1. Product Overview
The Homend DC12V 20-inch Stroke Linear Actuator (Model MO-017) is designed to provide controlled linear motion for various applications. This device converts rotational motion from a DC motor into linear push/pull motion, making it suitable for tasks requiring precise positioning and force. It features a robust aluminum alloy construction and is equipped with an internal limit switch for automatic stopping at stroke ends.
This actuator is commonly used in automotive, medical, and engineering industries, as well as for applications such as massage sofas, recliners, TV lifts, lifting tables, and electric window openers.
2. Safety Information
- Load Capacity: Do not exceed the maximum load capacity of 225 lbs (900N). Exceeding this limit can cause damage to the actuator and potentially lead to injury.
- Power Supply: Use only a 12V DC power adapter. Connecting to an incorrect voltage can damage the motor.
- Water Resistance: The actuator is IP54 rated, meaning it is splash-proof and dustproof. However, it is not completely waterproof. Avoid submerging the unit or exposing it to heavy water spray. Water droplets are strictly prohibited from entering the interior of the motor, as this may result in motor burnout.
- Electrical Connections: Ensure all electrical connections are secure and properly insulated to prevent short circuits.
- Moving Parts: Keep hands and clothing clear of moving parts during operation to prevent pinching or entanglement.
- Installation: Ensure the actuator is securely mounted using the provided brackets to prevent accidental detachment during operation.
3. Product Specifications
| Specification | Value |
|---|---|
| Model Number | MO-017 |
| Input Voltage | DC 12V |
| Stroke Length | 500mm (20 inches) |
| Retracted Length | 605mm (23.8 inches) |
| Extended Length | 1105mm (43.5 inches) |
| Travel Speed | 10 mm/s (0.39 inches/sec) |
| Maximum Load | 900N (225 lbs) |
| Maximum Current Draw | 3 Amps |
| Noise Level | Below 50 dB |
| Protection Class | IP54 (Splash-proof and dustproof) |
| Material | Aluminum Alloy, Alloy Steel |
| Item Weight | 3.59 pounds (1.63 kg) |
| Product Dimensions | 0.79 x 0.79 x 0.79 inches (Actuator body, excluding stroke) |
Note: After connecting the installation brackets at both ends, the actual length will increase slightly. Consider bracket dimensions for strict size requirements.
Image: Homend Linear Actuator showing retracted length (605mm/23.8") and extended length (1105mm/43.5") with a 500mm/20" stroke length.
Image: Illustration of the linear actuator's low noise level, comparing it to common sounds. The actuator operates below 50 dB.
Image: Homend Linear Actuator with water droplets, indicating its IP54 splash-proof and dustproof rating for outdoor use.
4. Package Contents
Verify that all items are present and undamaged upon opening the package.
- 1 x Homend DC12V 20-inch Linear Actuator
- 2 x Mounting Brackets
Image: Detailed dimensions of the mounting bracket, including hole sizes (6mm/0.24" and 8mm/0.31" diameter holes) and overall bracket measurements.
5. Setup and Installation
Follow these steps for proper installation of your linear actuator.
5.1 Mounting the Actuator
- Identify the desired mounting location for your application. Ensure the surface is stable and can support the actuator's weight and operational forces.
- Attach the two provided mounting brackets to the ends of the linear actuator using appropriate fasteners (not included).
- Securely fasten the actuator, with brackets attached, to your application structure. Ensure the actuator is aligned correctly for the intended linear motion.
Image: Visual guide demonstrating how to install the linear actuator using the provided mounting brackets and pins.
5.2 Electrical Connection
The actuator operates on a 12V DC power supply. It has two wires for connection.
- Prepare to connect the two wires of the actuator to a 12-volt battery or a suitable 12V DC power supply.
- To make the actuator extend: Connect the blue wire to the positive (+) terminal and the grey wire to the negative (-) terminal of the 12V DC power source.
- To make the actuator retract: Reverse the terminal connections. Connect the blue wire to the negative (-) terminal and the grey wire to the positive (+) terminal.
- For simplified operation, it is recommended to use a reverse polarity relay or switch (not included) with your 12V DC power supply. This allows for easy extension and retraction by pressing a switch, eliminating the need to manually reverse wire connections.
Image: A recommended wiring diagram showing the linear actuator connected to a DC power source via a controller (not included) for simplified operation.
6. Operating Instructions
Once properly installed and connected to a 12V DC power source, the actuator can be operated as follows:
- Extension: Apply 12V DC power with correct polarity (blue to positive, grey to negative) to extend the actuator rod.
- Retraction: Reverse the polarity of the 12V DC power supply (blue to negative, grey to positive) to retract the actuator rod.
- Automatic Stop: The actuator features a pre-installed internal limit switch. It will automatically stop when it reaches its fully extended or fully retracted position. The internal limit switch is not adjustable.
- Holding Position: The actuator will hold its position when power is removed.
7. Maintenance
To ensure the longevity and optimal performance of your Homend linear actuator, follow these simple maintenance guidelines:
- Cleaning: Wipe the exterior of the actuator with a dry cloth to remove dust and debris. Do not use harsh chemicals or abrasive cleaners.
- Inspection: Periodically inspect the actuator for any signs of wear, damage, or loose connections. Check the mounting brackets for security.
- Lubrication: The internal components are pre-lubricated and generally do not require additional lubrication under normal operating conditions.
- Environmental Protection: While IP54 rated, avoid prolonged exposure to extreme weather conditions or environments with excessive moisture or dust to prevent premature wear.
8. Troubleshooting
If you encounter issues with your linear actuator, refer to the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| Actuator does not move | No power supply Incorrect wiring polarity Overload condition Damaged motor/wiring | Check 12V DC power source connection. Verify wiring polarity (blue to positive for extend, reverse for retract). Reduce load to below 225 lbs (900N). Inspect wiring for damage. If motor is damaged, replacement may be necessary. |
| Actuator moves partially or erratically | Insufficient power Loose connections Obstruction in path | Ensure stable 12V DC power supply. Tighten all electrical connections. Check for any physical obstructions preventing full travel. |
| Actuator is noisy during operation | Normal operating sound Excessive load Mechanical issue | A certain level of operational noise (below 50 dB) is normal for linear actuators. Ensure load does not exceed maximum capacity. If noise is unusual or excessive, inspect for loose parts or internal damage. |
| Actuator does not stop at ends of stroke | Internal limit switch failure | The internal limit switch is pre-installed and not adjustable. If it fails, the actuator may require replacement. |
9. Warranty Information
Specific warranty details for the Homend DC12V 20-inch Stroke Linear Actuator (Model MO-017) are not provided in the product information. Please refer to the retailer or manufacturer's official website for any applicable warranty terms and conditions.
10. Support and Contact Information
For technical support, inquiries, or assistance with your Homend DC12V 20-inch Stroke Linear Actuator, please contact the retailer from whom you purchased the product. Alternatively, you may visit the official Homend brand store on Amazon or their corporate website for general information and potential contact options.
Homend Store Link: Visit the Homend Store on Amazon