Ceres 8

SkyRC Ceres 8 is a motor and ESC propulsion set for agricultural spraying UAV integration. It pairs an M8120 motor with a 12S 80A FOC controller, incorporating protected motor components, dedicated thrust-bearing support and active motor cooling. Integration provisions cover propeller mounting patterns, bullet connectors and a compact ESC enclosure.

SKYRCdrone motor

Maximum thrust: Up to 14.3 kg.

Product overview

SkyRC Ceres 8 combines the M8120 motor with a 12S 80A FOC ESC for agricultural spraying propulsion. The supplied configuration identifies motor SK-400027 and ESC SK-300073. Its mechanical architecture integrates the propeller mounting face into a flanged main shaft, with steel mounting holes. Two deep-groove ball bearings handle radial loads while a separate flat thrust bearing carries axial propeller thrust. Waterproof bearings, shaft protection, treated windings and plated motor components address exposure to moisture and corrosion.

Installation provisions include three Ø4 mm gold bullet connectors, several mounting-hole patterns and support for multiple commercially available 30-inch propellers; the mounting specifications also list 28- and 29-inch straight propellers. The ESC occupies 86 × 44 × 20.5 mm and weighs 134 g. It accepts 6–12S LiPo input, with 12S recommended. Maximum thrust reaches up to 14.3 kg with 12S LiPo at sea level. Both components have a -20°C to 65°C operating range and 0%–75% operating humidity; ESC abnormal-voltage protection activates below 21 V or above 55 V.

Motors & ESCs

Specifications

Specification	Value & conditions
Product and supplied configuration	SkyRC Ceres 8 motor and ESC propulsion set; motor SK-400027 and ESC SK-300073.
Intended application	The M8120 motor is designed for agricultural spraying.
Motor environmental protection	NSK waterproof bearings, waterproof shaft structure, corrosion-resistant enamelled wire, secondary vacuum varnish impregnation, plated stator core, and nickel–copper–nickel triple plating on rotor magnets.
Bearing architecture	Two deep-groove ball bearings carry radial loads; one flat thrust bearing carries axial propeller thrust.
Propeller mounting architecture	Flanged main shaft with an integral propeller mounting face and steel propeller mounting holes.
Cooling architecture	Layered ESC power-board construction, copper heat-transfer plates, a wave-grooved heatsink, and a motor rotor centrifugal fan.
Propeller integration	Supports multiple commercially available 30-inch propellers.
Maximum thrust	Up to 14.3 kg.12S LiPo at sea level.
Motor maximum current	52 A.10S.
Motor maximum power	2550 W.
Motor output terminals	Three Ø4 mm gold bullet connectors.
Propeller sizes and mounting-hole patterns	28-, 29-, and 30-inch straight propellers; listed mounting-hole patterns: 4×M3–Ø20 mm, 4×M3–Ø25 mm, 4×M3–Ø31 mm, 4×M3–Ø33 mm, and 4×M4–Ø20 mm.
Motor operating temperature	-20°C to 65°C.
Motor operating humidity	0%–75%.
Motor storage temperature	-10°C to 70°C.
Motor storage humidity	0%–75%.
ESC maximum input voltage	55 VDC.
ESC maximum charging current	80 A.
ESC operating voltage range	6–12S LiPo.
ESC recommended input	12S LiPo.
ESC instantaneous current	100 A.
ESC quiescent current	Maximum 30 mA.
ESC drive method	Sinusoidal field-oriented control (FOC).
ESC environmental protection	Waterproof nano-coated PCBA and corrosion-resistant enclosure.
ESC abnormal-voltage protection	An alarm activates abnormal-voltage protection.Voltage below 21 V or above 55 V.
ESC dimensions	86 × 44 × 20.5 mm.
ESC weight	134 g.
ESC operating environment	Temperature: -20°C to 65°C; humidity: 0%–75%.
ESC storage environment	Temperature: -10°C to 70°C; humidity: 0%–75%.
Supplied configuration	SkyRC Ceres 8 motor and ESC propulsion set: motor SK-400027 and ESC SK-300073.
Motor protection	NSK waterproof bearings, waterproof shaft construction, corrosion-resistant enamelled wire, secondary vacuum varnish impregnation, plated stator core, and nickel–copper–nickel triple plating on rotor magnets.
Bearing arrangement	Two deep-groove ball bearings carry radial loads; one flat thrust bearing carries axial propeller thrust.
Shaft and propeller mounting	Flanged main shaft with an integral propeller mounting face and steel propeller mounting holes.
Cooling construction	Layered ESC power-board construction, copper heat-transfer plates, a wave-grooved heatsink, and a centrifugal fan in the motor rotor.
Propeller sizes and mounting patterns	28-, 29-, and 30-inch straight propellers; listed mounting patterns: 4×M3–Ø20 mm, 4×M3–Ø25 mm, 4×M3–Ø31 mm, 4×M3–Ø33 mm, and 4×M4–Ø20 mm.
ESC protection construction	Waterproof nano-coated PCBA and corrosion-resistant enclosure.