DH Series Oil-Free Water-Lubricated Permanent Magnet Variable Frequency Screw Air Compressor Class 0 Certified 7–410 kW

Product Overview

The DH Series Oil-Free Water-Lubricated Permanent Magnet Variable Frequency Screw Air Compressor by Gardner Denver delivers 100% pure, oil-free compressed air, meeting the most stringent air quality standards. Designed for industries where air purity is critical, this compressor ensures zero contamination, high reliability, and significant energy savings. With a power range of 7–410 kW and multiple pressure options (3–40 bar), it is the ideal solution for a wide range of applications.

Key Features

• 100% Oil-Free Air
  Uses water for lubrication and cooling inside the compression chamber—no oil means zero risk of oil contamination. Certified to ISO 8573-1 Class 0.

• Permanent Magnet Variable Frequency Drive (VSD)
  Saves over 30% energy compared to fixed-speed compressors. Matches air output to demand, reduces power consumption, and lowers operating costs.

• Highly Reliable Single Screw Design
  Balanced rotor forces minimize vibration and wear, ensuring long service life and stable performance.

• Quiet Operation
  Direct drive design and sound-insulated enclosure keep noise levels as low as 57 dB(A).

• Stainless Steel Piping & Water Circuit
  Full stainless steel air and water pipelines prevent corrosion, reduce pressure loss, and extend system life.

• Intelligent Control System
  Touchscreen controller with self-diagnosis, MODBUS RS485 interface, and remote monitoring capabilities.

Technical Advantages

• Low Maintenance
  Easy access to consumable parts and simplified water circuit system reduce downtime and service costs.

• Wide Range of Models
  Available in low-pressure (3–4 bar), standard-pressure (7–10 bar), and medium-pressure (20–40 bar) configurations, including two-stage compression models for higher efficiency.

• Eco-Friendly & Safe
  Water-based lubrication eliminates oil disposal issues and reduces environmental impact.

Applications

Ideal for industries requiring clean, dry, and oil-free compressed air:

• Food & Beverage

• Pharmaceuticals & Biotechnology

• Electronics & Semiconductor Manufacturing

• Hospitals & Laboratories

• Textile & Packaging

• Chemical & Glass Manufacturing

• PET Blowing

Performance Parameters (Selected Models)

Full specifications available upon request.