EMAX Pro 2812

What you get for $29.99

• 3.4 kg of pull on 6S

  On EMAX’s 25.2 V bench the 930KV pulled 3,460 g at full throttle on an Avia 9045 three-blade, drawing 61.5 A.

  Source: EMAX 930KV thrust tables

• 5.96 g/W at 470 g

  Making 470 g of thrust on 6S, the 930KV ran at 5.96 g/W on the Avia 9045.

  Source: EMAX 930KV thrust tables

• Rated for 180 °C

  EMAX uses N52UH magnets and AIW wire rated for 220 °C, and rates the motor for 180 °C, with 200 °C as its maximum.

  Source: EMAX USA product page

• 7075 aluminium, steel shaft

  A 7075 aluminium bell on a steel shaft and G1-grade bearings; EMAX’s Pro Series is made for heavy-lift drones carrying payloads.

  Source: EMAX USA product page

What to pair it with

Our reading of EMAX’s numbers, so your build matches what the motor was tested with.

ESC

EMAX rates the peak current at 62 A (930KV) and 67 A (1100KV) on 6S. On its bench the 1100KV drew 67.5 A at full throttle on an Avia 8043, and the 930KV 61.5 A on an Avia 9045. Choose an ESC rated for at least 70 A. (EMAX spec sheet, EMAX 930KV thrust tables, EMAX 1100KV thrust tables)

Props

EMAX lists 8 to 9-inch props for the 930KV and 7 to 8-inch props for the 1100KV. On 6S the 930KV pulled 2,980–3,460 g at full throttle on four props, most on 9-inch ones; the 1100KV pulled 3,150–3,450 g on two 8-inch props. (EMAX spec sheet, EMAX 930KV thrust tables, EMAX 1100KV thrust tables)

Battery

6S: EMAX rates both KVs for 3S–6S and tested them at 25.2 V. (EMAX spec sheet, EMAX 930KV thrust tables, EMAX 1100KV thrust tables)

Frame

Four M3 holes on a 19 mm circle (19 × 19 mm). (EMAX spec sheet)

Where to buy

• EMAX USAthe maker’s US store; same price for both KVs
  $29.99seen Oct 19, 2026
  Visit
• EMAXthe maker’s global store (both KVs were listed as sold out)
  $46.18seen Oct 19, 2026
  Visit
• GetFPVchoose the KV
  price on the store’s page
  Visit

Plain links, not affiliate links. Prices change; the store’s page has the current one.

Full specs

Bench data

Redrawn from EMAX’s test reports. Thrust is static pull on a bench, more than you get in flight. Power is volts × amps; efficiency is thrust divided by power.

Inside the motor

A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:

• Shaft. Steel, M5 thread, protrudes 17.5 mm; 4 mm through the bearings. (EMAX spec sheet, EMAX USA product page)
• Bell. 7075 aluminium. (EMAX USA product page)
• Magnets. N52UH neodymium magnets. (EMAX USA product page)
• Stator. The coils are wound on a stack of thin steel laminations: 28 × 12 mm (2812). (EMAX spec sheet)
• Winding. AIW enamelled copper wire rated for 220 °C. (EMAX USA product page)
• Bearings. G1-grade high-speed bearings (EMAX gives no size). (EMAX USA product page)
• Base. 4 × M3 holes on a 19 mm circle (19 × 19 mm). (EMAX spec sheet)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 930KV version reaches about these speeds; a prop loads the motor and brings it down, typically to around 70–75% of these figures at full throttle.

A 14-pole rotor has 7 pole pairs, so every turn of the shaft is 7 electrical cycles, and a six-step ESC switches the phases 42 times per turn.

About the 3D model

A generic outrunner drawn from EMAX’s published sizes: the 28 × 12 mm stator, 33.2 mm bell, 26.95 mm height, 5 mm shaft, 19 mm mounting circle and 12 teeth and 14 magnets. Anything EMAX doesn’t publish is typical for a motor this size, and the bell’s spoked top, the base and the inside are a generic design, not this motor’s. The colours are read off the maker’s product photos. There are no logos or markings: it is our drawing, not the maker’s.

Sources

1. EMAX USA: Pro Series 2812 Brushless Motor (product page, with its materials list and EMAX’s Pro Series infographics). Retrieved Oct 19, 2026.
2. EMAX: Pro Series 2812 Brushless Motor (product page on EMAX’s global store). Retrieved Oct 19, 2026.
3. EMAX: PRO-2812 spec sheet (dimension drawing and spec table for each KV; image on EMAX’s product page). Retrieved Oct 19, 2026.
4. EMAX: PRO-2812 930KV thrust tables at 25.2 V, four 8 and 9-inch three-blade props (image on EMAX’s product page). Steps of thrust, then “Max” at full throttle; EMAX’s rpm column is left out because it has no figure at full throttle.. Retrieved Oct 19, 2026.
5. EMAX: PRO-2812 1100KV thrust tables at 25.2 V, two 8-inch three-blade props (image on EMAX’s product page). Steps of thrust, then “Max” at full throttle; EMAX’s rpm column is left out because it has no figure at full throttle.. Retrieved Oct 19, 2026.