Boiler water walls are membrane walls that are made of tubes welded together with or without a strip of metal in between. These walls form the enclosure of the coal combustion chamber. Water wall tubes are also referred to as the evaporator section; they contain water mostly in liquid form which gradually evaporates as it rises in the boiler.
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FIBER Â LASER Â MARKING Â MACHINE 20W
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Technical Parameter:
Laser Wavelength
1064nm
Beam Quality
<1.5
Laser Repetition
≤100KHz
Standard Marking Area
110mm x 110mm
Making Depth
≤1.5mm(Can be Adjustable)
Marking Speed
≤12000mm/s
Min. Line Width
0.01mmÂ
Min. Character Size
0.05mm
Repetition Precision
±0.001mmÂ
Power Consumption
≤500W
Cooling method
Air cooled
Power Supply
220V/50Hz/10A
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Lens Type
HBS-65
HBS-110
HBS-175
Focal Length
100mm
170mm
250mm
Marking Area
65mm*65mm
110mm*110mm
175mm*175mm
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Packing DetailsÂ
Dimension(mm): Â 855X1000X1170 (Machine head: 530X220X660, table: 600X700X750)
Net Weight(kg): 70(Machine head: 13.5, table:56.5)
Gross Weight(kg): 140 Â Â Â Â 
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Product Introduction:
Fiber Laser Marking Machine is the latest generation of laser marking system, resulting from our own research using the world's most advanced laser technology.
Adoption of fiber laser system for outputting laser, and then achieve marking functions by high-speed scanning galvanometer mirror system.
The electro-optical conversion efficiency of fiber laser marking can reach to 90% or above, it has higher beam quality in comparison to semiconductor laser marking machine.
The machine is designed for long-time maintenance-free.
Product Features:
Extremely fast, with high-speed galvanometer.
Small volume, light weight.
No consumables, low power consumption, less than 500W.
Completely air cooled, do not need water chiller, lower power consumption.
Robust under harsh environment and temperature change, can operate with batteries or supply from automobile cigarette lighter in case of power failure.
Low product depreciation cost. Ability to meet customers' mass and stable production.
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Product Application:
The machine is assembled with fiber laser from Germany or Britain, or RAYCUS. The working time can reach 100,000 hours or above, competent in different work locations.
Fiber laser marking machines are used in a wide variety of applications such as in the marking of gold, silver diamond and other jewelries, sanitary tools, food packaging, tobacco packaging, beer and beverage packaging, pharmaceutical packaging, medical equipments, watches & glassware, automotive parts, plastic & paper material, electronic hardware, gold bullion, and also in other areas such as aviation, aircraft manufacturing, projectile body and explosion proof materials. 
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20W Fiber Laser Stainless Steel Marking Machine for Plastic/Metal/Aluminium
Model NO.: HBS-GQ-20A
Type: Optical Fiber Laser Marking Machine
Marking Method: Scanning Marking
Laser Source: Raycus
Using Method: Table Cabinet
Trademark: HBS
Transport Package: Dimension(mm): 855X1000X1170 (Machine Head: 530X2
Specification: Dimension(mm): 855X1000X1170 (Machine head: 530X2
Origin: Beijing
HS Code: 8456301090
20W Fiber Laser Stainless Steel Marking Machine for Plastic/Metal/Aluminium