Pneumatic grippers are the most common end-effector in factory automation. They are fast, reliable, and cost-effective for a wide range of pick-and-place, assembly, and machine-tending tasks.

But integrating a pneumatic gripper with a cobot introduces several programming challenges that go beyond what most "easy programming" marketing describes.

How Pneumatic Grippers Work

A pneumatic gripper uses compressed air to actuate finger movement. In most factory installations:

Open/close control: A solenoid valve receives a digital signal from the robot controller
Feedback: A sensor (magnetic or optical) confirms the gripper has reached the open or closed position
Timing: The robot program must wait for feedback confirmation before moving to the next step

In practice, this means every gripper action requires:

Send open/close signal to the valve
Wait for position feedback (typically 100–500ms)
Confirm feedback is received
Continue the program

Common Pneumatic Gripper Types in Cobot Cells

Type	Best For	Limitations
Parallel jaw (2-finger)	Flat parts, blocks, cylinders	Requires consistent part orientation
Angular jaw	Round parts, pipes	Limited part shape flexibility
3-finger centring	Cylindrical parts	Slower cycle time
Needle gripper	Foam, fabrics, soft materials	Fragile; air consumption is high

Programming a Pneumatic Gripper: Traditional vs. No-Code

Traditional Approach

With a teach pendant or URScript, programming a pneumatic gripper involves:

Configuring I/O pins for open/close signals
Writing signal commands in the robot program
Adding wait-for-input logic for feedback signals
Setting timeout conditions for missed feedback
Testing timing under real operating conditions

For experienced integrators, this takes several hours. For factory workers without programming knowledge, it is not accessible at all.

With Aurevix

Aurevix treats pneumatic grippers as a first-class supported component. When you configure your gripper type and I/O mapping:

Open/close signals are inserted automatically at the correct points in the generated program
Signal wait logic is included by default
Timing is calibrated based on the gripper model and operating pressure
The team reviews gripper actions in the 3D simulation before deployment

Signal Timing and Validation

One of the most common sources of cobot cell failures is incorrect gripper signal timing. Symptoms include:

Drop events: Robot starts moving before gripper has fully closed on the part
Jam events: Gripper signal sent before robot reaches the grasp position
False confirms: Feedback sensor triggers prematurely due to vibration or EMI

Good practice for validation:

Run the task in simulation with realistic signal timing
Run the physical task at reduced speed (20–30%) on first deployment
Confirm feedback signals are arriving within expected windows
Log any timeout events for the first 50 cycles
Escalate any persistent timing issues before increasing cycle speed

Aurevix Support for Pneumatic Grippers

Aurevix supports pneumatic parallel and 3-finger grippers as part of the standard workflow. Supported robot brands (Universal Robots, ABB, FANUC, KUKA, Techman, and Yaskawa) include gripper I/O in the exported controller program.

For gripper types not yet in the standard library, the Aurevix team works with design partners to add support during the onboarding process.

Automate your first robot task — in hours, not weeks

Aurevix teaches supported cobots from video demonstrations by extracting task intent, simulating the plan, and deploying robot-specific programs. No engineers. No code. Talk to us about your specific task.

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