This article describes adding 3rd party bolt-on performance peripherials. Your stock Thunder Laser will run to our specifications right out of the box with the included high quality accessories.
The maximum recommended operating system pressure, according to Thunder China Engineering, is now 55 psi to help prevent premature air solenoid failures. This supersedes any other documented system pressure recommendations.
It is important to initially set up your machine with only the factory supplied peripherials and ensure proper operation. then you can evaluate what (if anything) you may want to do to your machine to enhance its performance.
Complicating the initial setup also increases the operational difficulty, and creates rabbit holes when troubleshooting, should that become necessary.
Many have found a significant improvement in cutting when supplying the air assist system with higher pressure air from an external air source, usually a standard air compressor.
NEVER POWER AN EXTERNAL COMPRESSOR FROM THE LASER POWER.
IT MUST HAVE ITS OWN DEDICATED POWER SOURCE.
This one image literally tells you everything you need to know to connect external air.
Links to parts and more info can be found below:
1. The maximum recommended operating system pressure, according to Thunder China Engineering, is now 55 psi to help prevent premature air solenoid failures. This supersedes any other documented system pressure recommendations.
2. There needs to be a regulator and good water separator immediately before the main air inlet on the laser. The quick-release fittings and tubing are 6mm but 1/4" works just fine.
This is the one we use sometimes but they may vary. Here's the link: https://www.amazon.com/gp/product/B07Z5P82WC/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
Don't fuss with desiccant dryers, they are quickly overwhelmed. It would be better to just get a 2 stage separator.
The kit linked below is also very handy. It's often all you need. Most common shop pneumatic fittings are 1/4 NPT so this should work with your compressor fittings and accessories
Check out this kit:
https://www.amazon.com/gp/product/B07RJ1BYKV/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1
NOTE: ONLY 2 of the 1/4"NPT to 1/4" quick release fittings come in that kit. You actually need one more.
We have not found them for sale individually but they are here: https://www.amazon.com/Connect-Fitting-Fittings-Straight-Connectors/dp/B07H8KDTRS/
Here is the connector for the compressor side:
https://www.amazon.com/gp/product/B085L9VHYD/
3. The system pressure needs to be relieved after you are done with your laser for the day. Leaving the system pressurized will exert pressure on the valves in the solenoids and cause the seat to be indented and weaken prematurely.
I simply turn off the air supply at the inlet and press one of the air assist test buttons to bleed it off before I power down my machine.
There are some differences in the air assist systems themselves the we need to identify early on so you can plan for them.
If you have dual-stage air assist it works like this:
There is a single 6mm quick-release airline fitting at the rear of the machine. This is the main air inlet. That splits into 2 air solenoids. One for High Stage and one for Low Stage. Then there are 2 lines from there to the needle valves in the left control panel under the green test buttons. after the needle valves they combine into 1 airline again and it goes to the nozzle.
To add external air to the dual-stage just plug your compressor in on a different branch than the laser and chiller, plumb it into the laser with the valve, regulator, and water separator(s), and hook up the airline.
To add an external air supply to most single-stage air assist systems you will need a solenoid to control it. You can get a 110VAC solenoid and plug it into the air compressor outlet on the back of the laser or you can get a 24VDC one and go to the trigger of the contactor for the air pump outlet. The first way is the best way.
As far as buying compressors goes, many choose the California Air Ultra Quiet 8000 series compressors. There are other ultra-quiets out there. I would make the minimum specs 1HP and 6gal. The duty cycle even at minimum specs will be fairly high so the bigger the better.