Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
3. Product Introduction (Anti-Template)
Many machines still rely on open-loop stepper motors for reliable, cost-effective positioning. The E33NCHA-LNN-NS-00 is a NEMA 34 E-series motor that uses Kollmorgen’s SIGMAX stator technology to deliver higher torque and better acceleration than conventional designs of the same frame size.
It features a smooth shaft, Class B insulation, and a system MS connector with parallel lead configuration. Plants and OEMs that standardized on the E series keep this catalog number available because a failed motor immediately stops the axis until a mechanical and electrical drop-in replacement is installed.
E33NCHA-LNN-NS-00
E33NCHA-LNN-NS-00
E33NCHA-LNN-NS-00
E33NCHA-LNN-NS-00
E33NCHA-LNN-NS-00
4. Key Technical Specifications
| Parameter | Value |
|---|---|
| Frame Size | NEMA 34 (3.38″ × 3.38″ flange) |
| Construction | SIGMAX, 3-stack |
| Shaft | Smooth |
| Step Angle | 1.8° (200 steps per revolution) |
| Step Accuracy | ±1.5 % |
| Holding Torque (parallel) | 6.64 Nm |
| Detent Torque | 0.45 Nm |
| Rated Current (parallel) | 8.6 A |
| Rotor Inertia | 1.77 kg·cm² |
| Connection | System MS connector, 4 leadwires (parallel) |
| Insulation | Class B |
| Max Radial Load | 156 N |
| Max Axial Load | 801 N |
5. Field Application & Technical Pitfalls (The Engineer’s Guide)
This motor is commonly used on packaging machines, indexing tables, labeling equipment, and other mid-torque positioning axes where open-loop steppers remain preferred for simplicity and cost. The SIGMAX design provides usable torque at higher speeds than older NEMA 34 motors.
Three pitfalls appear during replacement:
Wiring configuration – the motor is intended for parallel connection; wiring it in series halves the current rating and significantly reduces available torque.
Driver current setting – the drive must be set to the correct 8.6 A (or lower derated value) to avoid overheating or loss of torque.
Mechanical alignment – the smooth shaft requires a proper coupling or clamp; excessive radial or axial load beyond the published limits shortens bearing life.
One plant installed a replacement motor and experienced frequent stalls under load. The new motor was healthy; the drive had been left at the previous series-winding current setting. Raising the current to the parallel rating restored full performance.
6. Quality Control (QC) SOP & Transparency
- Inbound Verification – OEM labeling, part number, and date codes are photographed and checked against the packing list; any signs of prior field use are noted.
- Live Rig Testing – motor is powered with a compatible stepper drive, rotated through multiple revolutions, and checked for smooth operation and correct step response.
- Parameter Testing – winding resistance, insulation resistance, and holding torque (where fixtures allow) are verified.
- Final QA & Packaging – unit is sealed in protective packaging with desiccant, fitted with a QC-passed label showing test date and technician ID, then double-boxed for shipment.
7. Frequently Asked Questions (FAQ)
What type of motor is the E33NCHA-LNN-NS-00?
It is a NEMA 34 hybrid stepper motor from Kollmorgen’s E series with SIGMAX construction.
What is the holding torque?
6.64 Nm when connected in parallel.
What is the step angle?
1.8° (200 full steps per revolution) with ±1.5 % accuracy.
Does it have a keyed or smooth shaft?
This version has a smooth shaft.
What warranty comes with a new-surplus unit?
Twelve months from shipment against defects in materials and workmanship when installed within the published ratings.
How do I confirm the motor is healthy after installation?
Apply the correct drive current, verify free rotation with no binding, check that the motor holds position under load, and confirm smooth stepping across the required speed range without excessive heating or missed steps.
