Knowing the exact difference between gearless and gearless elevators is vital for building managers, builders and facility engineers. Choosing the wrong type of elevator can increase the cost of repairs, high energy consumption and reduce the life of the system. Asansorino Technical Services in Rasht, with expertise in installing and servicing all types of modern elevators, offers a complete guide for choosing between two models, GRL and gearbox.
This article was written with the aim of comprehensively examining the technical, economic and practical differences between these two types of elevators to help users choose the right system.
Introducing the Grails elevator
Gearless elevator is one of the important innovations of the vertical transportation industry. In this type of elevator, the motor is directly connected to the main shaft and there is no need for a gearbox to transmit power. Eliminating the gearbox increases efficiency, reduces noise and occupies less space.
Asansurino has been active in the installation and operation of elevators in the north of the country for many years and uses permanent magnet synchronous motor without gearbox, which have high energy efficiency and smooth operation.
Introducing the gearbox elevator
In the Geared Elevator, the transmission of power between the motor and the main shaft is done by the gearbox. This system is more classic and is still widely used in Iran due to the availability of parts and simplicity of service.
In the gearbox elevator, the motor is installed on a special base and the generated energy is transferred to the cabin through the gearbox and cables. Although this model is louder and takes up more space, it is still an economical choice in buildings with moderate traffic.
The difference between a Grails elevator and a gearbox in terms of technical structure
To better understand the difference between a gearless elevator and a gearbox, we must compare their mechanical and electrical components.
1. Power transmission system
In the gearbox elevator, the motor is connected to the shaft with gears (gearbox). While in the Grells elevator, this connection is direct and the gearbox is removed.
2. Engine type
Gerless elevator uses permanent magnet synchronous motor (PMSM) which has more accurate speed control and higher efficiency. The elevator has a three-phase induction motor, which requires more power and space.
3. The need for an engine room
One of the obvious differences between the Gerless elevator and the gearbox is the removal of the engine room in the Gerless model. In Greless elevators, the motor is usually installed inside the well and does not need a separate chamber. This feature saves space and reduces construction costs.
4. Sound and vibration
Gearless elevators produce very little noise due to the absence of mechanical power transmission parts (gears). On the other hand, the transmission elevator vibrates more when moving and stopping.
5. Electricity consumption
Grless model with permanent magnet motor reduces energy consumption by 40%, while the gearbox type requires more energy for the gearbox and friction.
The difference between Grails and Gearbox elevators in terms of installation and maintenance
Easier installation in the grillless model
In modern projects, the grillless model is the preferred choice of contractors due to the elimination of the engine room and faster installation. The team of Elevator technical services has implemented several projects of installation of Gerless elevators in newly built complexes in Rasht and managed to reduce the installation time by 30%.
Maintenance cost
Gearbox elevator needs gearbox oil service and regular inspection of mechanical parts. On the other hand, the Girlless model does not have oil and gears and has a lower monthly service fee.
Durability and useful life
The working life of the Grells engine is longer than the gearbox model, but it has a higher initial purchase cost.
The difference in terms of use and performance
For low-rise buildings
In four to six-story buildings, a gearbox elevator is a cost-effective option. For this reason, Asansorino still uses the gearbox model in some small residential projects.
For tall buildings
In tall and modern structures, the Grells elevator performs better due to its higher efficiency and higher speed. The cabin moves more easily and the stops are more precise.
For renovation projects
In old buildings where the engine room space is limited, it is possible to install a Grails elevator without the need for structural changes. This is the reason why Elevator Technical Services suggests the Gerles model for renovation projects in northern cities.
The difference between Grails and Gearbox elevators in terms of price
Although the final price in each project depends on the capacity, weight of the cabin and the brand of the equipment, but on average:
- The cost of buying and installing a Gherless elevator is about 20 to 30% higher than the gearbox model.
- Instead, the cost of periodic service, repair and electricity consumption is lower in the Gherless model.
As a result, although the initial capital is higher, it has a better return on investment in the long term.
The advantages of the Grells elevator
benefits
- Lower energy consumption
- Silentness
- No need for an engine room
- Long lifespan
- Beautiful and modern appearance
Advantages of gearbox elevator
benefits
- Lower price
- Easier installation for short buildings
- Availability of spare parts
- Ease of repairs
The role of climatic conditions in choosing the type of elevator
In cities with high humidity like Rasht, the Grills model is more durable due to the removal of oil and sensitive mechanical parts. Gear oil in old systems may lose its quality due to moisture. That's why Asansorino's technical services in projects in the north of the country usually suggest the Gherless model to reduce the need for repairs.
Safety level in elevators and gearboxes
Both systems have a high level of safety if they are installed correctly, but there are also differences:
- In the Gearless system, due to the digital control of the engine, the cab stops very smoothly and without shock.
- In the gearbox system, there is a possibility of a slight slip when stopping.
Asansurino increases the safety level of both models by using the dashboard with emergency rescue system (ARD).
The role of cabin design in choosing an elevator model
In the design stage, the type of engine and its position affect the overall design of the cabin. Since there is no motor room in the Gherles elevator, less roof is required and the architecture of the building becomes more beautiful.
Assansorino, in collaboration with interior designers, offers special cabin models that are perfectly coordinated with the Grells elevator and give a modern look to the interior of the building.
The future of the elevator industry and the position of the girlless model
With the development of green and energy-saving technologies, the global market is moving towards grillless elevators. Permanent magnet motors and intelligent speed control have made these models the most popular option for smart buildings.
Asansorino Technical Services is one of the pioneers in the installation of elevators in the north of the country, using specialized training and cooperation with international reputable brands.
Summary
Finally, the difference between Grells elevator and gearbox can be summarized in a few sections: the Grells model is a more advanced option, quiet, low consumption and suitable for modern buildings; While the gearbox model is more suitable for limited projects with an average budget.
Choosing each one should be done based on the height of the building, available space, climatic conditions and budget.
Asansorino technical service group in Rasht is ready to provide consultation, design, installation and service of all types of elevators and gearboxes with today's standards. To receive a free technical visit and a detailed technical proposal, you can contact the experts of this center to experience the best choice for your building.
