1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Twotrees Air Assist Pump, Model 630203018. This device is designed to enhance the performance of compatible laser engravers, specifically the ATOMSTACK A5 Pro and A10 Pro models, by providing a directed airflow during engraving and cutting processes.
The air assist system delivers a consistent airflow to clear smoke and debris from the laser's path during operation. This action helps to maintain laser efficiency, allowing for cleaner cuts and deeper engraving, and can contribute to faster processing times. By directing airflow onto the cutting surface, the air assist helps to rapidly dissipate heat, minimizing material deformation and discoloration, and resulting in smoother cut edges and more precise engraving patterns. Additionally, the stable airflow helps to clear airborne debris and smoke away from the laser head's lens, reducing contamination and extending the lifespan of the laser module.
2. Package Contents
Please verify that all components are present before proceeding with installation:
- Twotrees Air Assist Pump Unit (Model A300 Air Pump)
- Connection Cable
- Mounting Hardware (screws, nuts)
- Air Nozzle
- Air Hose

Image 2.1: Twotrees Air Assist Pump unit and connection cable.
3. Specifications
| Brand | Twotrees |
| Model Number | 630203018 |
| Product Name | A300 Air Pump |
| Product Dimensions | 1 x 1 x 1 cm |
| Item Weight | 630 g |
| Compatibility | ATOMSTACK A5 Pro, ATOMSTACK A10 Pro Laser Engravers |
4. Safety Information
Please read and understand all safety instructions before installing or operating the Twotrees Air Assist Pump. Failure to follow these instructions may result in injury or damage to the equipment.
- Electrical Safety: Ensure the power supply is disconnected from the laser engraver before performing any installation or maintenance. Do not operate the air assist pump with damaged cables or if it has been exposed to moisture.
- Laser Safety: Always wear appropriate laser safety glasses when operating the laser engraver, even with the air assist in use. The air assist does not eliminate the need for personal protective equipment.
- Ventilation: Operate the laser engraver and air assist in a well-ventilated area to prevent the accumulation of smoke and fumes.
- Secure Installation: Ensure the air assist pump and all its components are securely mounted to prevent movement or detachment during operation.
5. Installation Guide
Follow these steps to install the Twotrees Air Assist Pump onto your compatible laser engraver. Refer to the diagram below for visual guidance.

Image 5.1: Installation diagram for the Twotrees Air Assist Pump.
- Prepare the Laser Module: Remove the original screws from the laser module's fan cover. These screws will be replaced with the M3x40 screws provided in the air assist kit.
- Attach Base Plate: Position the air assist base plate under the motor of the laser module. Align the holes on the base plate with the existing screw holes on the laser module. Secure the base plate using the nuts and M3x40 screws supplied with the kit. Note: Ensure the four holes in the base plate protrude in the opposite direction of the nut.
- Mount Fan Cover: Attach the fan cover to the newly installed base plate using four M3x4 screws. Tighten securely to complete this step of the installation.
- Insert Air Nozzle: Carefully place the air nozzle into the bottom portion of the laser head. Ensure the notched part of the air nozzle is facing the air assist fan.
- Secure Air Nozzle: Once the air nozzle is correctly positioned, use two M3x6 screws to secure it firmly in place.
- Connect Air Hose: With the air nozzle installed, connect one end of the air hose to the fan outlet and the other end to the mouthpiece of the air assist pump. Ensure both connections are snug to prevent air leakage.
6. Operating Instructions
Once the Twotrees Air Assist Pump is installed, follow these guidelines for optimal operation:
- Power On: Connect the air assist pump to the laser engraver's designated port or a compatible power source as per your engraver's instructions.
- Activation: The air assist pump typically activates automatically when the laser engraver begins an operation that requires airflow, or it may have a manual switch depending on your engraver model.
- Airflow Control: Some laser engravers or air assist models may offer adjustable airflow. Adjust the airflow as needed for different materials and engraving/cutting depths. Higher airflow is generally beneficial for cutting thicker materials or reducing charring.
- Monitoring: Observe the engraving or cutting process. The air assist should effectively clear smoke and debris, resulting in cleaner lines and reduced material discoloration.
- Low Noise Operation: The air assist pump is designed for low noise and minimal vibration during operation. This design ensures that the pump's activity does not interfere with the precise positioning of the laser head, maintaining accuracy for continuous cutting and detailed patterns.
7. Maintenance
Regular maintenance helps ensure the longevity and optimal performance of your Twotrees Air Assist Pump and your laser engraver.
- Clean Air Nozzle: Periodically inspect and clean the air nozzle to prevent blockages from debris or residue. A blocked nozzle can reduce airflow effectiveness.
- Check Air Hose: Ensure the air hose is free from kinks, punctures, or blockages. A damaged hose can impair airflow.
- Laser Lens Protection: The air assist system helps protect the laser lens by blowing away debris. However, it is still recommended to regularly inspect and clean the laser lens according to your laser engraver's manual to ensure optimal performance and extend its lifespan.
- Pump Unit Cleaning: Keep the exterior of the air assist pump unit clean and free of dust. Do not attempt to disassemble the pump unit for internal cleaning unless specifically instructed by the manufacturer.
8. Troubleshooting
If you encounter issues with your Twotrees Air Assist Pump, consider the following common troubleshooting steps:
- No Airflow:
- Check if the pump is properly connected to its power source and the laser engraver.
- Inspect the air hose for kinks or blockages.
- Ensure the air nozzle is not clogged with debris.
- Weak Airflow:
- Verify all connections (hose to pump, hose to nozzle) are secure and airtight.
- Clean the air nozzle and check for partial blockages.
- Excessive Noise/Vibration:
- Ensure the pump unit is securely mounted and not vibrating against other surfaces.
- Check for any loose components or foreign objects near the pump's fan or motor.
- Poor Engraving/Cutting Quality (despite airflow):
- While air assist improves quality, ensure your laser engraver's settings (power, speed, focus) are appropriate for the material being processed.
- Clean the laser lens of your engraver.
If problems persist after attempting these steps, please contact Twotrees customer support for further assistance.
9. Warranty and Support
For information regarding warranty coverage, technical support, or replacement parts for your Twotrees Air Assist Pump, please refer to the warranty card included with your product or visit the official Twotrees website. Please have your model number (630203018) and purchase information ready when contacting support.