High Throughput Banana Type Flip Flow Screen for High Moisture Coal

The Banana-type flip flow screen integrates the multi-slope geometry of variable-slope screens with the high-acceleration relaxation principle of flip-flow technology. This hybrid design is optimized for high-tonnage sizing applications where traditional linear screens fail due to bed depth and moisture. The screen surface typically features a steep incline (24°-45°) at the feed end, transitioning to a flatter slope (0°-8°) at the discharge end. This "banana" shape causes material to flow at a high initial velocity, resulting in a thin particle bed that stratifies almost instantly.

By utilizing flexible polyurethane mats driven by a dual-mass vibration system, the machine achieves a projectile acceleration of up to 50g (500 m/s²). While the main frame experiences low mechanical stress (2-3g), the elastic mats alternately stretch and relax at 8-16 Hz, or over 800 cycles per minute. During expansion, the aperture shape changes slightly, fundamentally preventing "pegging" of near-size particles. In coal preparation, this system increases specific throughput rates by 3 to 4 times compared to conventional screens, particularly for particles smaller than 6mm with 15% moisture content. The thinner bed depth in the middle section allows fines to reach the screen surface faster, while the lower slope at the discharge end increases dwell time for a precise final cut.

• Manufactured from highly resilient polyurethane elastomer
• Flip flow mats with joints maintain elasticity and dimensional accuracy
• Designed for both bolting and clamping systems
• Compatible with all screen decks worldwide regardless of machine brand
• Universal fit for various deck dimensions and installation characteristics

Our team

Huatao Group is a leading innovative mineral equipment solutions provider, dedicated to improving operational efficiency and productivity in the mining and mineral processing industries. We are always committed to providing high quality and customer satisfaction, and are committed to becoming a trusted partner for companies.

HUATAO GROUP boasts a specialized team dedicated to developing mineral equipments and parts. Our primary business encompasses vibrating screens, polyurethane screen, rubber screen panels, mineral crushers, beneficiation machinery and other mineral equipment parts. Furthermore, we specialize in custom engineering, precision manufacturing, quality assurance, after-sales support and continuous innovation. Our products are renowned for their durability, efficiency, and reliability. We also offer equipment installations, operational training, and a wide range of spare parts to ensure our clients' operations run smoothly. With advanced technology and a focus on sustainability, HUATAO GROUP stands as a leading player in the mineral processing industry. If you are looking for polyurethane screen panels manufacturers, please contact us for more information!

RFQ

Q: What essential material information must I provide when submitting a Flip Flow Screen RFQ?

A: To ensure accurate equipment selection and sizing, the following data is required:

1. Material Name (e.g., Coal, Iron Ore, Municipal Waste, or Compost).

2. Maximum Feed Dimension and approximate feed size analysis.

3. External Moisture Content (%) and whether the material is sticky or fibrous.

4. Bulk Density of the material.

5. Required Separation Sizes (cut points).

6. Desired Processing Capacity in tons per hour (t/h).

Q: Why is a Flip Flow Screen superior to a Linear Vibrating Screen for damp or sticky materials?

A: Standard linear screens often fail due to "blinding," where moisture creates a film that covers screen holes. Flip Flow screens use a dual-mass vibration principle to alternately stretch and relax elastic polyurethane mats. This motion creates a 50g projectile acceleration that breaks the adhesive bonds of moisture films and dislodges near-size particles, fundamentally preventing clogging.

Q: How do I choose between MDI and TDI polyurethane for my screening mats?

A: Selection depends on your specific application and environment:

• Prioritize MDI for high-wear, high-impact tasks (e.g., iron ore, aggregates) or operations in harsh chemical (acidic/alkaline) and wet environments. MDI offers superior durability and a service life 1.5 to 3 times longer than TDI.
• Consider TDI if you need high elasticity to protect fragile or brittle materials (e.g., agricultural grains) or if operating in extreme cold down to -40°C.

Q: What is the maintenance intensity for these screen mats, and is the replacement process difficult?

A: Polyurethane mats are designed for low maintenance due to their self-cleaning properties. Modern designs utilize boltless fastening systems (such as snap-fit interference wedges or PU connectors), which create an absolutely smooth surface to prevent material buildup. These systems allow for very rapid replacement, enabling one operator to change ten square meters of screen surface in just one working hour

Q: Why Flip Flow instead of Linear Screens?

A: Flip Flow screens generate 50g acceleration which breaks surface tension and breaks up caked material, preventing blinding and pegging in materials with up to 50% moisture.

Q: MDI vs. TDI: Which should I choose?

A: Use MDI for heavy-duty, high-wear mining (ores/aggregates) as it lasts 1.5–3x longer. Use TDI for agriculture or extreme cold (down to -40°C) where flexibility is priority.

Q: How long does it take to replace screen mats?

A: Using boltless fastening systems, a single operator can replace 10 square meters of screen surface in just one hour.

Q: Can I customize the aperture shape?

A: Yes. Options include square, round, oblong, and specialized boomerang or peanut shapes designed to eject wedged particles