ClassA Motor
BLDC MotorTopband BL80 inner-rotor BLDC · Ø80 mm

BL8042

508.9 W, 24 V Ø80 mm BLDC motor from Topband Motor: 1.35 N·m rated at 3600 rpm.

Manufacturer datasheet: Topband Motor · BL8042 ↗ (checked 2026-10-18)Maker profile & contacts →

Figures are copied from the maker’s published datasheet; curves are calculated from them. Confirm with the manufacturer before ordering. Not stated on the datasheet, estimated from it: torque constant (fitted to the rated point), resistance (fitted to the rated point), inductance, rotor inertia, insulation class, IP rating.

Applications:AutomotiveHome Appliances
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How this motor is made

Full manufacturing overview: 57 mm Inner-rotor BLDC Motor →

Ø80 mm frame; built with the same process as the 57 mm inner-rotor reference series.

Assembly steps
11
Equipment types
14
BOM lines
13
PRD suppliers
88
  1. 1. Lamination stamping & interlocking
  2. 2. Stator insulation
  3. 3. Winding
  4. 4. Terminal connection
  5. 5. Stator in-process test
  6. 6. Impregnation & curing
  7. 7. Rotor assembly
  8. 8. Magnetizing
  9. 9. Rotor balancing
  10. 10. Final assembly
  11. 11. End-of-line test

Export certification: Low-voltage motor without electronics

Rated power
509 W
Rated torque
1.35 N·m
Rated speed
3,600 rpm
Rated efficiency
81.6 %

Performance curves

Right axis:
01,0002,0003,0004,0005,0000204060801000246810Torque (N·m)Speed (rpm)Efficiency (%)Rated point
SpeedEfficiency (right axis)

Calculated with the linear DC-motor model (constant 24 V supply, ignoring resistance rise with temperature).

Full specifications

General

Motor type
BLDC Motor
Series
Topband BL80 inner-rotor BLDC
Frame / flange
Ø80 mm

Rated Values

Rated voltage
24 V
Rated power
509 W
Rated torque
1.35 N·m
Rated speed
3,600 rpm
Rated current
26 A

Performance

Stall torque
8.96 N·m
No-load speed
4,238 rpm
Rated efficiency
81.6 %
Peak efficiency
85.9 %

Electrical

Torque constant Kt
0.0538 N·m/A
Back-EMF constant Ke
5.63 V/krpm
Resistance
0.143 Ω
Inductance
0.215 mH
No-load current
0.9 A
Stall current
168 A
Electrical time constant
1.5 ms
Mechanical time constant
4 ms

Mechanical

Rotor inertia
807 g·cm²
Body length
130 mm
Shaft diameter
10 mm
Weight
2.03 kg
Power density
251 W/kg
Insulation class
B
Protection
IP40

Compatible drivers

All drivers →

Drivers whose supply voltage covers this motor and whose continuous current is at least its rated current; drivers from the same maker first. Confirm Hall/encoder type and settings with the maker.

ModelMakerMotor typeSupplyCont. / peak currentFeedback
DBL-2450HMayi MotorBLDC24–24 V DC25 AHall sensors
ZM-BL24Z30SZemingBLDC18–32 V DC30 AHall sensors, Sensorless
DBL-30RSMayi MotorBLDC18–60 V DC30 AHall sensors
BD30L□□1□Stonker MotorBLDC24–48 V DC30 AHall sensors
BD30L□□2□Stonker MotorBLDC12–60 V DC30 ASensorless
ZLAC8030LZLTECHServo, BLDC24–48 V DC30 A / 60 AIncremental encoder, Hall sensors

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