Emax USA

EMAX E3 2812 Brushless Motor

$35.99 USD Sold out
KV
Notes
EMAX / ECO III SERIES

EMAX ECO III 2812

A compact 12N14P external-rotor motor for 7- to 9-inch FPV aircraft, available in 920KV and 1150KV for long-range or higher-load configurations.

Built for high power that lasts.AL7075 anodized construction, steel shaft, precision bearing support, 3–6S operation and published maximum power up to 1,700W.
Framework12N14PExternal-rotor architecture
Motor size34.9 × 43.5Millimeters
Weight72 gWithout silicone wire
Propeller range7–9 inVariant dependent
EMAX ECO III 2812 brushless motor built for durable high-power FPV operation
01 / Choose Your KV

Two windings for 3S through 6S systems.

Select the winding around the complete aircraft, propeller, ESC, battery and cooling requirements.

920KV3–6S · 7–9-inch propeller · up to 1,425W published maximum power
1150KV3–6S · 7–8-inch propeller · up to 1,700W published maximum power
EMAX ECO III 2812 KV selection guide for 920KV and 1150KV
02 / Maximum Bench Results

Highest recorded thrust in each supplied test sheet.

KV Test propeller Voltage Current Thrust Power
920KV HQ 9×5×3 25 V 56.7 A 3480 g 1417.5 W
1150KV GF 8×6×3 25 V 67.3 A 3610 g 1682.5 W

Maximum-throttle bench results from the supplied EMAX load-test sheets. Results are configuration-dependent and are not guaranteed aircraft-level performance.

03 / Motor Construction

Material choices focused on durability and response.

The ECO III 2812 combines an AL7075 anodized housing, steel shaft, single-strand winding and G1-level precision bearing support in a compact external-rotor platform.

Exploded EMAX ECO III 2812 construction showing the steel shaft, anodized housing, rotor, winding and precision bearing
04 / Platform Details

Compact 2812 geometry with a 19 × 19 mm mounting pattern.

Framework 12N14P
Overall dimensions Ø34.9 × 43.5 mm
Weight 72 g without silicone wire
Propeller shaft M5 clockwise thread
Bearing shaft 5 mm
Mounting pattern 19 × 19 mm, M3
Leads 250 mm, 18 AWG silicone wire
AL7075 housingAnodized aluminum rotor construction.
Steel shaftM5 clockwise propeller thread.
Precision bearingG1-level rolling-element specification.
Two power profiles920KV and 1150KV.
EMAX ECO III 2812 compact high-performance FPV motor platform
05 / Electrical Specifications

Published limits by winding.

KV Cells Propeller Weight Idle current at 10 V Resistance Peak current Maximum power
920KV 3–6S 7–9 in 72 g 1.3 A 66 mΩ 57 A at 6S 1425 W at 6S
1150KV 3–6S 7–8 in 72 g 1.6 A 48 mΩ 68 A at 6S 1700 W at 6S

Weights exclude silicone wire.

06 / In The Box

Installation hardware included.

EMAX ECO III 2812 motor with five M3 mounting screws, aluminum M5 nylock nut, shaft screw and washer
  • 1 × ECO III 2812 motor
  • 5 × M3 × 9 mounting screws
  • 1 × aluminum M5 nylock nut
  • 1 × shaft screw
  • 1 × washer

Bench-test note: Performance values are measured test data, not guaranteed aircraft-level performance. Current draw, thrust, efficiency, RPM and temperature vary with propeller, battery voltage and sag, ESC behavior, airflow, ambient conditions and test equipment. Higher KV, larger propellers and higher voltage increase system load; select the motor winding, propeller, ESC, battery and cooling for the complete aircraft.
Product information

All parts are shipped fast from SYRACUSE, NEW YORK & some DROP SHIP ORDERS from San Diego, California. If there's an issue with something, please let us know and we will do our best make it right! SaltCtyRacingFPV, LLC dba "weBLEEDfpv.com" offers a (30) day return policy on all new unopened equipment, starting from the date the product(s) was delivered to the customer. Anything beyond (30) days of delivery will not be eligible for return. If the product(s) received have been opened, used or damaged, no return options will be offered. If the item is in brand new condition but requires to be repackaged, a (15%) restocking fee will be applied. The shipping cost for any unwanted product will not be refunded by SaltCtyRacingFPV "weBLEEDfpv.com" (It is recommended to choose a return shipping method with tracking).

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Please email at SaltCtyRacingFPV@gmail.com to contact us and initiate a return. Please contact us first before sending anything back. 

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Flight Controller / VTX Warranty Policy
 
At weBLEEDfpv, we are committed to providing high-quality products. However, due to the technical nature of flight controllers and VTX's the precision required for installation, our warranty policy for flight controllers is as follows:
 
1. No Warranty Post-Soldering: 
   Once any soldering has been performed on the flight controller / VTX's, we are no longer responsible for replacements, repairs, or refunds. The process of soldering can introduce various factors that may lead to damage, and we are unable to control or verify the conditions in which the soldering was conducted.
   
2. Pre-Soldering Inspection: 
   Before you begin soldering, we recommend carefully inspecting the flight controller  / VTX's for any potential issues. If any defects or issues are found prior to soldering, please contact us immediately for a replacement.
 
3. User Responsibility: 
   Soldering requires skill and experience, and improper techniques may result in damage to the flight controller, including but not limited to overheating or lifting solder pads. Please ensure you are confident in your soldering abilities before proceeding, as we cannot be held liable for any damages caused during installation.
 
4. Final Sale: 
   All flight controller sales are final once the product has been modified or soldered. We are unable to offer returns or exchanges on used or modified products.
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⚠️ FPV DIGITAL SYSTEM NOTICE

HDZero, Walksnail, VTX systems, and ultra-micro FPV electronics generate heat quickly while powered and require proper handling during setup and troubleshooting.

Bench setup without airflow/cooling can result in excessive heat buildup.

Once powered, configured, firmware updated, soldered, flown, or modified, products are considered used.

Manufacturer warranty may apply for BNF drones and electronic systems.

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Lithium Ion Battery No Acceptance Policy

For our lithium ion battery products, all sales are final. This means:

  • No Returns or Exchanges: Once your purchase is completed, we do not accept returns, exchanges, or cancellations.
  • Customer Responsibility: Please review all product specifications and details carefully before making your purchase.
  • Safety and Compliance: Due to safety standards and regulatory guidelines, we cannot process any post-sale modifications.

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Thank you for your understanding.

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