Industrial marking guns are used wherever components need to be clearly marked during the production process. The focus here is not the coating itself, but rather on precise and reproducible marking for identification, quality control, or process control.
Modern marking systems enable automated marking even at high cycle rates and under demanding production conditions.
A marking gun is an application system designed to precisely apply marking such as dots, lines, or defined marking patterns to workpieces.
The focus is on:
→ the goal is to ensure reliable and reproducible labeling.
Paint spray gun | Marking gun |
Uniform surface coating | Dot and line markings |
High surface quality | High marking accuracy |
Focus on finish and appearance | Focus on identification and process control |
Large quantities of material | Controlled application of material |
Manual or automatic applications | Primarily automated application |
Marking guns are used in many industrial sectors and are an integral part of modern production processes, particularly in the steel, aluminium, automotive, timber, paper and electrical industries.
Different marking methods are used depending on the application. The choice depends on the material, the process requirements and the desired visibility of the marking.
Marking to ensure and document inspection processes.
Markings to support automated processes and subsequent processing steps.
Labeling to distinguish between materials, variants or batches.
Markings for the quick visual identification of materials
In addition to simple marking, functional media can als be applied in targeted manner.
Marking guns are usually pneumatic. The material feed is controlled by a needle, whilst the atomising air determines the shape of the mark.
This makes it possible to create:
Control is provided via:
→ this makes it possible to fully automate marking processes.
The sealing of the material system is a crucial factor in determining the service life, maintenance requirements and process reliability of a marking gun.
With the needle packing, the material needle passes trough a seal which prevents the medium from entering the control area of the gun.
Advantages | Typical restrictions |
a tried-and-tested standard principle | Wear caused by mechanical movement |
suitable for simple, low-viscosity fluids | Risk of deposits forming on the needle |
cost-effective | limited suitability for aggressive or fast-drying media |
In membrane technology, the material is completely separated from the mechanical control area. The movement is driven by an elastic diaphragm, without the medium coming into direct contact with the needle mechanism.
Advantages | Suitable for |
no direct contact between the medium and the mechanism | abrasive media (e.g. pigmented paints) |
significantly less wear and tear | moisture-curing materials |
high process reliability | quick-drying materials |
low-maintenance operation | demanding continuous-operation applications |
→ Crusting and defects may occur, prticularly with pigmented or moisture-curing materials.
→ Diaphragm systems are specifically designed for critical and demanding media.
The choice depends heavily on the material and process used:
Needle packing
→ simple media, standard applications
Diaphragm
→ challenging media, high demands, continuous operation
→ Choosing the right seal is a key factor in determining system availability and maintenance requirements.
It is not just the gun that is crucial for consistent results, but the entire system.
Typical components:
Extensions:
→ The interaction between these components determines reproducibility and process stability.
Modern marking guns often have a modular design. This allows for adaption to different production conditions without having to completely replace the system.
Advantages:
→ Modularity is a key factor in ensuring efficiency and future-proofing, particularly in automated systems.
The choice depends on several factors:
→ Systems differ primarily in their suitability for:
The choice depends primarily on the medium used, the process conditions and the desired marking. It is particularly important to strike the right balance between viscosity, drying behaviour and the requirements for precision and process speed.
A diaphragm solution is particularly useful when working with abrasive, moisture-curing or fast-drying media. It reduces wear and tear and ensures greater process reliability during continuous operation.
The supply of materials has a decisive impact on the reproducibility of the marking. Pressure stability, clean conveying conditions, and a well-coordinated overall system are essential for consistent results.
Yes, modern marking systems are modular in design and can usually be integrated into existing production lines without any problems. Control is usually carried out via a PLC or exisiting automation systems.
Marking guns are a key component of modern production processes. They enable precise and automated labeling while ensuring a high level of process reliability.
→ What is particularly crucial is:
Die Automatikspritzpistole Pilot WA51 mit Rundstrahldüse in der Vorderansicht.
WA 51
Miniature precision atomizer
Are you unsure which system is right for your application?
Our experts will help you make the right choice - tailored to your specific materials, processes and requirements.
