Description
The Pacific Scientific (now part of Kollmorgen) E33NRHA-LNN-NS-00 is a high-performance, NEMA 34 (86 mm) hybrid stepper motor designed for precision motion control. The “E Series” is known for its Sigmax technology, which provides significantly higher torque and acceleration compared to standard hybrid steppers.
Product Parameters (Datasheet)
- Model Number: E33NRHA-LNN-NS-00
- Frame Size: NEMA 34
- Motor Type: High-Torque Hybrid Stepper (Sigmax Technology)
- Stack Length: 3-Stack (indicates the motor’s power/length rating)
- Step Angle: 1.8° (200 steps per revolution)
- Holding Torque: Approximately 1,100 to 1,500 oz-in (depending on drive current and wiring)
- Winding Type: Standard High-Voltage Winding
- Shaft Configuration: Single smooth shaft (standard)
- Termination: Receptacle/Connector style (LNN indicates no lead wires, typically a terminal box or specific plug)
- Mounting: Standard NEMA 34 flange
PACIFIC E33NRHA-LNN-NS-00
PACIFIC E33NRHA-LNN-NS-00
PACIFIC E33NRHA-LNN-NS-00
Country of Origin
This precision motor was manufactured in the United States by Pacific Scientific, engineered for long-term durability in high-duty cycle industrial environments.
Application Fields
The E33NRHA-LNN-NS-00 is utilized in applications where high torque and rapid start/stop cycles are required:
- Packaging Machinery: Indexing conveyors and labeling head drives.
- CNC Machining: Driving X-Y-Z axes on mid-sized milling machines or plasma cutters.
- Medical Equipment: Large-scale fluid pumps and laboratory automation systems.
- Textile Industry: Controlling tensioners and pattern-weaving mechanisms.
Product Usage Instructions
- Mounting: Secure the motor to a rigid metal frame to act as a heat sink. Ensure the NEMA 34 pilot is correctly seated to maintain shaft alignment with the load.
- Wiring Configuration: Depending on your drive, wire the motor in Bipolar Series (for higher torque at low speeds) or Bipolar Parallel (for higher torque at high speeds).
- Current Setting: Adjust your stepper drive’s current output to match the motor’s rated current. Over-driving will cause excessive heat, while under-driving will result in lost steps.
- Resonance Avoidance: Use microstepping (e.g., 1/8 or 1/16 step) on your drive to minimize mechanical resonance and ensure smooth motion at low speeds.
- Cooling: Ensure adequate airflow around the motor body. High-torque steppers like the E series can reach surface temperatures of 80°C or higher during continuous operation.
Product Technical Description
The E33NRHA-LNN-NS-00 features Pacific Scientific’s patented Sigmax technology. Technically, this involves the use of flux-concentrating permanent magnets in the stator. By concentrating the magnetic flux that would otherwise be lost in a standard motor, the E series produces up to 25% to 40% more torque. This results in higher acceleration rates and the ability to drive larger loads without stepping up to a larger frame size. The “LNN” designation typically indicates a specific electrical interface configuration meant for rugged industrial integration.
Q&A (Common Questions)
Q: Can I use this motor with a standard 24V DC stepper drive? A: While it will spin, NEMA 34 motors like the E33 series perform significantly better with high-voltage drives (e.g., 48V to 80V DC or 120V AC) to overcome the motor’s inductance at higher speeds.
Q: Is the shaft keyed? A: The standard “-NS” suffix usually indicates a smooth shaft. If you require a keyway, it would typically have a different suffix (like “-NK”).
Q: What is the benefit of the 3-stack design? A: The stack length refers to the number of rotor/stator sections. A 3-stack motor is longer and provides much higher holding torque than a 1-stack or 2-stack motor of the same frame size.
Q: Can this motor be used in a washdown environment? A: The standard E series is not IP65 rated. It should be used in dry industrial environments or protected by a secondary enclosure if moisture is present.
Similar Model Recommendations
- Pacific Scientific E33NRHT (High-torque variant)
- Pacific Scientific E32NRHA (2-stack shorter version)
- Pacific Scientific K31 series (Smaller NEMA 23 alternative)
- Kollmorgen KM series (Modern successor for high-torque applications)
- Pacific Scientific E33NRFA (Lead-wire termination variant)
For technical support or to procure the Pacific Scientific E33NRHA-LNN-NS-00, please contact our motion control specialists.
