Design and Working Principle

The Soya Grinding line operates on a continuous, automated principle comprising five critical stages:

Step 1: Material Feeding

• Untoasted Soya DOC flakes/cakes are fed using a controlled feeder.
• Ensures:
  • Stable and uniform feeding
  • Consistent grinding quality
  • Prevents mill motor overload

Step 2: Impact Grinding in ACM Rotor

• Rotor operates at 4,000–8,000 RPM.
• Grinding occurs through:
  • Impact from hammers/pins
  • Shearing against liner
  • Air turbulence
• Airflow keeps product suspended, preventing heat buildup.
• Important for preserving heat-sensitive soya proteins.

Step 3: Air Classification

• Material enters dynamic classifier zone.
• Classifier action:
  • Fine particles pass through classifier wheel.
  • Coarse particles are rejected and returned for re-grinding.
• Ensures:
  • Narrow particle size distribution
  • Minimal oversize
  • Real-time fineness control by changing classifier RPM

Step 4: Pneumatic Conveying & Cooling

• Blower creates conveying loop.
• Functions:
  • Transports product through system
  • Keeps temperature low
  • Improves classifier efficiency
• Prevents:
  • Protein denaturation
  • Colour change
  • Quality degradation

Step 5: Bag Filter & Product Collection

• Bag filter separates powder from air.
• Process:
  • Fine particles are collected in bins.
  • Ultrafine particles (<5%) are captured in filter bags.
  • Clean air is released or recirculated.
• Ensures emissions remain below industrial norms.

Step 6: Product Discharge

• Final soya DOC powder (150–250 microns) is collected.
• Used for:
  • Packing
  • Blending
  • Protein extraction processes

Model Description

(Indicative values based on standard Soya DOC with <1.5% oil)

Variant	Model	Capacity	Target Fineness
SA-60-MS	ACM 60 MS	900–1000 Kg/hr	95% 150–180 Microns
SA-100-MS	ACM 100 MS	1450–1500 Kg/hr	95% 150–180 Microns

Key Components

Component	Function	Key Technical Feature
ACM Mill (Air Classifying Mill)	Performs grinding and classification of Untoasted Soya DOC	Integrated rotor + classifier, low-heat grinding, adjustable fineness (150–250 µm)
Bag Filter System	Captures fine powder and ensures dust-free air discharge	99% product recovery, pulse-jet cleaning, maintains hygiene
Centrifugal Fan (C-Fan / Blower)	Provides airflow for conveying, cooling, and classification	High-volume air delivery, maintains <15°C temperature rise
Control Panel (PLC/HMI)	Controls and monitors entire plant operation	VFD for classifier/mill, safety interlocks, real-time parameter monitoring
Vibro Shifter (Sieve)	Ensures final particle size consistency and removes oversize	Multi-deck vibration, uniform screening, stainless steel design

Features & Benefits

• Low-Heat Operation

All components work together to maintain a cool grinding environment, protecting protein integrity of Untoasted Soya DOC.

• Consistent Particle Size Output

Integrated mill, classifier, airflow system, and shifter ensure uniform fine powder (150–250 μm).

• High Product Recovery (>99%)

Efficient separation and dust control minimize material loss throughout the system.

• Dust-Free, Hygienic Operation

Bag filter, sealed connections, and controlled airflow maintain clean processing conditions suitable for feed/food.

• Energy Efficient System

Optimized mill design, high-efficiency fan, and precision automation reduce overall power consumption per ton.

• Reliable Continuous Operation

All major components (mill, blower, filters, control panel) are designed for 24/7 industrial duty.

• Automation & Easy Control

PLC/HMI panel integrates all equipment, providing real-time monitoring, alarms, and simple operation.

• Low Maintenance Requirements

Wear-resistant mill internals, self-cleaning bag filter, and vibration-balanced equipment reduce downtime.

• High Throughput Capacity

System configuration allows consistent processing of 100–2,500 kg/hr depending on model.

• Improved Final Product Quality

Combined grinding, classification, filtration, and sieving enhance powder flowability, purity, and application performance.

Applications

• Animal Feed Formulations

(Poultry, cattle, aqua, pet food)

• Protein Extraction Processes

(SPC – Soy Protein Concentrate, SPI – Soy Protein Isolate)

• Food & Nutrition Blends

(Soya flour, bakery mixes, protein fortification)

• Extrusion-Based Products

(Texturized vegetable protein – TVP/TSP)

• Industrial Bio-Processing Applications

(Fermentation substrate, organic fertilizer base)