Setaccio vibrante in acciaio inossidabile per rivestimento in polvere epossidica: rimozione di particelle sovradimensionate e recupero di polvere fine

Panoramica del progetto

Epoxy powder coating screening is a key step after fine grinding and before packaging. The main purpose is to remove oversized particles, recover fine powder, and control the particle size distribution, usually within 20–80 μm.

For this project, the customer needed a reliable screening machine for the end of their powder coating production line:

Premixing → Melt Extrusion → Cooling → Crushing → Fine Grinding → Screening → Packaging

The customer chose a stainless steel vibro sifter for the screening and classification process.

Requisiti del cliente

During the discussion, the customer mainly focused on four points:

• Remove oversized particles after fine grinding.
• Separate and recover usable fine powder.
• Control the final particle size, mainly around 20–80 μm.
• Reduce screen clogging caused by fine powder and static electricity.

The customer also wanted a closed screening system to reduce powder dust escaping into the workshop.

Screening Solution

We recommended a multi-layer stainless steel vibro sifter for the powder coating line.

The screening process was arranged according to the customer’s particle size requirements:

• Upper screen: 60 mesh for oversized particles and impurities.
• Middle screen: 250 mesh for particle size classification.
• Lower section: Collect fine powder separately.

The machine can use 2 screening layers, depending on the final product requirements.

For very fine powder or materials that are easy to stick to the mesh, we recommended adding an ultrasonic screening system. The high-frequency vibration helps reduce powder adhesion and screen blockage, especially when using fine mesh such as 250 mesh or finer.

Parametri dell'attrezzatura

The final mesh configuration and machine size were selected according to the customer’s material characteristics and production capacity.

Key Features

Remove Oversized Particles

The vibro sifter removes coarse particles after fine grinding, helping maintain a more consistent powder coating particle size.

Recover Fine Powder

Different outlets separate fine powder from the main product, allowing usable fine powder to be collected for further processing or recovery.

Reduce Screen Clogging

Epoxy powder can easily carry static electricity and stick to the mesh. An ultrasonic system can help keep fine mesh open and improve screening stability.

Stainless Steel & Enclosed Design

304/316L stainless steel contact parts help reduce material contamination and make cleaning easier. The enclosed structure also helps control powder dust during operation.

Feedback del cliente

After discussing the material, particle size, and production process, the customer found that the multi-layer vibro sifter matched their screening requirements well.

The machine helped them remove oversized particles, separate fine powder, and improve particle size control before packaging.

For their finer powder products, the ultrasonic option also provided a practical way to reduce mesh clogging and maintain stable screening performance.

Need a Vibro Sifter for Epoxy Powder Coating?

If you need to remove oversized particles, recover fine powder, or improve particle size control in your epoxy powder coating production line, our team can help.

Send us your material, particle size, capacity, and required mesh size. We can recommend a suitable stainless steel vibro sifter and screen configuration for your process.