ZN.. precision servo gearmotors

The new precision servo gearmotors of the ZN.. series offer you a dynamic and highly flexible drive solution with overload capacity. Ideal for demanding applications such as gantry, rotary table or tie sheet inserter. Because these applications demand top performances in terms of torque, stiffness and precision.

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

ZN.. precision servo gearmotor
The ZN.. series precision servo gearmotor
The ZN.. series precision servo gearmotor

Extreme precision under high acceleration torques - those are the outstanding features of ZN.. series precision 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 twelve sizes. We especially emphasize the features of the precision servo gearmotor: 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.

Any gear unit-motor combination from our modular system

Design of the ZN.. servo gearmotor

The gear unit is made up of a CMP..-/CM.. motor, an intermediate flange and a two-stage cycloidal gear unit. Gear unit and motor can be combined in many ways using the SEW-EURODRIVE modular system.

Furthermore, our ZN.. servo gearmotors' compact design ensures optimum mounting options and application possibilities – even in confined installation spaces. This way, they combine our ZN.. series servo gearmotors. Power density, precision and dynamics.


Naturally, the ZN.. servo gearmotors are optimized for use with the MOVIDRIVE® B application inverter and the MOVIAXIS® multi-axis servo inverter in combination with the MOVI-PLC® controller.

Get in touch with us.

  • Our experts understand your industry and your requirements.
  • Our global network ensures we are there wherever and whenever you need us
  • We have the expertise and tools to provide optimum advice and support

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.

Properties

ZN.. Servo gear units

  • Zero-backlash precision servo gearmotor
  • two-stage cycloidal gear unit
  • designed for acceleration torques between 612 Nm and 36,778 Nm
  • lubrication for life ex works
  • 5-times permitted shock load (MaN at 15 rpm)
  • low mass moment of inertia

CMP..-/CM.. 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
  • Direct mounting of the motor on a gear unit from our modular gear unit system


Technical data

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Gear unit type Servomotor Gear ratio Nominal torques MN
(5 rpm)
Nm
Acceleration torques Mpk
Nm
Emergency switching off torque Memergency switching off
Nm
Torsional stiffness Θtorsion
Nm/arcmin
Lost Motion &
Hysteresis Loss
arcmin
Permitted breakdown torque Mbreakdown
Nm
ZN..30 to ZN..140 CMP.. 41-236 341 – 20460 612 – 36788 1225 - 73575 61 - 6320 < 1.0 784 - 44000
ZN..40 to ZN..140 CM 41-236 573 – 20460 1029 - 36788 2058 - 73575 113 - 6320 < 1.0 1660 - 44000
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Areas of application

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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
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