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Introduction to the Stepper Motor Linear Actuator Attachment
The demand for micro linear actuators has been growing steadily, largely due to the need for increased productivity in confined spaces. To cater to this trend, Oriental Motor has developed a compact linear actuator that can be easily attached to off-the-shelf stepper motors.
According to Verified Market Reports, the global Micro Linear Actuators Market size was valued at USD 1.50 billion in 2023 and is projected to reach USD 4.20 billion by 2030, with a Compound Annual Growth Rate (CAGR) of 15.85% during the forecast period from 2023 to 2030.
Claude 3.5 Sonnet suggests that the U.S. micro linear actuators market might see a CAGR of around 9-11% over the next decade. This would equate to a total growth of about 140-180% over the 10-year span.
This growth is expected to be driven by increasing adoption in sectors such as medical and healthcare, industrial automation and robotics, consumer electronics, automotive (electric and autonomous vehicles), and aerospace/defense industries.
Here’s what we’ll cover:
- What is the Stepper Motor Linear Actuator Attachment?
- Installation
- What Makes It Unique?
- Compatible Lineup
- Application Examples
**What is the Stepper Motor Linear Actuator Attachment?**
The Stepper Motor Linear Actuator Attachment is essentially a mounting adapter that includes a lead screw and a resin nut with high wear resistance. It can be easily attached to standard stepper motors, similar to a gearhead, and converts rotational motion into precise linear motion, much like an external type stepper motor linear actuator.
[Image: Mounting adapter for linear actuator for stepper motors]
In this example, we showcase the Stepper Motor Linear Actuator Attachment by itself and a finished assembly with a PKP Series 42 mm frame size stepper motor.
**Installation**
Since the Stepper Motor Linear Actuator Attachment doesn’t come with an anti-spin mechanism, customers need to provide one themselves. Without it, the nut will simply spin in place without moving. Below is an example of a completed assembly featuring the Stepper Motor Linear Actuator Attachment, an anti-spin mechanism, support bearings, and a linear guide. Note that the product does not include limit switches or sensors, so these will need to be installed separately, such as on the linear guide.
[Image: Installation example for linear actuator attachment]
**What Makes it Unique?**
The Stepper Motor Linear Actuator Attachment can be mounted directly onto a stepper motor output shaft without requiring a coupling mechanism. This reduces the number of required components, saves space, and speeds up the design process compared to custom-built linear actuators.
For instance, in the example below, the number of components was reduced from 9 to 6 by eliminating the coupling, fixed-side bearing, fixed-side block, and a standalone leadscrew.
[Image: LA42-C-feature-compact-design]
**Introducing The Stepper Motor Linear Actuator Attachment**
[Video Embed]
At present, the Stepper Motor Linear Actuator Attachment is available for stepper motors in 42 mm and 30 mm frame sizes, with stroke lengths ranging from 30~300 mm, capable of transporting up to 10 kg (or 100 N thrust), and achieving speeds up to 180 mm/s. The repetitive positioning accuracy is ±0.05mm.
**Compatible Lineup**
Various types of PKP Series high-torque stepper motors and CVD Series bipolar microstepping drivers can be combined to create different types of stepper motor linear actuators. The diagram below illustrates the possible combinations using our extensive product lineup.
[Image: LA attachment for compatibility list]
[Image: Linear Actuator Attachments Lineup]
**Stepper Motor Options**: PKP Series 2-Phase, PKP Series 5-Phase
**Compatible Frame Sizes**: 42 mm, 30 mm
[Table: PKP Series NEMA 23 stepper motor options]
**Driver Options**: CVD Series 2-Phase, CVD Series 5-Phase
[Table: CVD Series bipolar microstepping driver options]
Being the manufacturer of both the motor and the driver, Oriental Motor can offer unique solutions to enhance motor performance that other manufacturers cannot. For example, the CVD Series drivers were specifically designed for optimal performance with PKP Series stepper motors. Their current compensation control pairs actual motor winding data with unique driving algorithms to reduce vibration and improve torque for more consistent performance.
The Stepper Motor Linear Actuator Attachment enables various basic stepper motor linear actuator systems to be built by mixing and matching different combinations of PKP Series stepper motors, lead screws, and dedicated CVD Series drivers. If you’re looking for better specifications like higher load capacity, improved repetitive positioning accuracy, or built-in closed-loop absolute control, consider browsing our fully built, fully functional linear slide, linear cylinder, rack and pinion, or gripper systems.
**Application Examples**
For point-to-point applications where space is limited, such as syringe pumps and test tube transfer, the Stepper Motor Linear Actuator Attachment provides precise linear motion for less.
[Image: Stepper motor linear actuators on a syringe pump]
This application example demonstrates how three sets of stepper motors and linear actuator attachments provide precise linear motion for syringe pumps in a slim profile.
[Image: Stepper motor linear actuator on a test tube transfer application]
This application shows how a stepper motor and linear actuator attachment transfers test tubes linearly from one location to another. An external guide is recommended.
Have questions? Our team is ready and eager to address any queries you may have.
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