What is a Flap Disc? The Role of Flap Discs in Mechanical Processing

03/10/2025
Lekar

A flap disc is one of the most useful materials in mechanical processing thanks to its ability to speed up operations, deliver high efficiency, and significantly reduce production costs. 

This type of surface finishing material has now become an essential tool in every workshop. Flap discs are used together with angle grinders to finish surfaces of various materials, from metals such as stainless steel, steel, and iron to other materials like wood and concrete.

Flap Disc

Flap Disc

1.  Structure 

Flap discs are made from abrasive sandpaper containing grinding particles, available in various sizes, grit sharpness levels, and flap densities.

Designed in a circular shape, the abrasive sheets are cut into individual flaps and then layered together to form the disc.

Flap discs are commonly used for metal surface finishing, including tasks such as deburring, coarse polishing, and fine polishing. They can be operated manually with an angle grinder or integrated into automated grinding machines.

2. The Role in mechanical processing

In mechanical processing, flap discs are becoming increasingly popular due to their important role in surface treatment and finishing operations. They help remove burrs, smooth rough edges, clean weld seams, and polish metal surfaces, thereby improving product quality, enhancing efficiency, and reducing production costs.

 Mechanical Processing Activities

Mechanical Processing Activities

  • Enhancing Work Efficienc:

As an abrasive material that facilitates effective surface treatment, flap discs provide a high grinding rate, especially when used with specialized sanding machines. This significantly speeds up the production process and delivers greater economic efficiency.

  • Optimal Surface Finishing:

 Most flap discs are made with a cloth or paper backing coated with high-adhesion abrasive grains. This construction allows for superior surface finishing capability, outperforming conventional polishing materials.

  • Ensuring Product Aesthetic:

Trong hoạt động gia công cơ khí, ứng dụng đĩa nhám xếp vào công đoạn xử lý, hoàn thiện đối với bề mặt sản phẩm không chỉ góp phần nâng cao năng suất mà còn đảm bảo về tính thẩm mỹ đồng thời bảo vệ sản phẩm tốt hơn trước những tác nhân gây hại từ môi trường bên ngoài.

  • Cost Efficiency: 

Flap discs feature highly durable abrasive grains that can be reused multiple times, allowing businesses to significantly reduce material investment costs. With their superior performance, flap discs also speed up production processes, requiring less manual labor and ultimately saving both time and expenses.

3. Trusted supplier of high-quality flap discs

Flap discs are widely used, especially in the production of handicrafts and in polishing applications for materials such as stainless steel, iron, aluminum, copper, and more.

Flap discs are widely used, especially in the production of handicrafts and in polishing applications for materials such as stainless steel, iron, aluminum, copper, and more.

With over 10 years of experience, LEKAR GROUP specializes in providing premium flap discs, abrasive wheels, and sandpapers for metal surface treatment and finishing, both semi-automated and manual operations. Choosing LEKAR GROUP ensures not only superior product quality but also professional and dedicated services.

For inquiries or detailed information about flap discs and other abrasive products, please contact:

LEKA POLISHING TECHNOLOGY JOINT STOCK COMPANY – LEKAR GROUP

Head Office: No. 11, Louis VII Street, Louis City Urban Area, Dai Mo Ward, Hanoi.

Northern Branch: Lai Xa Industrial Cluster, Hoai Duc District, Hanoi. Tel: 02437 646469.

Southern Branch: Nam Tan Uyen Industrial Park, Tan Hiep Ward, Ho Chi Minh City. Tel: 02873 033386.

Website: danhbongkimloai.com.vn | lekar.vn

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