Stone Separator Machine

The Stone Separator Machine by Sunny Solly Machines is a two-stage cleaning and separation system engineered to efficiently remove dust, fines, husk, peels, stones, and other foreign impurities from agricultural and food products. Combining reciprocating sieving technology with controlled air separation, the machine delivers high cleaning efficiency while preserving product quality and minimizing manual sorting requirements. Designed as two independent yet integrated processing segments arranged sequentially, the machine progressively separates materials based on their particle size, density, and aerodynamic characteristics, ensuring that only clean and usable product is discharged at the final outlet.

Description

The Stone Separator Machine is suitable for processing pulses and legumes, grains and cereals, spices and seeds, betel nuts (Supari) and similar agricultural produce.

Stage 1 – Primary Cleaning and Pre-Separation

Raw material is fed through the top-mounted infeed hopper into the first reciprocating sieve section. The inclined sieve, operating with a controlled to-and-fro motion, begins the cleaning process by separating fine dust and powder particles from the incoming material. Simultaneously, an air stream generated by the integrated blower removes lightweight contaminants and suspended impurities. During this stage:

  • Fine dust and powder are separated and discharged through the designated side outlet.
  • Lightweight peels, husk, shells, and similar waste materials are removed and discharged through the front outlet.
  • The partially cleaned material is then transferred to the second processing stage for final separation.

Stage 2 – Stone Separation and Final Product Recovery

The cleaned material enters the second reciprocating sieve section where density-based separation takes place. Through a combination of controlled sieve movement, inclined conveying action, and airflow assistance, heavier foreign materials such as stones migrate and accumulate at the upper end of the sieve tray. During this stage:

  • Stones and dense contaminants are collected separately at the upper end of the incline.
  • Clean and usable product is discharged through the final product outlet.
  • Additional dust and lightweight impurities are simultaneously removed to ensure a higher degree of product purity.

Specifications

Parameter General Specifications
Machine Type Two stage Inclined reciprocating sifter with blower
Operating Principle To-and-fro reciprocating motion with air separation
Sieve Mesh As per product specifications
Sieve Material Mild Steel (MS) or Stainless Steel (SS-304)
Drive System Suitable HP based on sieve size and batch load
Motor HP motor, HP blower
Loading / Discharge Top mounted hopper; Separate outlets for usable product and waste
Body Construction Mild Steel (MS)
Machine Output 500 kg/hr
Power Consumption 4.5 kW
Electricity Supply 3 Phase, 440 V
Machine Dimensions Part 1: 55 x 36 x 72 inches approx., Part 2: 55 x 36 x 52 inches approx.
Machine Weight 800 kg approx.

Optional Add-ons

● Infeed conveyor  ● Collection Tray  ● Trolley  ● Customised sieve mesh configurations