By Liang Wei, Senior Application Engineer, EVST — press automation and robot tending cells.
Last updated: 17 June 2026.
Answer first: Manual press loading keeps a hand in the die area — the crush-injury risk never goes away — and manual pick-and-place caps the cycle. A robotic press line removes both: the robot does pick-and-place so the operator steps outside the die area (risk designed out, not just guarded), and it handshakes with the press signal so several presses link into a continuous line. Spec it by part size/weight (payload + gripper), press count (layout + handshake) and safety level (light curtains + fencing + e-stop).
Two problems, one fix
Stamping shops live with two linked problems:
- Safety. Loading and unloading a press by hand means a hand near or in the die. Guarding reduces the risk; it doesn’t remove the reason the hand is there.
- Cycle. Manual pick-and-place sets the pace, and it can’t keep up with a fast press or link multiple presses smoothly.
A robot tending the press fixes both at once: it takes the hand out of the die area and sets a steady, fast pick-and-place rhythm.
Safety: designed out, not just guarded
The strongest safety control is to remove the hazard, not fence it. With a robot doing the loading, the operator is outside the die area entirely — the crush risk is designed out at the source. Layered on top: light curtains, perimeter fencing and e-stop, per the cell risk assessment. That’s the hierarchy of controls applied properly: elimination first, safeguards second.
Cycle: handshake and linked presses
- Press-signal handshake. The robot coordinates with the press controller — it loads, clears, the press strokes, and the robot unloads, in a tight repeatable loop with no waiting on a person.
- Linked line. Several presses are connected by robot transfer, so a part flows press to press — a progressive line instead of isolated stations.
- Quick-change grippers. Different parts run on the same line; gripper change handles the mix so changeover doesn’t stop the whole line.
Configuration at a glance
| Question | What it sets |
|---|---|
| Part size and weight? | Robot payload and gripper |
| How many presses to link? | Layout and signal handshake |
| Required safety level? | Light curtain + fencing + e-stop scheme |
| Multiple parts on one line? | Quick-change gripper / tooling |
| Press speed / stroke rate? | Robot reach and cycle balance |
Handshake coordination and quick-change tooling are EVST cell capabilities; exact cycle and payload figures should be confirmed against your presses and parts.
When robotic press tending pays off
- Manual loading near a die — the safety case alone often justifies it.
- Fast presses the operator can’t keep pace with.
- Multiple presses that should run as one progressive line.
- Mixed parts needing non-stop changeover.
Where it fits: cross-industry
Appliance sheet metal, automotive stampings, hardware, and 3C structural parts — anywhere presses are loaded by hand today. The part changes; safety-out-of-the-die plus handshake-coordinated cycle does not.
Standards and references that frame the design
- ISO 12100 — safety of machinery: risk assessment and the hierarchy of controls (elimination before guarding).
- ISO 16092 series — safety of presses (the press side of the cell).
- ISO 10218-2 — safety of the integrated robot cell.
- ISO 9283 — manipulating industrial robots: performance test methods.
Pre-deployment checklist
- Define part size, weight and the press stroke rate.
- Size robot payload and gripper; decide quick-change for the part mix.
- Lay out the linked presses and the press-signal handshake.
- Design the safety scheme: elimination (robot loads) + light curtains + fencing + e-stop.
- Run the cell and press risk assessment (ISO 12100 / ISO 16092 / ISO 10218-2).
Frequently asked questions
How does a robot make press loading safer? It removes the hand from the die area entirely — the operator works outside the cell — so the crush hazard is eliminated at the source, then light curtains and fencing add protection.
How does it speed up the line? The robot handshakes with the press and keeps a steady pick-and-place rhythm, and multiple presses link into one progressive line with no waiting on a person.
Can one line run different parts? Yes — quick-change grippers/tooling handle the mix so changeover doesn’t stop the whole line.
What safety standards apply? ISO 12100 (risk assessment / hierarchy of controls), ISO 16092 (press safety) and ISO 10218-2 (robot cell safety).
What sets the robot size? Part size and weight set payload and gripper; press speed and reach set the cycle balance.
Key takeaways
- Robotic press tending fixes safety and cycle together.
- Safety is designed out (operator out of the die), then guarded — the proper hierarchy of controls.
- Cycle comes from press handshake + linked presses + quick-change.
- Spec by part size/weight, press count, and safety level.
Talk to EVST about your press line
Send us part size/weight, press details and the line layout — we’ll spec the robot, gripper, handshake and safety scheme, and quote the cell or the linked line.
→ Contact us to automate a press line.
Or reach us directly: sales@evsrobot.com · Tel / WhatsApp / WeChat: +86 19381626253
Related reading: CNC machine tending (one operator, many machines), multi-station handling, and robot cell safety design.