Machine Room Less Elevators

2. MRL Elevator Specifications and Selection

Our published MRL models cover passenger and freight applications with different load requirements and drive configurations.

For passenger elevator selection, common industry reference options include:

These are common industry selection references, not a confirmed list of available configurations for every Dongao model. Our published DKW1000-VF passenger elevator has a rated load of 1,000 kg.

For a project-specific selection, the main dimensions and operating requirements include:

• Number of floors and stops.
• Total travel height.
• Cabin width, depth and height.
• Shaft width and depth.
• Overhead height and pit depth.
• Entrance opening dimensions.
• Door arrangement.

These details determine how the elevator fits the building and should be checked against the project drawings.

For freight applications, our two published configurations provide distinct options. The DHW2000-VF uses a disc traction machine, while the DY2000/0.5-VF uses a hydraulic cylinder drive. Their equipment layouts and installation requirements are different, so selection should reflect the building arrangement and cargo transportation requirements.

3. Product Structures and Practical Benefits

Gearless MRL Passenger Elevators

Our gearless MRL passenger elevator configuration uses a permanent magnet synchronous traction motor, with the drive and control equipment installed inside the shaft. The control cabinet is positioned along the shaft wall, with access arranged near the shaft door.

This layout removes the need for a separate machine room while making equipment positioning and maintenance access important considerations during shaft planning.

The published passenger configuration also includes:

• Remote monitoring.
• Fault warning.
• Manual rescue arrangements for power failures.
• A standby setting that switches off cabin lighting and the display screen when the elevator is not in use.

Remote monitoring and fault warning provide maintenance personnel with operating information, while the manual rescue arrangement addresses emergency recovery during power failures.

MRL Traction Freight Elevators

Our DHW2000-VF MRL traction freight elevator has a rated load of 2,000 kg and uses a disc traction machine.

Its control box is installed on the lower-floor wall, and the product configuration includes a manual rescue device. This arrangement is intended for freight transportation in warehouses, factories and industrial buildings.

Hydraulic MRL Freight Elevators

Our DY2000/0.5-VF hydraulic MRL freight elevator has a rated load of 2,000 kg and a rated speed of 0.5 m/s.

It uses a hydraulic cylinder drive, with the pumping station positioned at a lower level and separated from the elevator cabin. The pumping station also has sound insulation.

This configuration is intended for freight transportation in low-rise warehouses, workshops and industrial buildings.

4. Customization for Building and Installation Requirements

We can prepare MRL elevator configurations according to project drawings and building dimensions. Our published customization options cover specific cabin, entrance and interior requirements.

Passenger Elevator Customization

• Cabin width and depth.
• Overall cabin dimensions.
• Entrance opening dimensions.
• Cabin wall finishes.
• Cabin floor finishes.
• Operating button panel layout.

Hydraulic Freight Elevator Customization

• Cabin width and depth.
• Clear entrance dimensions.
• Entrance arrangement.
• Cabin wall finishes.
• Cabin floor finishes.
• Operating panel layout.

These options allow cabin dimensions, entrance positions and interior finishes to be matched to the intended passenger or freight application.

Before production, shaft width and depth, overhead height, pit depth and entrance positions need to be reviewed against the building drawings.

5. Manufacturing and Quality Control

We are Ningbo Dongao Elevator Co., Ltd., an elevator manufacturer established in 2014. Our manufacturing facilities cover more than 50,000 m², including 49,000 m² of production workshop and warehouse space.

Our factory operates:

• 3 standard workshops.
• 6 automated production lines.
• Reported annual production capacity of 20,000 units.

Our technical team includes 26 engineering professionals, of whom 12 hold intermediate-level or higher professional qualifications. We also have a provincial-level research and development center and a CNAS-accredited laboratory.

Our ISO 9001-certified quality management system is supported by digital quality traceability covering incoming raw materials through finished-product shipment.

For our MRL passenger elevator and hydraulic freight elevator products, our published manufacturing information specifies 100% inspection before factory delivery.

Our elevator manufacturing range also includes:

• Passenger elevators.
• Freight elevators.
• Villa elevators.
• Residential elevators.
• Hospital elevators.
• Panoramic elevators.
• Heavy-duty elevators.

We export our elevator products to 32 countries and regions.

6. Supply and Technical Support

We provide elevator product development, manufacturing, installation, modernization, maintenance and spare parts services.

Our published MRL passenger elevator purchasing terms include:

For customized hydraulic freight elevators, the published delivery reference is 1–2 months.

These purchasing terms provide a reference for planning order quantities, payment arrangements and delivery schedules.

Installation, modernization, maintenance and spare parts are also part of our wider elevator business. Service arrangements depend on the individual project and destination.

7. Request a Quote for Machine Room Less Elevators

We welcome inquiries for MRL passenger and freight elevators from international importers, wholesalers, distributors and project partners.

To help us identify the appropriate configuration and prepare a quotation, please send your elevator type, required rated load, number of floors, shaft dimensions and order quantity.

If available, also include the rated speed, travel height, overhead height, pit depth, cabin requirements and building drawings.

Contact Ningbo Dongao Elevator Co., Ltd. to discuss your MRL elevator project and request a quotation.