Overview
Our motors perform a wide variety of industrial drive tasks. Reliably and effectively. For example, our type Z cylindrical-rotor brake motors – also as brake motors – offer high drive efficiency – also in continuous duty. They are specially designed to match our gearbox range and provide for simple project engineering. Our conical-rotor brake motors with outputs of up to 55 kW are used for stopping-and-starting drives or for direct line-fed travel applications. Thanks to their unique brake principle, they are the first choice wherever demanding requirements have to be met by the brake


Perfectly engineered braking performance
- motor output up to 45 kW
- inverter-fed drives for travel applications, line-fed travel and continuous operation
- specially designed to match our range of gearboxes
- simple project engineering
- high drive efficiency
For both motor output and braking capacity: you benefit from a range of outstanding advantages with our Z cylindrical-rotor motors.
Strong motor output
- Motor output up to 45 kW
- 2, 4, 6 or 8 poles
- Two-speed pole-changing motors
- ZBA/ZNA for travel applications with inverters
- ZBF for line-fed travel applications
- ZBE/ZNE for continuous duty in energy efficiency class IE2
Customised braking performance
- Motors with or without a brake
- Specified brake torques from 0.9 to 680 Nm
- Two brake sizes available for each motor frame size
- ZB cylindrical-rotor motors fitted with disc brakes (held by springs when no voltage is applied)
- Finely graded brake torques by utilising differing spring strengths and quantities
- Various control modules for switching times to match application requirements
Direct drive input
Gearbox and Z cylindrical-rotor motor combinations using end caps
Coupling connection
Gearbox and motor combinations with Demag coupling shaft end (Z cylindrical-rotor motors or KB conical-rotor brake motors) using intermediate flange and roller spider coupling
For outputs up to 45 kW: 4-pole Z motors
Designation ZBA = braked ZNA = no brake |
Output [kW] 60% CDF 60 °C temp. |
ZBA/ZNA 63 B4 | 0.18 |
ZBA/ZNA 71 A4 | 0.25 |
ZBA/ZNA 71 B4 | 0.37 |
ZBA/ZNA 80 A4 | 0.55 |
ZBA/ZNA 80 B4 | 0.75 |
ZBA/ZNA 90 A4 | 1.1 |
ZBA/ZNA 90 B4 | 1.5 |
ZBA/ZNA 100 AL4 | 2.2 |
ZBA/ZNA 100 B4 | 3 |
ZBA/ZNA 112 A4 | 4 |
ZBA/ZNA 132 AL4 | 5.5 |
ZBA/ZNA 132 B4 | 7.5 |
ZBA/ZNA 132 B4 | 9.5 |
ZBA/ZNA 160 AL4 | 11 |
ZBA/ZNA 160 B4 | 15 |
ZBA/ZNA 180 A4 | 18.5 |
ZBA/ZNA 180 B4 | 22 |
ZBA/ZNA 200 A4 | 30 |
ZBA/ZNA 225 AL4 | 37 |
ZBA/ZNA 225 B4 | 45 |
Efficiency to IE2: 4-pole ZBE/ZNE motors
Designation
ZBE = braked |
Output [kW] 100 % CDF 40 °C temp. |
Efficiency [%] | ||
η50 | η75 | η100 | ||
ZBE/ZNE 63 B4 | 0.18 | 66.5 | 71.2 | 72.1 |
ZBE/ZNE 71 A4 | 0.25 | 69.5 | 74.0 | 74.9 |
ZBE/ZNE 80 A4 | 0.55 | 78.0 | 78.3 | 78,1 |
ZBE/ZNE 80 B4 | 0.75 | 79.3 | 82.2 | 79.6 |
ZBE/ZNE 90 A4 | 1.1 | 79.8 | 82.3 | 81.4 |
ZBE/ZNE 90 B4 | 1.5 | 82.1 | 83.4 | 82.8 |
ZBE/ZNE 100 A4 | 2.2 | 83.8 | 84.9 | 84.3 |
ZBE/ZNE 100 B4 | 3 | 83.6 | 86.4 | 85.5 |
ZBE/ZNE 112 A4 | 4 | 86 | 87.4 | 86.6 |
ZBE/ZNE 132 A4 | 5.5 | 87.2 | 88.3 | 87.7 |
ZBE/ZNE 132 B4 * | 7.5 | 87.5 | 90.3 | 88.7 |
ZBE/ZNE 160 A4 * | 11 | 89 | 90.8 | 89.8 |
ZBE/ZNE 160 B4 * | 15 | 89.2 | 91.8 | 90.6 |
ZBE/ZNE 180 A4 * | 18.5 | 89.3 | 92.4 | 91.2 |
ZBE/ZNE 180 B4 * | 22 | 89.2 | 92.3 | 91.6 |
ZBE/ZNE 200 A4 * | 30 | 88.4 | 92.8 | 92.3 |
ZBE/ZNE 225 A4 * | 37 | 90.8 | 93.2 | 92.7 |
ZBE/ZNE 225 B4 * | 45 | 92.2 | 93.5 | 93.1 |
Cylindrical-rotor motors

Conical-rotor brake motors
Starting and stopping with maximum performance
Simple, robust and reliable – these are the key characteristics of our KB conical-rotor brake motors. Their unique brake operating principle eliminates the need for separate control or additional switching elements. This is due to the mechanical connection between the brake and rotor. The result:
- particularly high braking performance
- approval for operation with extremely high switching frequencies
- two-speed pole-changing motors
- drives for starting-and-stopping applications and for direct line-fed travel motions
- resistance to temporary overload
- KB motors can be connected to gearboxes via a coupling
High-performance motor
- Motor output up to 55 kW (at 40% CDF)
- 2, 4, 6 or 8 poles
- Two-speed pole-changing motors
- KBA for starting-and-stopping drives
- KBF for direct line-fed travel motions
Extremely robust brake
- No switching elements needed
- No separate control needed
- Long brake lining service life thanks to effective dissipation of heat generated by the brake (through large surface area of brake cover)
- Short overall length and good heat dissipation (brake disc simultaneously forms the motor fan)
- Two brake disc designs – light for KBA motors, heavy and with increased moment of inertia for KBF motors
- Extremely high switching frequency permitted
- Resistance to temporary overload
Convenient online configuration with Demag Drive Designer
- View technical data
- Design support by means of 2D and 3D geometries in all standard file formats
- Provision of electrical circuit diagrams
- Delivery time indicator
Coupling connection
Gearbox and motor combinations with Demag coupling shaft end (Z cylindrical-rotor motors or KB conical-rotor brake motors) using intermediate flange and roller spider coupling
For outputs up to 55 kW: 4-pole KBA motors
Designation | Output [kW] 40% CDF |
Braking torque [Nm] |
KBA 71 A4 | 0.48 | 6.7 |
KBA 71 B4 | 0.72 | 8.7 |
KBA 80 A4 | 1.05 | 14.5 |
KBA 80 B4 | 1.3 | 17.5 |
KBA 90 A4 | 1.65 | 23 |
KBA 90 B4 | 2.0 | 29 |
KBA 100 A4 | 2.4 | 38 |
KBA 100 B4 | 3 | 48 |
KBA 112 B4 A | 3.6 | 56 |
KBA 112 B4 | 4.5 | 68 |
KBA 125 B4 A | 6 | 82 |
KBA 125 B4 | 7.4 | 94 |
KBA 140 B4 A | 9.6 | 130 |
KBA 140 B4 | 11.5 | 166 |
KBA 160 B4 | 20 | 215 |
KBA 180 A4 | 30 | 335 |
KBA 200 B4 | 40 | 430 |
KBA 225 B4 | 55 | 610 |
Line-fed travel applications: 8/2-pole KBF motors
Designation | Output [kW] 40/40% CDF |
Braking torque [Nm] |
KBF 71 A 8/2 | 0.04/0.2 | 1.4 |
KBF 71 B 8/2 | 0.06/0.3 | 1.6 |
KBF 80 A 8/2 | 0.13/0.5 | 3.2 |
KBF 90 A 8/2 | 0.2/0.8 | 5.2 |
KBF 100 A 8/2 | 0.26/1.2 | 7.0 |
KBF 112 A 8/2 | 0.42/1.9 | 11.8 |
KBF 125 A 8/2 | 0.65/2.9 | 17 |
KBF 140 A 8/2 | 1.1/4.5 | 24.3 |
Motors
Options | Cylindrical-rotor motor Z |
Conical-rotor brake motor KB |
Winding protection | ||
PTC thermistor | • | • |
Temperature detectors | • | • |
Rotary encoder | ||
Integral pulse generator | • | • |
External pulse generator | • | • |
Integrated external pulse generator | • | |
Electrical plug connector | • | • |
Increased enclosure | • | • |
Anti-condensation heater | ||
Heating tape | • | • |
Via motor winding | • | |
External fan | ||
Additional integrated fan | • | |
Additional external fan | • | • |
Heavy fan | • | |
Heavy brake disc | • | |
Canopy/round protection panel | • | • |
Brakes
Options | Cylindrical-rotor motor Z |
Conical-rotor brake motor KB |
Manual brake release unit | • | • |
Brake function monitoring | • | |
Brake adjustment monitoring | • | |
Sealed/increased enclosure | • | |
Various control modules | • | |
Enclosed brake compartment | • | |
Emergency-stop brake lining | • |