A Look at Ergonomics in the Distribution Center
Think for a moment about your personal definition of productivity. Words like “effectiveness” and “output” and “production” likely come to mind.
But what we often forget in material handling is that productivity doesn’t have to mean harder work. In fact, in manufacturing operations and distribution facilities, higher productivity often means less demanding physical work, employee touches, and interactions between product and personnel.
What do we mean by this?
The answer lies in ergonomics, the science of designing the job to fit the worker instead of physically forcing the worker’s body to fit the job. According to the Occupational Health & Safety Administration, ergonomics helps lessen muscle fatigue, increases productivity, and reduces the number and severity of work-related musculoskeletal disorders (MSDs).
Let’s take a look at the relationship between ergonomics and productivity in the distribution center:
Decreased Risk of Injury
In the distribution center, workplace injuries aren’t just detrimental to employee health and safety; they can also have a significant impact on productivity. With workers sidelined and unable to work, companies face serious productivity losses – not to mention costly worker compensation insurance premiums.
In addition to serious injuries such as falls, slips, and trips, warehouse workers run the risk of developing MSDs, including muscle strains, lower back injuries, carpal tunnel syndrome, tendinitis, and more. U.S. Bureau of Labor Statistics data, in fact, shows MSDs are twice as common in the warehousing and distribution sector as they are in other private-sector industries.
Enter workplace ergonomics.
Ergonomics is not a feel good factor, but instead the linchpin in designing work processes and workplace. Ergonomics not only contributes to the well-being and relief of the staff, but also brings measurable and distinct advances in productivity.
Here are a handful of actionable tips for distribution centers to drive productivity gains with ergonomics:
• Review worker tasks for risk factors (awkward/static postures, repetitive/quick motions, excessive force, compression or contact stress, etc.)
• Control risk factors with ergonomic solutions (adjustable height workstations, anti-fatigue mats, lifts or hoists to reduce awkward positions, etc.)
• Understand how to make the workplace work ergonomically (issues frequently encountered include work surfaces that are the wrong size or at the wrong height, uncomfortable chairs, shelves and bins that are too high or out of reach, and awkward hand tools)
• Continually monitor workflow and make ergonomic improvements as necessary
Reduced Travel Time
Aside from making ergonomic adjustments to workstations while workers are standing in place, it’s also critical to factor in how much a worker needs to move around the warehouse in order to perform industrial tasks.
Let’s take order picking, for example.
In a distribution or warehousing operation, the most common working concept is “person-to-goods” order picking, which means that order pickers move to storage locations, often pushing or pulling carts and reading orders off paper. These pickers spend significant amounts of time (up to 60%) walking between storage, so reducing that time-spend is an excellent idea.
Automated solutions (automated storage and retrieval, robotic picking systems, etc.) and manual systems (carton and gravity flow systems, pallet flow systems, etc.) can help to make accuracy and productivity improvements in these cases.
But a good ergonomics program will also help facilities design workstations so that everything is within reach of the operator (to the extent possible). Oftentimes, ergonomic solutions are the result of implementing the automated or manual systems listed above. Carton and gravity flow systems, for instance, install easily into existing pallet racks, helping to create ergonomic workstations ideal for picking, assembly, or line side storage.
Improved Space Utilization
Ergonomics may not have been a prime plant design consideration in the past, but today’s consumer-driven marketplace demands that distribution facilities operate as efficiently and productively as possible.
Proper space utilization is of particular importance during the holiday season, the busiest time of year for retailers. As stated in a previous UNEX blog post, “distribution operations must be in high performance mode and ready to handle peak volumes.”
By understanding the way that shelves and space are being utilized, UNEX notes, facilities can determine how best to maximize warehouse efficiency: “The placement of shelves and containers, along with the traffic patterns and total design of the building, ultimately affects the ability for [facilities] to utilize any space available.”
Beyond product storage, an in-depth look at space utilization can also help warehouses design the workstation most efficiently for workers. The idea is to minimize reach, reduce twisting, and avoid long periods of standing in one position so that workers won’t need to take steps to reach product or materials.
In the distribution center, ergonomics isn’t just a good idea for worker health and longevity: It’s also critical to driving productivity in the warehouse. As noted above, a good ergonomics program can decrease risk of injury, reduce travel time for workers, and optimize space – driving significant improvements to the bottom line and a more efficient operation overall.
How does your company view the relationship between ergonomics & productivity?
Scott Stone is the Director of Marketing for Cisco-Eagle, Inc., a provider of integrated material handling and storage systems for industrial operations. Scott has 25 years of experience in industrial operations and marketing.