PET Bottle Blowing Machine

Our 4 cavity servo automatic PET bottle blowing machine solves the common pain points of traditional pneumatic blowers: high power cost, unstable bottle wall thickness, high scrap rate, and bottle mold switching downtime. Designed for 24/7 continuous mass production, it supports 200–600ml PET bottles for beverage, food condiment, daily chemical, and pharmaceutical packaging. The machine has a stable production capacity (500ml bottle) of 5500–6000 bottles per hour (BPH) output, ±0.05mm molding precision, and 15–20% energy saving. For bottle manufacturers with medium-sized production capacity, it is a cost-effective upgrade option.

4-Cavity Synchronous Production: 4 cavity synchronous blowing structure molds 4 finished bottles at one cycle, producing 5500–6000 BPH for standard 500ml mineral water bottles. Compared with a 2-cavity automatic bottle blow molding line, it doubles hourly output without expanding factory floor space, helping you boost daily production capacity by over 55% with one single device.

Full Servo Control System: The independent servo drive controls the PET preform feeding, indexing, mold clamping, and stretching processes. It replaces the cylinder pneumatic transmission.

Ⅰ.15–20% lower electricity bills year-round vs pneumatic blowers;

Ⅱ.±0.05mm ultra-uniform bottle wall thickness, cut raw PET material waste by over 7%;

Ⅲ.Less mechanical friction & wear, extend spare part replacement cycle by 2x, reduce daily maintenance cost.

Fully Automated Operation: Fully unmanned cycle from preform auto loading to finished bottle auto unload, built-in real-time intelligent fault self-diagnosis system with alarm prompts. One worker can supervise 2–3 PET bottle blowing machines simultaneously. It reduces nearly 60% reduction in long-term labor costs on the bottle production line.

Wide Bottle Compatibility: Compatible with 200ml–600ml multi-spec PET bottles packaging: round water bottles, custom-shaped bottles, sports drink bottles, and tamper-evident cap bottles. The PET blower is equipped with a mold-changing robotic arm that can complete bottle mold replacement within 30 minutes, avoiding long production downtime when switching bottle types and improving effective production efficiency.

Get Your Custom Quote

Our machine is designed and manufactured in strict compliance with QB/T 2868-2018, the national industry standard for the automatic PET bottle blowing machine. Every core component undergoes rigorous testing to ensure long-term stable operation in harsh industrial environments.

• Intelligent Preform Heating System: 32 independent temperature control heating zones with ±0.5℃ constant temperature accuracy. Each heating tube can be individually adjusted to match different preform thickness, eliminate partial overheating or cold spots. It significantly reduces the incidence of defective bottles, such as whitening, uneven wall thickness, and irregular bottom of bottles.
• High-Pressure Stable Blowing System: Independent 25–30bar stabilized high-pressure blowing air loop with buffer pressure tank. Constant blowing force for every cavity eliminates uneven forming caused by air pressure fluctuation, stabilizing finished product yield above 99.99% and reducing scrap loss.
• Rapid Cooling System: 60-80bar circulating cooling water circuit with optimized mold cooling channel design. It shortens bottle cooling time, improves production efficiency, and prevents bottle deformation.
• Durable Core Components: Servo motors, heating tubes, solenoid valves, and molds are all sourced from industry-leading brands. The machine has a service life of over 10 years with regular maintenance, and can run continuously for over 330 days a year.

This versatile blow molding machine is widely used across multiple industries for mass production of various PET packaging bottles:

 

Beverage industry: 500ml mineral water, 330ml soda, fruit juice bottles, carbonated beverage, small craft beer PET bottles

 

Food industry: Small edible oil bottles, light soy sauce, vinegar squeeze bottles, and honey plastic jars

 

Daily chemical industry: 200ml hand sanitizer, disinfectant, shower gel, shampoo, cosmetic lotion bottles

 

Pharmaceutical industry: Oral liquid medicine bottles, pill packaging plastic containers

Case 1: Riyadh, Saudi Arabia Mineral Water Factory.

Before using our 4-cavity automatic PET bottle blowing machine, the factory used two sets of 2-cavity pneumatic machines with 8% scrap rate.

After equipment upgrade:

1. Daily finished bottle output rose by 32%;

2. Bottle defect rate dropped from 8% to 0.05% (scrap rate reduced by >95%);

3. Monthly electricity cost cut by 18%, saving nearly $3,000 a year.

Case 2: Lagos, Nigeria Mineral Water Packaging Factory

Lagos accounts for over 40% of Nigeria's local packaging market demand, with huge market demand for 50cl and 60cl drinking water bottles. Before upgrading to our 4-cavity full servo automatic PET bottle blowing machine, the local bottle plant operated three sets of 2-cavity semi-auto pneumatic blowers. The old equipment brought multiple production headaches: excessive power consumption, lengthy downtime during mold replacement, and frequent defective bottles triggered by unstable local grid voltage.
After laying out our wide-voltage adaptive servo automatic PET stretch blow machine tailored to Africa's power supply conditions:
1. Daily bottle output achieved a growth of 45%. It improves the factory's market supply capabilities;
2. Product reject rate dropped more, cutting losses from wasted PET preforms;
3. Monthly power expenditure saw a 30% reduction. It solves the high electricity cost pain point widely faced by African packaging factories;

Ask for Best Price

1. Adopts the multi-channel independent servo stretching control system: Real-time synchronous adjustment of four stretching rods ensures perfectly consistent motion trajectory, speed, and stretching length. It solves the inconsistent forming of 4 cavities (a common defect in inexpensive four-cavity machines on the market).

2. Quick-release mold locking mechanism: Equipped with a mold installation robot, mold replacement can be completed within 30 minutes. While competitors often rely on manual handling and installation, resulting in mold changeover times exceeding one hour.

3. 32-section independent heating control: Prevents localized overheating or cold of preforms, adapting to customized preforms of varying thicknesses and offering enhanced compatibility.

4.We support customized full PET bottle production matching lines according to your output demand:

① PET preform injection molding machine (match our blower capacity)

② Automatic water filling & capping machine

③ Bottle labeling & shrink wrapping machine

④ Auxiliary equipment: air compressor, water chiller, crushing recycling machine. One-stop factory layout design, no need to coordinate multiple equipment suppliers alone.

Custom Turnkey PET Bottle Production Line Solution For Your Factory

We stand behind the quality of our machines with comprehensive support and certifications:

Compliance Certifications: All food-contact parts meet food-grade safety standards, with complete material testing reports and mold testing reports. We provide full documentation to help customers complete SC certification and other regional market access requirements.

12-Month Warranty: We offer a 12-month free warranty for the whole machine, with lifetime technical support and spare parts supply.

Global After-Sales Service: Our professional after-sales team provides 24/7 online technical support, and on-site installation, commissioning, and training services for customers worldwide.

Whether you are starting a new PET bottle production line or upgrading your existing equipment, our 4-cavity full automatic servo PET bottle blowing machine can be customized to meet your specific production needs. Contact our technical engineer now to get: detailed power consumption & investment return calculation sheet!

Get Your Custom Solution