700kg/hr Feed Pelletizer: Parts, Working Principle and Applications (20HP, 3-Phase)
Producing consistent, high quality animal feed requires more than mixing raw materials. Pelletizing improves feed efficiency, reduces wastage, and ensures uniform nutrition. This article breaks down a 700kg/hr feed pelletizer, highlighting its key parts, specifications, applications and suitability for different users.
Machine Overview
- Capacity: ~700 kg per hour
- Motor: 20HP, 3-phase electric
- Pellet Die Size: 4mm
- Rollers: 3 compression rollers
Application: Poultry, dairy, pig and general livestock feed.
This configuration places the machine in the small-to-medium commercial category, suitable for farmers moving beyond manual or low-capacity systems.
Key Parts and Their Functions:
1. Feed Hopper
The feed hopper is the entry point for mixed raw materials such as maize meal, bran, soybean meal or premixes.
Function:
- Holds and guides feed into the pelletizing chamber
- Ensures steady flow for uniform pellet formation
Why it matters:
An evenly fed machine produces uniform pellets and reduces strain on internal components.
2. Grinding / Pelletizing Cavity
This is the core working area where pellet formation occurs.
Function:
- The die and rollers work together to compress feed
- Raw material is forced through die holes to form pellets
- Key detail: This machine uses 3 rollers, which improves compression balance and increases output consistency compared to 2-roller designs.
3. Pellet Die (4mm)
The die determines pellet diameter.
4mm die is ideal for:
- Broilers and layers
- Young pigs
- Dairy concentrates
- General-purpose livestock feed
- Why 4mm is popular: It balances ease of intake, digestibility and minimal feed wastage across multiple animal types.
4. Compression Rollers (3 Rollers) Rollers press feed material against the die.
Advantages of 3 rollers:
- More uniform pressure distribution
- Higher pellet density
- Reduced die wear
- Improved output stability at higher loads
This design is better suited for continuous operation than single or dual-roller systems.
5. GearboxThe gearbox transfers power from the motor to the pelletizing system at the correct speed and torque.Function:Reduces motor speedIncreases torque for compressionWhy it matters:Pelletizing requires torque, not speed. A strong gearbox prevents stalling and overheating under heavy loads.
6. Pure Copper Motor (20HP, 3-Phase)
The motor provides the driving force.
Why 3-phase, 20HP is important:
- Stable power delivery
- Lower current per phase
- Better efficiency for continuous work
- Less overheating compared to single-phase motors
This setup is suitable for commercial environments where reliability matters.
7. Discharge Port
Finished pellets exit through the discharge chute.
Function:
- Directs pellets for cooling, drying or bagging
- Prevents pellet breakage during exit
Fresh pellets are usually warm and should be cooled before storage to prevent moisture buildup.
Working Principle (Simplified)
- Mixed feed enters through the hopper
- Rollers rotate and compress feed against the die
- Feed is forced through 4mm die holes
- Pellets are cut and discharged
- Pellets are cooled and stored
This process increases bulk density, palatability, and feed efficiency.
Application Suitability,
Poultry Farmers:
- Broilers and layers benefit from uniform pellet size
- Reduced feed wastage
- Improved feed conversion ratio (FCR)
Dairy Farmers:
- Ideal for concentrate pellets
- Easier mixing of supplements and minerals
- Consistent intake per animal
Pig Farming:
- 4mm pellets suit growers and finishers
- Improved digestion and weight gain
Feed Vendors & Cooperatives:
- 700kg/hr supports small commercial sales
- Can supply multiple farmers daily
- Lower production cost compared to buying finished pellets
What Buyers Often Overlook (But Shouldn’t)
Moisture content:
Ideal feed moisture is 12–15%. Too dry causes crumbling; too wet blocks the die.
Cooling:
Pellets should be cooled before bagging to prevent mold.
Die maintenance: Regular cleaning extends die life and maintains pellet quality.
Power stability: A stable 3-phase supply is essential for motor longevity.
Who This Machine Is Best For:
✔ Medium-scale poultry or dairy farmers
✔ Feed processors supplying local markets
✔ Farmer cooperatives
✔ Agribusinesses expanding from mash to pellets
❌ Not ideal for very small backyard operations
❌ Not suitable for floating fish feed production
Buyer’s Checklist: Before Purchasing a 700kg/hr Feed Pelletizer, use this checklist to confirm the machine matches your power supply, feed type, scale and operating conditions.
1. Power & Electrical Readiness
☐ Do you have 3-phase electricity available on site?☐ Is the supply stable enough to run a 20HP motor continuously?
☐ Do you have proper circuit protection (breaker, isolator, earthing)?
Why this matters: Voltage fluctuations shorten motor life and reduce output consistency.
2. Intended Feed Type
☐ Poultry feed (broilers/layers)
☐ Dairy concentrates
☐ Pig feed
☐ Sinking fish feed (not floating)
Note: This machine is not an extruder. If you need floating fish feed, this is the wrong equipment.
3. Pellet Size Requirements
☐ 4mm pellets suit your animals’ age and species
☐ You understand that changing pellet size requires a different die
Tip: Many buyers underestimate how often pellet size matters for young vs mature animals.
4. Raw Material Preparation
☐ Ingredients are properly ground before pelletizing
☐ Feed moisture can be maintained at 12–15%
☐ You have a mixer or consistent mixing method
Reality check:Pelletizers do not grind whole grains efficiently. Poor preparation = poor pellets.
5. Production Volume
☐ Your daily feed demand justifies ~700kg/hr capacity
☐ You plan to run batches long enough to benefit from machine efficiency
Rule of thumb: If you produce under 200–300kg per day, this machine may be oversized.
6. Post-Pellet Handling
☐ You have space for cooling pellets after discharge
☐ You can dry pellets before bagging if needed
☐ Storage area is dry and ventilated
Why it matters: Warm pellets stored immediately can mold or crumble.
7. Maintenance & Wear Parts
☐ You understand dies and rollers are wear parts
☐ You can schedule periodic lubrication and cleaning
☐ Spare parts availability has been confirmed
Hidden cost: Ignoring maintenance shortens die life and increases operating cost.
8. Operator Skill Level
☐ Someone on site can monitor load, sound and pellet quality
☐ Operator understands when to stop the machine to avoid damage
Important: Most pelletizer failures are operator-related, not machine defects.
9. Expansion Considerations
☐ Future plan includes higher output or multiple die sizes
☐ Electrical infrastructure can support longer operating hours
Thinking ahead: Upgrading later is costlier than choosing correctly once.
Final Buyer Reality check:
If you can confidently tick at least 7 out of 9, this pelletizer is likely a good fit.
If not, downsizing or adjusting expectations may save money and downtime.
Visit us for purchase and technical consultation.
Call or WhatsApp: 0723-082-610
