FYBS2040 Square Gyratory Swing Screen Silica Sand Frac Sand Multi Deck Grading Square Swing Sieve

Square gyratory swing screen, commonly known as square swing screen, is a mainstream high-capacity and high-precision grading machine widely used in mineral, building material and powder industries. Different from rotary vibrating screens that rely on high-frequency vibration, it simulates the elliptical gyratory movement of manual sieving. Materials spread gently and move forward uniformly on the screen surface for classification with low impact and stable accuracy. It is an ideal upgrade solution for overseas buyers whose rotary vibrating screens cannot meet production capacity requirements.

Compared with ordinary rotary vibrating screens, square swing screens have obvious advantages. Its throughput can reach 5–10 times that of rotary vibrating screens. 1–8 screen decks are optional, which can separate multiple particle sizes in one single run. Equipped with standard bouncing ball anti-blocking system, it greatly reduces mesh clogging for easy-sticking materials such as silica sand, frac sand, mica powder and resin pellets. Thanks to low-impact operation, the service life of screen mesh is extended and long-term spare parts cost is cut. The fully enclosed dust-proof structure keeps noise at a low level, meeting environmental and noise control standards for workshops in Europe and America. Customization is available: carbon steel or 304 stainless steel construction, plus optional ultrasonic deblinding system, variable frequency drive and extended feeding hopper for dry and wet screening. It should be noted that square swing screens are large and heavy. Large models like FYBS-2040 are shipped separately on fumigated wooden pallets and normally loaded into a 40HQ container. Buyers need to confirm workshop height, lifting equipment and site conditions in advance.

Our case customer is a large silica sand processor in Turkey, supplying glass factories and artificial quartz stone manufacturers. The customer originally ran two large rotary vibrating screens in series for grading and suffered three persistent problems. First, the output failed to match order demands. The target capacity was 25 tons per hour, but particle size consistency was poor. Fine powder was often mixed into coarse fractions, leading to failed inspections and returns from downstream glass plants. Second, sharp-edged silica sand frequently blocked the mesh. Workers had to stop production every two hours for manual cleaning, which wasted plenty of production hours. Third, screen mesh wore out quickly, resulting in high consumption and replacement costs. The customer had enquired European brands before, yet faced high prices and long lead times. Finally, they contacted us via Made-in-China to look for a reliable alternative solution.

Based on the customer’s material characteristics, capacity target and grading requirements, our technical team recommended the FYBS-2040 four-deck square gyratory swing screen. It adopts carbon steel main frame with 304 stainless steel screen frames, bouncing ball anti-blocking system and variable frequency motor. The VFD allows flexible adjustment of gyration speed and screen inclination to adapt to silica sand with different moisture content and guarantee stable screening performance. The machine is exported in separate fumigated pallet packages: screen box, support frame and motor accessories are packed individually, with a total gross weight of around 7300 kg. We provide CE certificate, factory test running video, English installation drawings, remote commissioning guidance, one-year warranty and long-term spare parts supply.

After delivery, hoisting, installation and commissioning, the machine performed as expected. One FYBS-2040 replaced the two original rotary vibrating screens. It separates 5 different particle sizes in one production line with stable capacity of 25–30 tons per hour and screening accuracy above 97%. Uniform particle size fully satisfies strict standards of glass production. The anti-blocking system works well. Frequent shutdown cleaning is no longer required; only routine inspection per shift is needed. Downtime is greatly reduced, and the service life of screen mesh is tripled. Energy consumption per ton of finished product is also lowered, bringing better cost control for long-term operation.

After half a year of stable operation, the customer placed a repeat order for another identical square swing screen. They also entrusted us with screening projects for mica powder and feldspar powder, becoming our long-term loyal buyer. The customer commented: “This square gyratory swing screen solved our biggest headaches of insufficient output and unstable particle size. Less downtime and lower consumable costs help us accept large orders steadily.”

This case proves that a square swing screen is not a simple substitute for a rotary vibrating screen. It is an efficient grading solution designed for large-scale continuous production. For overseas purchasers who need high throughput and multi-stage classification for silica sand, frac sand, chemical powder, feed, salt and other materials, the FYBS-2040 square gyratory swing screen is a cost-effective choice.