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Product Description
A circular vibrating screen, also called a round vibrating screen or vibro screen, separates powder, granules and slurry by size using a three-dimensional motion that no linear machine can match. Chenxing builds the range from 400 mm to 2000 mm diameter, with 1 to 5 decks on one unit, so a single screen can grade solids into 2 to 6 finished fractions, pull oversized particles and foreign matter out of a product, or filter liquid at up to 100 m³ per hour. Dry powder passes down to 500 mesh or 0.028 mm, and liquid can be filtered to 5 µm. The plant engineer who already runs powder processing line solutions can add this screen where sizing accuracy matters most.
A circular vibrating screen is a three-dimensional gyratory sifter built around a vertical vibration motor. The motor sits below the screen body and carries eccentric weights on its upper and lower ends, which turn the rotation into a horizontal, vertical and inclined motion that reaches every point of the mesh. Product enters through the dust cover, passes over 1 to 5 layers of mesh, and leaves through separate discharge outlets, so coarse fraction, fines and oversize never mix again.
The machine handles three basic jobs. Size grading splits solid particles into equal groups, and one unit can sort 2 to 6 particle fractions at the same time. Impurity removal takes out the small amount of oversized material that should not reach the next station. Solid-liquid separation clears insoluble matter from slurry, and the screen keeps working while the filtrate flows through. This makes the machine a practical middle step between mixing units that feed the circular screen and the packing or dosing line that follows.
The vertical vibration motor is the only moving power source. Eccentric weights on the upper and lower shafts convert rotation into three-dimensional motion, and that motion is transmitted to the whole screen body through the springs. The material entering from the feed port spreads across the mesh, and the angle between the two eccentric blocks controls the travel pattern.
0°: material moves from the centre toward the outside, suited to coarse screening.
15°: spiral dispersion for general materials.
45°: fast spiral motion with a longer travel path, used for fine material.
90°: material gathers from the outside toward the centre, used for wet filtration.
Each layer of mesh carries bouncing balls underneath. The balls hit the mesh continuously as the frame vibrates, which keeps the apertures open when the product is sticky or near the mesh size. Oversize particles stay on the deck and move to the discharge port of that layer, while material close to the aperture size drops through to the next deck. The operator adjusts the phase angle, not the motor, so the same machine can switch between a fast dewatering pass and a slow fine-screening pass.
The screen separates dry powder down to 500 mesh or 0.028 mm and filters liquid down to 5 µm. That range covers starch, resin, glaze, slurry and every common industrial powder in between. The bouncing ball cleaning system under every deck keeps the mesh free, so the machine runs continuously instead of stopping for manual mesh brushing.
Impurities and coarse material discharge automatically, and throughput reaches 5 t/h on a single machine. With 1 to 5 layers fitted, one unit produces 2 to 6 different product grades at the same time. The body is fully sealed, so powder does not leak into the workshop and liquid does not splash out. Discharge outlets rotate 360°, and a screen change takes 3 to 5 minutes, which matters on a line that switches recipes several times a day.
Mesh options run from 2 to 500 mesh, and the contact parts can be carbon steel, 304 stainless steel or plastic, depending on the product and the hygiene standard. For plants that already use automatic compounding systems matched to the screen output or pelletizing lines that need screened polymer granules, the screen simply takes the place of the old manual sieving step.
Models are named by the frame diameter in millimetres. A "600-3S" means a 600 mm diameter frame, 3 decks and SUS304 stainless steel contact parts; "600-3P" means the same frame and decks with Q235A carbon steel contact parts. The base tub and pedestal are carbon steel as standard, with a stainless base tub available on request. The range starts from 400 mm diameter for laboratory and small batch work and runs up to 2000 mm for high-throughput plants.
| Frame diameter (mm) | 600 | 800 | 1000 | 1200 | 1500 | 1800 | 2000 |
|---|---|---|---|---|---|---|---|
| Screen area (m²) | 0.24 | 0.45 | 0.67 | 1.0 | 1.6 | 2.43 | 3.01 |
| Mesh range (mesh) | 2-500 | 2-500 | 2-500 | 2-500 | 2-500 | 2-500 | 2-500 |
| Feed particle size (mm) | <10 | <10 | <15 | <15 | <20 | <20 | <30 |
| Vibration rate (rpm) | 1500 | 1500 | 1500 | 1500 | 1500 | 1500 | 1500 |
| Effective mesh diameter (mm) | 560 | 760 | 930 | 1130 | 1430 | 1760 | 1960 |
| Decks | 1-5 | 1-5 | 1-5 | 1-5 | 1-5 | 1-5 | 1-5 |
| Motor power (kW) | 0.25 | 0.55 | 0.75 | 1.1 | 1.5 | 2.2 | 3 |
Values follow the external product listing and are subject to confirmation at enquiry.
The main structure is simple to maintain. The dust cover carries the feed port and a sloped cone. The screen frame is rolled and welded plate with a bearing ring and a flange ring. The mesh, from 600 mm to 1800 mm and larger, fits the frame with stainless steel, carbon steel or plastic options. The mesh support frame, the bouncing ball cleaning system, the vertical vibration motor and 12 to 20 isolation springs sit on a welded steel base with a service door and an electrical switch seat. Motor options cover 2, 4, 6 and 8 pole types plus horizontal types, with vibration rates of 2870, 1460, 980 and 740 rpm, and an explosion-proof motor can be designed when the plant environment requires it.
For a complete powder or granule handling line, the screen often works beside grinding machines that prepare powder before circular screening, continuous powder suction conveyors after the screen, powder suction equipment for screen discharge and crushed material suction machines in the same powder line, so the discharge ports line up with the next machine instead of needing a manual bucket transfer.
The base machine handles most dry sizing and wet filtration jobs, but six special configurations cover the harder cases.
Standard: solid-liquid filtration and dry size grading with impurity removal.
Ultrasonic: an ultrasonic cleaning aid keeps ultra-fine and sticky material moving through meshes down to 635 mesh for electrostatic fine powder.
Flanged edge: a larger feed opening stops material from splashing and makes the mesh easy to inspect.
Gate type: a discharge gate extends the retention time and raises the separation accuracy, so material feeds in more than it leaves.
Filter type: built for liquid filtration where the slurry carries little solid and the goal is clear filtrate.
High frequency: a 3000 rpm vibration motor handles high-concentration slurry such as ceramic glaze.
Material selection follows the product. Carbon steel suits dry industrial powder and low-corrosion duty. 304 stainless steel suits food, pharmaceutical and chemically aggressive products. Plastic contact parts fit abrasive powders that must not pick up metal contamination. The same machine can be fitted with an auxiliary equipment around the circular screen package, including feed hoppers, connecting chutes and quick-release clamps, when the rest of the room is already planned.
The circular screen appears wherever particle size has to be controlled. Chemical plants use it for resin, paint, industrial chemicals, pigment, coating and traditional Chinese medicine powder. Food plants screen sugar powder, starch, salt, rice flour, milk powder, soya milk, egg powder, soy sauce and juice. Metal and mineral plants grade aluminium powder, lead powder, copper powder, ore, alloy powder, welding flux powder, manganese dioxide, electrolytic copper powder, magnetic material, abrasive powder, refractory material, kaolin, lime, alumina, heavy calcium carbonate and quartz sand. Environmental treatment plants filter waste oil, wastewater, dyeing wastewater, additives and activated carbon.
The table below lists reference results from installed machines. The model column uses the frame diameter, deck count and contact material instead of any brand model name.
| Material | Specific gravity | Mesh | Wet/Dry | Output | Machine |
|---|---|---|---|---|---|
| Wheat starch | 1 | 250 mesh | wet | 3200 kg/h | 1200 mm, 1 layer |
| Flour | 0.6 | 24 mesh | dry | 1500 kg/h | 1000 mm, 1 layer |
| Soy sauce | 1 | 100 mesh | wet | 6500 kg/h | 1200 mm, 1 layer |
| Salt | 1.2 | 30/80 mesh | dry | 5000 kg/h | 1500 mm, 1 layer |
| Corn starch | 0.6 | 40 mesh | dry | 1600 kg/h | 1000 mm, 1 layer |
| Chinese medicine powder | 0.8 | 80 mesh | dry | 550 kg/h | 800 mm, 1 layer |
| PVC resin | 1 | 10/5 mm | dry | 3000 kg/h | 1200 mm, 2 layers |
| Polyethylene powder | 0.45 | 48/100 mesh | dry | 100 kg/h | 800 mm, 2 layers |
| Graphite | 1.2 | 16/40/80 mesh | dry | 1400 kg/h | 1000 mm, 3 layers |
| Lead powder | 11.34 | 10/80 mesh | dry | 1000 kg/h | 1000 mm, 2 layers |
| Emery | 4 | 60 mesh | dry | 300 kg/h | 1000 mm, 1 layer |
| Aluminium powder | 0.9/1.2 | 80/120 mesh | dry | 350 kg/h | 800 mm, 2 layers |
| Welding flux powder | 0.95 | 20/200 mesh | dry | 550 kg/h | 1000 mm, 2 layers |
| Kaolin | 0.4 | 100 mesh | dry | 200 kg/h | 1000 mm, 1 layer |
| Mud slurry | 1.1 | 250 mesh | wet | 3200 kg/h | 1000 mm, 1 layer |
The screen also fits into recycling lines. PET bottle washing lines beside the screen station and film washing lines feeding screened regrind use the same unit to keep the reclaimed material within spec, while two stage recycling machines with integrated screening steps and agglomerated scrap ready for circular screening show how the screen closes the loop on reprocessed polymer. For a full line, recycling line planning for screened reclaimed powder starts with the screen capacity before the washing and drying stations are sized.
Yes. The circular screen is used for solid-liquid separation in ceramic, pigment and paint plants. A single deck with the correct mesh handles wet material, and the 90° eccentric setting makes the liquid gather toward the centre for faster filtration.
Dry powder can be screened down to 500 mesh or 0.028 mm. With the ultrasonic cleaning option, electrostatic fine powder down to 635 mesh can be processed without the mesh blinding.
With 1 to 5 decks, a single machine can separate the feed into 2 to 6 finished fractions at the same time. The top deck catches the coarse fraction and each lower deck holds a finer cut.
The vertical vibration motor turns the rotation into horizontal, vertical and inclined movement, so the material travels over the whole mesh surface instead of only one line. That is the difference between this machine and a linear vibrating screen.
Bouncing balls under every deck hit the mesh continuously while the machine runs. For very fine or sticky powder, the ultrasonic configuration adds another cleaning action on top of the balls.
304 stainless steel contact parts are standard for food duty. The frame, mesh and base can also be built with plastic contact parts when metal contamination must be avoided.
Yes, with the right configuration. The ultrasonic type is designed for ultra-fine and sticky material, and the gate type extends retention time for material that needs a slower pass to separate cleanly.
A circular screen moves material in a three-dimensional path and suits fine powder grading, impurity removal and liquid filtration. A linear screen moves material in a straight line and suits dewatering and medium-sized solids. Most plants run both in different steps of the same line.
A screen change takes 3 to 5 minutes. The discharge outlets rotate 360°, so the new deck can be aligned to the same take-off position without moving the machine.
The outlet rotates 360°, so it can be turned to the next machine, the packing station or the bagging point. Layout changes do not require a new machine.
Chenxing Machinery supplies circular vibrating screens to powder, food, metal and environmental plants worldwide. For mesh selection, deck configuration, material options and delivery time, contact Nicole at ceo@cxsljx.com or +86 159 5118 7228. Include the product name, bulk density, target mesh and required capacity, and the engineering team will recommend the frame size and configuration. The the Chenxing product range for powder and granule handling and application cases from screened material plants show how the machine fits into a full line, and buyers can also send the mesh and capacity data for a screen quote directly through the site. Technical drawings and screen datasheets and drawings sit in the download area, while the Chenxing screen manufacturing background page explains how each frame is built. For common screening questions and Chenxing screen installation news, browse the site before sending the enquiry. For more information about this machine, view more machine details.
