Atlas Copco ZR55-90 Oil-free Screw Air Compressors

Tips：Why has the Atlas Copco ZR55-90 oil-free screw compressor become the benchmark for industrial clean air?

The Atlas Copco ZR 55-90 is a high-efficiency, oil-free rotary screw air compressor from the ZR/ZT series (model ZT/ZR 55-90 (VSD) (FF)). Its core features an ISO 8573-1 Class 0 certified airend imported from Germany, ensuring 100% oil-free operation and eliminating the risk of compressed air contamination. It is particularly suitable for industries with stringent air quality requirements, such as the food, beverage, pharmaceutical, and chemical industries. This model features variable speed drive (VSD) technology, an optimized cooling system, and a low-pressure drop design, achieving a balance between high air delivery volume (FAD) and minimal energy consumption. The fully integrated design includes internal piping, cooler, motor, and control system. The full-size (FF) version also includes a built-in desiccant dryer (IMD), providing a plug-and-play, "all-in-one" solution that significantly reduces installation and maintenance costs.

1. 100% Oil-free Guarantee Technology

The twin-screw oil-free compression element and stainless steel cooling pipeline are used to prevent lubricating oil from contacting the air, ensuring that the output air of Atlas Copco ZR55-90 Oil-free meets the pharmaceutical/food grade clean standards (such as ISO 22000).

2. Intelligent variable frequency energy saving system

ZR 55-90 VSD eliminates no-load energy consumption by dynamically adjusting the motor speed (30%~100% load). Compared with fixed frequency models, the average annual electricity bill is saved by 35%, which is suitable for fluctuating gas consumption scenarios (such as automobile spraying lines).

3. Heat recycling

The water-cooled design supports energy recovery modules, converting 94% of the compression heat into 70°C hot water for boiler preheating or workshop heating (such as the case of community heating in the Wolfsburg plant).

4. Integrated drying solution

Integrated MD adsorption dryer, with a pressure dew point as low as -40°C and no additional energy consumption. Compared with traditional external dryers, pipeline pressure drop is reduced by 15%.

1.Food and beverage: pneumatic control of filling lines (such as Schwarzwald-Sprudel carbonated beverage plant) to avoid the risk of deterioration caused by oil contamination.

2.Pharmaceutical manufacturing: aeration of fermentation tanks in sterile workshops, in line with FDA cGMP cleanliness requirements.

3.Automobile spraying: providing oil-free high-pressure air to ensure zero defects on the paint surface (Volkswagen Poland factory case).

4.Electronic chips: purging of precision components to prevent electrostatic adsorption of particles.

1.Compression Main Unit: AGMA A5 gearbox (lifetime > 100,000 hours) and carbon-coated rotor, with 40% lower wear rate.

2.Control System: Elektronikon® controller integrates SMARTLINK IoT module, real-time monitoring of energy consumption and early warning of faults.

3.Anti-corrosion Structure:

Stainless steel precooler and robot-welded pipeline, resistant to condensation corrosion, suitable for high humidity environment.

4.Low-maintenance Design:

Labyrinth gas-water separator, reduces downstream filter load; electronic drain valve operates with zero gas loss.

1.Cargill Factory in Turkey: Replaced the fixed frequency unit with Atlas Copco ZR55-90 Oil-free, saving 35% of electricity per year and recovering the investment in 18 months.

2.Lidergraf Printing Factory in Portugal: After adopting ZR 55-90 VSD, the color calibration stability increased by 90%, eliminating waste caused by oil pollution.

3.Third-party certification: The Antwerp production base in Belgium obtained ISO 22000 (food safety management system) to ensure that there is no pollution risk in compressor manufacturing.

1.Global localized operation and maintenance:

service outlets in more than 150 countries, providing 2-hour emergency response and original spare parts (bearings/sensors, etc.).

2.Life cycle management:

Free SMARTLINK energy efficiency analysis platform, optimizing gas usage strategy;

3.Customized maintenance plan:

12,000-hour maintenance for gearbox, lifetime maintenance-free for motor.

4.Flexible solutions:

Tropical moisture-proof kit (for Southeast Asian customers), high-altitude version (Andes mining project).

Q1: How to verify Class 0 oil-free certification?

Each Atlas Copco ZR55-90 Oil-free passes the ISO 8573-1 oil content test (≤0.01 mg/m³) before leaving the factory, and the certificate is attached to the electronic control cabinet of the fuselage.

Q2: Is the VSD inverter effective in a low-pressure environment?

ZR 55-90 VSD supports 1 bar(e) low-pressure start (such as low wind pressure requirements in textile mills), and the speed adaptive adjustment ensures stable flow.

Q3: What is the water temperature requirement of the heat recovery system?

It needs to be combined with a softened water circulation system (calcium content <50 ppm) to prevent scaling. The recovery water temperature can be customized in the range of 45°C~70°C.

Q4: How long is the maintenance cycle?

The core components (such as air bearings) have a design life of 60,000 hours. It is recommended to replace the pre-filter cotton and electrical calibration every 8,000 hours.

 Note：Welcome to our store for consultation. Our professional team will answer all your technical questions about Atlas Copco ZR55-90 Oil-free air compressor.

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