Shaftless Tumbler Sieve

Shaftless tumbler sieve is a more widely used screening equipment, used mainly for pre-screening and classification screening. The tumbler sieve is mainly suitable for particle size classification of various solid waste, simple process, domestic waste, construction waste, scrap metal, as well as mining, power plants, building materials, gold treatment and other industries.

The Shaftless Tumbler Sieve is an innovative and highly efficient screening equipment, revolutionizing the screening process across multiple industries. With its unique shaftless design, this sieve offers enhanced performance, reliability, and versatility, making it an ideal choice for businesses seeking to optimize their material screening operations.​
Working Principle​
The Shaftless Tumbler Sieve operates on a combination of circular and linear motion principles. Unlike traditional sieves with a central shaft, this sieve features a shaftless drum structure. When the machine is in operation, the motor drives the eccentric blocks on both ends of the drum to rotate, generating a complex vibration force. This force causes the drum to perform a three - dimensional tumbling motion.​
As materials enter the drum, the tumbling motion makes them move forward along the inclined drum surface in a spiral - like manner. During this process, the materials continuously collide with the sieve mesh. Smaller particles that meet the size requirements pass through the sieve mesh, while larger particles that don't are retained and gradually discharged from the outlet of the drum. The unique motion ensures that materials are fully screened, maximizing the screening efficiency and accuracy.​
Key Features and Benefits​
1. Unique Shaftless Design​
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Reduced Blockage: The absence of a central shaft eliminates the common problem of material entanglement and blockage that occurs in traditional shaft - type sieves. This is especially beneficial when screening materials with high viscosity, long - fiber content, or irregular shapes, such as wet clay, waste paper pulp, and certain types of ores. The smooth inner surface of the shaftless drum allows materials to flow freely, ensuring continuous and unobstructed screening operations.​
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Enhanced Durability: Without a central shaft, there are fewer moving parts that are prone to wear and tear. This significantly extends the service life of the sieve, reducing the frequency of component replacements and maintenance costs. The robust construction of the shaftless drum can withstand heavy loads and harsh working conditions, ensuring long - term reliable performance.​
2. High Screening Efficiency​
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Thorough Screening: The three - dimensional tumbling motion of the drum ensures that materials are fully and evenly screened. Each particle has multiple opportunities to interact with the sieve mesh, increasing the probability of accurate size separation. Compared to traditional sieves, the Shaftless Tumbler Sieve can achieve a higher screening rate, processing more materials in the same amount of time.​
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Adjustable Screening Parameters: The screening efficiency can be easily adjusted by modifying parameters such as the vibration frequency, amplitude, and the inclination angle of the drum. This allows businesses to customize the screening process according to different material characteristics and screening requirements, ensuring optimal performance in various applications.​
3. Versatile Application​
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Wide Range of Materials: The Shaftless Tumbler Sieve is suitable for screening a diverse range of materials, including granular, powder, and fibrous substances. It can be used in industries such as mining, chemical engineering, food processing, and recycling. In the mining industry, it can screen different grades of ores; in the food industry, it can separate various food particles according to size.​
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Multi - stage Screening: It supports multi - stage screening configurations. By installing multiple layers of sieve meshes with different pore sizes inside the drum, materials can be classified into several different size fractions in a single pass, saving time and space compared to using multiple single - stage sieves.​
4. User - Friendly Operation​
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Simple Control System: The sieve is equipped with an intuitive control panel that allows operators to start, stop, and adjust the operating parameters with ease. The clear display and straightforward operation interface require minimal training, enabling operators to quickly master the operation of the machine.​
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Low Noise and Vibration: Despite its powerful screening performance, the Shaftless Tumbler Sieve is designed to operate with low noise and vibration levels. This creates a more comfortable working environment and also reduces the impact on surrounding equipment and structures.