3-10L PET Bottle Water Filling Machine
Fully automatic 3-in-1 bottling machine purpose-built for 3L to 10L large-format PET bottles, integrating bottle rinsing, precision gravity filling, and screw capping in a single enclosed frame. Constructed with food-grade SUS304 stainless steel, equipped with drip-proof filling valves and magnetic torque capping heads. Ideal for large bottle family-pack purified water, mineral water and spring water production, with stable output from 1000 to 6000 bottles per hour.
- Product Overview
- Video
- Core Advantages
- Equipment Structure & Key Details
- Product Configurations
- FAQ
- Recommended Products
Product Overview
The PET bottle water filling machine is a specialized automatic bottling system for large-volume disposable PET bottled drinking water. It integrates bottle feeding, internal rinsing, constant-level filling and screw capping into one monoblock unit, eliminating intermediate conveying and reducing secondary contamination risks.
Designed for small to medium-scale bottled water factories, this machine supports flexible adjustment for 3L, 4L, 5L,6L 7.5L and 10L PET bottles without replacing core parts. All liquid-contact components adopt food-grade SUS304 stainless steel with mirror polishing, fully complying with international food hygiene standards. The whole machine runs with low noise, high filling accuracy and stable long-hour performance.
Video
Core Advantages
3-in-1 Monoblock Design: Rinsing, filling and capping completed in one unit, saving floor space and reducing labor demand.
Wide Bottle Compatibility: Tool-less adjustment for 3-10L PET bottles of different diameters and heights.
Precision Gravity Filling: Constant-level filling principle ensures uniform liquid level across all bottles with ±5ml accuracy, no overflow or under-fill.
Drip-Proof Filling Valves: Specially designed large-flow filling nozzles with cut-off structure prevent liquid dripping after filling and keep bottle mouth clean.
Magnetic Torque Capping: Adjustable magnetic capping heads deliver consistent tightening force, guaranteeing leak-proof sealing without damaging caps.
Food-Grade Construction: Full SUS304 stainless steel body, pipelines and contact parts; smooth surface without dead corners for easy CIP cleaning.
Smart PLC Control: International famous brand PLC + touchscreen HMI with real-time production counting, fault self-diagnosis and adjustable running speed.
Comprehensive Safety Protection: Fully enclosed safety guards with door interlock, overload protection and emergency stop buttons, CE compliant.
Equipment Structure & Key Details
Rinsing part
● Gripper-type clamping mechanism holds bottles by the neck and flips them 180° upside down
● Multi-nozzle spray system rinses the inner wall of bottles with purified water
● Built-in draining section ensures no residual water remains inside bottles before filling
● Bottle clamps are made of food-grade stainless steel, no scratch on bottle surface
Filling Part
● Large-bore filling valves designed for large bottles, fast filling speed with stable liquid level
● Pneumatic lifting valve structure, accurate positioning and tight sealing
● Liquid level can be fine-tuned via adjusting filling time on the touchscreen
● Equipped with liquid level control system in the filling tank to maintain stable pressure
Capping Part
● The cap chute is built with a reverse-cap rejection mechanism to block misoriented caps.
● A photoelectric sensor on the cap chute triggers automatic machine shutdown when caps are depleted.
● A bottle-in detection switch is installed at the capping station.
● A cap-locking cylinder at the cap chute and cap dial junction enables no-bottle, no-cap feeding logic.
● Rotary unit height is adjustable to accommodate different bottle heights.
● The capper is gear-driven by the main frame’s central transmission system.
● All core capping components are precision-machined on CNC machining centers.
Product Configurations
| Main parts | Brand | Country |
| Main drive motor | ABB | Switzerland |
| Cap sorter drive motor | Domestic Chinese brand | China |
| Conveyor drive motor | Domestic Chinese brand | China |
| Rinsing pump | Southern Pump | China |
| Solenoid valve | SMC | Japan |
| Pneumatic cylinder | SMC | Japan |
| Pneumatic components | SMC | Japan |
| Variable frequency drive (VFD) | Mitsubishi | Japan |
| Switching power supply | Mean Well | China (Taiwan) |
| AC contactor | Schneider | France |
| Intermediate relay | Schneider | France |
| Photoelectric sensor | Banner | USA |
| Proximity switch | TURCK | Germany |
| PLC controller | Mitsubishi | Japan |
| HMI touch screen | Mitsubishi | Japan |
| Micro relay | Schneider | France |
FAQ
Q1: Are you a trading company or a direct manufacturer?
A: We are a dedicated manufacturer with over 22 years of industry experience in beverage filling and packaging. Based in Zhangjiagang (only 2 hours from Shanghai), our factory is equipped with advanced technology to provide high-quality equipment at factory-direct prices. We warmly welcome you to visit our facility to see our machines in action.
Q2: What bottle sizes can this filling machine handle?
A: This 3-in-1 monoblock filler is designed for 3L to 10L PET bottles, including standard 4L, 5L, 6L,7.5L and 10L family-pack water bottles. It supports different bottle heights and neck diameters;
Q3: Can this machine fill liquids other than pure water?
A: Yes, it is suitable for all non-carbonated, low-viscosity liquids such as mineral water, spring water, distilled water and purified water.
Q4: Can the machine be adapted to our local voltage?
A: Yes. Standard configuration is 380V 50Hz 3-phase. We can customize 220V, 415V, 440V, 60Hz and other voltage specifications according to your local power supply.
Q5: Do you provide overseas installation and training service?
A: Yes. We send experienced technical engineers to your factory for on-site installation, commissioning and operator training to ensure your production line starts up smoothly and on schedule.