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Kathir Sudhir Automation India Pvt Ltd

Electronics Instruments Manufacturer & System Integrator for Automation Solutions

How a Timer-Based Control System Transformed Tray Handling in Cold Storage

In the world of cold storage and refrigeration, precision and timing play a crucial role in maintaining product quality. A few extra seconds in uneven cooling can damage sensitive goods — and a few minutes of labor saved can boost productivity drastically.

This is the story of how a simple timer-based control system completely transformed the way tray handling was done inside a cold storage facility, making it fully automatic, reliable, and maintenance-friendly.

The Problem: Manual Tray Movement Slowing Everything Down

A large cold storage unit dealing with seafood and perishable goods had a repeated issue: the trays used for storing materials needed to move up and down inside the cooling chamber to ensure even distribution of temperature.

Initially, this was managed manually — operators would use UP/DOWN buttons and watch the tray until it reached the right position. This led to:

  • Human errors and inconsistent timing
  • Operator fatigue due to repeated monitoring
  • Uneven cooling across batches
  • Unnecessary energy usage when trays stayed too long in one position

They needed an automated solution that could make tray movement cycle automatically, with minimal operator involvement.

The Solution: Timer-Based Tray Control System

After understanding their pain points, our team proposed a customized timer-based control panel.

Key Features:

  • Pre-set timing for UP and DOWN movement
  • Fully automatic cycle — no manual intervention needed
  • Digital timer module with adjustable T1 and T2 durations
  • Relay-based actuator control to manage the tray lift motor
  • Limit sensors for top and bottom tray positions for added safety
  • Emergency stop and manual override for maintenance and control

Once installed, the system simply starts the cycle, moves the tray up, holds for the set time, lowers the tray, and repeats — 24/7.

Real Impact: Results After Implementation

The transformation was immediate and measurable.

1. Zero Human Monitoring
Operators no longer needed to stand beside the panel and control the movement. The system ran the full cycle automatically.

2. Uniform Cooling
Every tray now received equal time in the cooling zone. This improved the quality and consistency of stored items.

3. Energy Efficiency
By avoiding unnecessary idle time, energy consumption reduced, directly impacting operational costs.

4. Increased Productivity
With automation in place, staff could focus on more critical tasks rather than monitoring trays.

Scalable Use: Beyond Cold Storage

Though developed for cold storage tray handling, this timer-based control concept is ideal for many industries:

  • Drying ovens with rotary shelves
  • Automated material handling systems
  • Batch chemical processing
  • Lab testing equipment with repeated motion needs

The best part? It doesn’t require expensive PLCs or complex programming. It’s cost-effective, service-friendly, and highly customizable.

Conclusion: Automation Isn’t Always Complicated

This success story shows that industrial automation doesn’t always need to be complex or costly. A well-designed timer controller can solve long-standing operational issues and deliver measurable benefits.

If you’re facing repetitive operations in your system that rely too much on manpower or guesswork — a customized timer-based solution might be exactly what you need.