
VPACK MACHINERY, a professional manufacturer of water and beverage equipment, presents the W-type oil-free water-cooled air compressor — a high-quality Oil free compressor for PET bottle blowing designed for the water, beverage, and PET packaging industries. As a reliable oil free air compressor supplier, this W-type model integrates advanced oil-free technology, efficient water cooling, and robust structure, providing clean, stable and energy-saving compressed air for your PET bottle blowing production.
It achieves 100% oil-free air discharge (ISO Class 0 standard), avoiding oil contamination to protect product purity — a key requirement for food-grade packaging. Suitable for both small and large PET bottle production lines, this Oil free compressor for PET bottle blowing enhances productivity and reduces operational costs.
Key Features & Advantages
100% Oil-free Performance (Core for PET Bottle Blowing)
As a dedicated Oil free compressor for PET bottle blowing, it adopts oil-free lubrication, ensuring no oil contamination in compressed air. Compliant with food-grade standards, it safeguards PET bottle hygiene and reduces maintenance costs by eliminating oil replacement and oil filter checks, which is more cost-effective than ordinary oil free air compressor models.
Efficient Water Cooling System
Equipped with closed-loop water cooling, the oil free air compressor maintains stable temperature during 24-hour continuous operation, suitable for high-volume PET bottle blowing lines. It reduces heat loss, extends component service life, and lowers operating noise.
Robust W-type Structure
Unique W-type 3-cylinder design ensures stable operation with low vibration and noise. Optimized crankshaft and connecting rod improve compression efficiency, making this Oil free compressor for PET bottle blowing durable for long-term heavy-duty work.
Energy-saving & Easy Maintenance
This oil free air compressor features high-efficiency motor and intelligent load adjustment, saving up to 35% energy. Key components are easily accessible, with imported parts extending service life and reducing maintenance frequency.


Technical Parameters
Below are standard parameters of our Oil free compressor for PET bottle blowing. Customized solutions are available. Data is measured under ISO 1217 standard (intake temp 20℃, pressure 1barA).
项目Item | 单位Unit | 内容参数Specification&Parameter | 备注Remarks | |
型号Model | WW-16/40 | |||
工作介质 Working Medium | 空气Air | |||
结构形式 Structure Type | 角度式Angular Type | |||
冷却方式 Cooling Method | 水冷Water-cooled | |||
润滑方式 Lubrication Method | 气缸、填料无油润滑 Oil-free Lubrication for Cylinders & Packing | 运动部件压力润滑 Pressure Lubrication for Moving Parts | ||
润滑油泵 Lubricating Oil Pump | 单独配置Independently Configured | |||
传动方式 Transmission Method | 皮带传动Belt Drive | |||
列 数 Number of Columns | 3 | |||
压缩级数 Compression Stages | 3 | |||
排气量 Displacement | Nm3 /min | 16.0 | ||
吸气压力 Suction Pressure | MPa(G) | 常压Atmospheric Pressure | ||
排气压力 Suction Pressure | MPa(G) | 4.0 | 表压Gauge Pressure | |
吸气温度 Suction Temperature | ℃ | ≤40 | ||
排气温度 Discharge Temperature | ℃ | 不高于环境温度5℃ ≤ Ambient Temperature + 5℃ | 冷却后After Cooling | |
电机功率 Motor Power | kW | 160 | ||
空压机转速 Compressor Speed | Rpm | 645 | ||
启动方式 Starting Method | 星三角启动Star-Delta Starting | |||
循环水流量 Circulating Water Flow | T/h | 32 | ||
单台设备总重 Total Weight per Unit | Kg | 4920 | ||
压缩机撬尺寸 Compressor Skid Dimensions | mm | 3200*2000*2022 | L×W×H | |
驱动电机 Driving Motor | 功率 Power | 160kW | 转速Speed | 1460r/min |
电压 Voltage | 380V/50Hz | 防护等级Protection Class | IP54 | |
Note: VPACK reserves the right to optimize parameters. For customized oil free air compressor, contact our sales team.
Working Process
Our Oil free compressor for PET bottle blowing operates in 4 precise steps, ensuring efficient and stable oil-free air supply for your production:
Step 1: Intake
Motor drives pistons to draw filtered clean air into cylinders, protecting the oil free air compressor and ensuring air purity.
Step 2: Compression
Pistons compress air; W-type structure distributes load evenly. Water cooling system absorbs heat to avoid overheating, keeping air 100% oil-free.
Step 3: Discharge
High-pressure oil-free air is discharged to PET bottle blowing line after cooling, preventing thermal damage to bottle坯.
Step 4: Cycle & Regulation
Intelligent control adjusts output according to air demand, saving energy and ensuring continuous supply for PET bottle blowing.
