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The Complex need - Every Air System is Different

The Variable Speed Compressor - One Smart Solution

Variable speed compressors can efficiently and reliably handle the varying air demand found in most plant air systems. These compressors speed up and slow down to match air supply to air demand as it fluctuates.
Unit of Measure


Pressure Drop through Compressor

N/A 2 psig

Power Consumption

N/A 1 %

Compressor Type

N/A Rotary Screw

Selectable Pressure Range

N/A 70 to 175 psig

Industry Standards/Certifications

N/A Compressed Air and Gas Institute (CAGI) Energy Star Partner ISO 9001:2008




N/A Gardner Denver™

Compressor Energy Cost Estimator

Nominal Power

N/A 110 kW

Operating Cost per Year (5000 hours) at Cost per kWh ($ 0.04)

N/A 22000 USD

Operating Cost per Year (5000 hours) at Cost per kWh ($ 0.06)

N/A 33000 USD

Operating Cost per Year (5000 hours) at Cost per kWh ($ 0.08)

N/A 44000 USD

Operating Cost per Year (5000 hours) at Cost per kWh ($ 0.10)

N/A 55000 USD

Operating Cost per Year (5000 hours) at Cost per kWh ($ 0.12)

N/A 66000 USD

Note for Compressor Energy Cost Estimator

N/A Hours of operation based on two 8-hour shifts, 6 days per week.
Calculations based on nominal kW.

Additional Information

Additional Information

N/A The right variable speed compressor in the right application delivers significant energy savings and a stable, consistent air supply.

Poor system design can increase energy cost up to 5 times.

ESP 20/20 qualifies the compressor for GDXTRA, Gardner Denver™'s extended warranty program on airends, delivering the tools to ensure the compressor is operating at peak performance with the peace of mind that the compressor is protected.

Your Business is Unique, so is your Compressed Air System

Your Business is Unique, so is your Compressed Air System

N/A Typically, air demand in a plant varies widely throughout the day. In addition, fluctuations can occur from shift-to-shift, weekday-to-weekend, and season-to-season. Pressure requirements can also change from machine-to-machine or from one application to another. You need someone to evaluate your unique, often complex requirements and recommend a tailored solution.

The Wrong Solution is Expensive

The Wrong Solution is Expensive

N/A Compressed air is not free and has a big impact on plant productivity. The wrong air system is costly - in the form of excessive energy, repair and maintenance costs, downtime, poor compressed air quality, unacceptable noise levels, and more. System design and compressor choice are important decisions with long lasting implications.

The Smarter Solution - VS Series Variable Speed Compressors

The VS Series™ - Rethinking Everything

N/A The VS Series™ design started from a "clean sheet of paper". This approach is critical to making a variable speed compressor that delivers optimal performance over a wide operating range. For maximum reliability, key features must be part of the design foundation. With the VS Series™, an international team of world-class engineers delivers a truly purpose-built compressor product line.

Technology Paves the Way

N/A Our engineering team utilized the latest technologies in developing the VS Series™ so that it is loaded with the critical product benefits you want. Important technologies used include:
  • Computational Fluid Dynamics (CFD) to minimize pressure drop from the air inlet all the way to the air discharge of the compressor. This maximizes efficiency and minimizes your electrical cost of operation.
  • Finite Element Analysis (FEA) to allow the strength and rigidity of a component to be completely understood. If a weak area is identified, design changes are made before the product is produced.
  • Solid Modeling in the design phase allows these technologies to be applied successfully. In addition, product quality and serviceability are greatly enhanced when viewed and analyzed from a solid model.
  • Thermography was utilized to maximize heat transfer and ensure that cool, clean compressed air is delivered to the plant.
All of these technologies are combined with a proprietary rotor profile design that optimizes efficiency across a broad operating range. Smart!

The Benefit

N/A Efficient, Reliable, Flexible…Unmistakable

The VS Series™ is a complete, revolutionary compressor line that is a Smarter Solution to your Complex Needs. The efficiency limitations of competitive variable speed drive compressors have been eliminated to establish a new standard in this area. The flexibility of this line exceeds that of any other compressor. This means stable pressure in the plant and maximum productivity. Finally, the VS Series™ is so reliable it is backed by the best warranty in the business.

Efficiency Delivering the Lowest Possible Electrical Cost

Evaluate Efficiency Everywhere - Full Load, Part Load, No Load

N/A Upper Range - Part Load Efficiency Gains Importance

At full load in the upper flow range, top performing base load modulating compressors are typically better performers. As air-flow decreases, the other compressor types become more energy efficient.

Middle Range - VSD Takes Charge

In the middle range, the VSD compressor shows significant energy savings compared to the other compressor types. At about 75% of a compressor's full load flow, the VSD compressor is 5 - 15% more efficient, and the advantage increases as flow decreases.

Lower Range - VSD is Far Superior

In the lower range, the VSD compressor savings become even greater. A variable speed compressor handling a second shift that uses only 40% of the air requirements of the first shift is just one of many ideal applications for a VSD compressor.

The VS Series™ Provides Efficiency Everywhere - Full Load, Part Load, No Load

N/A Typical VSD compressors are not designed to maximize performance. Most manufacturers simply adapt their current products to a variable speed drive and motor. The VS Series™ products are specifically designed to obtain the greatest efficiency across the entire operating range.

To maximize efficiency, the VS Series™ eliminates every possible kW.

Unlimited Start/Stop Operation

When air is not needed VS Series™ compressors stop running without venting air you've already paid to compress. Thus, no Power is used when no air is needed. When air demand returns, these compressors "soft" start against a pressure load. The result - energy consumption is kept to an absolute minimum.

Airends Optimized for Variable Speed Operation

Gardner Denver™ invested millions of dollars to develop new airends and new rotor profiles for the specific purpose of maximizing efficiency in variable speed compressors.

Enduro® + airends perform efficiently at all speed

More Models to Choose from

Every platform of the VS Series™ has several models from which to choose. This means you can better match your needs to a specific compressor and get the best value for your application.

Designed for Minimum Pressure Drop

For every 2 psig of pressure drop through a compressor package an additional 1% of power is consumed. That's why every area on these compressors was designed so that air flows with the least possible restriction.

The Efficiency Foundation - A Matched Motor, Drive and Airend

We started with an airend and rotor profile design that offers industry leading turndown and performance. We partnered with an industry leader to develop a perfectly matched motor and variable speed drive to work with our airend for optimum efficiency and turndown capability. VS 15 - 170 kW (20 - 228 HP) models are direct drive, so there are no efficiency losses from belts.

Flexibility to Surpass Your Goals

Flexibility to Surpass Your Goals

N/A Capability to Meet Varying Compressed Air Demands
  • Shift-to-shift, weekday-to-weekend, or season-to-season… we offer the widest turndown range in the industry. In other words, we have a greater capability to handle variable air demand requirements.
  • Selectable pressure from 70 - 175 psig at the touch of a button - no need for a new compressor when your pressure requirements change.
  • Quick response to pressure changes that maintains target pressure within ±1 psi. This provides stable plant pressure resulting in higher productivity.
  • Full line of compressors to match your compressed air requirements from 11-170 kW. With more models we can perfectly match your needs.
  • Optional integrated dryer through the 70 kW model allows compact, space-saving installation.
The VS Series™ saves time, saves money, maximizes plant productivity - It's like having several efficient compressors in one. Smart!

Reliability to Maximize Uptime

Reliability to Maximize Uptime

N/A Designed for Reliability

We used a "clean sheet of paper" design approach, with all components carefully selected and tested for their specific performance and purpose.

The VS Series™ design incorporates smart injection technology which communicates with the AirSmart™ controller to maintain the discharge temperature of the compressor above the dew point (based on the ambient temperature of the operating environment) to prevent condensate from forming in the lubricant. Smart!

Gardner Denver™'s integrated Tempest design through the 70 kW model eliminates leak points through smart, efficient, latest technology construction. Our new Enduro® + airends for the 80 kW and larger models were developed to be more efficient and reliable than ever.

A Warranty Like No Other
In simple terms, VS Series™ compressors have a best in class warranty. The five-year warranty covering the drive motor, airend, variable frequency drive, controller, and more is unparalleled. With regular lubricant, sampling, and use of OEM parts and lubricant, you are guaranteed to have a compressor that exceeds your reliability expectations.

The AirSmart™ Controller Orchestrating your Compressed Air System

The AirSmart™ Controller Orchestrating your Compressed Air System

N/A Simplicity

The AirSmart™ Controller was designed to make the operator interface with the variable speed drive transparent. You don't need to be an expert on variable speed drives to operate our compressor. The controller takes care of the details.

The controller automatically adjusts the compressor's performance to meet your changing air system demands - saving you energy dollars.

Changing the discharge pressure is as easy as pressing a button. No longer is there a need for a new machine when your pressure demands change.

Communication and Sequencing

The optional communication module allows the VS Series™ units to talk to each other and other Gardner Denver™ compressors to optimize system efficiency. This isn't just an hour-balancing, on/off sequencing scheme. Our controller allows the system to truly optimize efficiency because it knows the capabilities of other machines and orchestrates their operation.

The communication module also allows remote monitoring of the VS units.

Expansion Capabilities

Also available is an optional expansion module that allows additional I/O capabilities for additional monitoring equipment, such as a pressure transducer. The expansion I/Os are standard on VS 80 - VS 260.

Advanced Display

The controller has a four line display with menus and tactile buttons for easy navigation. Two lines display operating information such as pressure, temperature, operating hours, etc., while the other two lines display advisory messages, shutdown messages, recommended part numbers, and service contact information.

Energy Efficient at All Load Levels

Energy Efficient at All Load Levels

N/A The single largest "cost" item, during the life of a compressor is the cost of the electricity required to run the compressor. With esaver, the Gardner Denver™ Rotary Screw Energy Cost Calculator, no matter what load demand, the cost of the electricity used by a compressor can be calculated. Ask your local Gardner Denver™ Authorized Distributor to demonstrate this unique cost-saving tool.

Making Your Job Easier

Making Your Job Easier

N/A Environment

Serviceable Yet Compact Footprint
Our entire VS line was designed with a compact footprint for space-saving, money-saving installation.

Super Low Sound
All VS models are enclosed for quiet, environmentally friendly and employee-friendly operation.

Low Oil Carry-Over
The VS Series™ performs with only 2 - 3 ppm of oil carry-over, measured before the aftercooler, across the entire operating range. This responsible approach minimizes disposal cost, lubricant expense and assures air quality.

Gardner Denver™, an Energy Star Partner, is committed to developing products and introducing technologies that help conserve energy and protect the environment.

Serviceability and Product Support

Great attention was given during the design of the VS line to ensure that our compressors are easy to service and maintain.

Support Network
Gardner Denver™ has a network of trained service providers available whenever needed to keep your compressors in top form. We are committed to stocking components to support your compressed air system needs.

Aftermarket Products
Gardner Denver™ carries a full line of aftermarket products to meet your full system needs.

We thought of everything - a Smarter Solutions™ all the way around!

ESP 20/20

ESP 20/20

N/A Single Compressor Remote Monitoring

ESP 20/20 is a wireless remote monitoring solution that upgrades the air compressor to an intelligent asset providing system performance and advisory notification. Interfacing directly to Gardner Denver™ or third party compressors via discrete inputs and outputs, any compressor asset can be transformed to provide critical operational information through a single web-based application.



N/A Installation Has Never Been Easier

One of the unique features of ESP 20/20 remote monitoring is wireless access to the compressor. This feature is only offered by Gardner Denver™'s ESP 20/20 and provides significant advantages over IP/Network or RS232/Serial based systems.
  • Eliminates time and expense of running CAT5 or other types of cabling to the compressor.
  • Eliminates IP configuration and Network setup.
  • No need to access IT experts for installation.
  • Remote monitoring channel is isolated from your IP network for excellent security.
  • Flexibility in where a compressor can be located.
  • Ease of relocating a compressor, if needed, without having to re-route wires.

Enterprise/Web Based Solution

Enterprise/Web Based Solution

N/A Anytime, Anywhere Access

ESP 20/20 is an enterprise web-based solution, a Gardner Denver™ exclusive feature, which provides substantial advantages over peer to peer solutions offered in most competitive products.
  • Allows multiple compressor assets, at single or multiple locations, to be viewed from single web based interface.
  • No application software needed to view and monitor compressor assets.
  • Easy access from any computer anywhere with access to the internet.
  • Enterprise password protection allows passwords to be assigned to specific personnel at appropriate levels.
  • Alert preferences for personnel are assignable to meet individual needs.
  • Automatic notifications of advisories, alarms, or scheduled maintenance via email, text, page, or voice to match today's mobile technology and work environment.