CM3C.. series synchronous servomotors / Product announcement

Highly dynamic, high-precision and high-performance drives are essential wherever heavy external loads need to be moved quickly and positioned exactly. CM3C.. synchronous servomotors combine precisely these features and are also exceptionally compact and space-saving.

The dynamic and precision solution for heavy external loads

Red servomotor against a gray concrete backdrop with glass facade in the background
CM3C.. series synchronous servomotor

The lowest possible ratio of load moment of inertia to motor moment of inertia is key for transporting heavy loads from A to B at high speed and with great precision. CM3C.. series servomotors thus boast increased inertia. The synchronous motors are therefore particularly suited to all automation, handling and transport applications for heavy goods with a correspondingly high mass moment of inertia. With their four sizes – 63, 71, 80 and 100 – they can cover standstill torques from 2.5 to 38.5 Nm.

The servomotors are also exceptionally small and space-saving, while the option of mounting gear units to the motor directly eliminates the need for adapters and couplings. Short-term overload capacity and smooth surfaces (hygiene-friendly design) make the medium-inertia servomotors particularly robust and dust-repellent. In addition, the rotors, which are equipped with permanent magnets, deliver a very high level of efficiency, thus ensuring exceptionally energy-efficient operation.

Flexibility and reliability are also key features of the brakes available for the servomotors. Alongside the 24 V holding brake typical for servomotors, users can also choose an optional brake with increased working capacity. Thanks to this equipment, the synchronous motors can even handle applications where emergency braking is needed. Requirements of this kind are typical in machine automation, handling gantries and trolley drives.

Thanks to our modular system, the highly flexible CM3C.. series servomotors can be adapted to meet specific needs. At the same time, single-cable technology means they can be installed quickly and integrated intelligently into state-of-the-art Industry 4.0 concepts.

Why not ask us for advice?

  • Our experts are familiar with your industry and the requirements involved
  • Our global network ensures we are close at hand wherever and whenever you need us
  • We have the expertise and tools to provide you with the best possible support and advice

Your benefits

  • Space-saving installation

    thanks to small and compact design and direct gear unit mounting without adapters or couplings
  • Fast, reliable startup

    with auto-tuning using the electronic nameplate
  • Reduced installation outlay

    by using motors with simple and cost-saving single-cable technology
  • Suitable for foodstuff applications

    thanks to dust-repellent, hygiene-friendly design
  • Decelerate heavy loads safely

    using powerful spring-loaded brakes with an increased working capacity
  • Optimum drive selection

    thanks to our unique and versatile modular system

Features

Red servomotor with gray, directly mounted planetary servo gear unit against a light-gray concrete backdrop
PxG..CM3C.. planetary servo gearmotor
  • 4 sizes 63, 71, 80 and100 in 3 lengths S, M and L
  • Compact and powerful thanks to cutting-edge magnet and winding technology
  • RH1M resolver
  • Adjustable right-angle flange sockets
  • PK (PT1000) temperature sensor
  • IP65 protection
  • Long bearing service life
  • High permitted overhung loads
  • Stand-alone servomotor or direct gear unit mounting
  • Virtually no perceptible cogging
  • Continuous standstill torques (M0) from 2.5 to 38.5 Nm
  • Maximum torques (MPK) of up to 115.5 Nm
  • Up to 4 rated speeds:
    2000 min-1, 3000 min-1, 4500 min-1, 6000 min-1
  • Condition monitoring and extensive options for fault diagnostics with the digital MOVILINK® DDI motor interface
  • Optimized operation on MOVIDRIVE® inverters from the MOVI‑C® modular automation system
  • Options:
    • Forced cooling fan for enhanced thermal motor capacity utilization
    • Terminal box
    • Safety-rated design with brake and encoder
    • Explosion-proof design: ATEX and IECEx
    • All standard approvals (UL, CSA, EAC, UkrSEPRO)
  • Compatible non-SEW encoder systems:
    • DRIVE‑CLiQ from Siemens for operation using standard Siemens Sinumerik and Sinamics controllers
    • EnDat2.2 from HEIDENHAIN
    • HIPERFACE DSL from SICK Stegmann

Technical data

Close table
Motor Continuous
standstill torque
M0
Nm
Dynamic
limit torque
Mpk
Nm
Weight


kg
Mass
moment of inertia
Jmot
10-4 kgm2
CM3C63S
CM3C63M
CM3C63L
2.5
4.4
5.8
7.5
13.2
17.4
1.07
1.7
1.96
2.04
4.01
4.25
CM3C71S
CM3C71M
CM3C71L
6.2
8.3
13.2
18.6
24.9
39.6
1.88
2.69
3.58
7.6
10.9
17
CM3C80S
CM3C80M
CM3C80L
10.1
13.8
22.1
30.3
41.4
66.3
3.12
4.1
6.02
17.5
25.7
40.5
CM3C100S
CM3C6100M
CM3C100L
17.1
24.9
38.5
52.5
74.7
115.5
5.05
6.59
9.67
41
58
93
We have stored a table for you here.

Areas of application

  • Heavy-duty gantries
  • Cartesian robots
  • Palletizers
  • Deep drawing and forming machines
  • Dynamic removal and loading units
  • Machine tools
  • Hoist applications
  • Materials handling technology with heavy external loads
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