▸ Key Features:
• Hydraulic Fixed-Ratio (HFR) system engineered for precise 1:1 proportioning of two-part materials
• Positive-displacement pump technology for consistent, repeatable on-ratio flow
• Compatible with static, dynamic, and impingement mixing configurations for application flexibility
• Designed for high-volume, continuous-use production environments including batch, potting, encapsulating, and automated systems
• Stainless-steel wetted components for durability and compatibility with reactive chemistries
• Supports industrial bonding, sealing, and robotic dispensing applications
▸ Applications:
• Sealant and adhesive dispensing
• Polyurethane reactive material processing
• Robotic bonding and automated metering systems
• Vacuum infusion, potting, and encapsulation processes[2](https://www.dispensing.com/products/graco-hfr-two-part-hydraulic-fixed-ratio-meter-mix-dispense-system-configurable)
• High-precision industrial dosing where ratio accuracy is critical
• OEM integration for automated production lines
▸ Alternative Model Numbers:
HFR Standard Series
HFR High-Volume Series
Graco ProMix HFR (related family)
Graco EFR System (related dispensing architecture)
Graco XM PFP Series (ratio-control equipment family)
▸ Common Misspellings or Phrasing:
SN-9104
Graco HFR System
Graco Hydraulic Mixer
HFR 1:1 Metering System
Graco Sealant Proportioner
