EPF Hobbies Mercury 120mm 850KV-CCW 12S

$569.99 $424.99

Item #: EPF-D120101
Manufacturer: EPF Hobby
Manufacturer’s Product Number: EPF-D120101
Condition: New

In stock


This Mercury 120mm Metal EDF unit is a cutting edge of EDF design. All Mercury 120mm Metal EDF parts are manufactured with precision CNC machine tools to maintain strict tolerances while enables a high level of accuracy in the manufacturing process.

This EDF is milled from aircraft grade high tensile Aluminum alloy to improve performance and also to help reduce deformity of the duct during installation. Moreover, the aluminum alloy structure acts as a heat sink for improved heat dissipation. There are 12 fan blades together with the motor are also milled from high tensile aluminum alloy as a single assembly. In addition, the fan-motor assembly has a cooling fan incorporated into it, as well as dynamically balanced at the factory, which means a time saver and less frustration for modeler from not having to spend hours balancing the fan unit and the motor.

This EDF unit has been tested in the wind-tunnel using Computer Aided Evaluation and found to reduce high speed deformation by 90%, as compared to a conventional ABS or plastic fan. The Mercury 120mm Metal EDF incorporates an innovative 9-bearing system to reduce resonance vibration by 90%. This vibration is common to all EDF designs, which is caused by both the fan and motor vibration, which causes the blade tips to rub against the shroud of the duct.

Fan Jets USA only recommends that this edf unit is run on a 12S.  Running this edf unit on a anything else is not recommended.

The fan unit features a newly designed housing in the front which allows more air intake producing better thrust.  There is also more airflow designed to go through the motor keeping it cooler compared to competitor models.



  1. Turbo Inner cooling System let Motor down to room temperature within 15~20 seconds half throttle.
  2. 60,000RPM High Speed Dynamic Motor and Fan balance adjustment
  3. High Precision CNC Cutting Rotor and Fan.
  4. The 12 fan blade is the first in the world to use high tensile aluminum alloy.
  5. Full Alloy Design
  6. Optimized Air Flow.


  1. Motor: 50mm 850kv High Performance EDF Brush less
  2. EDF Unit:120mm
  3. Battery: 44.4v (12s Max)
  4. AMP Draw: 118 amp (Max)
  5. Watts: 5239 watts (Max)
  6. Motor: 8 pole
  7. Thrust: Max.Thrust: 8.1kg/ 17.8 lbs /// Continuous Thrust: 7.4kg/ 16.3 lbs (Estimated)
  8. ESC: 120-200A (Max)
  9. Unit Weight: 675g/ 1.5lbs

WARNING: Operating the motor outside of the specifications listed above can either damage the motor, battery or esc. It is important that these components are set up properly. Failure to do so can void the warranty. It is strongly encouraged to use a Watt Meter to test the watt and amp performance when setting up a new system. If the output is above the factory recommended specs, then it needs to be adjusted by the esc. The timing and throttle settings on the esc can help to set the appropriate levels.

Insurance Note:  Fan Jets USA recommends the purchase of shipping insurance. If insurance is not purchased and the package is lost or damaged, the most that can be claimed with the USPS and awarded to the purchaser (shipment recipient) is $50.00.  Fan Jets USA is not responsible for reimbursing the purchaser the difference of an order of any amount.  Shipping charges are not included in an insurance claim per USPS guidelines.

CA Residents: WARNING: Cancer and Reproductive Harm –

Additional information

Weight 2.2 lbs
Dimensions 11 × 6.5 × 6.5 in

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