2025 Rosefinch Tether Power System Adapt to Dji Flycart 30
Tethered drones are unmanned aerial systems connected to ground power sources via cables, possessing prolonged hovering capabilities. These drones can conduct extended flight missions within designated areas without concerns over energy depletion, thereby enabling long-duration aerial surveillance, communication relay, and data collection operations. Such systems are particularly suitable for disaster emergency response, border patrols, security at large-scale events, and environmental monitoring, providing critical aerial support during pivotal moments.
Typical characteristics
1). Easy to operate, no need to operate during UAV flight.
2). Comprehensive input and output protection function, fault elimination and self recovery.
Fully automatic cable reel in/out function, and backup battery to activate cable reel in function in case of power cut off.
3). The air module power supply has a constant voltage output, and the backup battery has no charging or discharging or power loss phenomena.
4). The air module power supply is in stead of a original drone battery without any structural changes to the drone.
Adaptive drone
| Support flight duration |
≥ 24h |
| Support flight altitude |
100m/200m/300m, (tethered cable 110m/220m/330m, reserved safety length). |
Functional characteristics
1). Safety protection: Strong and weak current separation design, with input undervoltage, input overvoltage. Output overvoltage, output overcurrent, output short circuit, and output overheating protection functions. The input and output withstand voltage is ≥ 3000VDC, and the cable insulation layer withstand voltage is ≥ 3500VDC.
2). Data communication: Wired and wireless communication functions, remote display and control, data viewing and downloading; fiber optic communication optional.
3). Data display: The touch screen displays data and status of output voltage, output current, output power, cable reel out length, operating time, equipment temperature, total power consumption, and fault records.
4). Setting and adjustment: Support the setting and adjustment of parameters such as tension and speed for reel in&out cable, date and time, output voltage, safety meters, alarm temperature, etc. and support Chinese and English.
5). Alarm and reminder: When a fault occurs, the screen displays the fault content, and the buzzer sounds a reminder.
6). Carrying and Transportation: The box is equipped with handles and foot pads, and can be optionally equipped with a pallet components and a pull rod roller for carrying and transportation.
7). Automated winch reel: synchronously retracting and releasing cables following the takeoff and landing of the drone, automatic adjusting the tension, and backup battery to activate cable reel in function in case of power cut off.
8). 25000W/100L diesel generators is recommended.
Parameters
| Items |
Technical parameters |
| Ambient temperature |
-20~45 ºC (working), -40~65 ºC (storage) |
| Relative humidity |
10-80% RH (working), 5-90% RH (storage) |
| Altitude |
≤ 3000m |
| Tethering power module |
Input voltage |
380 ± 10% VAC, three-phase five wire system, frequency 50Hz |
| Output voltage |
600-800Vdc adjustable, factory default 800Vdc |
| Output power |
22000W (rated long-term output), ≥ 25000W (peak value ≤ 30s) |
| Retraction speed |
0-3m/s, adjustable |
| Reel in/out tension |
0-20N, adjustable |
| Interface |
Input aviation plug, cable output LP20 aviation plug, fiber optic FC port (optional) |
| Buttons and switches |
AC switch, high-voltage on/off button, cable forced take-up button, backup power switch |
| Protection |
IPx4 |
| Size |
600×570×460±0.5mm, excluding foot pads and external accessories |
| Weight |
54±0.5kg, excluding tethered cables |
| Tether cable |
Material |
Alloy lightweight high-temperature resistant aviation wire, composite fluoroplastic insulation layer, high modulus tensile aviation grade fiber woven layer |
| Optical Fiber |
Tethered cable is an optoelectronic composite cable, contains tightly wrapped single-mode fiber and can be optionally equipped with fiber optic communication |
| DC resistance |
1.6 ± 0.1 Ω, 100m@20 ºC loop |
| Tensile strength |
≥ 300kg, resistant to repeated retraction and release times ≥ 1000 |
| Insulation strength |
≥ 3500Vdc, no breakdown for 1 minute |
| Cable length |
Standard 220m, optional 110m/330m |
| Outer diameter |
6.3±0.1mm |
| Weight |
44±1g/m |
| Air module |
Input voltage |
580-810Vdc wide range input |
| Output voltage |
59Vdc ± 1%, constant stable output, supports voltage customization |
| Output power |
≥ 18000W (rated long-term output), ≥ 22000W (peak value ≥ 10s) |
| Protection function |
Input overvoltage and undervoltage protection, output overvoltage, overcurrent, short circuit, and over temperature protection |
| Isolation voltage |
≥ 3000V (Vin Vout), 1min, leakage current 5mA, no breakdown, flashover, or corona phenomenon |
| Installation method |
Replace a drone battery and install it directly by plugging and unplugging it |
| Heat dissipation method |
Built in fan for active cooling, reserved air duct for forced air cooling |
| Interface |
Input LP20 aviation plug, output XT90 |
| Protection |
IP54 |
| Size |
468 × 308 × 142 ± 0.5mm, excluding handles and connectors |
| Weight |
10.8 ± 0.2kg (replace one 11.5kg drone battery) |
Rosefinch Technology is the leading manufacturer of drone tethering power station.
Rosefinch mainly engages in the R&D, production, sales of AC-DC, DC-DC high-frequency switching power modular and the drone tether power system.The system is compatible for all multi rotor drones with MTOW 3-110kg.
These products are used and deployed by armed forces, law enforcement, civil security, and private security in over 20 countries for event protection, perimeter surveillance, border protection, radio communications, long-duration health monitoring, emergency communication, traffic management, environment inspections, scientific research and many more.
We have always adhered to independent research and development of core technologies. The air module adopts a output voltage stabilizing circuit scheme, with a wide range of input and constant voltage output, which is different from the commonly used Vicor power supply unstable voltage scheme on the market. It can ensure that the backup battery in parallel with it has no charging or discharging phenomenon, no battery capacity loss, and is only used as backup battery for landing, achieving true long-term tethering flight without battery capacity loss; The automatic cable reel in & out control adopts a difference between the reel out tension and reel in tension, and an adaptive torque transformation scheme, chieving true automatic tether cable reel in & out function without human intervention.
Certificate
Our products are qualified by CNAS and other third party testing, and also got the CE certificate from UDEM(LVD+EMC)
We have drone tether station of Dji drone,
01.DJI Mavic 3 Tethered Power System..
02.DJI M30 Tethered Power System.
03.DJI M350 Tethered Power System Ver. 2.0
04.DJI M350 Tethered Power System Ver. 1.0
05.DJI Flycart30 Tether power system
Whatever you are drone manufacturer and drone service provider,
we can customize it for your drones,it can make your drone to work for longer time.
06.600W Universal Tethered Power System
07.2000W Universal Tethered Power System
08.3000W Universal Tethered Power System Ver. 2.0
09.3000W Universal Tethering Power Station Ver. 1.0
10.6000W Universal Tethered Power System
11.12000W Universal Tethered Power Supply System
12.18000W Universal Tethered Power Supply System
Tethered Drone Lighting System
13.640W Matrix Lighting for DJI M30
14.1280W Matrix Lighting for DJI M300/M350
15.3200W Matrix Lighting for DJI Flycart30
Main Applications of Drone Tethered Power System
-Day and night missions
-Radio relay
-Crisis management
-Site protection
-Traffic surveillance
-Large-scale events security
-Forest surveillance
-Industry monitoring
-Air-quality monitoring
FAQ
Q1: Do you support OEM/ODM?
A1: Yes. We can print your logo on the product.
Q2: About samples.
A2: Under normal circumstances, samples will be ready within 7 days, and 10-20 days for OEM/ODM orders. Sample fee and shipping will be charged.
Q3: What is the delivery time?
A3: For regular orders, we can ship within 15 days, for OEM/ODM, we can ship within 25-45 days (depending on the quantity). In the event of delays, we will notify you in advance of the status and resolution.
Q4: What is the minimum order quantity?
A4: There is no MOQ for wholesale (1 piece accepted), including OEM/ODM.
Q5: Can you reduce the shipping cost?
A5: When calculating the shipping cost for you, we always choose the cheapest and safest express. Although we have partnerships with shipping companies, we can't keep costs down because it's not us who get paid. If you think it's expensive for you. You can always make your own choice.
SALES AND SERVICE NETWORK
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