Guide palletizing would possibly look easy. However behind each elevate is a set of forces, postures, and dangers that add up quick, particularly when executed lots of of occasions per shift.
That’s why the NIOSH Composite Lifting Index (CLI) exists. And in case you’ve by no means heard of it earlier than, it’s time to get acquainted—as a result of it could possibly be the important thing to defending your workforce and unlocking quicker ROI from automation.
Let’s break it down.
What’s the CLI?
The CLI is a device developed by the Nationwide Institute for Occupational Security and Well being (NIOSH). It measures the ergonomic danger of guide lifting duties within the office—particularly when a employee is lifting a number of objects, in numerous positions, at completely different frequencies.
Briefly, it solutions this query:
Is that this elevate secure, or are you pushing your individuals too far?
The upper the CLI, the better the chance of harm.

What the numbers imply
Right here’s the straightforward rule of thumb:
- CLI ≤ 1.0 → Acceptable for many staff
- CLI > 1.0 → Elevated danger
- CLI > 3.0 → Excessive-risk, pressing want for redesign or automation
Now think about this: One in all your operators is palletizing 12 lb containers, 700+ occasions per hour, with fixed bending and reaching. That’s precisely the kind of high-frequency, high-strain situation the place CLI spikes—and harm danger skyrockets.
Why must you care?
As a result of a CLI of three.0 or increased doesn’t simply imply somebody would possibly get damage. It means somebody possible will—and shortly.
Accidents attributable to overexertion and repetitive lifting are among the many commonest and expensive office points:
- $39,000+ common price per again harm
- Misplaced workdays, misplaced output, rising insurance coverage prices
- Turnover and recruitment challenges
In case your CLI is excessive, your margins are already underneath strain.
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Automation drops your CLI to zero
The best solution to cut back your CLI? Eradicate the guide elevate solely.
That’s the place cobot palletizing is available in. With a Robotiq system:
- You take away staff from the chance zone
- You get rid of ergonomic pressure on the supply
- You enhance consistency, security, and throughput
No lifting = no CLI = no harm danger.
And with Robotiq’s turnkey palletizing options, you possibly can go from guide to automated in as little as 3 days—with out facility redesign or weeks of downtime.
Backside Line: Your Lifting Danger Has a Quantity
The Composite Lifting Index offers you a transparent, data-backed solution to consider danger. However you don’t must turn into an ergonomics professional to behave on it. In case your crew remains to be palletizing by hand, the CLI is probably going already within the hazard zone.
So don’t look ahead to the harm report.
💻 Be part of our ergonomics webinar with licensed security professional Carla Silver – register at the moment!
📘 Want extra particulars and statistics? Obtain our Ergonomics book, additionally by Carla Silver.
