Comparison of flange marking methods: Features and applications of Laser Marking, Dot Peen Marking, and Roll Marking. As a key connector in the pipeline system, the quality of flange marking directly affects the traceability, installation identification, and maintenance management of the product. The current mainstream flange marking technologies include Laser Marking, Dot Peen Marking, and Roll Marking, each with its own characteristics and applicable scenarios.
Laser Marking
Laser Marking forms a permanent mark on the flange surface through a high-energy laser beam, non-contact processing, high precision, and no mechanical damage to the material.
Features:
High precision, can mark QR codes, barcodes, and complex patterns
Non-contact processing, suitable for products with high surface finish requirements
Flexible and fast, can be integrated into automated production lines
Wear-resistant and corrosion-resistant
Application: Widely used in products such as stainless steel flanges and alloy steel flanges, suitable for scenarios with high requirements for marking quality and information volume, such as food, pharmaceuticals, energy, aerospace and other industries
Dot Peen Marking
Dot Peen Marking uses a high-speed vibrating needle to form a mark through dot matrix impact, with excellent durability and flexibility.
Features:
Marking depth is adjustable and the mark is durable
High adaptability, can be used for certain curved or uneven surfaces
Suitable for a variety of metal materials, including stainless steel flanges and alloy steel flanges
Moderate cost, suitable for medium-volume, variable content marking needs
Application: Widely applicable to a variety of stainless steel flanges and other metal flanges, commonly used in energy, petrochemical, shipbuilding, machinery manufacturing and other industries, suitable for marking product models, batches, pressure levels and other key information.
Roll Marking
Roll Marking forms continuous characters on the flange surface through a roller with raised characters, suitable for rapid marking in mass production.
Features:
The marking is deep, clear, high contrast and easy to identify
Easy to operate, suitable for batch production of fixed content
Applicable to a variety of metal flanges, including stainless steel flanges
Excellent durability, the marking effect can be maintained for a long time
Application: Commonly used in the batch production of metal flanges such as stainless steel flanges, suitable for marking standard information such as nominal diameter (DN), pressure level (PN), material grade, etc., to meet the identification needs in efficient production scenarios.
How to choose the marking method?
The following factors should be considered comprehensively when choosing the marking technology:
Flange material (stainless steel, alloy steel, etc.)
Complexity of marking content
Aesthetics and identification requirements
Batch size and production rhythm
Cost budget and delivery cycle
The following is a brief comparison of the key characteristics of the three technologies:
Conclusion
Laser Marking is suitable for scenarios with high requirements for marking accuracy, aesthetics and information volume;
Dot Peen Marking has good durability and adaptability and is widely used in the industrial field;
Roll Marking still has advantages in fixed content and batch production scenarios with its high efficiency and economy.
Reasonable selection of marking technology can help improve the identification efficiency, traceability management capabilities and overall quality image of flange products.
Enterprises can flexibly select appropriate solutions based on specific product characteristics, project requirements and production conditions to achieve the best marking effect and cost-effectiveness.
