Ampflow A28-400-F48 3" High Performance 48V Motor

The A28-400-F48 is designed to give the highest possible performance from a brushed DC motor.

Using rare-earth neodymium magnets and with a nominal voltage of 48V, these motors have a massive peak power of 9.1hp making them the ultimate choice for heavyweight robotics, motorised vehicles and automation applications. They are fitted with a fan and are drilled with vent holes to allow flow-through cooling which allows longer duty cycles and even higher power outputs.

The motor is mounted using 8-32 thread screws (not included).

A 9-tooth sprocket and key, order code 37-0289, suitable for the motor shaft, is available separately.

Replacement brushes are available separately.

• Diameter: 77mm (3in.)
• Length: 200mm (7.8 in.)
• Peak power: 6.8kW (9.1hp)
• Stall torque: 51Nm (7260 oz.-in.)*
• Efficiency: 85%
• Nominal voltage: 48V
• RPM @ 48V: 6400
• Shaft diameter: 12.7mm (1/2in.)
• Shaft length: 50.8mm (2in.)
• Key-way: 3.175mm (1/8in.)
• Magnet type: neodymium
• No-load current: 4.4A
• Resistance: 0.066Ω
• Weight: 3.3kg (7.3lb)
• Ampflow type A28-400-F48

* Note: The current required to reach this torque is far outside the safe operating limits of the motor. This figure is theoretical and should be used for comparative purposes only.

Type	Motor
Shaft Diameter	12.7mm
RPM	6400rpm
No Load Current	4.4A
Stall Torque	51Nm
Voltage Rating	48V