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Tower Stack Lights

Tower stack lights / Signal Towers provide high-visibility visual and audible signaling for clear machine status indication, safety alerts, and efficient industrial communication. Multiple color configurations, flash patterns, and buzzer functions to match specific operational needs. Energy-efficient LED technology delivers superior brightness, long lifespan, and reliable performance in demanding environments. Pre-wired and pre-assembled designs reduce installation time, while a wide range of sizes, mounting options, and technologies make these signal towers ideal for virtually any industrial application.

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Tower Stack Light Features

Tower stack light allows to see machine status faster, reduce response time, and keep production moving. Maple Systems tower stack lights offer flexible signaling options for different machines, work areas, and plant environments.

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Tower stack light with IP protection for dust, splash, washdown, or outdoor use (IP54-IP65)

Environment Protection

Choose the right ingress protection rating (IP54-IP65). Standard industrial environments may only need basic dust and splash protection, while washdown, outdoor, or high-moisture areas require a higher-rated enclosure.

Tower stack light with adjustable volume and a buzzer (85dB)

Audible Alarm

Add a buzzer (85dB), with adjustable volume, when visual signals may not be enough. Audible alarms help alert operators to faults, stoppages, or urgent conditions, especially in busy or noisy production areas.

Tower stack light with multiple long service life LEDs

Long-Life LED Modules

Use LED modules for long service life (50,000+ hours), low power use, and better vibration resistance. LEDs are a better fit for modern industrial equipment than older incandescent bulbs that burn out faster and are more fragile.

Tower stack light with several mounting options like direct, wall or side, and pole

Flexible Mounting

Mount the light where operators can see it best. There are several options: use direct mounting for local machine status, wall or side mounting for panels and Andon displays, or pole mounting when the signal needs to be elevated.

Tower stack light with clear 360° indication and adjustable pole mounting (4″ to 40″)

360° Visibility

Make machine status easy to see from across the floor. Bright LED modules provide clear 360° indication, while pole mounting options help raise (4″ to 40″) the signal above equipment, guards, or other line-of-sight barriers.

Tower stack light with different colors, light patterns, and alarm options

Modular Stack Design

Build the signal stack around your specific application needs. Modular industrial tower lights allow to combine different colors, light patterns, and alarm options so each status condition is clear and easy to understand.

Step-by-Step Checklist: How to select the right Tower Stack Light

Stack lights (or signal towers) are modular systems that provide illuminated and audible status indications that can be seen and heard from a distance in all directions. Signal towers with a modular design and “no tools assembly” means installation in minutes and adjustments in seconds.

  • Define your status levels. Which conditions do you need to show? (For example: normal run, standby, warning, alarm, operator call, quality check.) This will define how many layers you need.
  • Choose your color code. Assign each condition to one color according to your factory standards. Keep it as consistent as possible across all machines.
  • Select the number of layers. Based on the first two steps, decide if you need 1, 2, 3, 4 or 5 segments.
  • Decide on sound. Do you need a Stack Light With Buzzer, a separate warning horn, or silent operation? Check noise levels on site before deciding.
  • Pick a mounting style. Surface, wall, foldable base or tube height – think about where the tower must be visible from and how the cable will enter.
  • Review environmental conditions. Consider dust, humidity, chemical vapors and cleaning methods. Select models with suitable protection class for your environment.
  • Plan wiring and control. Make sure your PLC or panel has enough outputs for each color and buzzer, and that the Stack Light Wiring Diagram fits into your existing electrical design.
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Frequently Asked Questions

What is the standard Tower Stack Light?

A typical tower light has three to five colored segments. Each color should represent a distinct machine status (e.g., Red = Fault, Amber = Warning, Green = Running, Blue = Maintenance, White = Custom).

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Should the stack light be steady or flashing?

These lights have functionality for both. Generally a Steady light is used for normal operation (e.g., steady green). While a Flashing light is used to denote a higher urgency or specific state, such as a machine warning or emergency situation.

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Are the tower lights LED or incandescent?

LED, LEDs provide higher brightness, lower power consumption, and a significantly longer lifespan than incandescent bulbs. They also perform better in high shock and vibration environments, making LED stack lights ideal for demanding manufacturing, automation, and machine status indication applications.

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Tower Stack Light with a buzzer: When Is Sound Necessary?

In loud production environments, a visual signal alone may not be enough. Operators may be away from the line, looking in another direction, or wearing hearing protection. In such cases, a Tower Stack Light With Buzzer can dramatically improve reaction times.

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What mounting options are available for the stack lights?

We have a variety of mounting options. They can be directly mounted to a control cabinet or chose a variety of bases that various length poles can be attached.

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Not sure what fits your industrial application?

Contact our team and we will help you choose the right option.

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Status Signaling for Every Industry

From manufacturing lines to packaging equipment and material handling systems, clear machine status matters everywhere. Maple Systems tower stack lights help teams see machine conditions at a glance, respond faster to issues, and keep operations moving. Designed for demanding industrial environments, they offer bright LED visibility, configurable light patterns, optional buzzers, and rugged construction for reliable performance across manufacturing, packaging, material handling, and more.

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