Description
ELGi AB Series Oil-Free Rotary Screw Air Compressors
100% Oil-Free Air • ISO 8573-1 Class 0 & ISO 8573-7 Compliance • 15–150 HP Range
ELGi AB series oil-free screw air compressors are built for operations that need clean compressed air without oil contamination risk and with a focus on lifecycle cost and energy efficiency.
Key Features
- Delivers 100% oil-free compressed air to help prevent process contamination in sensitive applications.
- Designed to meet ISO 8573-1 Class 0 and ISO 8573-7 air quality expectations for oil-free systems.
- Engineered to bridge energy efficiency and low total cost of ownership for industrial operations.
- Unique rotor design approach to reduce pressure losses and improve overall stage efficiency for dependable performance.
Specifications
| MPN | AB Series |
|---|---|
| Series | ELGi AB Series |
| Compressor Type | Oil-Free Rotary Screw |
| Power Range | 15–150 HP |
| Typical Capacity Range | 29–560 CFM |
| Air Quality | ISO 8573-1 Class 0 / ISO 8573-7 (per brochure) |
Benefits
- Supports food & beverage, pharmaceutical, electronics, and other industries where oil carryover risk is unacceptable.
- Helps protect finished goods, instruments, valves, and pneumatic systems from oil-related residue and rework.
- Improves uptime with a purpose-built oil-free screw package designed for continuous operation.
Installation & Application Notes
- Even with oil-free compression, drying and filtration may still be required to control moisture, particulates, and system-specific contaminants.
- Confirm airflow and pressure requirements at the point of use, then size the compressor and receiver capacity accordingly.
- Plan condensate management and downstream air treatment based on ambient conditions and required dew point.
Frequently Asked Questions
ELGi AB Series Oil-Free Rotary Screw Air Compressors
▶️ Question: What does “Class 0” mean for compressed air?
Answer: Class 0 refers to the highest level of oil purity under ISO 8573-1. For processes where oil contamination is not acceptable, Class 0 oil-free air helps protect product quality and reduce risk.
▶️ Question: Do I still need dryers and filters with an oil-free compressor?
Answer: Often, yes. Moisture control (drying) and particulate filtration are commonly required for reliable equipment operation and to meet point-of-use air quality needs—even when the compression process is oil-free.
▶️ Question: Which industries typically choose oil-free rotary screw compressors?
Answer: Oil-free systems are commonly selected for food & beverage, pharmaceutical, electronics, textile, and other processes where oil carryover can affect product quality or compliance.
▶️ Question: How do I choose the right size AB series compressor?
Answer: Start with your peak airflow demand (CFM) at the required pressure, add a margin for growth and leakage, and then select a compressor that can meet that demand continuously. Receiver sizing and duty cycle also matter.
▶️ Question: What should I plan for installation?
Answer: Confirm power availability, provide adequate ventilation, and design the air system with appropriate receiver capacity, isolation valves, and downstream treatment to match the application.
