You are here: Home » Blogs » 40 Bar Oil-Free Piston Compressor – Power Your PET Blow Molding

40 Bar Oil-Free Piston Compressor – Power Your PET Blow Molding

Views: 0     Author: Site Editor     Publish Time: 2026-03-31      Origin: Site

Inquire

facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
kakao sharing button
snapchat sharing button
telegram sharing button
sharethis sharing button

High Pressure, Zero Oil, Lower Energy Cost

Are you struggling with unstable 40 bar pressure or worried about oil contamination risks in your PET bottle production?
You need a reliable source of consistent 580 psi (40 bar) oil-free air – and that’s exactly what our purpose built piston compressor delivers. Designed specifically for PET, RPET, and PLA blow molding, it ensures your bottles are formed perfectly, every time.

RKL oil free (10).jpg

Why Choose Our 40 Bar Oil Free Piston Compressor?

Our compressor stands out with six key advantages that directly impact your bottom line and product quality:

✅ Class 0 (ISO 85731) certification – Absolutely no oil in the compressed air. This means no filter failure risks and zero product recalls due to oil contamination. Your brand reputation stays safe.

✅ 20–30% energy savings with Variable Speed Drive (VSD) – The compressor automatically adjusts motor speed to match your actual air demand. Many of our customers have cut their electricity bills by one fifth to nearly one third.

✅ Three-stage compression – Each stage runs cooler and more efficiently, which extends the life of consumable parts and brings you closer to ideal thermodynamic performance.

✅ Double-acting cylinders – Every cylinder compresses air on both the up and down stroke. This design supports true 24/7 continuous operation and provides built-in redundancy: even if one valve needs attention, the machine keeps running.

✅ Low maintenance – Because there is no oil in the compression chamber, you never change oil filters or dispose of used oil. Routine checks are simpler, faster, and less expensive.

✅ Smart PLC + IoT ready–Monitor over a dozen critical parameters in real time, receive automatic fault alerts, and even connect to your plant’s remote monitoring system for predictive maintenance.

Applications Beyond PET Bottles

While PET blow molding is our primary focus, the same oil-free, high-pressure reliability benefits many other industries:

Food & beverage – Blowing PET, RPET, and PLA bottles for water, soft drinks, and edible oils.

Cosmetics & pharmaceuticals – Sterile packaging and cleanroom operations where any trace of oil is unacceptable.

Electronics, aerospace, and chemical – Precision manufacturing, component testing, and leak detection that demand oil-free compressed air.

PET吹瓶机案例图.jpg

Ready to Upgrade Your Blow Molding Line?

Don’t let an unreliable or oil-prone compressor become your production bottleneck. We offer customized quotations based on your exact flow requirements – from 6 to 30 m³/min – and your specific pressure needs.

 Contact our engineering team today for a no-obligation discussion.

 Request a free compressed air audit – we’ll help you discover potential energy savings of 20–30% on your current system.

Quick Links

Products

Contact Us

Telephone: +86-173-2106-2761
 WhatsApp: +8617321062761
Email: Anna@rockymachinery.com
 Address: Room 604, #12, Powerlong Center, No.689 Xiwang Road, Jiading District, Shanghai, China
Leave Us A Message
Copyright © 2025 Shanghai Rocky Machinery Co., Ltd. All Rights Reserved.   沪ICP备2021037284号-2