Beijing Dawei Laser Technology Co., Ltd.
Beijing Dawei Laser Technology Co., Ltd.


Compact Size 30 Watt Co2 Laser Tube Humidity Non Condensation 1.8 ± 0.2mm Beam Diameter

Product Details:

Place of Origin:China
Brand Name:DAVI
Certification:CE, ISO9001,FDA,ROHS
Model Number:D30

Payment & Shipping Terms:

Minimum Order Quantity:1 Unit
Packaging Details:61*29*25cm
Delivery Time:7 WORK DAYS
Payment Terms:T/T, Western Union, MoneyGram, D/P, L/C
Supply Ability:500 Units per Month
WEIGHT:6.6kg(14.5lbs)DIMENSION L X W X H:357×92.5×142mm (14.1×3.64×5.59in.)

co2 laser tube refill

co2 laser tube kit

Model D30 ,Sealed CO2 Laser Tube , Ceramic Laser Cavity ,

Compact Product Size , 30W Output Power , 10.6um Wavelength



We work alongside them using our in-depth knowledge and providing them with cutting-edge solutions – often customised – which are always able to ensure excellent performance in terms of costs, operating efficiency and quality of the end product. 


DAVI Lasers is a reliable company for expert advice and good service in the field of co2 laser beam source. Superior beam quality,favourable price, long product lifetime ,efficient technical support are the main strengths of our products and service.

CO2 laser are suitable for the engraving and cutting of many types of materials, ranging from metal to plastics, and from leather to glass.

Laser Tube D30 is also widely using in Medical Devices like fractional Laser beauty machines .  

Compact Size 30 Watt Co2 Laser Tube Humidity Non Condensation 1.8 ± 0.2mm Beam Diameter 0

Model D30 Laser Specification and working condition


System Performance


Continuous rated output Power30w
Power stability rate±5%
Mode of qualityM2﹤1.2
Beam Diameter1.8±0.2mm
Beam divergence angle7.5±0.5m full angle
Degree of polarizationLinear polarization(﹥100:1)parallel to width direction
Working frequency &duty cycle0~25KHZ,0~100%DC
Dimension L x W x H



Input voltage48VDC±2% range,Average current max 12A,required power supply could bear peak current 18A no less than 1mS.
Max Heat Load﹤575w
Maximum hull temperature﹤60℃(140℉)
Working environment temperature5℃~40℃(41℉~104℉)
Working height﹤2000m(6,500ft.)
Storage environment-10℃~60℃(14℉~140℉),Non-condensation

1.Laser power is tested according to the temperature of laser which is 25℃,everytime the laser temperature rises 1℃,the output power will reduce 1%.

2.Definition of stabilization: ±(Pmax-Pmin)/(2Pmax)

3.Testing condition of stabilization: Warming up about 10mins,controlling duty cycle constantly,under the normal operating environment.


D30 dimension drawing

Compact Size 30 Watt Co2 Laser Tube Humidity Non Condensation 1.8 ± 0.2mm Beam Diameter 1

    Some common Questions and Answers during Laser use


Question 1: The laser may fail to start properly after being laid aside for a period of time. Why does this problem arise, how to solve it when it happens?

Answer: If the laser tube was laid aside for a long time, when use it again,the laser module may not be able to start preionization properly.Under this situation,the electronic circuit of the laser module may test a high degree back reflection voltage, which will cause SWR fault (Laser OK Fault) so the laser can’t start work normally. When you start to use the laser tube after putting aside for a long time , it is advised to set the duty cycle of Modulation Signal less than 10% frequency less than 25KHz,this operation can avoid trigger SWR Fault. When a SWR fault already ocurred,you can add the Modulation Signal to the laser tube, the electronic circuit will send a Secondary ionization pulse which can help the laser tube heating up.


Question 2:When the laser module start to work ,it needs a certain of time for preionization reason. If we send modulation signal to the laser,could it speed up the preionization ?

Answer : No, it couldn’t . The preionization function was accomplished by the preionization electronic circuit .Once the power was connected to the laser, the preionization start to work. Adding more modulation signal to the laser can’t make the laser tube finish preionization status earlier.


Question 3: Do the fans and heat sink of the air cooling lasers need to be cleaned up regularly ?

Answer: Yes, they do . Because the dust in the air may adhere to the fans and heat sink after the fans run for a period of time, which will greatly decrease the ventilation effect of the heat sink,more serious and irreparable damage may occur if the heat can’t be ventilated properly.


Question 4: What will happen when the laser module is in overheating protection? How to handle it when it happens?

Answer: If the laser module triggers heat protection,it will stop working.When it happens,the user should do these work : 1. turn off the laser power. 2. For water cooling type laser tubes, Inspect if the water cooling machine is normally working or not. 3.For the air cooling type laser tubes, inspect if the fans are normally working or not. 4. Inspect if the fans and heat sink of the air cooling laser should make a cleaning. 5. Check if there is enough ventilation space around the air cooling laser. 6. When the above problems happen, you should wait and don’t turn on the laser tube until the laser tube temperature drops to normal level.

Beijing Dawei Laser Technology Co., Ltd.
ADDRESS:No.1 ChaoQian Road,Science & Technoloy Park, ChangPing District, Beijing 102200 , China