ZN.. cycloidal servo gearmotors

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Your benefits

High power density
thanks to high overload capacity, high torsional stiffness and pull-out rigidity, as well as mechanical clearance

Extreme precision
thanks to very high positioning accuracy and its quick response time

Great flexibility
through modular design integration, which allows countless combination possibilities.

ZN.. series cycloidal gearmotors – compact, precise, powerful

Extreme precision under high acceleration torques – those are the outstanding features of ZN.. series cycloidal servo gearmotors. Their performance data makes them unique – whether you emphasize torque, stiffness or weight.

The gearmotor is shipped with lubrication for life, ready for installation and available in up to twelve sizes. We especially emphasize the features of the cycloidal servo gear unit: It excels by mechanical clearance and its high torsional stiffness and pull-out rigidity as well as excellent overload capacity. This allows even demanding tasks such as exact positioning or fast movement of heavy loads to be performed with a high degree of repetitive accuracy.

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Worldwide locations

Locations in Germany

Any gear unit-motor combination from the kit

The MD adapter combines the advantages of a direct motor attachment with the benefits of an adapter attachment. Despite its enormous compactness, the MD adapter offers, in addition to the positive torque transmission, the option of easily replacing the CM3C servo motor.

The HN adapter provides a wide range of different possible motor mounting dimensions for even more flexible motor mounting by the customer. The mounting is carried out force-locking via a clamp coupling. The ZN.. cycloidal servo gear unit from SEW-EURODRIVE is optimally matched to operation on the servo inverters of the MOVI-C® automation system. The modular mounting via the MD and HN adapter complements the existing ZN.. CMP... cycloidal servo gearmotors in direct motor mounting.

ZN.. servo gear units

backlash-free servo gear unit
two-stage cycloidal gear unit
designed for acceleration torques between 612 Nm and 17500 Nm (36,750 Nm with direct motor mounting)
lubrication for life ex works
5 times the permissible shock load
high power density
mechanical backlash-free
low mass moment of inertia
high positioning accuracy
gearbox can be used as main bearing

CM3C-motor

More about the CM3C series synchronous servo motors.. (Medium Inertia)

CMP..-motor

Highest dynamic characteristics throughout the entire CMP.. series thanks to the low-inertia rotor design and high overload capacity of the motors
Performance-optimized and extremely compact design thanks to the latest winding and magnet technology
Standstill torques from 0.5 Nm to 95 Nm

Learn more about the synchronous servomotors of the CMP.. series (highly dynamic)

Gear unit type	Servomotor	Gear ratio	Nominal torques M_aN (5 min^-1) Nm	Acceleration torques M_apk Nm	Emergency switching off torque M_{aEmerg.Off Nm}	Torsional stiffness C_T Nm/arcmin	Tipping stiffness C_pr NM/arcmin	Lost Motion and hysteresis loss arcmin	Permitted breakdown torque M_bend Nm
ZNBF30 to ZNBF130 / ZEBF140	CMP..	41-249	341 – 20460	612 – 36750	1225 – 73500	61 - 6320	530 - 19800	< 1.0	784 – 44000
ZNBF31 to ZNBF121	CM3C	41-249	341 – 9733	612 – 17500	1225 – 35000	61 - 2600	530 - 9000	< 1,0	784 – 15000
ZNBF31 to ZNBF121	CMP..	41-249	341 – 9733	612 – 17500	1225 – 35000	61 - 2600	530 - 9000	< 1,0	784 – 15000

Areas of application	Application example
Robotics industry	Painting, welding, assembly and service robots
Industrial handling technology	Rotary and positioning tables
Food and beverage industry	Palletizer and layer pad inserter
Sheet metal and wood processing	Joinery machines, planing machines, etc. Cutter heads, portals, etc.
Packaging technology	Delta and SCARA robots
Medical technology	Imaging processes