Chinese CO2 Laser Power Supply for 50 watt

Brand Name	Mahoney
Packaged Weight	4 pounds
Product Dimensions	6.3 x 3.5 x 3.5 inches
Item Model Number	MAH-CHPS-50CR
Shipping Costs	USPS rates, Internationally $22. DHL, FEDEX typical.
Payment Methods	Payment using Paypal Electronic Invoicing system for credit cards including VISA, MASTERCARD, AMEX, DISCOVER and Paypal.  No Paypal account required for transaction.

 

Compatibility

• This product is great for owners of laser engraving machines, laser engraving systems, laser cutting machines, laser cutting systems.

• Laser power supply fits CO2 laser tubes rated for 40-50 watts usage.

• This laser power supply works for high voltage CO2 glass tube lasers including RECI, EFR, Jilin Yong Li, Mactron Technology, North Star Electron, Shanghai Jinke Intelligent Technology, YL Lasers.

• It works with laser machines made by Rabbit Laser, GW Weike, Yueming, Hans Laser, Beijing New Power, Chutian, Foshan Beyond, Grand Bird, Jinan XYZ, Perfect laser, Suke, Thunder Laser, Shenui, and many many more.

 

SPECIFICATIONS

Input	Input Voltage	AC110V
AC frequency	47—440HZ
Cold Surge Current	≤60A(AC220V Input)	≤30A(AC110 Input)
Current Leakage	≤0.7mA（AC220V Input）	≤0.4mA(AC110V Input)
Output	Maximum Input Voltage	DC 30KV	DC 5V	DC 24
Maximum Output Current	DC 25mA	1A	1A
Efficiency	≥90﹪（full load）
Mean Time Between Failure (MTBF)	≥20000H
Response Speed	≤1ms（from the switch Signal is given to the output current up to 90% of the setting current）
Control Interface	TTL level switch control (details refer to the control terminal specification)
Pressure-proof	Input-Output, Input-Shell: AC1500V 10MA 60S
Protection	can work in open-circuit condition for a short time （Require a good protective earthing and avoid arc between the positive and the machine shell）
Environmental	Operating Temperature：-30~65℃），Relative Humidity (RH) ：≤90﹪
Cooling Way	Natural air cooling

 

 

Is my laser power supply really broken, or is my tube bad?  Watch this instructional video to determine if the Chinese CO2 laser power supply is truly bad.  Includes several individual indicators that the supply no longer works, or works properly.  A bad laser tube is shown here, not a bad power supply--see this video.

 

Click for Instructable:  How to test and set a Chinese (China) made CO2 Laser Power Supply to get long life from your CO2 Laser Tube for your Laser Engraving and Laser Cutting Machine System.  Includes an online instruction set, or a downloadable pdf for Instructable members.

 

Click for Instructable:  How to convert 220V to 110V on a Chinese CO2 Laser Power Supply Includes an online instruction set, or a downloadable pdf for Instructable members.

 

What do these power supply specifications mean to me?

 

Protection: with well-grounded enclosure, output circuit of power supply can be open for short time (but arc between positive pole and enclosure should be avoided).  This spec. translates into the following actionable items:  1. When installing the laser power supply, ground the power supply to the enclosure's metal (sandpaper if necessary) to make sure the ground wire from the power supply goes to the laser enclosure, and further, that the laser enclosure is earth ground.  2. Immediately power off if arcing is heard and/or seen (the red wire to the laser can degrade over time, or be installed improperly, so connect properly).  See enclosure arcing here on youtube.  See one method for proper wire connections here on youtube.  This means that you need to listen for arcing because the high voltage wires degrade with use (my 150 watt RECI wire began internaly arcing (inside the insulation) near the tube after about 25 hours of use, so I cut it back and have not had a problem since that time. 

 

35KV maximum voltage. This is the absolute maximum power of the power supply according to this spec--though I never saw it when measuring the high voltage.  Now, the way the power supply works, is that it has a "strike" voltage to start the lasing then quickly drops to a steady voltage to maintain the lasing.  If this value is too low for your laser then the laser will not start to lase.

Conversely, a higher rated power supply will do the job-see example here on youtube. However, if you are going to use a higher power supply, then drop the current down as much as possible while measuring the laser output power. In other words, do not run the laser tube with a higher output power than its rating--make a 60 watt run at 60 watts, not 70 watts or else it will die early.

 

 Input voltage: AC 220V+30 or AC 110V+20 (to be specified when placing order).  This means that you should put in the correct input AC voltage.  If 220V AC is wrong then you can convert to 110V AC using this instructable.  Or, if you find that your laser is putting out only half its rated power then you know it is wired for 220V AC as this person discovered.