
This manual offers comprehensive guidance on installing and operating the Air Assist Control kit. It is divided into four chapters:
1. Product Introduction
2. Installation on X Series
3. Installation on Hydra Series
4. Air Assist Operation Instructions
Critical Installation Notice
All accessory installations must comply with ONELASER technical specifications to ensure proper operation of the Air Assist Control system. Failure to comply will result in: performance degradation, reduced service life, increased maintenance costs and even permanent equipment damage.
Manual Usage Guidance
This manual outlines the technical installation standards. Be sure to read it completely before beginning operation. If you encounter any installation issues, contact technical support without delay.
The Air Assist Control is specifically designed for the ONELASER X / Hydra series. It provides enhanced air assist pressure control, enabling the machine to:

|
Name |
Parameter |
|
Dimensions (L×W×H) |
230×100×75 mm |
|
Weight |
Approx. 2.5 kg |
|
Gas Source Requirement |
Non-corrosive and non-flammable gas |
|
Max Input Pressure |
1.05 MPa / 152.28 psi |
|
Min Input Pressure |
0.5 MPa / 72.52 psi |
|
Operating Pressure Range |
0-0.7 MPa / 0-101.52 psi |
|
Operating Ambient Temp. |
±3%FS (0-50℃) |
|
Operating Ambient Humid. |
35%-85% RH |
|
Inlet/Outlet Port Size |
Ø 6 mm air hose |
* Due to pressure reduction as air enters the system, a 0.6 MPa supply may register as only 0.5 MPa on the digital pressure gauge. This pressure drop is considered normal if it falls within the expected range.


|
Number |
Name |
|
A |
Control Cable 1 (DB9 Female) |
|
B |
Control Extension Cable 2: Hydra-Series Only (5-Wire Port) |
|
C |
Air Filter Regulator |
|
D |
Cable Ties / Cable Tie Mounts / Adhesive Hook / 6mm to 6mm Adapter |
|
E |
Relays |
|
F |
Air Hose (2.8m) |
|
G |
Air Assist Kit |
A dry, clean gas source must be used, with an operating pressure range between 0-0.7 MPa. Strictly control the water and oil content in the compressed air. Failure to do so may clog the nozzle, contaminate optical lenses, and in severe cases, may cause a fire.
Using the Built-in Air Pump:
X-series devices come equipped with a built-in air pump. No installation is required by the user.
Note: The original air pump delivers lower output pressure, making it suitable for limited scenarios (e.g., thin sheet cutting). For processing a wider range of materials, using an external air compressor system is recommended for significantly improved processing results. Optimized gas source solutions and test data will be continuously updated on the official website. Stay tuned for updates.
Connecting an External Air Compressor:
Before connecting, power off the device and disconnect the Power Input located on the lower back of the device.
Important:
If you are using the XT device, these steps requires transforming the internal connections:



If you are using the XRF device, these steps requires transforming the internal connections:




Important: Disconnect the internal connector located inside the area of the right-side cover before removing the cover. Failure to disconnect it first may cause wiring damage.




Note: The magnet on the base is removable and can be reused (if needed) for securing materials.



2. LOW → Connect to the OUT 4 24V GND terminal on the TL Mainboard (locate the OUT4 marking on the board).

3. HIGH → First, disconnect the plugs currently connected to the OUT 5 24V GND terminal on the TL Mainboard (locate the OUT5 marking). These plugs are typically labeled 0V 12 and 24V 12. Then, connect the "HIGH" control wire to this now vacant OUT 5 24V GND terminal.


1. Locate the 24V 12 and 0V 12 terminal pairs on the back of the machine.
2. First, disconnect the original plug(s) from these terminals.
3. Then, connect the PUMP wire to the air pump terminal.


1. Find the Control Cable1(DB9 Female) with the plug shown in the diagram below.
2. Connect the socket end of this cable (opposite the diagrammed plug) to the 5-wire port on the relay.


3. Reattach the side cover, ensuring the cable passes through a suitable opening/grommet.
4. Plug the DB9 Female into the port labeled Ctrl on the device to complete the circuit connection.




|
Number |
Name |
|
A |
Control Cable 1 (DB9 Female) |
|
B |
Control Extension Cable 2: Hydra-Series Only (5-Wire Port) |
|
C |
Air Filter Regulator |
|
D |
Cable Ties / Cable Tie Mounts / Adhesive Hook / 6mm to 6mm Adapter |
|
E |
Relays |
|
F |
Air Hose (2.8m) |
|
G |
Air Assist Kit |
A dry, clean gas source must be used, with an operating pressure range between 0-0.7 MPa. Strictly control the water and oil content in the compressed air. Failure to do so may clog the nozzle, contaminate optical lenses, and in severe cases, may cause a fire.
Using the Built-in Air Pump:

Note: The original air pump delivers lower output pressure, making it suitable for limited scenarios (e.g., thin sheet cutting). For processing a wider range of materials, using an external air compressor system is recommended for significantly improved processing results. Optimized gas source solutions and test data will be continuously updated on the official website. Stay tuned for updates.
Connecting an External Air Compressor:
Power off the device and disconnect the Power Input located on the lower back of the device before starting any connections.

Important Note for External Air Compressor Setup:
When using an external air compressor, complete the following steps:





1. LOW → Connect to the OUT 4 24V GND terminal on the top row of the TL Mainboard (the 4th terminal from the left).
2. HIGH → Connect to the OUT 5 24V GND terminal on the top row of the TL Mainboard (the 5th terminal from the left).

3. 0V → Connect to any 5V GND terminal on the left side of the TL Mainboard (choose 1 of the 3 available terminals).

4. L5-1 → Connect to the lower row, 3rd terminal from the left of the device's Relay L5.
5. L5-2 → Connect to the upper row, 3rd terminal from the left of the device's Relay L5.

1. Locate the wire labeled RD-shot. Plug it into the 4th small terminal of the 2nd large terminal block located the bottom-left section of the TL Mainboard.

2. Locate Control Cable 1 (DB9 Female) and Control Cable 2 (5-Wire Port) inside the air assist control box. First, mate the two cables together to extend the overall length – we will refer to this combined cable as the "Assembled Cable". Then, connect the 5-Wire Port end of the Assembled Cable to the 5-Wire Port on the relay, as shown in the figure below.

3. Open the access door/panel on the back of the device. Route the connector end of the Assembled Cable through the internal space at the back of the device. Pull it out through the cable pass-through hole in the rear cover.



IMPORTANT SAFETY WARNING:
Due to limited space in the rear cover's cable pass-through holes, improperly routed cables may intrude into the laser optical path. This poses serious risks including: laser beam reflection hazards, burned/cut wires and potential equipment damage.
REQUIRED ACTIONS:
ALL cables MUST be securely fastened using cable ties and cable tie mounts. Cable positions MUST be periodically inspected to prevent the above hazards!


4. Open the small access door/panel on the left side of the device. Pull the connector through this opening towards the Air Assist Kit. Plug the connector into the port labeled "Ctrl" to complete the circuit connection.



This air assist system features start-stop interlock control with the laser equipment:
The air assist system automatically activates / deactivates when the laser equipment is started / shut down. If the laser equipment has no active processing task, the air assist system stops air supply.

The digital pressure gauge within this Air Assist Kit has undergone precision calibration prior to shipment. Users must not disassemble or recalibrate the gauge.
The gauge provides real-time, continuous display of the pressure value detected by the sensor. When system pressure is stable with minimal fluctuation, the gauge reading will remain clear and steady.
Important:
If you observe that the digital pressure gauge only displays up to 0.5 MPa when using a 0.6 MPa air supply, this is a normal occurrence. Pressure reduction occurs as the air enters the system, and this level of drop falls within the expected range.
During normal operation, the gauge continuously displays the real-time air pressure value. Upon detecting a system abnormality, the screen will display one of the following error codes:
|
Error Display |
Error Description |
|
![]() |
Abnormal current consumption on switch output |
|
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Pressure applied during zero-point calibration |
|
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Pressure value exceeds measurement range |
|
![]() |
Internal Error |
|
![]() |
Internal Error |
If an error code appears:
DO NOT force continued operation. This may damage the laser equipment and Air Assist Kit. Please contact after-sales support personnel for resolution.
The Air Assist Control supports controlling the auxiliary air pressure in two modes: High Pressure and Low Pressure. The air pressure settings for each mode are independent. You can control the Air Assist Control's operating mode via the following methods:
After correct installation, the device will automatically set the Air Assist Control's pressure mode based on the air assist switch settings defined in the design layers:



Typically, higher air pressure is used for cutting operations, while lower pressure yields better results for engraving operations. You can adjust the air pressure to meet specific requirements via manual knob adjustment or by changing the air assist mode in your design.
Critical Protection Mechanism:
If the following issues occur during use, contact After-Sales Service:
|
Symptom |
Possible Cause |
|
Pressure reads 0 / No airflow |
Main gas supply valve closed / Air hose kinked or detached / Filter blocked |
|
Abnormal pressure fluctuation |
Insufficient source pressure / Air filter regulator malfunction |
|
Abnormal noise |
Accumulated dust in cooling fan / Overload from continuous operation |
|
Digital gauge black screen |
Power disconnected / Loose display ribbon cable |