Industrial Ultrafine Grinding & Particle Screening Systems

High-efficiency industrial pulverizers, dust-collecting universal grinders, and three-dimensional rotary vibrating screens engineered for starch, grain powder, bread crumbs, and feed classification.

Industrial Pulverizing & Sifting Equipment Portfolio

WFJ series ultrafine grinder with integrated air classifier and dust removal system.

WFJ Series Ultrafine Grinder

High-speed mechanical pulverizer integrated with an air classifier and cyclone separator. Processes dried starch flakes into fine 100–300 mesh powders with zero dust pollution up to 1000 kg/h.

Model B universal dust-collecting pulverizer with vacuum aspiration unit for grain milling.

Model B Universal Dust-collecting Grinder

Versatile standalone mechanical grinder equipped with an integrated vacuum aspiration dust collector. Effortlessly pulverizes extruded food pellets and raw grains into uniform 20–120 mesh powders cleanly and efficiently.

zhuoheng s49 rotary vibrating screen sieve

S49 Series Rotary Vibrating Screen

High-performance three-dimensional rotary vibrating screen for multi-deck particle classification. Features adjustable 3D gyratory motion to rapidly sift fine powders and granules across 2–500 mesh specifications without screen blinding.

GFB series granule square screen for flat gyratory classification of bread crumbs.

GFB Series Granule Square Screen

Heavy-duty flat gyratory square sifting machine designed for high-volume granule classification. Utilizes dual vibration motors to classify bread crumbs, feed pellets, and starches across 0.25–15mm size ranges smoothly.

Milling, Grinding & Screening Technical Parameters
Zhuoheng Industrial Pulverizers, Universal Grinders & Rotary Vibrating Sieves
Machine Model Capacity Fineness / Mesh Installed Power Dimensions (L×W×H) & Weight
I. WFJ Series Ultrafine Grinders
WFJ Model 15 50 – 200 kg/h 100 – 300 Mesh 16.75 kW
Shaft: 5800 r/min		 4200 × 1250 × 2700 mm (850 kg)
WFJ Model 20 80 – 300 kg/h 100 – 300 Mesh 22.15 kW
Shaft: 4200 r/min		 4700 × 1250 × 2900 mm (850 kg)
WFJ Model 30 100 – 800 kg/h 100 – 300 Mesh 46.00 kW
Shaft: 3800 r/min		 6640 × 1300 × 3960 mm (960 kg)
WFJ Model 60 200 – 1000 kg/h 100 – 300 Mesh 84.15 kW
Shaft: 3200 r/min		 7500 × 2300 × 4530 mm (3200 kg)
II. Model B Universal Dust-Collecting Grinders
Model 20B 60 – 150 kg/h 20 – 120 Mesh Crush: 4.0 kW
Vacuum: 0.55 kW		 1600 × 1100 × 1650 mm
Model 30B 100 – 300 kg/h 20 – 120 Mesh Crush: 5.5 kW
Vacuum: 0.75 kW		 1800 × 600 × 1650 mm
Model 40B 200 – 500 kg/h 20 – 120 Mesh Crush: 7.5 kW
Vacuum: 1.50 kW		 2050 × 1600 × 1700 mm
Model 50B 300 – 800 kg/h 20 – 120 Mesh Crush: 18.5 kW
Vacuum: 2.20 kW		 2150 × 1750 × 2700 mm
III. S49 Series Rotary Vibrating Screens
S49-600 Area: 0.2289 m² 2 – 500 Mesh 0.75 kW
Vibration: 0.25 kW		 1 - 4 Layers
S49-800 Area: 0.4183 m² 2 – 500 Mesh 1.10 kW
Vibration: 0.55 kW		 1 - 4 Layers
S49-1200 Area: 0.9499 m² 2 – 500 Mesh 1.50 kW
Vibration: 1.10 kW		 1 - 4 Layers
S49-1500 Area: 1.5386 m² 2 – 500 Mesh 2.20 kW
Vibration: 1.50 kW		 1 - 4 Layers
S49-1800 Area: 2.2687 m² 2 – 500 Mesh 3.00 kW
Vibration: 4.00 kW		 1 - 3 Layers
IV. GFB/GFP Series Granule Square Screens
GFP-616 Size: 0.25 – 15 mm 1 – 3 Layers 2 × 0.25 kW 670 × 1190 mm
GFP-620 Size: 0.25 – 15 mm 1 – 3 Layers 2 × 0.40 kW 670 × 1840 mm
GFP-820 Size: 0.25 – 15 mm 1 – 3 Layers 2 × 0.75 kW 800 × 1835 mm

Your Trusted Partner in Extrusion Technology​

National High-Tech Enterprise & ISO 9001 Certified Source Factory

Since 2010, Jinan Zhuoheng Extrusion Machinery has specialized in the R&D and precision manufacturing of twin-screw extrusion systems. Eliminating middlemen, we deliver 100% factory-direct pricing, custom formula support, and complete turnkey engineering services worldwide.
  • 15+ Years — Extrusion R&D Experience
  • 60+ Countries — Global Installations
  • 20+ Patents — Proprietary Technologies
International certifications of Zhuoheng Extrusion Machinery including SGS ISO 9001, Bureau Veritas (BV), Supplier Assessment Report, and CE Mark.

Frequently Asked Questions

Everything you need to know about our milling, grinding & screening machines

The WFJ Series Ultrafine Grinder is an advanced milling system with an internal air classifier, designed to produce ultra-fine powders ranging from 100 to 300 mesh (ideal for baby food rice cereal, modified starch, and health powders). The Model B Universal Grinder is a compact standalone pulverizer producing 20 to 120 mesh coarser powders (perfect for general grain flour, spices, and pre-milling raw extrudates).
The WFJ unit incorporates a VFD-controlled air classifier wheel inside the crushing chamber. By adjusting the speed of the classifier wheel, operators can precisely set the target particle cut-off. Particles finer than the target size pass through the wheel to the cyclone collector, while coarser particles are rejected and returned to the milling rotor for continuous re-grinding.
The S49 series generates a three-dimensional gyratory motion (horizontal, vertical, and inclined) that causes material to spread in a spiral pattern from the center to the periphery. For sticky or moist powders, an automated bouncing ball tray installed underneath the screen mesh continuously strikes the wire cloth, preventing particle blinding and maintaining high throughput.
Sanitation and durability are paramount. All material-contact surfaces, hopper inlets, cyclone separators, and sifting screen decks are fabricated from certified food-grade SUS304 stainless steel (or SUS316L upon request). Grinding hammers and impact teeth are forged from hardened alloy steel to withstand continuous high-speed mechanical impact.
The GFB/GFP Series Granule Square Screen uses a flat gyratory motion with low acceleration, making it ideal for fragile materials. It is widely deployed at the exit of bread crumb drying lines or pet food coolers to accurately separate oversized chunks, target needle/pellet granules, and fine powdery dust across 1 to 3 deck layers without destroying the fragile Panko needle structure.
Because we manufacture these standard units continuously, standalone WFJ grinders, Model B pulverizers, and S49 vibrating screens feature a rapid factory delivery lead-time of 7 to 15 working days. We maintain a complete spare parts inventory (including screen meshes, grinding knives, and pulse bags) available for express global shipment.

Technical Resources

Expert guides and strategies to maximize your production ROI

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Global Headquarters

Address:

No. 21, Daqiao Road, Daqiao Town, Tianqiao District, Ji'nan, Shandong, China

Phone / WhatsApp:

+8613521991288

Email:

avaywang@zhuoheng-extrusion.com

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