Water Filling Machine 3–20L-Zhangjiagang Grandee Machinery Co., Ltd.

1. Standard Compatible Range
Our machine is designed as a large-bottle compatible filler, capable of handling 3L to 20L bottles in a single integrated system for rinsing, filling, and capping. This means all sizes from 3L, 5L, 10L, 15L, to 20L are fully supported within the standard configuration.
2. Changeover & Operation
· Tooling adjustment: When switching between different bottle sizes, only the corresponding star wheel / timing screw plates need to be replaced. The changeover process is simple and requires minimal downtime.
· Neck positioning: The machine employs neck-handling / neck positioning conveyance, which minimizes wear on the bottle body and ensures stable transport across all sizes.
· Minimal change parts: Only a few change parts are required to accommodate multiple bottle dimensions.
3. Technical Considerations
Parameter Specification
Capacity range 3L – 20L
Bottle materials PET, PE, PP,etc.
Filling principle Micro-negative pressure gravity filling for precise level control
Control system PLC-controlled with fully automatic operation

Yes, the machine handles both materials.
Feature PET PC
Reusability Single-use(PET) / limited cycles
Reusable up to 60 cycles (PVC)
Heat resistance Low (~70°C max) (PET)
Deforms under heat High (withstands ~120°C) (PVC)
Clarity Good, may have slight tint Excellent, water-clear
Important: If you plan to use PC bottles with hot water sterilization, the machine can support this. For PET bottles, ensure filling temperature stays below 70°C to prevent deformation.

Our large bottle filling system is specifically designed with flexible changeover capability to accommodate multiple bottle sizes within the 3L–20L range, including both 12L and 20L.
How it works:
· To switch between 12L and 20L, you only need to replace the change parts – namely the star wheels (timing screws) and the guide rails. These parts are designed for quick manual exchange.
· The filling valves are height‑adjustable to accommodate different bottle heights, and the PLC control system stores preset parameters for each bottle size, enabling one‑touch recall.
Changeover time: Typically 20–30 minutes for an experienced operator.
Impact on capacity: While the machine can run both sizes, the output rate (BPH) will differ – 20L bottles require longer filling and capping cycles, so the production speed for 20L will be lower than for 12L. We can provide specific BPH figures based on your target valve configuration.
Our recommendation: To confirm full compatibility, we kindly request:
· Container drawings with neck finish details and overall dimensions for both 12L and 20L. · Physical samples (3–5 pcs each) for a trial fit on our machine.
Upon receipt, we will verify the change part design and provide a detailed changeover parts list along with a formal quotation.

High‑pressure rinsing is a critical step in our filling line for the following reasons:
1. Particle removal – Even new PET or PC bottles may contain dust, debris, or manufacturing residues (e.g., flash or fines) that cannot be removed by gravity or low‑pressure spray.
2. Microbial control – The high‑impact water stream effectively dislodges biofilms and potential microorganisms from the inner walls and the neck area, ensuring the bottle is hygienic before filling.
3. Neck and thread cleaning – The neck finish and threads are critical sealing surfaces; high‑pressure rinsing ensures these areas are free of contaminants that could compromise cap sealing integrity.
4. Efficiency – It reduces the need for extended chemical soaking or manual inspection, saving time and labor.

Yes, the machine is equipped with a multi-stage washing and sanitizing system. The bottles are inverted and conveyed through a series of stations that perform the following steps:
1. Pre-rinse: Removes large debris with recovered water.
2. Alkaline Wash: Uses a 1-2% alkaline detergent at 55-65°C to remove fats and organic residues.
3. Drip-off: Allows the alkaline solution to drain.
4. Sanitizing: Employs two stages of disinfectant (e.g., 50-100ppm chlorine dioxide or 200-300ppm peracetic acid) to ensure thorough sterilization.
5. Drip-off: Prevents mixing of different disinfectants.
6. Intermediate Rinse: Flushes away residual disinfectant with recovered water.
7. Final Rinse: Uses purified or ultra-pure product water for a final, contaminant-free rinse.

Dual-high pressure rinsing stages is a customized upgrade designed for specific operational needs. We implement this dual-stage configuration in the following scenarios: 1. Heavy Physical Contamination: When processing returnable bottles with stubborn debris (e.g., sand, algae, or label adhesive), the first stage acts as a primary loosening flush, while the second stage ensures complete evacuation of dislodged particles from the bottleneck and bottom corners.
2. Post-Alkaline Neutralization: After the hot alkaline wash cycle, the first high-pressure rinse utilizes reclaimed water to rapidly remove bulk alkaline residues. The second rinse employs fresh purified/product water to guarantee a neutral pH inside the barrel. This is critical because residual alkalinity would neutralize acidic sanitizers (like peracetic acid), compromising the entire disinfection step.
3. Complex Geometric Coverage: To ensure 100% spray coverage inside the 5-gallon container's deep shoulder and recessed bottom areas, the two stages are equipped with spray nozzles at different angles to eliminate dead zones.

1. Water Supply
· Process Water (for final rinse and product makeup):
·Quality: Potable water meeting local drinking water standards; preferably softened or reverse-osmosis treated for final rinse to avoid scale and ensure product quality.
2. Electrical Power
· Main Power Supply:
· Voltage: 380V / 400V / 415V ±10%, 3-phase, 50Hz (or 460V / 60Hz as per your local standard)
· Total installed power: Approx. 15 – 35 kW (depending on heater type and number of motors)
· Control circuit: 220V / 24V DC (isolated)
· Note: We recommend a dedicated transformer and voltage stabilizer if grid fluctuations exceed ±10%.
3. Compressed Air
· Pressure: 0.6 – 0.8 MPa (6 – 8 bar)
· Flow Rate (Average Consumption): Approx. 1.2 – 2.0 m³/min (for pneumatic actuators, cylinder operations, and optional air-blow drying)