Locke Supply Adopts Voice Picking to Boost Warehouse Efficiency

Locke Supply Chain addressed issues such as low order fulfillment accuracy, long employee training cycles, and high staff turnover by implementing the Vocollect voice picking system. Integrated with the existing WMS, the system guides picking operations through voice commands, significantly improving picking efficiency and order accuracy. This resulted in reduced operating costs and improved employee work experience. This case provides valuable insights for companies facing similar challenges in warehouse logistics and order fulfillment.
Locke Supply Adopts Voice Picking to Boost Warehouse Efficiency

In today's rapidly evolving market landscape, the ability to accurately identify demand and enhance operational efficiency has become crucial for business success. Companies struggling with low order fulfillment accuracy, lengthy employee training cycles, and high turnover rates may find inspiration in the transformation story of Locke Supply.

Introduction: The Dual Challenges of Growth and Efficiency

Locke Supply, a leading distributor of plumbing, electrical, and HVAC products headquartered in Oklahoma, experienced significant business growth following the recovery of the real estate market. However, this expansion brought new operational challenges—particularly in efficiently distributing products from its Oklahoma City central distribution center to over 160 stores across five states.

These stores serve both contractors (plumbers, electricians) and retail customers, requiring the handling of diverse orders ranging from small components to large equipment. Unlike manufacturers shipping palletized goods to big-box retailers, Locke Supply's core challenge lay in achieving precision in pick-to-pack operations to maintain optimal inventory levels across all locations.

Diagnosing the Problem: Limitations of Traditional Picking Methods

By late 2012, the combination of growing order volumes and picking inefficiencies created significant bottlenecks. Chief Information Officer Larry Zeller identified three critical issues:

  • Low picking accuracy: Traditional RF terminal methods yielded only 95% order accuracy.
  • Extended training periods: New employees required substantial time to master RF terminal operation.
  • High employee turnover: Cumbersome processes and demanding workloads led to reliance on temporary staff, exacerbating training needs and error rates.

These interconnected problems formed a vicious cycle that constrained operational performance and customer satisfaction, signaling the need for an innovative solution.

The Solution: Implementing Voice Picking Technology

Locke Supply adopted Vocollect's voice-directed picking system, which integrated with their existing warehouse management system (WMS). The implementation process included:

  • Technology selection: Discovered at an industry conference, the hands-free voice solution promised reduced errors and faster training.
  • System integration: Despite being the first integration with their TWL WMS, deployment was completed within four months.
  • Training transformation: Voice system training was reduced from three days to just three hours due to intuitive voice commands.

Operational Benefits and Performance Improvements

The voice picking system delivered measurable improvements across multiple metrics:

  • Productivity: Picking rates nearly doubled from 110 to 200 items per hour.
  • Accuracy: Order accuracy improved from 95% to over 99%.
  • Employee retention: Temporary worker ratios dropped significantly as job satisfaction improved.

Additional advantages included extended battery life for wearable devices and better visibility into replenishment issues through improved accuracy data.

Key Takeaways for Supply Chain Transformation

Locke Supply's experience offers valuable insights for businesses considering warehouse automation:

  • Select technologies that align with specific operational needs
  • Ensure seamless integration with existing systems
  • Invest in proper employee training and change management
  • Continuously monitor performance for ongoing optimization

The Future of Intelligent Warehouse Operations

As artificial intelligence and IoT technologies advance, warehouse operations will continue evolving toward greater automation and data-driven decision making. Emerging solutions like robotic picking and drone inventory systems promise to further enhance efficiency and accuracy.

Locke Supply's successful transformation demonstrates how targeted technology adoption can solve pressing operational challenges while positioning companies for future growth in an increasingly competitive marketplace.