The rectangular gyratory sifter machine is also called a reciprocating screen, a square gyratory screen from the movement trajectory of the sieve box. The vibration force generated by its driving device is an inertial force winding along the fixed axis, and its direction changes according to a certain law.

  • Model: FYBS-1536 , FYB-S2040
  • Material: Carbon Steel
  • Mesh Size: 2-300 mesh
  • Layers: 1-10 layers
  • Motor Power: 5.5kW/7.5 kW
  • Capacity: 100kg – 15 Tons/hour
  • Customized: Acceptable


  • Abrasive material and ceramic industry: building sand, mica, alumina, abrasive, refractory material, slurry, etc.
  • Food industry: sugar, salt, alkali, gourmet powder, starch, milk powder, yeast powder, pollen, food additives, etc.
  • Metallurgy and mining industry: quartz sand, ore, meteorite, garnet, etc.
  • Mechanical industry: casting sand, powder metallurgy, electromagnetic material, and metal powder, etc.

Working Principle

The essence of the square gyratory sifter is the reciprocating inertial force formed by the rotation of the eccentric wheel winding the dead axle. According to the structure characteristics and working principle of a rotex gyratory screener, the screen surface is arranged with a level or incline (the angle of inclination is 0-5 degrees). After turning on the gyratory sifter, the screen box takes reciprocating movement under the inertial force, screen box drives the screen surface to make periodic shaking, which makes the materials on the screen surface make a directional jumping movement with the screen box. 

During the period, the material less than the screen aperture falls to the layer, and the material bigger than the screen aperture makes a jumping movement, discharged from the coarse outlet.

gyratory sifter
gyratory sifter


This equipment is a super-square gyratory sifter (SYT-FYBS) model developed and produced by our company with a hanging structure. It has applied for several national protection patents and is leading the industry.

The screen frame and the screen mesh installation method adopt a unique and innovative design, making the installation very convenient. Usually 9-layer design can be divided into 10 grades at one time, or 4 layers + 4 layers equivalent to 2 sets sieve machine, or 2 layers + 2 layers + 2 layers equivalent to 3 sets sieve machine, Or designed as 1 layer +1 layer +1 layer +1 layer +1 layer is equivalent to 5  sets sieve machines.

Gyratory Sifter drawings
gyratory sifter machine



ModelScreen sizeScreening areaScreen inclinationLayersPowerNumber of turnsCase travel
FYBS15361.5*3.5 m4.5-9 m25-81-105.5180-26025-60 mm
FYBS20402.0*4.0 m8-9 m25-81-107.5180-26025-60 mm
Customized sizes available upon request


  • The screen mesh frame and the screen mesh and bouncing balls installation method adopt a quick open design and are easy to install,5-10 minutes to replace the screen mesh, which can be performed from the feed of the machine. Reducing equipment downtime and increasing production capacity.
  • Diameter 40 mm bouncing balls to clean sieve mesh.
  • Discharge port: The height can be customized. The color is optional.

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