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20W Power Ceramic Laser Tube Metal Sealed Material 60cm*28cm*23cm Dimension

20W Power Ceramic Laser Tube Metal Sealed Material 60cm*28cm*23cm Dimension

20W Power Ceramic Laser Tube Metal Sealed Material 60cm*28cm*23cm Dimension

Product Details:

Place of Origin: China
Brand Name: DAVI
Certification: CE, ISO 9001
Model Number: D20/D20I

Payment & Shipping Terms:

Minimum Order Quantity: 1 unit
Price: Negotiation
Packaging Details: 60cm*28cm*23cm
Payment Terms: T/T, L/C, Western Union, MoneyGram
Supply Ability: 500 units per month
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Detailed Product Description
Material: Metal Sealed, Ceramic Cavity Wavelength: 10.6um/ 9.3um
Dimension: 60cm*28cm*23cm Max Heat Load: ﹤430w
Working Frequency And Duty Cycle: 0~25KHZ,0~100%DC Pulse Rise And Fall Time: Less Than 70us

        Ceramic Laser Tube 20W D20/D20I , favourable price ,

suitable for marking on many materials


General knowledge about laser technology

The concept of a laser was first invented by Charles Townes and Arthur Schawlow in 1958 while working at Bell Labs, but first laser was not built until 1960 by Theodore Maiman. Since that time many improvements and innovations have occurred, and today there are thousands of lasers being used in medical, industrial, telecommunication and defense applications. A laser differs from other light sources (flame, flashlight, lightbulb or LED) in that the light it produces is very directional or coherent. This allows the light to project in a beam or narrow cylinder instead of randomly illuminating in all directions simultaneously. Lasers also emit light over small ranges or at single wavelengths. The wavelengths can be attributed to colors of the light and are usually based on the laser type.

CO2 lasers can emit at 10.55um- 10.63um and 9.3um which is very deep in the infrared.



Leading supplier of Metal RF co2 laser tubes in China

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.


20W Power Ceramic Laser Tube Metal Sealed Material 60cm*28cm*23cm Dimension



For effortless lasering of wood, acrylics, steel and paper!

Laser Tube D20 is suitable for marking and engraving of many types of materials, ranging from paper to plastics, and from leather to glass.


20W Power Ceramic Laser Tube Metal Sealed Material 60cm*28cm*23cm Dimension


      Model D20/ D20I Laser Specification and working condition


System Performance


Model D20
Wavelength 10.6μm
Continuous rated output Power 20w
Power stability rate ±5%
Mode of quality M2﹤1.2
Beam Diameter 1.8±0.2mm
Beam divergence angle 7.5±0.5m full angle
Degree of polarization Linear polarization(﹥100:1) parallel to width direction
Working frequency &duty cycle 0~25KHZ,0~100%DC
Specification Weight 6.6kg(14.5lbs)
Dimension L x W x H



Input voltage 36VDC±2%,max average current is 9A,peak current that power supply could hold up is 14A,it can’t be more than 1mS.
Max Heat Load ﹤430w
Maximum hull temperature ﹤60℃(140℉)
Working environment temperature 5℃~40℃(41℉~104℉)
Working height ﹤2000m(6,500ft.)
Humidity Non condensation
Storage environment -10℃~60℃(14℉~140℉),No 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.



D20/ D20I Signal Interface Description and Connector Pinout



( PWM+ orange white)

RF Enable

TTL logic input ;1=RF ON,0=RF OFF;1KΩ impedance;

This input turns on the laser. See Pin7,Control Enable

2(+15V orange) +15VDC±0.5VDC,Max output for customer using is 0.25A


(Laser green white)

Laser status output

TTL logic output,1=LASER OK,0=LASER Fault;

When fault is not detected ,output valid



(Temp Blue)

Temperature status output

TTL logical output,1=normal temperature,0= Ultra high temperature;

When the case temperature is below 60℃, the output is valid.


(Volt blue white )

Power and voltage status output

TTL logical output;1=normal voltage;

0= abnormal voltage;

6(GND Green) For internal use. must ground connected


(Enable brown white)

Control enable

TTL Logical input;1= Laser control enable,0=Laser controlled shutdown

This input must be valid before RF is enabled to turn on the laser.

8(GND Brown) GND


1.The connector uses the RJ-45 type.

2.The color noted on pin can correspond to the cable color our company sent together with the product.



    D20/ 20I dimension drawing

20W Power Ceramic Laser Tube Metal Sealed Material 60cm*28cm*23cm Dimension


Contact Details
Beijing Dawei Laser Technology Co., Ltd.

Contact Person: tracy

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Beijing Dawei Laser Technology Co., Ltd.
No. 1 Zhenchao Road, Technology Park, Changping District, Beijing, China
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