42 Series Hybrid Stepper Motor

Overview

The 42 Series Hybrid Stepper Motor is designed for applications requiring higher holding torque and a larger motor frame than compact stepper motor series. With a 42 mm class frame, multiple motor lengths, and both 1.8° and 0.9° step-angle options, the series provides flexible solutions for different motion-control requirements.

The series includes 2-phase and 4-phase configurations with different current, resistance, inductance, holding torque, motor mass, and motor length options. This makes it suitable for equipment where positioning performance, installation dimensions, and available motor torque need to be considered together.

Key Specifications

• Step Angle – 1.8° / 0.9°
• Phase Configuration – 2-phase / 4-phase
• Step Angle Tolerance – ±5%
• Holding Torque – Up to 0.68 N·m
• Maximum Temperature – 80°C Max
• Ambient Temperature – -20°C to +50°C
• Insulation Resistance – 100 MΩ min. @ 500 VDC
• Dielectric Strength – 500 VAC for 1 minute
• Resistance Tolerance – ±10%
• Inductance Tolerance – ±20%

Key Features

1. Higher Holding Torque

The 42 Series provides holding torque options from approximately 0.21 to 0.68 N·m in the listed configurations, making it suitable for motion-control applications requiring greater torque than compact frame motors.

2. Multiple Motor Lengths

Motor lengths in the available configurations range from approximately 30.5 mm to 60 mm, allowing the motor to be selected according to available installation space and torque requirements.

3. 1.8° and 0.9° Step-Angle Options

The series includes standard 1.8° models as well as 0.9° configurations for applications requiring finer incremental positioning.

4. Flexible Electrical Configurations

Different combinations of phase current, resistance, and inductance are available to match different stepper motor drives and control requirements.

5. Compact 42 mm-Class Frame

The 42 Series uses a 42 mm-class motor frame with a compact mounting footprint, providing a practical balance between installation dimensions and motor torque.

Applications

The 42 Series is suitable for motion-control equipment requiring a balance of compact installation dimensions, higher holding torque, and precise incremental positioning.

Technical Specifications

The 42 Series Hybrid Stepper Motor is available in multiple electrical and mechanical configurations. The following specifications are based on the available 42 Series models and configuration data.

Parameter	Specification
Step Angle	1.8° / 0.9°
Step Angle Tolerance	±5%
Number of Phase	2-phase / 4-phase
Holding Torque	0.21–0.68 N·m*
Maximum Temperature	80°C Max
Ambient Temperature	-20°C to +50°C
Insulation Resistance	100 MΩ min. @ 500 VDC
Dielectric Strength	500 VAC, 1 minute
Resistance Tolerance	±10%
Inductance Tolerance	±20%
Motor Length	Approx. 30.5–60 mm*

Note: values vary by motor model and configuration.

Model Specifications

Model	Step Angle	Phase	Current / Phase (A)	Resistance / Phase (Ω)	Inductance / Phase (mH)	Holding Torque (N·m)	Rotor Inertia (g·cm²)	Motor Mass (kg)	Motor Length (mm)
42HJA431-1600-	1.8°	2	0.5	9.0	12.7	0.21	—	0.21	30.5
42HJA433-1700-	1.8°	2	1.3	5.2	7.0	0.38	—	0.21	33
42HJB434-3200-	1.8°	2	1.68	1.8	2.6	0.29	—	0.22	33.5
42HJA435-1500-	0.9°	2	0.8	5.5	9.0	0.24	—	0.28	35.2
42HJB439-2000-	1.8°	2	1.5	2.5	3.0	0.42	—	0.30	39
42HJA447-3330-	1.8°	2	1.5	2.7	5.2	0.62	—	0.37	39
42HJA447-7004-	1.8°	2	1.68	1.6	3.3	0.44	—	0.40	47
42HJB460-1500-	1.8°	2	1.0	4.5	12	0.68	—	0.50	60

Dimensions & Wiring

Refer to the dimensional drawings and wiring information below when selecting and integrating the 42 Series into your equipment. The drawings provide key information on the motor frame dimensions, shaft dimensions, mounting holes, overall length, and wiring configuration.

Torque-Speed Characteristics

The torque-speed curve below shows the representative performance of a 42 Series sample motor under the specified test conditions. Actual torque characteristics may vary depending on the motor model, drive, supply voltage, current, and operating conditions.

Representative torque-speed curve for reference. Please contact us for detailed performance data of a specific motor model.

FAQ

1. What is the typical step angle of the 42 Series Hybrid Stepper Motor?

A: The 42 Series is available mainly with a 1.8° step angle, with selected 0.9° configurations for applications requiring finer incremental positioning.

2. How much holding torque can the 42 Series provide?

A: The listed 42 Series configurations provide holding torque from approximately 0.21 N·m up to 0.68 N·m, depending on the specific motor model and electrical configuration.

3. How do I select the right 42 Series motor?

A: Motor selection should consider the required holding torque, step angle, motor length, phase current, resistance, inductance, available installation space, and compatibility with the stepper motor drive. Contact us with your application requirements and we can help match a suitable configuration.