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                                                                                                                                    CM Servo Motor, 400% Overload Servo Motor, 68Nm Torque Servo Motor
                      

Type:	Servo Drive Motor	Warranty:	Original Manufacturer's Warranty
Pakage:	International Express（DHL/FEDEX/TNT/UPS/ARAMEX）/sea Freight / Air Freight / International Special Line	Freight Charge:	For Industrial Equipment (e.g., PLC Modules, Inverters..), Shipping Cost Varies By Package Weight/volume And Delivery Location. Contact Our Sales Team For A Customized Shipping Solution And Quote

Type:	Servo Drive Motor
Warranty:	Original Manufacturer's Warranty
Pakage:	International Express（DHL/FEDEX/TNT/UPS/ARAMEX）/sea Freight / Air Freight / International Special Line
Freight Charge:	For Industrial Equipment (e.g., PLC Modules, Inverters..), Shipping Cost Varies By Package Weight/volume And Delivery Location. Contact Our Sales Team For A Customized Shipping Solution And Quote

CM Servo Motor 400% Overload & 5-68Nm Torque Servo Motor Precision Control

CM Servo Motor | 400% Overload & 5-68Nm Torque for Precision Control

CM Servo Motor delivers unbeatable precision and durability for industrial automation needs, featuring 400% overload capacity and 5-68Nm torque range to handle high-dynamic, heavy-load tasks with ease. Designed for seamless integration into packaging lines, gantry robots, and positioning systems, this high-performance servo motor ensures minimal torque ripple, consistent speed regulation, and reliable operation even in harsh factory environments. Ideal for OEMs and system integrators seeking efficiency gains, the CM series pairs perfectly with SEW drives for a complete motion control solution.

Core Product Features

Wide Performance Range: Available in 3 sizes with multiple length variants, delivering 5-68Nm holding torque and peak torque up to 238Nm, perfectly matching diverse industrial load requirements.
Advanced Technical Configuration: Equipped with high-energy NdFeB magnets and optimized magnetic circuit design; optional HIPERFACE® encoder and high-performance service brake included, with electronic nameplate functionality for easy parameter management.
Compact & Flexible Design: High power density structure enables direct drive integration without adapters, and seamless combination with most gear units for flexible installation.
Robust & Reliable Construction: Rugged housing with convection cooling system, suitable for harsh industrial environments; features high radial load capacity and low torque ripple for stable operation.

Core Technical Specifications

Parameter	Range/Specification
Holding Torque	5-68 Nm
Peak Torque	Up to 238 Nm
Overload Capacity	400% (standard)
Number of Sizes	3 sizes, multiple lengths
Encoder Options	HIPERFACE® / Resolver / Incremental
Cooling Method	Convection cooling
Ambient Temperature Range	-20°C to +40°C (standard); up to +60°C (derated)
Protection Class (Standard)	IP65 (housing)
Mounting Options	Flange / Face / Foot mounting; vertical/horizontal compatible
Brake Option	High-performance service brake (optional)
Compatibility	SEW MOVIAXIS® inverters; third-party drives (signal compatibility required)
Energy Efficiency	Higher than traditional asynchronous motors

Available Models

CM Series (High Inertia Synchronous Servo Motors)

Model	Rated Speed (rpm)	Standstill Torque (M₀, Nm)	Peak Torque (Mₚₖ, Nm)	Rotor Inertia (Jₘₒₜ, kg*cm²)
CM71S	2000/3000/4500/6000	5	16.5	4.99 / 6.72
CM71M	2000/3000/4500/6000	6.5	21.5	6.4 / 8.13
CM71L	2000/3000/4500/6000	9.5	31.4	9.21 / 10.94
CM90S	2000/3000/4500/6000	11	39.6	18.2 / 22
CM90M	2000/3000/4500/6000	14.5	52.2	23.4 / 27.2
CM90L	2000/3000/4500/6000	21	75.6	33.7 / 37.5
CM112S	2000/3000/4500	23.5	82.3	68.9 / 84.2
CM112M	2000/3000/4500	31	108.5	88.9 / 104.2
CM112L	2000/3000/4500	45	157.5	128.8 / 144.1
CM112H	2000/3000/4500	68	238	188.7 / 204

CMP Series (High Dynamic Synchronous Servo Motors, Extended CM Series)

Model	Rated Speed (rpm)	Standstill Torque (M₀, Nm)	Peak Torque (Mₘₐₓ, Nm)	Rotor Inertia (Jₘₒₜ, kg*cm²)	Brake Torque (Mᵦᵣₐₖₑ, Nm)
CMP40S	3000/4500/6000	0.5-1.9	-	0.10	0.95
CMP40M	3000/4500/6000	0.8-3.8	-	0.15	0.95
CMP50S	3000/4500/6000	1.3	5.2	0.42	3.1
CMP50M	3000/4500/6000	2.4	10.3	0.67	4.3
CMP50L	3000/4500/6000	3.3	15.4	0.92	4.3
CMP63S	3000/4500/6000	2.9	11.1	1.15	7.0
CMP63M	3000/4500/6000	5.3	21.4	1.92	9.3
CMP63L	3000/4500/6000	7.1	30.4	2.69	9.3

Key Notes for Overseas Sales Models

All models are compliant with international standards (UL, CSA) and available in major overseas markets (EU, US, Asia-Pacific) via SEW regional warehouses. Optional configurations (HIPERFACE® encoder, 24V holding brake, forced cooling fan) are available for all models. The CMP series is an extended high-dynamic variant of the CM series, covering low torque ranges (0.5-7.1 Nm) for compact space applications.

Core Competitive Advantages

Superior Dynamic Load Capacity: 400% overload capacity as standard, easily handling high-dynamic and heavy-load working conditions with fast acceleration response.
Precision Positioning Control: High running accuracy and minimal cogging effect ensure precise positioning of objects with any inertia value, guaranteeing stable production processes.
Easy Installation & Compatibility: Modular design supports multi-scenario combinations; pairs seamlessly with SEW MOVIAXIS® multi-axis servo inverters to form a complete motion control solution.
Energy-efficient & Durable: Higher energy efficiency than traditional asynchronous motors; robust structure with simplified startup procedures, effectively reducing equipment maintenance and energy consumption costs.
Versatile Industry Adaptability: Ideal for food & beverage, logistics handling, packaging machinery, gantry robots and more, compatible with strict working environments.

Application Fields

Packaging Machinery: High-speed filling, sealing, labeling
Material Handling: Gantry robots, stacker cranes, AGV lifting systems
Automated Assembly: Pick-and-place, robotic arm positioning
Printing & Paper: Web tension control, cutting, folding
Textile Machinery: Yarn winding, fabric stretching
Medical Device Manufacturing: Precision instrument assembly

Frequently Asked Questions

Q: Can the CM servo motor work with non-SEW drives?

A: Yes, but it's optimized for SEW MOVIAXIS® inverters. For third-party drives, you'll need HIPERFACE® or resolver signal compatibility check—we can share the parameter sheet for free.

Q: What's the max ambient temperature it can handle?

A: -20°C to +40°C (standard). With derating, it can run at +60°C for short periods. Avoid dusty, humid environments unless you add a protective cover.

Q: How to get spare parts fast overseas?

A: SEW has regional warehouses in EU, US, Asia. Most parts (bearings, brakes) ship within 3-5 days. Just provide the motor's serial number for quick matching.

Q: Is the CM series compatible with food industry standards?

A: The standard model isn't IP67-rated. For food/beverage use, choose the stainless steel housing variant—it meets FDA requirements for washdown environments.

Q: Can I install it vertically? Any special requirements?

A: Totally fine. For vertical mounting (like lifting systems), add a holding brake (optional) to prevent load dropping during power-off. We recommend our matched brake kits for best performance.

Q: How to reduce torque ripple in high-precision applications?

A: Use the electronic nameplate to auto-tune with SEW drives, or adjust the current loop gain. Low torque ripple is built-in—tuning just makes it smoother for tasks like gantry robot positioning.

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CM Servo Motor 400% Overload & 5-68Nm Torque Servo Motor Precision Control

CM Servo Motor

400% Overload Servo Motor

68Nm Torque Servo Motor

drive motion and control,

motion control drive,