Lenze m850 Synchronous Servo Motors Review: Specs, Price and Applications
Updated: 4 days ago
Lenze m850 is a family of synchronous servo motors for positioning, packaging and handling machinery. The family emphasizes controlled motion with robust behavior and offers several feedback and geared-motor combinations; the selected motor and inverter form the usable servo axis.
Quick Verdict
m850 deserves consideration for a machine axis whose priorities are stable motion, manageable inertia matching and integration with the Lenze drive ecosystem. Select from a configuration-specific torque-speed curve and complete duty calculation. A broad family torque headline cannot stand in for the continuous capability of one motor.
Lenze m850 Synchronous Servo Motors at a Glance
Specification | Details |
Product class | Synchronous servo motor family |
Published power range | 0.11–9.2 kW across the family |
Published technical-data torque range | 0.18–67 Nm; confirm the selected motor and rating basis |
Intended motion context | Medium-dynamics positioning, robotics, packaging and handling |
Feedback choices | Resolver, absolute encoder or OCT digital absolute feedback by configuration |
Geared-motor combinations | g500, g7x0 and g8x0 families, subject to compatible selection |
US-page inverter examples | i700 cabinet and i950 cabinet; verify current regional combination |
Installation protection | Warehouse brochure lists IP54/65; exact configuration and interface sealing apply |
Design and Engineering Assessment
Servo selection begins with the mechanism. The motor must accelerate its own rotor and the reflected load, then supply process torque over the intended speed range. A larger motor can improve one inertia ratio while adding rotor inertia and affecting acceleration demand, so motor size should follow a complete axis calculation.
A gearbox changes both torque and reflected inertia. It can help place the motor in a useful speed range, but introduces its own efficiency, backlash, compliance and bearing constraints. Compare a geared m850 axis with a direct arrangement at the driven mechanism, including settling behavior and service requirements.
Feedback selection determines commissioning and cable architecture as well as position information. A resolver configuration and a digital absolute single-cable configuration should not be treated as interchangeable accessories. Confirm that motor, inverter, cable and controller support the intended feedback combination.
The current technical-data range is a family summary. It does not state that the largest torque occurs at the largest speed or power, and a higher transient headline must not be described as universally continuous. Use the actual winding, speed range, thermal installation and drive current limits to establish the working envelope.
Duty, Inertia and Settling
Build a move profile that includes acceleration, constant-speed travel, deceleration and dwell. Evaluate heating over repeated cycles and verify transient torque at the most demanding part of the profile. Holding or low-speed process work can be thermally significant even when mechanical output power is low.
Use loaded settling time and following error as acceptance criteria where the machine must stop accurately. A motor can reach the commanded position while a compliant belt, coupling or gearbox continues to move the tool. Tune and test the complete mechanism.
Cabling and Mechanical Integration
Specify flange, shaft, connector orientation, feedback, brake options and gearbox interface as one ordering definition. Include cable bend radius and service clearance in the machine layout so that a motor can actually be replaced without disturbing unrelated equipment.
Where an IP54 or IP65 selection is required, verify the exact shaft and connector conditions and the complete installation. An ingress rating alone does not establish chemical resistance, sanitary construction or suitability for a particular washdown process.
Drive Compatibility and Commissioning
Use an approved motor-inverter combination and the correct motor data. Set current and speed limits before tuning, verify encoder direction and confirm any brake sequencing with the real load. An electrically compatible power stage alone does not establish a supported feedback configuration.
Regional product pages may describe different inverter generations. Confirm the currently supplied combination for the installation location and record the exact hardware and firmware in the machine documentation. Plan spares around that released combination.
Applications and Selection
Positioning, packaging and material-handling axes that need a compatible synchronous motor, servo inverter and optional gearbox.
For Lenze m850 Synchronous Servo Motors, define the actual machine duty before selecting an ordering configuration. Include the required operating point, available installation space, environment and control interfaces. The specification table describes the product or family; the surrounding machine determines which of those features matters for the intended job.
Price and Value
Price: Request a quote for the exact configuration. Compare the product, compatible control equipment, required mechanical parts, cabling and commissioning as one installed system. A component price alone does not represent the cost of a working automation axis.
Evaluate an alternative against the same duty and acceptance criteria. Match the continuous operating requirement first, then compare transient capability, feedback, mechanical fit and support. This avoids choosing between superficially similar products whose ratings describe different operating conditions.
Pros and Cons
Advantages
Family covers a useful spread of positioning and handling duties
Feedback and gearbox options support several machine architectures
Lenze ecosystem can simplify a supported motor-inverter combination
Limitations
Family headline ratings require configuration-specific interpretation
Gearbox, feedback and inverter choices must be coordinated
Protection rating and smooth housing do not establish sanitary approval
Who Should Consider Lenze m850 Synchronous Servo Motors?
Consider Lenze m850 Synchronous Servo Motors for positioning, packaging and material-handling axes that need a compatible synchronous motor, servo inverter and optional gearbox. Establish the required operating point and installation interfaces before choosing the configuration, and use a representative loaded cycle as the acceptance basis.
Lenze m850 Synchronous Servo Motors FAQ
Is m850 an integrated motor and drive?
It is a synchronous servo motor family requiring a compatible external servo inverter. Specify the complete axis combination.
Can every m850 produce the largest family torque?
No. Power and torque ranges cover different configurations. Use the selected motor torque-speed curve and its thermal and transient limits.
Should a 200 Nm headline be used as the continuous rating?
No. A broad system or transient headline is not the continuous rating of an arbitrary motor. Verify the actual configuration and rating basis in its released technical data.
Does OCT mean any single-cable drive will work?
No. OCT feedback requires a compatible motor, inverter and cable arrangement. Verify the approved combination rather than relying on the cable count.
When should a gearbox be considered?
Consider one when speed, torque and inertia matching favor reduction. Include gearbox backlash, compliance, load capacity and efficiency in the mechanism comparison.
Is the motor automatically suitable for food washdown?
No. Verify the exact materials, seals, chemical exposure and installation requirements. An ingress-protection selection alone is not a sanitary-design approval.
What is the price?
Request a quote for the exact motor, feedback, brake and gearbox configuration, with the compatible inverter and cables.
What should commissioning verify?
Verify motor data, feedback direction, current limits, thermal duty, brake sequence where fitted, loaded settling and repeatable fault recovery using the actual mechanism.
Prices are indicative and may change. Confirm the final configuration, commercial terms and delivery schedule before ordering.
