High-capacity Hertz HRD 70 refrigerated air dryer delivers reliable dry compressed air at a consistent +3°C pressure dew point. Compact design with integrated filters, digital controller, and tropical-climate capability – ideal for workshops and light-to-medium industrial applications.

Full Product Description

The Hertz HRD 70 is a robust refrigerated compressed air dryer engineered for dependable moisture removal across a wide range of compressed air systems. It cools incoming air to a stable pressure dew point of +3°C, protecting tools, machinery, and processes from corrosion, water damage, and contamination.

Designed for efficiency and durability, the HRD 70 features an oversized condenser and R-134a refrigerant, enabling continuous operation at high inlet temperatures (up to 60°C) and ambient temperatures (up to 50°C). Integrated inlet and outlet filters reduce particles to 0.01 micron and residual oil to 0.01 mg/m³, providing clean air in a single compact unit.

Key Benefits

• Consistent +3°C pressure dew point for reliable air quality
• Very low pressure drop to maximise system efficiency
• Compact footprint with excellent service access
• Digital DigiPro controller for energy-saving operation and clear monitoring
• Separate electrical and cooling sections for safer maintenance
• Suitable for tropical and high-ambient conditions
• High-efficiency heat exchanger for excellent performance

Ideal Applications
Automotive workshops, small-to-medium manufacturing, spray painting, packaging lines, CNC machining, woodworking, and any application requiring consistently dry compressed air.

Technical Specifications

Capacity stated at reference conditions: 7 bar, 35°C inlet, 25°C ambient (ISO 7183). Correction factors apply for other conditions — contact us for accurate sizing.

Why Choose Hertz HRD from Airlink Compressors?
Genuine Hertz equipment supported by our UK expertise, free mainland UK delivery, and responsive after-sales service. We stock and support the full Hertz range of compressors, dryers, and air treatment products.

Yes, airlinkcompressors.com offer an installation & commissioning service, please contact support for further information on technical@airlinkcompressors.com

If you purchase any equipment from airlinkcompressors.com you are entitled to free full technical support from experts in the trade, supporting with installation, repairs & servicing. We also offer onging maintenance packages inhouse, please contact technical@airlinkcompressors.com for further information.

Yes, airlinkcompressors.com deliveries can be sent to different adresses across the UK.

Yes, we do deliver to NI (Northern Ireland) for larger items please ask for a carrige costing - sales@airlinkcompressors.com

Yes, a VAT invoice is sent automatically once the order has been dispatched to the email address supplied when originally ordered.

Yes, airlinkcompressors.com offer an installment option through Klarna, Please click here for further information.