This section provides overview, applications, and principles of marking presses. Also, please take a look at the list of 6 marking presse manufacturers and their company rankings.
An engraving machine is a device used to apply letters and patterns to various materials and shapes. It is similar to a printer, but differs in that it does not apply ink, etc., but rather physically scrapes or chemically discolors the object.
Therefore, printed materials printed by an engraving machine are resistant to friction and other factors and do not easily fade away.
In the past, printing was done by applying pressure using a needle or a mold, but in recent years, laser marking press have been developed to print non-contact.
Marking presses are used to engrave production dates, serial numbers, and lot numbers for the purpose of quality assurance of parts and products and to strengthen management systems.
In recent years, non-contact engraving technology using lasers has emerged, and demand for this technology is increasing because it does not place a physical load on the product, can print on complex shapes with uneven surfaces, and can print in detail at high speeds.
In addition, the use of lasers has the advantage of not requiring special molds, etc., and can be flexibly adapted to changes in printing content.
There are two main types of marking presses: contact and non-contact.
The non-contact type uses a chemical reaction, such as oxidation, to create contrast when irradiated with a laser, and is also called a laser marker.
The contact type requires a type or a needle-like object to print.
The type marker that uses type is either a holder type or a numbering type, and the type to be printed is set in the holder, or the surface is indented by applying pressure after selecting the type on the dial.
Needle-operated types include dot marking machines and precision grinders.
Dot marking machines use a needle called a marking pin that is pressed against the surface to create a single dot. Multiple dots are then dotted to create an engraving.
Precision grinders use a needle whose tip rotates like a drill, and print by scraping the surface.
Since printing is basically done by hand, throughput is low and these machines are not widely used in the industrial field.
Laser marking presses use a laser beam to change the surface of the object being printed or engraved thermally, and are mainly used for engraving and marking on metals and resins.
The laser used for engraving is controlled by a computer. Small patterns can be engraved precisely and at high speed. The imprinting is done in a non-contact state with the object to be imprinted, so the product is not impacted by the imprinting.
Fiber lasers are known as the lasers used. Fiber lasers are a type of solid-state laser in which the light source from a fixed laser is amplified by a resonant medium and emitted as laser light.
Fiber lasers have a small beam spot and excellent beam quality, making it possible to reduce the size and weight of equipment, and they are widely used in industrial applications such as cutting, marking, and welding.
UV lasers are also known to be used. UV lasers have a wavelength of 355 nm, which is one-third the wavelength of fundamental wavelength lasers (1,064 nm). It has a very high absorption rate for each material, enabling printing and processing without causing thermal damage. This laser is ideal for applications that require printing with high colorability and minimal damage to products.
Press-type marking presses use the repulsive force of a spring to impact directly on the object to be printed, just like a press process. There are two types of marking presses known: manual and air-driven. Both are easy to operate and provide semi-permanent engraving.
Manual marking presses can freely set the imprinting load from zero and do not require fine height adjustment due to the thickness of the workpiece. They can also perform caulking, press-fitting, bending, and other operations, in addition to stamping applications.
On the other hand, air-driven emarking presses have the advantage of being able to engrave using only an air source. For this reason, portable, handheld marking presses are being developed by various manufacturers.
*Including some distributors, etc.
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