NEMA8 20mm External Linear Actuator/Linear Motor/Screw Motor Series

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NEMA8 20mm External Linear Actuator/Linear Motor/Screw Motor Series

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Product Description

NEMA8 20mm External Linear Actuator Series

The NEMA 8 20mm External Linear Actuator offers powerful holding torque in a variety of sizes, designed for high-precision linear motion applications.

Key Features

✔ Bipolar or unipolar versions available

✔ 1.8° or 0.9° stepper Angle available

✔ Available in single or double shaft versions

✔ High precision external screw design

Technical Characteristics

Step Angle Accuracy	±5%
Resistance Accuracy	±10%
Insulation Class	B
Inductance Accuracy	±20%
Temperature Rise	80°C Max
Ambient Temperature	-20°C~+50°C
Insulation Resistance	100MΩ Min., 500VDC
Dielectric Strength	500VAC for one minute
Shaft Radial Play (450g-load)	0.02mm Max
Shaft Axial Play (450g-load)	0.08mm Max

Product Specifications

P/N	Size (mm)	NEMA	Holding Torque (N cm)	Current/Phase (A)	Resistance (Ohm)	Inductance (mH)	Length "L" (mm)	Thread Dia (mm)	Thread Lead (mm)	Travel/Step (mm)	Weight (kg)
WLS2030-0604-T3.5X0.61	20	8	1.8	0.6	6.5	2.2	30	3.5	0.6096	0.00305	0.06
WLS2040-0604-T3.5X1	20	8	3.2	0.6	6	2	40	3.5	1	0.005	0.1
WLS2040-0604-T3.5X1.22	20	8	3.2	0.6	6	2	40	3.5	1.2192	0.0061	0.1
WLS2040-0604-T3.5X2.44	20	8	3.2	0.6	6	2	40	3.5	2.4384	0.01219	0.1
WLS2040-0604-T3.5X4	20	8	3.2	0.6	6	2	40	3.5	4	0.02	0.1
WLS2040-0604-T5X8	20	8	3.2	0.6	6	2	40	5	8	0.04	0.1

Dimensions & Technical Drawings

Applications

CNC Machining Parts

3D Printing / 3D Printer

Textile Manufacturing

Medical Imaging Devices

Disk Storage Systems

Automotive Machinery

Automation Equipment

Robotics Field

Packaging & Shipping

Price Terms:
Standard price: FCA price Incoterms 2020
CFR, CIF, CPT price terms available for customized orders.

Certifications & Detail Presentation

Frequently Asked Questions (FAQ)

1. What is the difference between bipolar and unipolar versions?

Bipolar motors generally offer higher torque at low speeds and are more efficient, while unipolar motors are easier to control with simpler driver circuits. Both options are available for this series.

2. Can the screw length and lead be customized?

Yes, we provide various thread diameters and leads as shown in the specification table. Custom lengths "L" and specific thread leads can be accommodated based on application requirements.

3. What are the main applications for NEMA 8 linear actuators?

Due to their compact 20mm size, they are ideal for precision medical imaging devices, 3D printers, CNC machining, robotics, and automation equipment requiring small-scale linear motion.

4. What is the temperature tolerance for these motors?

The actuators are designed to operate in ambient temperatures from -20°C to +50°C, with a maximum allowable temperature rise of 80°C during operation.

5. Does the actuator support double shaft configurations?

Yes, this series is available in both single and double shaft versions to support diverse mechanical design needs.

6. What insulation class do these motors belong to?

The NEMA 8 series uses Class B insulation, ensuring reliable performance and safety within specified electrical and thermal limits.