products details

Home Products

Casun Captive Stepper Motor Micro NEMA 8 21000 External Linear Actuator

Brand Name:	Casun
Model Number:	B20SHD4353-C38L
MOQ:	1PC
Price:	$26-$31
Payment Terms:	D/A,T/T,L/C,D/P
Supply Ability:	40000+PCS+Month

Detail Information

Product Description

Detail Information

Place of Origin:

CHINA

Certification:

CE,ROHS,ISO

Customized:

The Motor Can Be Designed &manufactured With Customized Request.

Packaging Details:

Carton:38x29xc14m

Highlight:

NEMA 8 21000 External Linear Actuator

Micro NEMA 8 21000

Casun Captive Stepper Motor

Product Description

Casun Captive Stepper Motor Micro NEMA 8 21000 External Linear Actuator

This motor is a NEMA 8 Captive Stepper Motor Linear Actuator, featuring a 1.8° step angle, NEMA 8 frame size, 0.24A rated current, and a durable Tr3.5x4 lead screw. Its reliable thrust performance, compact design, and customizable options make it ideal for automation equipment, medical instruments, and miniature robotics that require accuracy and efficiency.

Firt The 20mm Hybrid Stepper Motor Series delivers powerful holding torque in compact sizes. When paired with a microstepping driver, it reduces vibration and achieves higher step resolution. Available in standard configurations or customizable to your specifications.

Key Features

Bipolar or unipolar versions available
Hybrid stepper construction for enhanced performance
Single or double shaft options
CE and RoHS compliant
Custom configurations available upon request

Dimensions

Motor Specifications

Step Angle	1.8°
Frame Size	20 mm
Number of Phase	2 Phase
Rated Current	0.24 A
Mini Thrust	0.5kg
Resistance	22 Ω
Inductance	6.0 mH
Rotor Inertia	2 g-cm²
Motor Weight	0.1 kg
Lead Screw	Tr3.5X4
Connection	Bipolar

Operating Specifications

Maximum Temperature	80°C
Ambient Temperature	-20°C to 50°C
Storage Temperature	-20°C to 100°C
Humidity Range	85% or less (non-condensing)
Magnet Wire Insulation	Class B 130°C
Insulation Resistance	100M Ohm at 500 VDC
Dielectric Strength	500 VDC for 1 min
Shaft Radial Play	0.02Max. (450g-load)
Shaft Axial Play	0.08Max. (450g-load)
Max. Radial Force	28N (20mm from flange)
Max. Axial Force	10N

Torque Curves

Available Models

Model	Holding Torque	Step Angle	Length	Shaft Type	Rated Current
35SHD0307-20	80mN.m	1.8°	20mm	Round Shaft	0.4A
35SHD0001-20	100mN.m	1.8°	26mm	Round Shaft	0.4A
35SHD0102-20B	150mN.m	1.8°	34mm	D Shaft	0.75A
35SHD0801-20B	280mN.m	1.8°	40mm	D Shaft	0.5A

Dimensions by Model

Motor Length	Stroke	Dimension A	Dimension B
27.5 mm	25.4 mm	27.5 mm	17.2 mm Max
	33.9 mm	22 mm Max	22 mm Max
	40.2 mm	28 mm Max	28 mm Max

Custom Solutions Available

If our standard motors don't meet your requirements, we can customize motors to your exact specifications including:

Special shaft configurations
Custom winding parameters
Modified installation dimensions
Custom travel and linear travel per step

Get a Quote

Tags:

Hybrid Stepper Motor

NEMA 8 Stepper Motor

NEMA 11 Stepper Motor

NEMA 14 Stepper Motor

NEMA 16 Stepper Motor

NEMA 17 Stepper Motor

NEMA 23 Stepper Motor

NEMA 24 Stepper Motor

NEMA 34 Stepper Motor

NEMA 6 tepper Motor

Geared Stepper Motor

NEMA 8 Geared Stepper Motor

NEMA 11 Geared Stepper Motor

NEMA 14 Geared Stepper Motor

NEMA 17 Geared Stepper Motor

NEMA 23 Geared Stepper Motor

NEMA 24 Geared Stepper Motor

NEMA 34 Geared Stepper Motor

Lead Screw Stepper Motor

NEMA 8 Stepper Motor With Lead Screw

NEMA 11 Stepper Motor With Lead Screw

NEMA 14 Stepper Motor With Lead Screw

NEMA 16 Stepper Motor With Lead Screw

NEMA 17 Stepper Motor With Lead Screw

NEMA 23 Stepper Motor With Lead Screw

Non Captive Stepper Motor

Captive Stepper Motor

Integrated Stepper Motor

Ball Screw Stepper Motor

NEMA 17 Ball Screw

NEMA 23 Ball Screw

Close Loop Stepper Motor

NEMA 8 Close Loop Motor

NEMA 11 Close Loop Motor

NEMA 17 Closed Loop Stepper Motor

NEMA 23 Closed Loop Motor

NEMA 24 Closed Loop Stepper Motor

NEMA 34 Closed Loop Motor

Special Shaft Stepper Motor

Dual Shaft Stepper Motor

Hollow Shaft Stepper Motor

Brake Stepper Motor

Multilayer Motor

Pancake Stepper Motor

Waterproof Stepper Motor

High Temp Stepper Motor

PM Stepper Motor

DC Brushless Motor

Stepper Motor Controller Driver

2 Phase Stepper Motor Driver

3 Phase Stepper Motor Driver

Closed Loop Stepper Driver

Stepper Motor Accessories