FAQs on PET Air Compressors

In the world of PET bottle production, choosing the right air compressor can greatly impact efficiency, production quality, and operational costs. Below are answers to some of the most frequently asked questions related to PET air compressors.

Q1: What Factors Should You Consider When Buying and Operating a PET Bottle Production Compressor?

When buying a PET air compressor, several factors should be considered to ensure optimal performance and efficiency:

• Energy Efficiency: Energy efficiency is the most critical factor in compressor selection. A compressor with high energy efficiency will consume less power, significantly reducing long-term operational costs. While the initial investment in a high-efficiency compressor may be higher, the cost savings on energy bills over time will more than compensate for this. It’s important to view the compressor as a long-term investment in your production system, not just a short-term purchase.
• Maintenance: Look for a compressor that requires minimal maintenance. Regular maintenance can increase operational costs, so a low-maintenance system can help you save time and money.
• Reliability: The compressor needs to be durable and reliable to avoid unexpected downtime, which can affect production and costs. Ensuring that the machine has a solid warranty and after-sales support can be crucial for minimizing future repair and replacement expenses.

Q2: How to Size a Compressor That’s Appropriate for Your PET Bottle Production?

Sizing the right compressor for PET bottle production involves calculating the necessary pressure and flow rate. Here are the key points:

• Pressure: Observe the actual blowing pressure needed in a pressure meter of a blow molding machine in operation.
• Flow: Flow, or Free Air Delivery (FAD), depends on the number of bottles to be produced per hour. For instance, a Gairs 6m³@30bar compressor can blow around 12,000 1L bottles per hour.

Q3: How to Size an Air Receiver That’s Appropriate for Your PET Bottle Production?

The air receiver size should be approximately 10% of the compressor’s air delivery volume. For instance:

• A compressor producing 20 m³/min of air flow requires an air receiver of 2000 liters.

You can always opt for a slightly larger air receiver size if needed, but never undersize your air receiver size!

Q4: What Are the Cooling Requirements of the Compressed Air System for the Production of PET Bottles?

There are two main types of cooling systems for compressors: air-cooled and water-cooled. The choice depends on the environmental conditions:

Air-Cooled Compressors: Ideal for areas with moderate temperatures. However, their efficiency may drop in regions with high ambient temperatures as they rely on the surrounding air for cooling.

Water-Cooled Compressors: In regions with high perennial temperatures or when cooling efficiency is a priority, water-cooled units are a better choice. They offer better cooling effect using equipment such as a cooling tower or chiller, maintaining consistent compressor performance.

If your region has high average temperatures, opting for a water-cooled compressor like the OGWBE series is more energy-efficient and ensures the compressor operates at optimal performance levels.

Q5: What Do You Need to Keep in Mind When Using a Gairs PET Air Compressor?

To get the best performance and longevity from your Gairs PET air compressor, keep the following in mind:

• Ventilated and Clean Compressor Room: Make sure the compressor is placed in a well-ventilated, clean room to prevent overheating and contamination.
• Use RO Water: It’s essential to use RO (Reverse Osmosis) water for lubrication and cooling to avoid scale build-up and damage to the air end. Contaminated water can negatively impact the compressor’s performance and lifespan.
• Routine Maintenance: Regularly check filters, valves, and other components to keep the compressor running smoothly. Following the manufacturer’s maintenance guidelines can extend the life of the compressor.
• Monitor Air Quality: Ensure the air entering the compressor is free from contaminants like oil or moisture that could damage the machine or affect product quality.

Q6: What Should You Mention When Asking Gairs Experts for Help in Building the PET Bottle Production System?

When you reach out to Gairs for help in building your PET bottle production system, be sure to provide the following information:

• Compressed Air Volume: If you don’t know the exact compressed air volume, provide the specifications of your blow molding machine to help us determine the required air capacity.
• Distance Between Compressor and Usage Points: The distance can affect the pressure drop and air delivery. It’s important to know how far the compressed air needs to travel.
• Working Hours: Let us know whether the compressor will operate 24/7 or for 16 hours a day. This helps us determine the best model based on duty cycle and efficiency.
• Country/Region: Share your location to account for local factors like ambient temperature and altitude, which can influence the cooling requirements and compressor performance.

Providing these details will allow Gairs’ experts to customize a solution that perfectly fits your production needs.