In the mineral processing of rare metals such as tungsten and tin, felt belts are the “key to profitability,” and their quality directly determines the level of metal recovery. Addressing long-standing industry challenges with traditional felt belts—such as slow water intake, poor water drainage, and prone-to-damage skirt edges—our R&D team tackled the issue at the source by focusing on materials and manufacturing processes. We have successfully launched the fourth-generation mineral processing felt belt. With the core breakthrough of “efficient water intake and rapid drainage,” we have achieved a significant 70% increase in mineral recovery rates. The product has been widely adopted in mining areas across Yunnan, Guangxi, and Jiangxi, earning unanimous praise from customers.

Mineral processing felt belts are typically used in conjunction with mineral processing felt machines. They are white in appearance, feature side flaps on both sides, and have guide strips on the back. However, ordinary felt belts on the market have long suffered from three major quality shortcomings: low mineral recovery rates, frequent detachment of side flaps, and felt bulging and delamination. These issues severely limit mineral processing efficiency and cause practical problems for processing plants, such as frequent downtime and high maintenance costs.

 

To address these issues, leveraging our proprietary technological expertise, we have upgraded and developed the fourth-generation mineral processing felt belt. We have conducted specialized optimizations across three key dimensions—water drainage efficiency, structural strength, and operational stability—to ensure the product is “easy to use, durable, and long-lasting.”

 

Advantages of Shandong Annai’s Fourth-Generation Mineral Processing Felt Belt

70% Increase in Mineral Recovery Rate

Utilizing imported high-precision needle-punching equipment, we precisely control the softness of the felt to create an ideal water-conducting channel—allowing water to enter easily and exit quickly. This resolves the pain points of traditional products, such as “slow water intake and slow drainage,” resulting in a 70% increase in mineral recovery rate compared to conventional products, ensuring that every gram of rare metal is fully recovered.

 

No Material Trapping or Cracking at the Edges

An innovative design featuring seamless edges and a gentle S-curve effectively prevents material trapping, leakage, and spillage. Additionally, the incorporation of German-engineered super-conductive vulcanization technology ensures molecular-level bonding between the edges and the belt body, maintaining structural integrity even after prolonged operation and eliminating cracking or peeling.

 

One-Piece Molding to Prevent Delamination

The felt and base belt are molded as a single unit through a one-piece vulcanization process, creating a seamless, integrated structure. This resolves common issues with traditional felt belts—such as felt bulging and belt delamination—significantly extending service life.

 

Anti-Drift Design for More Stable Operation

The straightness of the guide strips is strictly controlled, preventing them from coming off the track during operation. Combined with German-style super-conductive vulcanization technology, this ensures the guide strips remain firmly attached and do not detach, fundamentally resolving the persistent issue of belt drift and ensuring continuous, stable equipment operation.

 

 

 

Wide-Ranging Applications of Mineral Processing Felt Belts

Shandong Annai mineral processing felt belts are suitable for the beneficiation and purification processes of various rare metals, including tungsten, tin, gold, copper, lead, zinc, chromium, titanium, tantalum, and niobium, meeting the refined recovery requirements of different mineral types.