GRACO Electric Fixed Ratio (EFR) Metering System

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.

Features & Benefits

Know more about the features & benefits of using Graco Electric Fixed Ratio (EFR) Metering System.

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

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.

Epoxies
Silicones
Acrylic
Polysulfide
Urethanes
Thermal Interface Materials

Applications

Here is a list of industrial applications for which Graco Electric Fixed Ratio (EFR) Metering System are commonly utilized.

Bonding
Sealing
Potting
Gasketing

Markets:

Battery
Automotive
Solar
General Industry

COMPONENTS & FEATURES OF GRACO ELECTRIC FIXED RATIO (EFR) METERING SYSTEM

Electric Fixed Ratio (EFR) Brochure

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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

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
  


cc
cc/min
psi (241 bar)
  

cc
cc/min
psi (241 bar)
  

cc
cc/min
psi (241 bar)
  

cc
cc/min
psi (241 bar)
  

cc
cc/min
psi (241 bar)
  

cc
cc/min
psi (207 bar)
  

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)