Description Screw air compressor Gardner Denver ESM26 A34905119B
Gardner Denver ESM and VS series compressors are a premium solution for productions that require continuous supply of high-quality compressed air. Thanks to innovative design, advanced energy-saving technologies and the most generous 10-year warranty in the industry, these compressors set a new standard of reliability and cost-effectiveness in their power class.
Premium screw element design – the heart of the compressor
In-house production for maximum reliability
The screw compression element (Airend) is the heart of any compressor, and that is why Gardner Denver maintains full control over its design and production. The company uses the most modern equipment for CNC rotor grinding in combination with online laser quality control technologies.
Innovative technical solutions
High-efficiency design with slow rotation speed
The screw element provides high performance at reduced engine speeds, which directly affects the reduction of energy consumption. This design ensures an optimal balance between performance and operational cost-effectiveness.
Fail-safe shaft seal and integrated components
The innovative design includes:
- Fail-safe shaft seal that minimizes leakage risks
- Integrated oil filter for continuous lubricant cleaning
- Built-in oil control valve for optimal distribution
These solutions radically reduce the number of external hoses, which not only increases system reliability but also simplifies maintenance and reduces the likelihood of failures.
Premium-class quality connections
The use of durable hoses and pipe connections with Viton Victaulic couplings ensures:
- Increased system reliability under pressure
- Ease of installation and removal during maintenance
- Durability of connections even under constant vibrations
Extended Protect 10 warranty
Screw elements are covered by a unique industry warranty of up to 10 years or 44,000 hours of operation (whichever comes first). This is the best confirmation of the manufacturer's confidence in the quality and durability of its product.
Energy efficiency and advantages of Variable Speed technology
Revolution in energy consumption management
VS Series compressors represent the next generation of air compression technologies, where variable engine rotation speed allows achieving unprecedented levels of energy efficiency.
Savings of up to 35% of energy resources
Adaptation to real demand
Unlike traditional fixed-speed compressors (Fixed Speed), VS models dynamically adjust to current production needs:
- Absence of load/unload cycles means significant electricity savings
- Wide regulation range from minimum to maximum performance
- Efficient operation throughout the entire operating range, not just at full load
High-efficiency IE3 electric motor
All compressors are equipped with energy-saving IE3 class electric motors, which provide:
- Reduced electricity consumption compared to standard motors
- Reduction of CO2 emissions and production's environmental footprint
- Compliance with the strictest European environmental standards
Power Drive System drive system
Advanced technologies for maximum efficiency
VS Series compressors are equipped with a high-efficiency Power Drive System, which:
- Exceeds IES2 class requirements according to EN61800-9 standard
- Provides stable energy savings over a wide performance range
- Ensures smooth regulation without jerks and overloads
Reli |able inverter concept
The variable speed system inverter is integrated directly into the electrical cabinet and features:
- Dust protection with replaceable inlet filters
- Optimized cooling system for maximum reliability
- Increased durability and high equipment availability
Integrated heat recovery system
Significant additional savings can be achieved through the integrated heat recovery system:
- Can be factory-installed or as a retrofit kit
- Allows the use of heat generated during compression for space heating or process needs
- Reduces overall enterprise energy costs
Modern control and monitoring systems
GD Pilot SE controller – intelligent operation management
Convenient graphical interface

The advanced GD Pilot SE control system provides:
- Clear 2.8-inch graphical display with text output
- Modern intuitive user interface
- Access to all key parameters with one touch
Monitoring of critical parameters
The system continuously monitors and displays:
- Discharge pressure and line pressure – for air quality control
- Oil temperature – for overheating protection
- Total operating hours and hours under load – for maintenance planning
- Service required indicator – timely warning of maintenance need
- Extended fault log – detailed history of all events for quick diagnostics
Extended control functionality
GD Pilot SE provides the operator with full control over compressor operation:
- Timer control of stop and start for energy savings during non-working hours
- Remote start/stop for centralized management
- Automatic restart after power failure for uninterrupted operation
- Ability to set a second pressure setting for different operating modes
- Indication of current system status
Integration and communication capabilities
The controller supports modern industrial communication protocols:
- RS485 - Modbus RTU for integration into existing automation systems
- Integrated Web-Server Light for browser access
- Programmable inputs and outputs for controlling additional equipment
- Micro-SD card for long-term recording of emergency signals and operational data
- Integrated BLS functionality for extended capabilities
Industry 4.0 solution – iConn system
Intelligent real-time monitoring
iConn is a revolutionary proactive monitoring system that takes compressor equipment management to a new level:
- Continuous data collection and analysis in real time
- Access to system information from anywhere via the Internet
- Automatic detection of anomalies and potential problems
Predictive maintenance
The iConn system analyzes historical data to:
- Predict possible failures before they occur
- Optimize maintenance schedules
- Maximize intervals between shutdowns
- Reduce unplanned production downtime
Maximizing energy efficiency
iConn continuously monitors energy consumption and helps:
- Identify inefficient operating modes
- Optimize settings for minimum energy consumption
- Analyze consumption trends for long-term planning
- Provide recommendations for efficiency improvement
Availability and implementation benefits
- Free on all new VS23-VS29 compressors
- Possibility of installation on existing compressors (retrofitted)
- Operates as an open standard for easy integration
- Proactive maintenance instead of reactive repair
Technical specifications of models
VS Series compressors with variable speed
Model VS23
Technical parameters:
- Motor power: 22 kW
- Operating pressure range: 5-10 bar
- Capacity (FAD):
- At 7.5 bar: 1.11 – 4.12 m³/min
- At 10 bar: 1.03 – 3.70 m³/min
- At 13 bar: 1.35 – 2.89 m³/min
- Noise level at 70% load: 68 dB(A)
- Weight: 681 kg
- Dimensions (L×W×H): 1345 × 880 × 1612 mm
Model VS26
Technical parameters:
- Motor power: 26 kW
- Operating pressure range: 5-13 bar
- Capacity (FAD):
- At 7.5 bar: 1.11 – 4.78 m³/min
- At 10 bar: 1.03 – 4.10 m³/min
- At 13 bar: 0.92 – 3.56 m³/min
- Noise level at 70% load: 69 dB(A)
- Weight: 708 kg
- Dimensions (L×W×H): 1345 × 880 × 1612 mm
Model VS29
Technical parameters:
- Motor power: 30 kW
- Operating pressure range: 5-13 bar
- Capacity (FAD):
- At 7.5 bar: 1.11 – 5.41 m³/min
- At 10 bar: 1.03 – 4.50 m³/min
- At 13 bar: 0.92 – 3.82 m³/min
- Noise level at 70% load: 69 dB(A)
- Weight: 712 kg
- Dimensions (L×W×H): 1345 × 880 × 1612 mm
ESM Series compressors with fixed speed
Model ESM23
Technical parameters:
- Motor power: 22 kW
- Capacity (FAD):
- At 7.5 bar: 4.16 m³/min
- At 10 bar: 3.45 m³/min
- At 13 bar: 2.98 m³/min
- Noise level: 67 dB(A)
- Weight: 650 kg
- Dimensions (L×W×H): 1345 × 880 × 1612 mm
H4: Model ESM26
Technical parameters:
- Motor power: 26 kW
- Capacity (FAD):
- At 7.5 bar: 4.84 m³/min
- At 10 bar: 4.13 m³/min
- At 13 bar: 3.44 m³/min
- Noise level: 68 dB(A)
- Weight: 677 kg
- Dimensions (L×W×H): 1345 × 880 × 1612 mm
H4: Model ESM29
Technical parameters:
- Motor power: 30 kW
- Capacity (FAD):
- At 7.5 bar: 5.52 m³/min
- At 10 bar: 4.81 m³/min
- At 13 bar: 4.12 m³/min
- Noise level: 69 dB(A)
- Weight: 681 kg
- Dimensions (L×W×H): 1345 × 880 × 1612 mm
Measurement standards
All technical data are measured in accordance with international standards:
- Capacity (FAD): according to ISO 1217, Edition 4, Annex C and E
- Measurement conditions: air temperature 20°C, inlet pressure 1 bar (A), humidity 0%
- Noise level: measured in free field according to ISO 2151, tolerance ±3 dB(A)
Compressed air quality and cleaning systems
Internal air preparation
High-efficiency separator filter
Gardner Denver compressors provide the highest quality compressed air thanks to:
- Two-stage filtration system that guarantees oil carryover less than 3 ppm
- Reliable oil separation from air in all operating modes
- Separator tank with hinged lid for quick maintenance
Enhanced efficiency cooling system
The aftercooler with large surface area provides:
- Optimal cooling of compressed air
- Low operating temperatures for increased reliability
- Reduction of discharge temperature for equipment protection
- Efficient moisture condensation
Thermostatically controlled fan
High-efficiency motor-driven fan:
- Provides extremely quiet operation
- Allows compressor placement directly in the workplace
- Maintains optimal temperature under any load conditions
- Allows maximum air line length without additional equipment
External air treatment portfolio
Modern production processes require the highest standards of compressed air quality. Gardner Denver offers a full range of equipment to bring air to the required parameters:
Water cyclone separators
Efficient separation of condensate and mechanical impurities at the initial air preparation stage.
Compressed air filters
Multi-stage filtration system for removal of:
- Solid particles of various sizes
- Oil residues and aerosols
- Odors and vapors
Condensate drain system
Automatic condensate removal without compressed air losses, ensuring:
- Stable air quality
- Equipment protection from corrosion
- Environmentally friendly condensate disposal
Refrigerant dryers
Air cooling to reduce dew point and provide:
- Dry air for pneumatic tools
- Protection from condensation in air lines
- Energy-efficient operation with minimal costs
Adsorption dryers
For the highest air quality requirements:
- Heatless dryers – for stable operation without additional energy
- Heat-regenerated dryers – for maximum energy efficiency at large volumes
Nitrogen generators
On-site nitrogen production for processes requiring an inert atmosphere.
Comparison of ESM and VS technologies
Key differences for optimal choice
ESM series – fixed speed stability
Ideal application conditions:
- Productions with constant compressed air demand
- Processes with uniform load throughout the work shift
- Facilities where operational predictability is more important than flexibility
Advantages:
- Simple and reliable design
- Easy maintenance
- Predictable energy consumption
- Lower initial cost
VS series – intelligent demand adaptation
Ideal application conditions:
- Productions with variable compressed air demand
- Processes with uneven load
- Facilities with high energy efficiency requirements
- Systems with partial load for a significant time
Advantages:
- Energy savings up to 35% compared to fixed speed
- No load/unload cycles
- Extended service life due to smooth operation
- Possibility of iConn system upgrade
- Optimal efficiency across the entire performance range
Operating cost distribution
Compressor ownership cost structure:
- Energy: 83% – the largest cost share, where VS technology provides maximum savings
- Maintenance: 10% – regular support costs
- Investment: 7% – initial equipment cost
Maintenance and operation
Compact design for easy installation
Space optimization
All ESM and VS series models have identical compact dimensions:
- Small footprint reduces installation area requirements
- Unified dimensions simplify equipment replacement or upgrade
- Possibility of installation in limited production spaces
Easy access to maintenance points
Thoughtful design ensures:
- Fold-down and removable side cabinet doors
- Full access to all maintenance points
- Convenient location of control and measuring instruments
- Minimum time for technical maintenance
Reduced maintenance costs
Minimized number of moving parts
Engineering excellence of the design:
- Reduced number of wear components
- Extended intervals between maintenance
- Lower cost of spare parts
- Reduced downtime for technical maintenance
Gardner Denver original spare parts
Use of original components guarantees:
- Long service life even in the harshest operating conditions
- Minimum losses for additional energy savings
- High reliability and maximum uptime
- Strict quality control at all production stages
Protect 10 program – the best warranty in the industry
Unique warranty coverage conditions
Gardner Denver offers one of the most generous warranties on the market:
- 10 years or 44,000 hours on the screw compression element
- 6 years or 44,000 hours on the entire compressor unit
- Warranty valid from the earlier date
Benefits for the owner
- Completely free program for the compressor owner
- Guaranteed service quality from authorized service partners
- Accurate planning of maintenance costs and budgeting
- Maximum investment protection
Warranty retention conditions
To maintain full warranty, it is necessary to:
- Use Gardner Denver original spare parts and lubricants
- Perform maintenance at authorized service centers
- Follow recommended technical maintenance intervals
- Use the compressor in accordance with technical specifications
Additional features and upgrades
GD Connect multi-compressor control system
Optimization of compressor station operation
For enterprises with multiple compressors combined into a common network, the centralized GD Connect control system is critically important:
- Coordination of all compressors for maximum efficiency
- Automatic load distribution between units
- Ensuring system operation at the highest efficiency level
- Preventing simultaneous operation of compressors in inefficient modes
GD Connect 12 Plus Multi Compressor Controller
The controller provides:
- Control of up to 12 compressors simultaneously
- Intelligent demand forecasting
- Automatic unit on/off depending on load
- Detailed statistics of the entire compressor station operation
Integrated heat recovery system
Turning waste into resource
During air compression, a significant amount of heat is released, which can be effectively used:
- Up to 90% of the energy consumed by the compressor is converted into heat
- Heat recovery for heating production or office premises
- Process water heating for production needs
- Additional savings on heating and water heating
Installation options
- Factory installation – integrated at the compressor production stage
- Retrofit kit – can be installed on existing compressors
- Includes all necessary pipelines, fittings and control system
Benefits of choosing Gardner Denver
Global expertise and local support
Decades of industry experience
Gardner Denver is a recognized leader in compressor equipment manufacturing:
- Decades of experience in development and production
- Continuous innovation and technology improvement
- Compliance with the strictest international quality standards
Comprehensive approach to compressed air
Full range of solutions from one manufacturer:
- Compressors from 2.2 to 500 kW – full power range
- Fixed and variable speed technologies
- Complete line of air treatment equipment
- Oil-free EnviroAire series compressors for critical applications (15-355 kW)
Environmental responsibility
Sustainable production process
Gardner Denver adheres to the principles of environmentally responsible production:
- Use of energy-efficient technologies in own production
- Minimization of waste and emissions
- Rational use of resources
Reducing environmental footprint
ESM and VS series compressors contribute to reducing environmental impact:
- IE3 class energy-efficient motors reduce electricity consumption
- CO2 emission reduction through energy savings
- Heat recovery capability for additional energy consumption reduction
- Equipment durability reduces replacement and disposal needs
Application industries
Versatility for different industries
Manufacturing industry
Gardner Denver compressors are ideal for:
- Automotive manufacturing – powering pneumatic tools and robotic lines
- Mechanical engineering – supporting metal processing technological processes
- Plastics production – control of forming and cooling of products
- Woodworking – powering pneumatic equipment and paint booths
Food industry
Application in the food industry requires special standards:
- Packaging and filling of products
- Transportation of bulk materials
- Equipment cleaning and blowing
- High air quality standards to comply with sanitary norms
Pharmaceutical and chemical industry
Critical requirements for compressed air quality:
- Production of medicinal preparations
- Laboratory equipment
- Technological processes in clean rooms
- Possibility of additional air purification to required standards
Textile industry
Specific needs of textile production:
- Powering weaving machines
- Pneumatic fiber transportation
- Control of fabric tension and quality
Construction and infrastructure
Mobility and reliability for construction sites:
- Powering pneumatic tools
- Sandblasting surface treatment
- Painting large structures
- Temporary compressor stations
Why variable speed compressors are the future
Economic feasibility of VS technology
Fast return on investment
Despite a slightly higher initial cost compared to fixed-speed models, VS series compressors pay off due to:
- Significant reduction in electricity bills (up to 35%)
- Extended service life due to absence of load/unload cycles
- Reduced maintenance costs due to smoother operation
- Typical payback period: 1.5-3 years depending on usage mode
Long-term savings
Calculation for 10 years of operation shows:
- Accumulated electricity savings can exceed the initial equipment cost
- Fewer repairs and component replacements
- Increased overall production efficiency
Adaptation to modern production requirements
Industry 4.0 flexibility
Productions are becoming increasingly flexible and dynamic:
- Rapid change of production tasks requires adaptive compressed air supply
- Integration with other production management systems
- Remote monitoring and control capability
- Data analytics for continuous efficiency improvement
Compliance with environmental standards
Growing energy efficiency requirements:
- Legislative requirements for energy consumption reduction
- Corporate sustainable development goals
- Production certification according to environmental standards
- VS compressors help achieve these goals
Technical support and service
Network of authorized service centers
Professional maintenance
Gardner Denver provides full support throughout the entire life cycle:
- Qualified technicians with official certification
- Regular training of personnel in the latest technologies
- Access to technical documentation and manufacturer support
- Rapid response to challenges
Scheduled technical maintenance
Structured approach to maintenance:
- Clear schedules of routine work
- Use of original spare parts and materials
- Detailed documentation of all performed work
- Recommendations for equipment operation optimization
Personnel training
Programs for operators
Ensuring proper operation:
- Basic training in compressor operation
- Understanding the GD Pilot SE control system
- Safety rules and accident prevention
- Detection of typical faults
Advanced training for technical specialists
Improving the qualifications of maintenance personnel:
- Detailed study of compressor design
- Diagnostics and troubleshooting
- Work with iConn system and remote monitoring
- Optimization of settings for specific operating conditions
Economic analysis and ownership cost
Structure of compressor equipment costs
Initial investment (7% of total costs)
One-time acquisition costs include:
- Cost of the compressor itself
- Delivery and installation
- Connection to power grid and air distribution system
- Initial setup and commissioning
Maintenance costs (10% of total costs)
Regular operating costs:
- Scheduled technical inspections and maintenance
- Replacement of consumables (filters, oil, separators)
- Repair and replacement of worn components
- Equipment downtime cost during maintenance
Energy costs (83% of total costs)
The largest share in ownership cost:
- Electricity consumption throughout the entire service life
- Dependence on operating mode and load
- This is where VS technology provides the greatest savings
- Importance of efficiency at partial load
Savings calculation with VS technology
Example calculation for typical production
Initial data:
- 30 kW compressor
- 6000 hours of operation per year
- Electricity tariff: 0.10 EUR/kWh
- Average load: 70%
Consumption comparison:
- ESM (fixed speed): ~30 kW × 6000 h = 180,000 kWh/year
- VS (variable speed): ~30 kW × 0.65 × 6000 h = 117,000 kWh/year
- Savings: 63,000 kWh/year or 6,300 EUR/year
Payback: With a cost difference of 8,000-10,000 EUR, payback is 1.3-1.6 years
Additional economic benefits
Peak load reduction
VS compressors help reduce electricity costs:
- Smooth start without consumption spikes
- Avoiding penalties for exceeding peak load
- Possibility of using more favorable tariffs
Extended equipment service life
Savings on replacement and repairs:
- Fewer cycles mean less component wear
- Extended intervals between major overhauls
- Higher residual value of equipment upon sale or replacement
Installation and commissioning
Room requirements
Installation room parameters
Optimal conditions for compressor operation:
- Temperature: from +5°C to +40°C
- Ventilation: sufficient fresh air supply for cooling
- Humidity: up to 95% relative humidity (without condensation)
- Air cleanliness: avoid dust and aggressive impurities
Space requirements
Placement planning taking into account:
- Compressor dimensions: 1345 × 880 × 1612 mm
- Additional space for maintenance (minimum 1 m on each side)
- Access for component replacement and transportation
- Space for auxiliary equipment (dryers, receivers)
Connection and startup
Electrical connection
Power supply requirements:
- Corresponding power grid capacity (22-30 kW + reserve)
- Quality grounding for personnel safety
- Protection against overvoltage and short circuit
- Connection according to manufacturer's electrical diagram
Pneumatic connection
Integration into the air distribution system:
- Quality connections to prevent leaks
- Correct pipeline diameter to minimize pressure losses
- Installation of additional equipment (receivers, dryers, filters)
- Condensate drain system
Commissioning
New equipment startup procedure:
- Checking all connections and settings
- Filling the system with lubricant and checking the level
- Test run without load
- Setting operating parameters for specific conditions
- Training operators in basic functions
Frequently asked questions and answers
Model and configuration selection
How to choose between ESM and VS series?
Choose ESM if:
- Your production has stable, constant compressed air demand
- The compressor operates at full load most of the time
- Initial budget is limited
- Maintenance simplicity is a priority
Choose VS if:
- Air demand changes throughout the working day
- The compressor often operates at partial load
- Energy efficiency is a critical factor
- You plan integration with Industry 4.0 systems
What capacity do I need?
Determining required capacity:
- Calculate total consumption of all pneumatic consumers
- Add 20-30% reserve for future expansion and leaks
- Consider equipment simultaneity
- Consider installing a receiver to cover peak loads
Operation and maintenance
How often should the compressor be serviced?
Recommended maintenance intervals:
- Daily: visual inspection, oil level check
- Weekly: condensate check, air filter cleaning
- Every 500 hours: air filter replacement
- Every 2000 hours: oil and oil filter replacement
- Every 4000 hours: separator replacement, detailed inspection
Can the compressor be serviced independently?
Maintenance levels:
- Basic maintenance can be performed by trained enterprise personnel
- Scheduled maintenance is better entrusted to an authorized service center
- Repair and diagnostics require qualified specialists
- To maintain Protect 10 warranty, maintenance in authorized centers is mandatory
Energy efficiency and savings
How much can be saved with VS technology?
Actual savings depend on:
- Your production load profile
- Number of operating hours per year
- Electricity cost in your region
- Typical savings are 20-35% compared to fixed speed
Is it worth installing a heat recovery system?
Heat recovery feasibility:
- With compressor operation more than 4000 hours per year – economically justified
- Greatest efficiency in the cold season
- Ideal for enterprises with hot water or heating needs
- System payback: 2-4 years
Air quality and additional equipment
Do I need an air dryer?
Dryer necessity depends on application:
- Mandatory: for painting, food industry, precision tools
- Recommended: for most production applications
- Possible without it: only for simple pneumatic tools in warm premises
What type of dryer to choose?
Dryer type selection:
- Refrigerant: most popular, economical, dew point +3°C
- Heatless adsorption: for critical applications, dew point up to -40°C
- Heat-regenerated adsorption: energy-efficient for large volumes
Conclusions and recommendations
Why Gardner Denver ESM and VS – the right choice
Gardner Denver ESM and VS series compressors (22-30 kW) represent an optimal combination of:
Reliability:
- In-house production of key components
- Decades of experience and brand reputation
- Extended 10-year Protect 10 warranty
- Minimum number of moving parts
Efficiency:
- Energy savings up to 35% with VS technology
- IE3 class high-efficiency motors
- Optimal operation across all load ranges
- Heat recovery capability
Technological advancement:
- Modern GD Pilot SE control system
- Industry 4.0 integration via iConn
- Predictive maintenance and remote monitoring
- Readiness for future technological requirements
Cost-effectiveness:
- Fast return on investment (1.5-3 years for VS)
- Lowest ownership cost in its class
- Minimum maintenance costs
- Maximum service life
Implementation recommendations
Step 1: Needs analysis
- Determine actual compressed air needs
- Analyze load profile throughout the day/week
- Assess air quality requirements
- Calculate possible savings with VS technology
Step 2: Configuration selection
- Choose a model of appropriate power (VS23, VS26, VS29 or ESM23, ESM26, ESM29)
- Determine the need for additional equipment (dryers, filters, receivers)
- Consider the possibility of installing a heat recovery system
- Plan integration with iConn system for VS models
Step 3: Installation preparation
- Prepare a room with proper ventilation
- Ensure necessary electrical power
- Plan air pipeline routing
- Train personnel in basic operation
Step 4: Commissioning and optimization
- Involve an authorized service center for startup
- Configure operating parameters for your needs
- Activate iConn monitoring system (for VS models)
- Establish a scheduled maintenance plan
Investment in your production future
By choosing Gardner Denver ESM or VS series compressors, you are investing not just in equipment, but in:
- Production continuity thanks to maximum reliability
- Reduction of operating costs through energy efficiency
- Technological flexibility with Industry 4.0 integration capability
- Environmental responsibility through reduced energy consumption and emissions
- Peace of mind and confidence thanks to the best warranty in the industry
Gardner Denver is not just a compressor supplier, but a partner in your business development, providing a reliable source of compressed air for many years of efficient operation.
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