Replacing DJI Agras propellers – step-by-step guide (T25P, T50, T55, T70P, T100)
Published: 12.11.2026
Replacing DJI Agras propellers takes a few minutes, but getting the CW/CCW direction wrong or not tightening properly can end in a failure. Here is a step-by-step guide using the Agras T50 and T40 as examples – the procedure is similar for the T25P, T55, T70P and T100 (differences are described below).
Before you start
- Drone powered off, battery removed – never work on a powered drone.
- Prepare: new propellers of the correct type, a hex key, a torque wrench, threadlocker (medium-strength, blue) and a clean cloth.
- The Agras T40/T50 has a coaxial layout: each arm carries upper and lower propellers. A full set is 16 blades: 8 lower (4 CW + 4 CCW) and 8 upper (4 CW + 4 CCW) [1].
CW and CCW – the most common mistake
- The propellers turn in opposite directions to balance torque and keep the flight stable [2].
- Each propeller is marked – fit it to the motor with the same marking [3].
- Never fit them by eye; always check the marking and the motor position [2].
- Upper and lower blades are different parts (different part numbers) – do not swap them [4].
Replacement – step by step
- Unfold the arm and lock it in place.
- Undo the bolts securing the blade, then remove the blade and washer.
- Clean the seat of dirt and liquid residue – contamination stops the propeller from seating properly [2].
- Check the washer and adapter – replace them if worn.
- Fit the new propeller according to the CW/CCW marking and the upper/lower position.
- Apply threadlocker and tighten the bolts with a torque wrench to the torque given in the model's manual (for the T50, service sources quote around 17 in-lb ≈ 1.9 Nm) [5].
- After a few flights, check and re-tighten [5].
- Replace both blades on the given rotor.
- Test flight in hover – check for vibration and unusual noise.
What about other models – T25P, T55, T70P, T100?
Replacement looks very similar across all DJI Agras drones: drone switched off and battery removed, CW/CCW marking matching the motor, clean socket, thread-locking adhesive and tightening with a torque wrench. Propeller size, part numbers and tightening torque differ – always take these from the manual for your model.
| Model | What is the same | What to watch for |
|---|---|---|
| T25P / T25 | the CW/CCW rule, the order of steps, thread-locking adhesive, a torque wrench | smaller propellers and different part numbers – they do not fit the T50 |
| T40 / T50 | as in the manual above | coaxial layout – upper and lower blades are different parts |
| T55 | same procedure | its own propellers and tightening torque from the T55 manual |
| T70P / T100 | same procedure | larger, heavier propellers – stick strictly to the torque in the manual, and always fit blades in sets for the given rotor |
When to replace a propeller
Immediately if it is cracked, bent, delaminated or chipped [2]. Also when:
- vibration appears or a propulsion system warning is displayed,
- the leading edge is worn (sand, dust, granules),
- after contact with a branch, a crop canopy or another obstacle.
According to service sources, DJI recommends replacing propeller screws and motor mounts after 700 flight hours – check the maintenance table in the manual for your model [5]. For the T55, T70P and T100, use the figures in the manual for the given model.
What not to do
- Do not use replacements of unknown origin – an unbalanced propeller damages the motor bearings.
- Do not over-tighten without a torque wrench.
- Do not glue or sand damaged blades.
New DJI Agras propellers – available on request from Agrodron
We can supply original DJI propellers for the Agras T50, T40, T25 and T20P (upper and lower, CW and CCW), in sets and pairs. We can supply or source any part you need for your drone – including propellers for the T25P, T55, T70P and T100.
- any part for DJI Agras – propellers, motors, pumps, nozzles, batteries, chargers – supplied on request,
- selection by model and part number,
- delivery arranged on request,
- replacement during a service of your drone.
CTA: Request propellers from Agrodron or arrange a replacement during a service – message us on WhatsApp.
Tightening torque and procedure may differ between models – always follow the operator's manual for your drone.
FAQ – frequently asked questions
How do I tell a CW propeller from a CCW one?
Each propeller is marked – fit it to the motor with the same marking.
Do propellers have to be replaced in pairs?
Yes – replace both blades of a given rotor.
Are the propellers on the T100 replaced in the same way as on the T50?
Yes, the procedure is very similar. The propeller size, part numbers and tightening torque differ – check them in the T100 manual.
Where can I get replacement DJI Agras propellers?
Agrodron can supply propellers for the T50, T40, T25 and T20P on request.
Sources
- Maverick Drone – DJI Agras T40/T50 Propeller Full Set
- Ares Acres – DJI Agras Agricultural Drone Basics: CW vs CCW
- Kings Hobby – DJI Agras propeller replacement
- United UAV – DJI Agras T50 Propellers (part numbers)
- AgriSpray Drones – Propulsion System Screw Inspection, Agras T50
Accessed: 15 October 2026.
Request a quote