GRACO Electric Fixed Ratio (EFR) Metering System

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The Graco Electric Fixed Ratio (EFR) is an electrically driven meter, mix and dispense system for two-component sealant and adhesive delivery. The EFR is ideal for applications requiring precision dispensing as it offers advanced material control of gaskets, beads, shots and potting compound.

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Electric Fixed Ratio (EFR) Metering System

Graco Advanced Two-Component System ELECTRIC FIXED RATIO METERING SYSTEM
Electric Fixed Ratio (EFR) Brochure

Design Benefits

  • Highly accurate, consistent ratio, even low flow rates
  • Capable of shots, beads and continuous flow dispense
  • With built-in encoder, ensuring superior repeatability
  • Wide range of material options to suit various applications
  • Easy to configure, operate and maintain

Material Types

  • Epoxies
  • Silicones
  • Acrylic
  • Polysulfide
  • Urethanes
  • Thermal Interface Materials
Material With the EFR system you have the freedom to use the material that fits your application best. The unit can be configured with multiple versions of Z-pumps so that the unit can handle a wide range of materials, including difficult to ratio and very abrasive ones.

Markets

  • Battery
  • Automotive
  • Solar
  • General Industry

Applications

  • Bonding
  • Sealing
  • Potting
  • Gasketing

Components & Features of Graco Electric Fixed Ratio (EFR) Metering System

Graco Electric Fixed Ratio Metering Systems
  1. Advance Precision Driver
    • Powerful driver reaches up to 20 cycles per minute
    • Precise encoder that assures low flows and small shots consistently
    • Direct pump control
    • Limited maintenance needs
  2. Industry-proven Z Pumps
    • Multiple Ratio options
    • Only the seals are wear parts
    • Abrasive-resistant version
    • Mechanically linked pumps offer ratio assurance
  3. MD2 Valve
    • Adjustable snuff back
    • Mixing at the tip of the gun, limiting purge material waste
    • Multiple seal combinations for material compatibility
    • Available in 1:1 to 10:1 for wide ratio applications
    • For manual or robotic applications
  4. Advanced Display Module
    • Easy-to-use interface
    • Possibility of having it completely integrated
    • Communication Gateway Modules: EtherNet/IP, DeviceNet, Profibus, Profitnet

Technical Specifications of GRACO Electric Fixed Ratio (EFR) Metering System

Drive Precision Controlled ServoDrive Motor
Material delivery Shot or Bead
Flow rate 1 to 3200 cc/min
Supply type Bulk supply from 20 L pails to 200 L drums and larger totes.
Shot range 0.1 grams
Mix ratio range 1:1 to 12:1
Max fluid working pressure 3500 psi (24 MPa, 241 bar)
Max fluid temperature 120° F (50° C)
Electrical power 240V or 480V
Wetted parts Stainless steel, zinc-plated carbon steel, brass, tungsten carbide, chrome, fluoroelastomer, PTFE, ultra-high molecular weight polyethylene, silicon nitride
Combined Displacement (A Pump + B Pump) Max Output Flow (20 cycles/min max) Max Average Outlet Pressure
60 cc 1200 cc/min 3500 psi (241 bar)
80 cc 1600 cc/min 3500 psi (241 bar)
100 cc 2000 cc/min 3500 psi (241 bar)
120 cc 2400 cc/min 3500 psi (241 bar)
140 cc 2800 cc/min 3500 psi (241 bar)
160 cc 3200 cc/min 3000 psi (207 bar)

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