open and close safely, quickly and quietly. The programmable microprocessor enables a variety of custom settings and allows you to set the initial start-up directly on the device. The door opening and closing operations can be adjusted independently and once set up, the door drive is running in automatic mode.

In addition, the door operator has an integrated obstacle detection and automatic reversing. This ensures that the door operator triggers an immediate change of direction, if the door encounters an obstacle in the doorway, to prevent irreversible damage.

Features in short

  • State-of-the-art closed-loop door operator system
  • Available for modernization and repair or new construction
  • Noticeable performance improvement as well as smooth and quite door operation
  • Highest reliability reduces downtime
  • Easy customization - no special tools required
  • Safety settings maintained, even after power outage
  • Widest adaptability to more than 300 door systems on the market
  • Greatest connectivity to elevator control systems worldwide
  • Improved performance compared to old-fashioned harmonic crank-arm door operator
  • ASME A17.7/CSA B44.7 as well as EN 81 compliant
  • Meet the kinetic energy requirements of ASME A17.1-2000+ and EN 81
  • Openings up to 4 meter+ (160 inch+)
  • Adjusts for wind pressure and lobby door mass
  • Supported door mass of 400kg+ (~880lbs) - 1000kg (~2200lbs) coming soon
  • Maintenance-free DC motor - reduced power consumption
  • Solid state controller included
  • Built-in encoder and motor speed control
  • Integrated short-circuit-protection
  • Controller mountable on cartop
  • Independent belt adjustments possible
  • No need for mechanical limit switches
  • Cams, relays and restrictors are not required
  • Integrated hold close and hold open torque
  • IP54 splash-proof and explosion-proof ATEX version available
  • Reduced installation time
  • Available from stock - Next day delivery available

Comparison - Harmonic vs. Linear Door Operator

Harmonic Door Operator Linear Door Operator Benefit
Open Loop Closed Loop Software monitors position and adjusts automatically to ensure consistent performance
Carbon brush DC motor Maintenance-free DC motor Cleaner operation, eliminating carbon-brush dust
Long Crank Arms and mechanical linkages Direct Belt Drive Allows easier installation and maintenance
Manual set-up and adjustment Self-learning motion profile adjustment Automatically adjusts and recalibrates
About 60-65 dBA About 50 dBA or less Enhanced passenger comfort

Tailor-Made Elevator Door Operators for Schindler QKS Modernization

The vast majority of elevator door drives in the market can be replaced by our universal TSG Lift modernization packages. However, there are elevator doors for which a customized modernization is more appropriate, such as Schindler doors.

In this context the Schindler QKS drive series is to emphasize. Cabin door operators for Schindler elevators can be found in our product catalog: Schindler QKS catalogue


Elevator Doors: The Different Types

Generally, elevator doors can be divided into car and hoistway door. The power operated electric sliding door is the most common type of doors in the elevator industry. The sliding doors are used where the lift shaft offers enough space to move the door leaves to one side. Sliding doors for elevators are available in left-/ right and central opening.

A multi-part telescopic elevator door is installed in an extra-wide doorway having a rather narrow slot. The drawback with telescopic doors is that a large installation depth is required.

Automatic sliding doors are now almost exclusively power operated, which means that for opening and closing the sliding door an electric car drive (electric motor) must be used. By using a skate on the car door, the movement of the car door operator is transmitted 1:1 to the hoistway doors (landing doors).

Solutions for the modernization of elevator & lift doors

cabine door left opening
cabine door right opening
cabine door telescope left opening
cabine door telescope right opening
cabine door center opening
cabine door telescope center opening
cabine door vertical center opening with counterweight
cabine door vertical center opening
cabine door center opening with 2 door drives

Calibrating TSG Lift Door Operator for Elevators

The TSG Lift door operator has to be calibrated manually or by using the TSG Lift WebInterface. Here is how it works.

Closed-Loop Door Operator Control System

The TSG Lift Closed-Loop Door Operator Control System is the most recent technology, which continually monitors the speed and position of the elevator doors, and compares this data to predefined opening and closing profiles. This constant monitoring of both, position and velocity is "closing the loop" on the system.

Smooth, controlled performance - Our door operator is self-controlling, thus wind loads and changes in temperature, humidity, rain or even minor debris will not inhibit the doors. For example, if the TSG Lift senses a slowdown due to heavy doors or windy lobby, the system instantly adjusts the motor to compensate. You will see smooth, controlled performance on every door. TSG Lift controls more than just door speed, it controls the entire motion profile including acceleration, deceleration and stopping the doors. In this sense, all things the doors have to do to close, open or automatically reverse.

Reliability - TSG Lift closed-loop control varies force as required to drive the doors, little debris in the track will not cause the doors to hold or slow down. While it prevents slamming of the doors due to wind or other influencing environmental conditions, door components will be subject to less wear and tear.

Safety - A protection feature appertaining to the closed-loop control system is continuously monitoring the kinetic energy during door movement. This ensures a steady door-closing pace during door movement.

The TSG Lift provides smooth and reliable operation on all doors, regardless of the doors weight. The result is the same fantastic operation on every set of doors – light-duty or heavy-duty doors. It is a great change from the manual ‘single setting’ of older-style door operators.

TSG Lift Web Interface
TSG Lift Web Interface

TSG Lift Web Interface

Using the user-friendly control and parameterization TSG Lift Web Interface you manage fast and easy to parameterize your door for the first time.

TSG Lift - parameterizing via TSG Lift Webinterface
TSG Lift - parameterizing via TSG Lift Webinterface
TSG Lift - smooth drive curve (closed-loop) door-open in [m/s]
TSG Lift - smooth drive curve (closed-loop) door-opening in [m/s]
TSG Lift - smooth drive curve (closed-loop) door-close in [m/s]
TSG Lift - smooth drive curve (closed-loop) door-closing in [m/s]