SHED 1

Destoner — 3 In 1 Blower / Destoner / Grader

NFIC-KUP-U05-02

Machine at a glance

Unit
Unit 5 — Rice Milling & Grain Cleaning
Shed / location
SHED 1
Zone
Raw Material Cleaning & Prep
Actual capacity / range
Minimum 250 Kg/hour under standard operating conditions
Actual power
Maximum 3 HP, 3 Phase Motor with starter

What this machine helps make

Operating SOP

1. Pre-operation checklist

• Sieves/screens correct for grain variety — paddy sieve differs from jowar sieve
• Blower outlet clear
• Destoning chamber inlet clear

2. Start-up procedure

1. Switch on BLOWER first — 15 sec before main motor
2. Switch on main motor

3. Operating steps / parameters

1. Switch on BLOWER first — 15 sec before main motor
2. Switch on main motor
3. Feed raw paddy/grain steadily — rated 250 kg/hr
4. Monitor stone outlet — empty stone trap when full
5. Monitor grain outlet — clean, uniform stream
6. Check grading separation — adjust screens if grains blending
7. Run empty 2 min when batch complete

4. Shutdown procedure

7. Run empty 2 min when batch complete

5. Cleaning / sanitation

• Empty stone trap
• Brush screens
• Log: grain variety | input weight | cleaned output | stones removed | any quality observation

6. Safety / PPE

• Stone trap outlet — keep clear of personnel
• Blower discharge — keep face away

7. Troubleshooting

Stone carryover in grain output — blower speed adjustment needed — call supervisor

8. Preventive maintenance

Routine prevention is embedded in the pre-operation and post-operation checks; no separate time-based preventive-maintenance interval is stated on the source card.