Top 10 ROPP Filling Capping Machines | GMP Compliant | Shanghai Reliance

1. What types of liquids can be filled into roll-on bottles?

Answer: Roll-on machines can handle various liquids, including:

• Low-viscosity (e.g., perfumes, toners, medical oil, green oil, fragrance oil, fresh oil )
• Medium-viscosity (e.g., serums, essential oils, massage oil)
• High-viscosity (e.g., gels, ointments, cream, paste)

Note: The filling pump type (gear pump, peristaltic pump, etc.) must match the liquid’s viscosity.

2. How does the machine ensure the ball (roller ball) is properly seated?

Answer: Advanced machines use:

• Vision systems to detect ball alignment
• Mechanical press-fit stations to secure the ball
• Automated quality checks to reject faulty assemblies

3. What’s the difference between semi-automatic and fully automatic roll-on fillers?

• Feature Semi-Auto Fully Auto
• Speed 10-30 BPM 30-80+ BPM
• Labor Needed Manual loading/unloading Fully hands-off
• Cost Lower Higher

4. Can one machine handle different roll-on bottle sizes?

Answer: Yes, with quick-change tooling (adjustable filling nozzles, capping heads). Some machines even auto-detect bottle size via sensors.

5. How is leakage prevented during filling and capping?

Solutions:

• Precision filling (no over/under-filling)
• Controlled torque capping (tight but not too tight)
• Vacuum sealing (for sensitive liquids like alcohol-based products)

6. What’s the best capping method for roll-on bottles?

Options:

• Servo capping (most precise, ideal for glass bottles)
• Magnetic capping (prevents bottle damage)
• Pneumatic capping (cost-effective for plastic bottles)

7. How do I clean the machine between different products?

Answer: Machines with CIP (Clean-in-Place) systems allow fast cleaning without disassembly. For sticky liquids (oils, gels), manual cleaning may be needed.

8. What industries use roll-on filling machines?

Common Applications:

• Cosmetics (perfumes, deodorants)
• Pharmaceuticals (topical medicines)
• Essential oils & aromatherapy
• Personal care (antiperspirants, serums)

9. What’s the average filling accuracy?

Typical Tolerance:

• ±1% (for peristaltic/servo pumps)
• ±2-3% (for gear/piston pumps)

Higher accuracy = less product waste.

10. How much does a roll-on filling and capping machine cost?

Price Range:

• Small Speed Filling Capping: 12,000–15,000 USD
• Fully auto: 15,000 - 25,000 USD 
• High Speed auto: 25,000 - 35,000 USD
• Top Quality / Advanced : 25,000 - 35,000 USD

BONUS: Quick Troubleshooting Tips