Robotic arms are no longer just for car plants. From food to chemicals, packaging to logistics, robotic cells now take on repetitive, heavy work in many industries. This guide explains what a robotic arm is, where it is used and how to plan the right investment.
What is a robotic arm and how does it work?
A robotic arm is a programmable industrial manipulator that moves on joints similar to those of a human arm. Industrial robotic arms usually have between four and seven axes; the gripper, vacuum or custom tool at the end is chosen for the task. The robot controller manages the motion and, together with PLCs and sensors, runs the flow of the cell.
Where are robotic arms used?
- Pick & place: picking from a conveyor and placing into a box, onto a pallet or into a machine.
- Palletising: stacking cases, bags and crates to a set pattern.
- Machine tending: loading and unloading CNC, press and injection-moulding machines.
- Packaging and end of line: boxing, labelling, shipping preparation.
- Vision-guided quality control: separating out and recording defective products.
What to check when choosing a robotic arm
The right robotic arm is chosen by weighing payload, reach, cycle time, repeatability and safety requirements together. If people share the workspace, a collaborative robot (cobot) is also considered; for high-speed, heavy-payload work, conventional industrial robots are the stronger choice.
The robotic cell: more than the arm
What creates value on the shop floor is not the robot alone but the robotic cell: arm, gripper, conveyor, sensors, safety fencing or area scanners, vision system and PLC. Connecting the cell to MES, ERP, quality and traceability systems means production orders arrive automatically and results are recorded.
With digital commissioning, PLC and robot programs are tested in a virtual cell before physical installation; errors are found before they reach the shop floor and commissioning takes less time.
When does a robotic arm pay for itself?
Payback depends on the number of stations automated, the shift pattern, operator cost, error rate and the investment in the cell. For multi-shift, repetitive work the payback period is shorter. To calculate it with your own numbers, use the robotics module of the ORELSIS ROI calculator.
Conclusion
Robotic automation succeeds with the right task, a well-designed cell and a connection to production software. Working on both robotics and software, ORELSIS makes the robotic arm part of a single flow from the shop floor to the decision.