CT Series
CT series motors incorporate innovative cooling technology, high-torque magnetic designs, rugged bearings and high-voltage insulation systems. These high-torque motors support large mechanical loads, and can be used with any stepper drive. CT Series motors are available in NEMA 17 and 23 frame sizes and are available with a variety of lengths, windings and shafts.
Features
- High torque magnetic design features a large rotor diameter, small air gap, high energy magnets and computer controlled winding to provide maximum torque in the smallest size
- Aluminum shell and end-caps quickly remove heat from the motor, allowing for higher current and torque ratings while running at a lower temperature for longer motor life
- Large bearing system accommodates high thrust loads and high side loading
- High voltage molded insulation system encases the stator, eliminating joints and gaps to improve reliability and increase voltage ratings
- CT Series motors can be used with all standard stepper drives, as well as high-voltage, high-performance drives
- Available in NEMA 17 and 23 frame sizes with a wide selection of lengths, windings and shafts
- Easy to apply worldwide – CE and RoHS certified as a standar
Specifications
Size 17 CTP High Torque Performance Series - 2 Phase, 1.8° Step Motors. Frame size: 43 mm (1.7 in)
| Series | Construction | Holding Torque (Motor Mounted) | Length | ||
|---|---|---|---|---|---|
| Style | Stacks | Bipolar, Nm | mm | ||
| CTP10 | - | Short | 0.30 | 34.7 |
|
| CTP11 | - | 1 | 0.44 | 40.9 | |
| CTP12 | - | 2 | 1.92 | 48.8 | |
Size 23 CTM/P Enhanced-Max / High Torque Performance Series - 2 Phase, 1.8° Step Motors. Frame size: 57 mm (2.2 in)
| Series | Construction | Holding Torque (Motor Mounted) | Length | ||
|---|---|---|---|---|---|
| Style | Stacks | Bipolar, Nm | mm | ||
| CTM21 | Enhanced | 1 | 1.84 | 54.4 |
|
| CTM22 | Enhanced | 2 | 3.32 | 84.3 | |
| CTP20 | - | Short | 0.71 | 41.2 | |
| CTP21 | - | 1 | 1.41 | 54.1 | |
| CTP22 | - | 2 | 2.54 | 84.3 | |
*Enhanced versions provide the maximum performance torque available. This technology may boost torque up to 40%.
Media & Downloads
| Title | Language | Date | Share URL |
|---|---|---|---|
| Kollmorgen Full-line Catalog | English | Share URLview | |
| CT Series Stepper Motor Catalog | English | Share URLview | |
| Kollmorgen Stepper Motor Catalog | English | Share URLview |
These files cover the standard product family line. For environmental declarations for custom products, i.e. part numbers containing “S” or “X”, visit our Environmental Compliance search.
| Title | File Language | Date | Share URL |
|---|---|---|---|
| CE Technical Notice - Servo and Stepper Motors Efficiency | English | |
Share URL /sites/default/files/2026-01/CE%20Technical%20Notice%20on%20Efficiency%20for%20Servo%20and%20Stepper%20Motors%2008Jan25.pdf |
| CEL China Efficiency Labelling for Servo and Stepper Motors | English | |
Share URL /sites/default/files/2026-01/CEL%20Technical%20Notice%20on%20Efficiency%20for%20Servo%20and%20Stepper%20Motors%2008JAN25.pdf |
| China Compulsory Product Certification (CCC Technical Notice) | English | |
Share URL /sites/default/files/2026-01/CCC%20Technical%20Notice%20on%20Scope%20of%20Kollmorgen%20Products%2008JAN25.pdf |
| CT Stepper Motor UKCA Declaration of Conformity | English | |
Share URL /sites/default/files/2023-10/CT%20Stepper_UKCA.pdf |
| CTP & CTM Stepper Motor EU Declaration of Conformity US EN | English | |
Share URL /sites/default/files/public_downloads/CE%20Declaration%20of%20Conformance%20CT_11DEC2020.pdf |
These 3D models are intended to guide your design activities and may be used as reference information. Be sure to consult a Kollmorgen expert to ensure you have the most current and accurate information for critical aspects of design work.
| Title | File Language | Date | Share URL |
|---|---|---|---|
| CTP1 | English | |
Share URL http://productpage.3dpublisher.net/3dproductpage/Qsvalidlogin.asp?GUID=1249850940083&name=CTP1&isCate=false |
| CTP2 | English | |
Share URL http://productpage.3dpublisher.net/3dproductpage/Qsvalidlogin.asp?GUID=1249850940083&name=CTP2&isCate=false |
| CTP3 | English | |
Share URL http://productpage.3dpublisher.net/3dproductpage/Qsvalidlogin.asp?GUID=1249850940083&name=CTP3&isCate=false |
Engineer the Exceptional
Learn how to engineer exceptional machines, robots and vehicles with the highest-performing, most reliable motors, drives, automation solutions and more.