Controlling the Uncontrollable: How FANUC has Transformed the Rules of Robotic Adhesive Dispense
Across manufacturing sectors, adhesives have evolved from a supporting material into a core element of product design and assembly. Adhesives enable lighter structures, stronger bonds, and the use of new materials while playing a central role in structural strength, weight reduction, corrosion resistance, and the joining of dissimilar materials. These are capabilities that traditional joining methods, welds and fasteners can’t always match. As adhesive usage grows, so does the need for accurate, repeatable robotic dispensing, especially as structural bonding becomes mission‑critical in applications ranging from automotive body construction to appliance assembly and industrial equipment.
With this shift, comes a challenge manufacturers across industries know all too well: dispensing adhesives consistently is incredibly difficult. Adhesives themselves refuse to behave predictably regardless of robot accuracy and and team member competency.
The Hidden Instability No One Can Ignore
Adhesives are dynamic materials. Viscosity, density, and compressibility shift constantly due to batch‑to‑batch variation, ambient temperature, material age and shear sensitivity. These changes directly affect flow through a dispense system.
Traditional robotic dispense architectures amplify this instability. A remote meter pushes material through long hoses to a dispense valve, creating an unpredictable shock absorber effect. The adhesive inside the hose acts like a spring and damper, delaying and distorting the system’s response. This results in variation between the commanded and dispensed volume over a given area. In other words, the system commands one thing, but the material delivers something else.
The result is a process that can’t be reasonably modeled, predicted or tuned with confidence. On the factory floor, this translates into a familiar cycle: touch up the robot path, tweak the parameters, adjust again, then repeat. Maintenance teams can inadvertently become full‑time babysitters for a process that should be stable.
A Problem Bigger Than Automotive
Automotive body shops may be the most visible example of this challenge, but they are not alone. Any industry relying on structural adhesives or high‑viscosity sealants feels the same pain:
- EV battery manufacturing, where bead consistency affects thermal performance
- Appliance assembly, where seal integrity impacts energy efficiency
- Window and door fabrication, where weatherproofing depends on uniform application
- General industrial assembly, where multi‑material bonding is becoming the norm
Wherever adhesives are used at scale, the same physics—and the same frustrations—apply.
For years manufacturers had two choices:
- Demand more consistent adhesive formulations, increasing cost without solving the problem
- Accept the instability and compensate with engineering effort
FANUC now offers a a third option— a dispense system that is inherently tolerant of material variation.
This is the philosophy behind FANUC Integrated Dispense (FID).
Reimagining the System, Not Just the Symptoms
FANUC approached the problem from both sides: controls and hardware. FANUC’s existing expertise in high‑accuracy servo control and deterministic motion was a helpful starting point, but control alone can’t overcome the physics of long hoses and remote meters.
FANUC partnered with Graco to rethink how metering can be integrated to solve the bigger issue. The metering solution? Graco’s compact, positive‑displacement, continuous‑flow metering pump, which is industrialized for body shop use but small enough to mount at the robot wrist.
This single change eliminates the shock absorber effect by minimizing the distance between the meter and the dispense point.
But the real breakthrough is integration.
The pump is servo‑driven directly by the FANUC robot controller. No third‑party controller, no communication lag and no layered control loops optimizing system responsiveness.
The robot doesn’t just move with precision—it dispenses with precision.
What This Means on the Factory Floor
The impact is immediate and measurable. Before‑and‑after studies show bead volume variation collapsing from wide swings to tight, stable control across thousands of cycles.
Positive feedback continues to roll in from operators, maintenance teams, and quality teams.
When service is needed, the metering pump is replaced as a drop‑in cartridge that is removed with five bolts and replaced in less than five minutes, making downtime a non‑event.
Making Advanced Dispense Accessible: The Mobile Dispense Cart
To help manufacturers adopt the technology quickly, FANUC and Graco also developed a Mobile Dispense Cart flexible platform that brings FANUC Integrated Dispense capability to R&D labs, pilot lines, and production systems without requiring extensive integration.
It’s a practical way to evaluate adhesive behavior, test bead strategies, and validate processes while scaling up.
A New Standard for Adhesive Dispense
Traditional dispense systems fight physics, but FANUC Integrated Dispense removes the physics problem from the equation.
By combining purpose‑built metering hardware with FANUC’s world‑class servo control, FID delivers what manufacturers have been chasing for years: stable, predictable, repeatable adhesive application—even when the material itself is anything but predictable.
Offering better quality, higher uptime and lower cost of ownership, FID delivers significant adhesive dispensing benefits, all in a platform that can be customized for unique manufacturing needs or purchased off the shelf on a convenient mobile cart.
For industries where adhesive performance is becoming central to product design, FANUC’s Integrated Dispense system isn’t just an improvement—it’s a turning point.
