What is the lead time for orders?

The lead time is one month during peak season and within 15 workdays during the off-season.

Does the system include a backup battery?

Yes, it includes a nominal 14.4V backup battery (fully charged 16.8V, 3000mAh) to activate the cable reel in function in case of power cut off.

D Ji Matrice 400 Tethered Drone System for Building Facade Cleaning Window Cleaning with Automatic Retractable Tether Cable

Name: D Ji Matrice 400 Tethered Drone System for Building Facade Cleaning Window Cleaning with Automatic Retractable Tether Cable
Brand: Nanjing Rosefinch Technology Co., Ltd
SKU: 2244300915

Jiangsu, ChinaNanjing Rosefinch Technology Co., Ltd

US$6,488.00

1-5 Pieces

US$6,266.00

6+ Pieces

Product profile

Customization

Available

Supporting Flight Duration

≥ 24h

Cable Length

55m 110m

Ground Module Input Voltage

190-240VAC Wide Range Input

Ground Module Output Voltage

700~750VDC Adjustable

Ground Module Output Power

≥3500W (Rated Long-Time Output)

Ground Module Weight

12.5 ± 0.2kg

Air Module Input Voltage

580~810VDC Wide Range Input

Air Module Output Voltage

51.8 ± 0.5VDC, Constant Voltage Output

Air Module Output Power

3000W (Rated Long-Term Output)

Air Module Weight

850 ± 10g

Transport Package

Aviation Hard Case

Specification

720×570×380±5mm

Trademark

Rosefinch

Origin

Nanjing, China

Production Capacity

1000/Year

Key features

Continuous 24h Flight Duration: Supports flight duration of 24 hours or more with the 110m tether cable system.

High Altitude Capability: Supports flight altitude up to 100 meters with redundant cable length.

Intelligent Winch Control: Automatically manages cable reel in/out and tension, with backup battery for power cuts.

Real-Time Monitoring System: 4.3-inch touchscreen displays voltage, current, temperature, and fault logs in real time.

Multiple Safety Protections: Features AC/DC isolation, overvoltage, undervoltage, overcurrent, and short circuit protection.

Flexible Communication Options: Supports USB Type-C, RJ45, Bluetooth 5.0, and optional fiber optic wired communication.

Low Voltage Soft Start: Uses low-voltage button to start AC input, eliminating need for AC air switches for safety.

Customizable System Specs: Offers customization for product color, connector type, voltage, and output power.

Company profile

Nanjing Rosefinch Technology Co., Ltd

Jiangsu, China

Business Type: Manufacturer/FactoryAverage Response Time: ≤3.59h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company with business activities covering technology services, unmanned aerial vehicle sales, electrical and electronic equipment, software, security and fire equipment, and import/export. It holds ISO 9001 and ISO 14001 certifications and reports ODM and OEM capabilities, including products designed for several DJI drone platforms. Customization is offered from designs and samples, with full, minor, and flexible customization options. Production information indicates tether power system output of 500 pieces, while the supplier reports fewer than five quality-control staff and six to ten years of R&D engineer experience. Service procedures exist for corrective actions and customer complaints, but quality assurance status is unknown. The supplier lacks overseas showrooms, overseas agents or branches, and offline trade-show participation. Financial records are referenced for 2020–2022, but no performance values are provided, so financial credibility cannot be determined.

Supplier typeThe supplier is explicitly classified as a trading company. Its stated scope also includes technology services, equipment and electronic-product sales, software, and import/export activities, indicating a broad commercial and technical business profile rather than a clearly identified manufacturing-only entity.

CertificationsThe supplier reports holding ISO 9001 and ISO 14001 certifications. These are explicit management-system certifications and provide positive evidence for quality and environmental management, although no certification validity dates or scope details are supplied.

After-Sales capabilityThe supplier has documented procedures and records for corrective and preventive actions and customer complaints, and reports lead times within 15 working days in both peak and off-season periods. However, it has no overseas showroom, overseas agent or branch, or offline trade-show participation, and its service-capability assessment procedure lacks a written procedure, limiting evidence of broad overseas support.

R&D capabilityThe supplier explicitly offers ODM services and OEM services for popular brands, reports six to ten years of total R&D engineer experience, and lists tether-station products for multiple DJI platforms. It does not have an available SDK, so innovation capability is supported for product customization and development but not for SDK-based integration.

Production capacityThe supplier reports annual productivity of 500 tether power system pieces and describes products covering multiple tether-station capacities and drone platforms. It also reports fewer than five quality-control staff, while the supplied slices do not establish broader production scale, facility capacity, or manufacturing ownership.

Customization capabilityThe supplier explicitly supports customization from designs, customization from samples, full customization, minor customization, and flexible customization, and also offers ODM services. These statements provide direct evidence of substantial design and customization capability.

Product Q&A

Q:What is the maximum flight duration?

The system supports a flight duration of 24 hours or more, though actual endurance depends on the drone's structural strength and electrical system durability.

Q:What is the maximum flight altitude?

The system supports a flight altitude of 100 meters or more when equipped with the 110m professional tethered cable.

Q:Is the system customizable?

Yes, we offer flexible customization for product color, connector/interface type, voltage, output power, and other specifications to match your mission needs.

Q:What communication methods are supported?

The system supports wired communication via USB Type-C or RJ45, wireless Bluetooth 5.0, and optional fiber optic wired communication.

Q:How does the winch system work?

It features an intelligent automated control system that synchronizes cable reel in/out with the UAV, manages tension adaptively, and has a backup battery for cable retraction during power outages.