The Most Reliable Nitrogen Generators in North America

As an industrial technology leader with ISO 9001:2015 quality management system certification, we've been transforming how industries access and utilize air and nitrogen systems since 2004.

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Over 5,000 Systems Delivered

Our Reach Across North America

At Liberty Systems, we don’t just sell nitrogen generators – we engineer reliability, innovate for efficiency, and partner for success.

As an industrial technology leader with ISO 9001:2015 quality management system certification, we’ve been transforming how industries access and utilize air and nitrogen systems since 2004.

We go beyond the technology to create tailored solutions that address unique challenges and application requirements.

Savings Generated from Our Systems
Bulk Supply

GN2

$48,844,176
Cost Per Hour / Laser
$6.80

LN2

$287,318,683
Cost Per Hour / Laser
$40.00
Total Savings Generated*
$238,474,507
See general assumptions

General Assumptions

Number of lasers
500
Start date
2021-01-01
Average cubic feet per hour
4,000
Cutting hours per day
10
Working days per year
250
GN2 cost per 100 ft3
$0.17
LN2 cost per 100 ft3
$1.00
No smoke, no mirrors. These are real savings stacking up every second.
Curious what your laser shop could save?

Our Capabilities

Liberty Systems in the Press

Dishaka Strengthens Operational Efficiency with Onsite Nitrogen Generation

Background

Dishaka is a family-owned snack manufacturer with roots dating to 1952 and a legacy of innovation that stretches from Kuwait City to Houston, Texas.

Since opening its U.S. operation in 2007 and moving to a 200,000-square-foot facility in 2016, Dishaka has become a trusted producer of extruded salty snacks, popcorn and pretzel products for retailers nationwide. At peak operation, its multiple production lines turn out more than 1,000 bags of chips per minute. 

The Challenge

In snack manufacturing, freshness and shelf life are everything. Nitrogen is central to both. Dishaka relies on Modified Atmosphere Packaging (MAP), which displaces oxygen inside sealed packages with nitrogen to keep products crisp, flavorful and protected in transit.

As production scaled across multiple lines, the company’s dependence on delivered nitrogen became a liability: recurring delivery and tank rental costs, volatile commodity pricing, hundreds of labor hours spent coordinating supply, and the constant risk of running low during peak production. Dishaka needed a nitrogen supply that was reliable, cost-predictable and fully within its control. 

The Solution and Business Outcomes

Liberty Systems designed and installed onsite pressure swing adsorption (PSA) nitrogen generation, sized to Dishaka’s compressed air system, production schedules and peak demand.

The first system was online within 72 hours in March 2022; a second system followed in May 2025, adding a backup air compressor, expanded plant air capacity and full redundancy to protect uptime. The results extended beyond cost savings: 

Reliable Supply

24/7/365 nitrogen availability, eliminating delivery coordination, emergency fees and the risk of running short during peak runs.

Lower, Predictable Costs

Removal of recurring delivery, tank rental and surcharge fees; roughly 200 annual labor hours recovered; and operating costs tied to electricity rather than volatile commodity pricing. ROI landed inside the projected 12-to-24-month payback window.

Greater Resilience

Built-in redundancy plus dual-purpose treated plant air support continued growth and reduce operational risk from supply chain disruptions.

A Smaller, Safer Footprint

Reduced facility footprint and improved workplace safety from eliminating bulk high-pressure storage, alongside lower carbon footprint by removing delivery traffic.

That self-sufficiency gives the company the operational independence to focus on producing great snack foods and the confidence to scale into its next chapter of growth.

Today, onsite nitrogen generation is simply part of Dishaka’s facility infrastructure. 

Customer Testimonial

"Liberty Systems’ nitrogen generator has transformed our operations. We've eliminated the headaches of gas contracts and dramatically reduced our costs. The reliability and support have been exceptional."

FAQ

Frequently Asked Questions

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What You Need

Popular Questions

What is Air Force?

Air Force® is Liberty Systems’ line of high-pressure, clean dry air generation systems designed to provide a continuous, reliable supply of compressed air for demanding industrial applications.

Air Force® systems remove moisture, oil, and particulate contamination from compressed air while boosting it to the pressure required by your equipment. The result is a dependable source of clean, dry air that helps protect sensitive machinery, improve process performance, and reduce maintenance costs.

Air Force systems offer:

  • High-pressure clean, dry air delivered on demand.
  • Low pressure dew points to protect equipment from moisture and corrosion.
  • Multi-stage filtration to remove oil, water, and particulate contamination.
  • Reduced downtime and maintenance by supplying consistent, high-quality compressed air.
  • Seamless integration with Liberty Systems’ Nitro Force® nitrogen generators or existing compressed air systems.

Air Force® is ideal for laser cutting, manufacturing, pneumatic equipment, and other industrial processes that require clean, dry, high-pressure compressed air for reliable operation.

What does my warranty cover?

Liberty Systems backs every system with one of the strongest warranties in the industry. Every system includes a standard warranty covering defects in materials and workmanship, with extended 2- and 3-year options available on select series. Coverage depends on series and routine preventive maintenance. Your Sales Engineer can confirm what applies to yours.

What is FilterStar?

FilterStar encompasses our service agreements and courtesy maintenance reminders. If you choose to perform preventive maintenance on your own, or you prefer to order service parts as needed, Liberty systems will send a courtesy message to you, reminding you of the items needed and when equipment service is due.

Will Liberty Systems ship the orders (freight-shipping arrangements)?

You keep full control over routing and cost. Liberty Systems provides everything needed to book the load: weights, dimensions, piece count, and handling requirements.

What happens if the product I received is damaged?

We will assess the damage, if it is cosmetic, we will put the system into operation and make any necessary repairs at the soonest date possible.

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Contact Us

N22W22922 Nancys Court
Waukesha, WI 53186
262-600-3921
Monday
8:00 AM - 5:00 PM
Tuesday
8:00 AM - 5:00 PM
Wednesday
8:00 AM - 5:00 PM
Thursday
8:00 AM - 5:00 PM
Friday
8:00 AM - 5:00 PM
Saturday
Closed
Sunday
Closed
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