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Electric Variable Ratio (EVR) Metering System
Change ratios without changing hardware. Simply program the electric variable ratio, meter mix dispense (MMD) system to move up to 6,400 cubic centimeters (ccs) per minute, while flexing dispense ratios between 1:1 to 5:1 or 2:1 to 10:1.
Versatility and Accuracy for Any 2K Material
Changing conditions no longer means putting production on hold to swap out hardware or pumps that handle different material ratios or viscosities. Electric variable ratio (EVR™) metering allows manufacturers to mix, meter and dispense any of these two component (2K) materials with the same equipment:
- Thermal interface materials (TIMs)
- Epoxies
- Silicones
- Urethanes
- Acrylics
Flexibility for Gap Filling, Gasketing, Bonding, Sealing, Potting or Encapsulating
Reliable, Durable Pumps
- Z-Pumps achieve on-ratio metered continuous flow and shots.
- Z-Pumps with Elite construction withstand the most abrasive adhesives and sealants, such as thermal interface materials (TIMs).
Independent Motors
- One electric motor per metering pump doubles your horsepower, allowing the processing of high viscosity materials.
- Robust electric drives help make the Graco motors virtually maintenance free with smooth, powerful and precise operation.
Digital Ratio Control
- An onboard HMI (human machine interface) makes it easy to change ratios and monitor system performance.
Flexible Integration
- Discrete or serial communication ports connect to factory PLC (programmable logic controller) for efficient process control (including pressure relief) and data reporting.
Electric Variable Ratio (EVR) Systems
The configuration of your electric variable ratio system depends on your material and production requirements. Contact us about an application and process review to identify solutions that meet those needs.
Choose Elite construction for applications of highly abrasive thermal interface materials (TIMs), silicones, urethanes, and epoxies. When your system configuration includes pumps and valves with Elite construction, you can expect to…
- dispense at least 50,000 gallons (200,000 liters) before noticing any wear on pump pistons and cylinders*
- get at least 10 times more equipment life, compared to standard systems*
How do we know? Read the research.
* Results may vary. Variables affecting component life include, but are not limited to, material chemistry/fillers, flow rate, cycle rate, maintenance diligence, and system pressure.
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