Fiber laser printer
KF720L
KF730L-S / KF750L
Bag-in-Box fibre laser marking is an efficient, flexible and cost-effective solution designed for bag-in-box packaging lines, even in dusty and humid environments.
Vibrometer
Field mirror
Electric control box
Product Overview
Fibre lasers employ optical fibres as their medium, evolving from amplification technologies developed for long-distance communication into high-power systems. The fibre structure consists of a central light-transmitting core surrounded by concentric metal cladding. These lasers amplify light through the Yb-doped (Ytterbium) core acting as the active medium.
Optical fibers for amplification (preamplifiers, main amplifiers) have a three-layer structure: a core and two metal cladding layers. Excitation light enters the inner cladding and Yb-doped core, exciting the atoms in the core. The laser light, confined to the core, propagates forward and is amplified by these excited atoms, growing stronger as it travels. Unlike solid-state or gas lasers, the light only moves in one direction without reflection.
Product Advantages
Easily integrated into bag-feeding production lines
The Bag-in-Box Fiber Laser Coder is designed for bag-in-box packaging lines, enhancing process efficiency and flexibility. Using advanced non-contact laser technology, it produces clear, durable markings that remain readable throughout the product lifecycle – even in wet, greasy, dusty conditions or during heat sterilization.
The technology can precisely mark hard-to-reach areas like side gussets and edges, significantly enhancing packaging adaptability.
The machine also supports medium-to-high-speed production lines, capable of marking hard, dense materials like metal parts, electronics housings, wires/cables, cans, and plastic caps.
Laser marking effect
The marking material, the laser wavelength and the type of laser all affect the marking effect. Here are a few of the effects of fiber optic coding.
- Melting different plastic materials to achieve a concave and convex effect;
- The chemical reaction between the laser and the product results in a change in color;
- Marking on the surface of the product, e.g. cans and on metal;
- Ablation or removal of surface coating color to expose the underlying replacement color;
- Carbonization or controlled combustion of wood or cardboard materials, as well as cables and pipes.
Fiber laser coding case
Fiber laser marking machine is equipment that uses a high-energy laser beam generated by a fiber laser to create permanent marks on various material surfaces. The marking process works by engraving patterns, text, or 2D codes through laser-induced evaporation, chemical changes, or surface layer ablation.
Fiber laser marking machine can be applied to metal and non-metal materials, including aluminium, stainless steel, copper, iron, steel, alloy, ceramics, glass, plastics, rubber, wood, paper and so on. Its marking effect is clear, beautiful, durable and anti-counterfeiting, and it is suitable for a variety of industries, such as electronics, machinery, automotive, communications, food, packaging, etc.
List of items
Each fiber laser printer comes standard with the core and accessories including the following items:
Lasers, electric control boxes, encoders, photoelectric sensors, touch all-in-one machines, lifting brackets, some wires and manuals, etc. In addition, customized accessories can also be equipped according to customer needs.
Technical Specifications
| Parameter | KF720L | KF730L-S | KF750L |
|---|---|---|---|
| Laser details | |||
| Laser type | Ytterbium-doped fiber lasers | ||
| Maximum output power | 20W | 30W | 50W |
| Laser wavelength | 1064nm | ||
| Laser class | Class 4 laser products comply with IEC60825-1 standard | ||
| Performance | |||
| Maximum linear speed | 9m/s | ||
| Marking speed | Up to 30 characters/sec | ||
| Coding angle | Downward (90°) or flat (0°) | ||
| Mark the area | Code the elliptical area[mm]：70 x 70、110 x 110、145 x 145、175 x 175 | ||
| Marking heads and lenses | |||
| Vibrometer | 8mm、10mm | ||
| Spot size | 5.7~8mm | ||
| Mark the distance | 110~275mm（Customizable） | ||
| Interface | |||
| Operator interface | Built-in 10 inch touch screen of win10 system | ||
| Communication interfaces | One Ethernet RJ45 port, one serial RS232, RS485, USB, SD card | ||
| Operating environment | |||
| Rated voltage | 200 – 240V 50/60Hz | ||
| The power of the whole machine | ≤500W | ||
| Ingress protection | IP65 | ||
| Operating temperature | 0~40℃ | ||
| Humidity range | 70% max. (relative humidity, non-condensing) | ||
| Cooling method | Air cooling | ||
| Product quality | 23Kg | ||
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[su_spoiler title=”What is Laser?” open=”no” style=”simple” icon=”plus” anchor=”” anchor_in_url=”no” class=””]
The term laser is an acronym for “light amplification by stimulated emission of radiation”.
Excellent monochromaticity (the beam consists of a purely single wavelength);
Excellent directivity (the beam consists of parallel light waves that do not diffuse when propagating);
High coherence (all the light waves of the beam are the same with each other).
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[su_spoiler title=”What is the difference between a normal light and a laser beam?” open=”no” style=”simple” icon=”plus” anchor=”” anchor_in_url=”no” class=””]
Lasers emit beams of light with high directionality, i.e., the light waves that are composed of light travel in a straight line and do not diffuse. The light waves emitted by ordinary light sources diffuse in all directions.
The light waves within the laser beam are all of the same color (this property is called monochromacy). Ordinary light, such as that emitted by fluorescent tubes, is generally a mixture of several colors of light that appears white.
When light waves within a laser beam propagate, they oscillate in perfectly synchronized peaks and troughs, a property known as coherence.
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[su_spoiler title=”Is laser visible light?” open=”no” style=”simple” icon=”plus” anchor=”” anchor_in_url=”no” class=””]
The laser itself is invisible. Due to the highly directional nature characteristic of lasers, we cannot see the path of the beam. Usually we can only see the diffuse reflection and reflection of the laser on any object. In an environment where there is mist or particles in the air, we can see the path of the beam because the light is diffusely reflected and reflected by the particles.
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[su_spoiler title=”Is the laser code permanent?” open=”no” style=”simple” icon=”plus” anchor=”” anchor_in_url=”no” class=””]
One of the main features of laser markers is that they can print semi-permanent printed images. Since the laser marker physically processes the surface of the target, the printed image cannot be removed as easily as the image printed with ink. This feature has led to the increasing popularity of laser markers in recent years in terms of security applications (anti-counterfeiting).
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[su_spoiler title=”Is it possible to look directly at the laser?” open=”no” style=”simple” icon=”plus” anchor=”” anchor_in_url=”no” class=””]
Never look directly at the laser, a laser that is specularly reflected, or a laser that is diffusely reflected. If the eye is directly exposed to lasers, it can lead to blindness. All laser products use 4 types of lasers, which cannot directly contact the body and skin.
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[su_spoiler title=”What maintenance does a laser marker need?” open=”no” style=”simple” icon=”plus” anchor=”” anchor_in_url=”no” class=””]
The maintenance-free laser marker is one of the main advantages of this product. If the lens surface becomes dirty, it should be cleaned, as a dirty lens can degrade the print quality or cause some parts of the printed image to be missing.
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[su_spoiler title=”What is the best way to clean the lens?” open=”no” style=”simple” icon=”plus” anchor=”” anchor_in_url=”no” class=””]
Swabing in a circular shape from the center of the lens outward is the most effective method. Never use a dry cloth to wipe the lens, as this may scratch the lens or wear off the protective coating.
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[su_spoiler title=”Is laser marking affected by device vibrations?” open=”no” style=”simple” icon=”plus” anchor=”” anchor_in_url=”no” class=””]
Laser markers use precise optical control. For this reason, if vibrations occur during marking:
The marking coordinates may be offset;
The text may be distorted;
Other problems may arise as well.
If environmental vibrations affect the laser marker, use an anti-vibration bracket or take other precautions to eliminate the vibrations.
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[su_spoiler title=”Do you need to replace your air filter when it gets dirty?” open=”no” style=”simple” icon=”plus” anchor=”” anchor_in_url=”no” class=””]
Yes. When an air filter becomes dirty, it needs to be cleaned or replaced. If the condition of the filter is ignored, the cooling performance will be reduced, which may reduce the laser output or cause damage.
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[su_spoiler title=”Can I engrave on a moving target?” open=”no” style=”simple” icon=”plus” anchor=”” anchor_in_url=”no” class=””]
Yes, the laser marker is able to adjust the position of the laser to follow the product and thus mark on a moving target. This function can be automatically set for both constant and variable speed lines.
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[su_spoiler title=”Does engraving on glass cause cracking?” open=”no” style=”simple” icon=”plus” anchor=”” anchor_in_url=”no” class=””]
The results depend on the type of glass used. Since glass is transparent, it is usually marked using the heat generated by a CO2 laser. For heat-resistant materials such as quartz glass, clear, crack-free engravings are produced. In contrast, applying heat to soda-lime glass can cause fine wrinkles, so repeated scans must be performed with a low power setting.
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[su_spoiler title=”How much does it cost to run?” open=”no” style=”simple” icon=”plus” anchor=”” anchor_in_url=”no” class=””]
Zero cost, in principle, there is no cost other than the daily cost of electricity. The use of photolithography makes the laser marking machine have the two characteristics of “no consumables” and “long service life”. Laser markers significantly reduce many of the steps of material management and eliminate the cost of ink and labels.
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|---|---|---|
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