Pacific Scientific Powermax II P21NRXS-LNS-NS-03 NEMA 23 specification hybrid stepper motor

Product Model and Positioning

Powermax II is a high-performance NEMA 23 hybrid stepper motor launched by Pacific Scientific (Kollmorgen), featuring high torque, long life, and high rigidity. It is widely used in automation equipment, precision positioning, detection instruments, and other scenarios. Target model: P21NRXS-LNS-NS-03

Type: P=Standard Type

Size: 2=NEMA 23

Number of stacks: 1=Single stack

Installation: N=NEMA standard

Structure: R=Regular

Outgoing line: X=socket type

Winding: S=Customized

Rotor: L=standard inertia

Axis configuration: N=single output axis

Axis machining: S=Smooth

Encoder: NS=No feedback

Core Structure and Advantages’

Advantages of structural item specifications

0.375 inch maximum shaft diameter in NEMA 23, stronger resistance to radial/axial loads

Bearing 30mm specification L10 lifespan increased by 400%, reducing downtime

Stator integrated injection molding packaging with good heat dissipation and high reliability

High torque density of rotor magnet neodymium iron boron

Precision grinding of air gap rotor+honing of stator with high positioning accuracy and low vibration

Insulation Class B (130 ℃), high temperature resistance, long service life

2-year industrial grade reliable guarantee

Electrical performance parameters (P21 single stack series)

Standard P21 series (single stack)

Winding wiring maintains torque (oz in/Nm), phase current (A), phase resistance (Ω), phase inductance (mH), rotor inertia (kg · m ² × 10 ⁻ ³)

A parallel 114/0.81 5.6 0.23 0.23 1.7

Series A 114/0.81 2.8 0.92 3.2 1.7

B Parallel 111/0.79 4.6 0.32 1.1 1.7

B series 111/0.79 2.3 1.28 4.4 1.7

C Parallel 116/0.82 3.5 0.53 2.3 1.7

C series 116/0.82 1.75 2.12 9.2 1.7

D Parallel 109/0.77 1.51 2.61 10.3 1.7

D series 109/0.77 0.76 10.4 41.2 1.7

Working temperature: winding maximum 130 ℃

Thermal resistance: 5.5 ℃/W

Weight: 1.5kg

Wiring method

The motor supports three types of outgoing lines: 4-wire, 6-wire, and 8-wire

4-wire: pure bipolar drive

6-wire: Single pole drive

8-wire: switchable between series/parallel connection

The socket type connector has strong retention force and can be optionally equipped with a flying wire connector (GW series)

The phase sequence is based on the viewing direction of the motor installation surface

Optional features

Low inertia rotor (J)

Inertia reduction * * ≈ 20%**

Acceleration increase * * ≈ 20% -30%**

Suitable for high-speed start stop scenarios

Encoder feedback

Standard configuration: Agilent HEDS 5600

Resolution: 500/512PPR

Output: ABZ orthogonal signal

Axis customization

Dual output shaft (D)

Shaft end milling/machining

Sigmax ®  Enhanced version (M-series)

Using samarium cobalt magnetic steel

Higher torque and stronger acceleration

Usage restrictions

It is strictly prohibited to operate beyond the rated current, as it may cause demagnetization

Must match stepper driver current with subdivision

Environmental temperature: * * 25 ℃ * * Calibration, high temperature requires derating

Ensure natural heat dissipation space when there is no fan