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Have you invested in new automation equipment or workforce development and still struggled to reach your production goals? Missed production targets and delivery dates aren’t always an equipment or personnel problem.

They may be a material flow problem.

Effective material flow in manufacturing means getting materials, inventory, information and resources where they’re needed, when they’re needed. When that flow breaks down, production lines can experience delays that reduce throughput, waste skilled labor and affect customer service.

Here are five signs your production logistics strategy could be limiting operational performance.

Evaluating equipment, workflows and material movement on the plant floor can help identify constraints that limit manufacturing throughput.

PRODUCTION LOGISTICS ASSESSMENT

What Could Be Slowing Production Down?

Material shortages, growing work-in-process inventory, unnecessary movement and disconnected production information can all limit throughput. Answer 12 questions to identify which area of your production logistics strategy may deserve a closer look.

  • 12 questions
  • Approximately 3 minutes
  • Immediate results

This self-assessment provides directional guidance based on your responses. It does not replace an onsite operational, engineering or safety assessment.

1. Production Spends Too Much Time Looking and Waiting for Materials

Valuable production time is lost when operators have to leave their workstations to search for parts or production stops while waiting for materials to arrive.

You might have a production logistics problem if you recognize these signs:

  • Employees searching for materials before starting work
  • Frequent calls to the warehouse or storeroom
  • Last-minute requests for inventory
  • Production interruptions caused by missing components
  • Frequent material expediting

The key is figuring out why material isn’t available where and when it’s needed. Poor material flow doesn’t always mean you need more inventory. If material is available but nobody knows where it is, you may have a visibility or location problem. If its location is known but it hasn't reached the workstation in time, replenishment or staging may be the issue.

Next Step: Before adding labor or stocking more material, track material-related downtime. Note how often operators leave their stations or production waits for material, then identify why. Was the material truly unavailable, in the wrong location or simply delivered too late? Those patterns can reveal whether the bigger opportunity is inventory visibility, material replenishment or the process itself.

Better production visibility can also help manufacturers identify where flow and performance are breaking down.

 

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2. Work-in-Process Inventory Builds Up Between Production Steps

Many manufacturers assume more inventory means production is staying busy.

But excess work-in-process (WIP) inventory can be a sign that materials aren’t flowing efficiently from one production step to the next.

Excessive WIP inventory can be a sign of:

  • Bottlenecks between processes
  • Unbalanced production schedules
  • Poor material flow
  • Visibility challenges

Instead of looking only at how much WIP you have, pay attention to where it accumulates and how long it stays there. If inventory consistently builds in front of the same machine or work cell, the problem may be capacity, scheduling, material handling or an imbalance between processes. 

Next Step: Map where WIP accumulates and measure how long material waits between production steps. The locations with the longest queues can help reveal the constraints having the biggest impact on throughput. 

3. Forklift Traffic Seems Constant

Forklifts are critical to many operations, but constant forklift traffic may signal inefficient material flow and can create bottlenecks, delays and additional safety risks.

You might have a material handling problem if you recognize these signs:

  • Congested aisles
  • Delays waiting for deliveries to the line
  • Operators spending significant time transporting materials
  • Growing safety concerns in high-traffic areas

Next Step: Track a few common forklift routes from pickup to delivery. Look for unnecessary trips, long travel distances and repeated emergency moves. Those patterns can help identify opportunities to simplify material flow or automate repetitive transportation tasks. 

4. Material Flow Problems Keep Disrupting the Production Schedule

If your production schedule changes daily or even hourly, the root cause may be material flow rather than the scheduling system itself.

Signs of a production scheduling issue include:

  • Constant schedule adjustments
  • Frequent expediting
  • Shifting production priorities
  • Missed deadlines

When planners can't trust inventory levels, material arrival times or current production status, they're forced to build schedules around incomplete information.  

Next Step: Review your recent schedule changes and categorize what triggered them. If material availability, delayed replenishment or inaccurate production information repeatedly appear as causes, improving those processes may make the schedule more reliable without changing your scheduling system. 

5. Skilled Workers Spend Time Moving Materials Instead of Creating Value

Every labor hour is more valuable for manufacturers than ever with nearly one million production openings per year expected over the next decade.

Yet many organizations still rely on skilled workers to perform tasks like moving materials and communicating production status.

Watch for activities like these:

  • Operators leaving stations to retrieve material

  • Skilled employees making routine material deliveries 

  • Manual status updates between production areas 

  • Frequent interruptions to coordinate replenishment 

The question isn't whether these tasks are necessary. It's whether skilled employees need to be the ones doing them. Every trip away from a workstation takes time from work that requires their experience and expertise. Repetitive material handling can also add unnecessary lifting, walking and physical strain.

Next Step: Observe a shift and estimate how much skilled labor time goes toward material movement and coordination. Separating value-added production work from supporting activities can reveal opportunities to redesign workflows or automate repetitive tasks.

How Better Material Flow Can Improve Manufacturing Throughput

When manufacturers look to improve manufacturing throughput, the first instinct is often to add capacity, purchase new equipment or hire additional labor. But the constraint may have less to do with production equipment and more to do with how materials move through the facility.

Material shortages, inefficient workflows, excessive material handling and disconnected systems can all create hidden barriers to performance. The challenge is being able to see where those barriers exist.

Can your team quickly answer where inventory is located, what materials are running low, which processes are causing delays and what orders are at risk? If answering those questions requires phone calls, spreadsheets or walking the floor, you may be reacting to problems after they’ve already affected production.

Better visibility helps your team understand where materials are, where they're going and where they're getting stuck. That insight can help identify material flow constraints before they limit throughput.

Ready to Improve Material Flow in Your Manufacturing Operation?

The first step toward improving throughput is identifying what’s slowing material flow down. A plant-floor assessment can help uncover where materials, information and processes are creating delays and where improvements may have the greatest impact.