Description
Teknic M-3422C-LN-16D | Brushless Servo Motor
Dynamic Product Introduction
A servo motor replacement can become a machine-level problem when the original motor’s electrical and mechanical characteristics are not matched correctly. In high-cycle automation, even a motor that physically fits may introduce drive faults, unstable motion, or excessive heating if its feedback and winding characteristics differ from the original.
The Teknic M-3422C-LN-16D is identified as a Hudson-series brushless DC servo motor intended for demanding OEM motion-control applications. Teknic’s Hudson motor family emphasizes high torque density, oversized bearings, and Class H windings. Supplier-published data for this model reports a speed of 6000 RPM and torque of 267.2 oz-in, although the applicable operating conditions and continuous-duty ratings need confirmation.
For maintenance teams supporting legacy machinery, the M-3422C-LN-16D may offer a replacement path that preserves the existing motor architecture. The deciding factors are not just the model number, but also the drive pairing, feedback configuration, shaft dimensions, and application duty cycle. No quantified performance improvement over another motor should be claimed without comparative test data.
M-3422C-LN-16D
Key Technical Specifications
The following specifications combine supplier-published identification with parameters requiring OEM confirmation.
- Manufacturer: Teknic, Inc.
- Model Number: M-3422C-LN-16D
- Motor Series: Hudson
- Motor Type: Brushless DC servo motor
- Phase: 3-phase, supplier-listed
- Current: 11.7 A, supplier-listed; confirm whether this is RMS, continuous, or another rating
- Speed: 6000 RPM, supplier-listed
- Torque: 267.2 oz-in, supplier-listed; confirm continuous versus peak torque
- Winding Insulation: Class H, stated for the Hudson family; verify exact model applicability
- Feedback Device: Exact encoder or feedback configuration not independently verified
- Shaft / Mounting Dimensions: Require confirmation from the OEM drawing
- Drive Compatibility: Verify drive model, commutation requirements, feedback interface, and current limits
Engineering note: Do not use the supplier’s current, speed, or torque figures as commissioning limits until the exact M-3422C-LN-16D datasheet or nameplate confirms their rating basis.
Global Sourcing & Live-Test SOP (Transparency Core)
For a surplus Teknic M-3422C-LN-16D, a shaft-spin check is not enough. The motor needs documented electrical, mechanical, and feedback checks before it can be represented as suitable for production use.
The following is a recommended supplier QC procedure. It does not represent testing already completed on any specific unit.
Inbound Verification
- Match the full M-3422C-LN-16D designation against the purchase order.
- Record the serial number, nameplate data, and visible revision markings.
- Inspect the shaft, mounting face, connector, and motor leads for damage.
- Check for signs of bearing contamination, corrosion, impact, or unauthorized repair.
- Review available OEM paperwork and supplier traceability records.
- Photograph the actual unit and document any discrepancies before acceptance.
Live Simulation
Use a compatible servo drive and feedback interface only after confirming the motor’s electrical requirements.
Recommended checks include:
- Verify motor phase wiring and feedback connections.
- Confirm the drive recognizes valid feedback, where applicable.
- Perform a controlled low-speed rotation test.
- Check rotation direction and feedback consistency.
- Monitor drive fault status during acceleration and deceleration.
- Listen for abnormal bearing noise and inspect for excessive vibration.
Do not assume that an arbitrary servo drive can safely operate the M-3422C-LN-16D. Incorrect commutation or current settings can damage the motor or drive.
Diagnostics and Heat Run
A meaningful test report should identify the test equipment, drive configuration, duration, and acceptance criteria.
Recommended checks include:
- Winding resistance comparison against applicable OEM limits.
- Feedback signal stability during rotation.
- Controlled speed testing within verified motor limits.
- Temperature monitoring under a defined load.
- Sustained operation to identify abnormal noise, vibration, or thermal behavior.
A 24-hour heat run may be appropriate for a particular inspection program, but it should only be claimed when completed and documented. It does not independently establish insulation integrity, rated torque, or remaining service life.
Final Preparation
Before shipment:
- Record the exact model and serial number.
- Document test results and any unverified characteristics.
- Photograph the motor, shaft, connectors, and nameplate.
- Protect the shaft and feedback connections against transit damage.
- Use ESD-safe packaging where applicable.
- Provide written condition, warranty, and return terms.
For international buyers, confirm the shipping origin, lead time, export paperwork, and responsibility for return freight before issuing the purchase order.
The Field Engineer’s Pitfall Guide
❗ Warning 1: Do Not Confuse Peak Torque With Continuous Torque
The supplier-listed 267.2 oz-in torque figure needs confirmation against the OEM rating conditions. Peak torque is not a continuous-duty rating. Running the motor near its peak limit for extended periods can cause excessive heating or drive trips.
Before commissioning, verify continuous torque, peak duration, current limits, and the machine’s actual load profile.
❗ Warning 2: Verify Feedback and Drive Compatibility
The M-3422C-LN-16D’s exact feedback configuration must be confirmed before pairing it with a replacement drive. Encoder type, commutation signals, connector pinout, and feedback scaling can vary across motor configurations.
I’ve seen a mechanically compatible motor sit idle because the replacement drive could not interpret its feedback signals. Confirm the motor-drive combination before scheduling a production-line changeover.
❗ Warning 3: Check Shaft Geometry and Mechanical Loading
Do not assume that another Hudson motor—or a motor with a similar frame size—has identical shaft dimensions and mounting geometry. Verify shaft diameter, keyway, mounting pilot, and coupling alignment against the original assembly.
Misalignment can accelerate bearing wear and introduce vibration. Confirm allowable radial and axial loads before returning the axis to service.
Intent-Driven FAQ
Q1: What is the Teknic M-3422C-LN-16D used for?
The Teknic M-3422C-LN-16D is identified as a Hudson-series brushless DC servo motor for OEM motion-control applications. It is intended to provide controlled rotary motion when paired with a compatible servo drive.
Q2: What are the speed and torque ratings of the M-3422C-LN-16D?
A supplier listing reports 6000 RPM and 267.2 oz-in torque. However, the available listing does not establish all operating conditions or whether the torque figure represents peak or continuous output. Confirm the exact ratings with the OEM documentation before using them for application sizing.
Q3: Is the M-3422C-LN-16D compatible with my existing servo drive?
Compatibility cannot be established from the motor model alone. Confirm the drive’s supported motor characteristics, current limits, feedback interface, commutation requirements, and wiring configuration. Obtain OEM confirmation if the original drive documentation does not identify this exact motor.
Q4: Can I replace the M-3422C-LN-16D without changing the machine’s PLC program?
A motor-only replacement does not ordinarily erase the PLC program. However, servo-drive parameters, feedback scaling, homing offsets, and motion tuning may require verification. Back up the existing configuration and confirm the replacement’s feedback characteristics before re-enabling the axis.
Q5: Can the Teknic M-3422C-LN-16D be hot-swapped?
Do not assume hot-swap capability. Isolate the drive, follow the machine’s lockout procedure, and observe the manufacturer’s DC bus discharge requirements before disconnecting motor or feedback wiring. Verify the machine’s safe state before performing the replacement.
Q6: Is the M-3422C-LN-16D still available from Teknic?
Current factory availability and lifecycle status have not been independently confirmed. Buyers should verify OEM availability directly with Teknic. Surplus and refurbished inventory may offer another sourcing route, but condition, traceability, and warranty terms should be assessed individually.
Q7: What warranty should I expect when purchasing a surplus M-3422C-LN-16D?
Warranty coverage depends on the seller and the unit’s condition. Request written confirmation of the warranty period, DOA coverage, exclusions, return authorization process, and responsibility for international return shipping. Do not assume a surplus motor carries the original OEM warranty.
Procurement Conclusion
The Teknic M-3422C-LN-16D is identified as a Hudson-series brushless DC servo motor for industrial motion-control applications. Supplier-published data provides an initial reference for speed, current, and torque, but those values should be verified before engineering approval.
For replacement procurement, prioritize:
- Exact model and nameplate verification.
- Confirmed motor-drive and feedback compatibility.
- Verified shaft and mounting dimensions.
- Documented functional test results.
- Written inventory condition and warranty terms.
Recommended listing position: Teknic M-3422C-LN-16D Hudson Brushless DC Servo Motor — Industrial Motion-Control Replacement.
Clearly disclose the actual unit’s condition, verified ratings, included accessories, test status, and warranty coverage. Avoid claiming guaranteed interchangeability or performance improvements without supporting OEM documentation.
