110-250 kW 
7-8,5-10 bar 
12,4-44,5 m³/min
Oil-Free, Two-Stage, Direct Coupled, Fixed/Variable Speed
Rotary Screw Air Compressors
We offer more sustainable, Class 0-certified , fully oil-free air solutions for the food, beverage, chemical and electronics industries.
Advantages
• Produces less filter waste than oil-injected compressors, which reduces your maintenance costs down.
• It can be used safely in sensitive industries such as food and pharmaceutical for the highest hygiene.
• Highly durable performance suitable for working in the harshest operational conditions.
• Models with VSD technology save up to 35% energy and reduce your energy costs.
• Special venturi design prevents rapid pressure fluctuations and high-frequency vibrations.
General Features
• IE4 efficiency-class electric motors
• Soundproofed canopy
• Electrostatic coated canopy components for high corrosion resistance
• Electric motor protection to prevent overload
• Air-cooled and water-cooled options available
• Fixed and variable speed drive options
• Soft starter at fixed speed models
• Direct coupled drive system
Screw Block
• Two-stage screw block
• Bearing system developed with the latest technology ensures long life and vibration-free operation
• Lower overall volume achieved by integrating the oil sump into the gearbox
• High level sealing system ensures high performance even during long operation periods
• Synchronizing gears for contact-free power transmission between the rotors
• Minimal footprint achieved with the compact screw block featuring an integrated water cooling system (200-250kW)
• Specially coated rotors and rotor housing internal parts for minimum gap tolerance and high efficiency
• Stainless steel rotors to eliminate the risk of corrosion and locking, for a long service life
• SmartCoat special material coating provides superior durability against high temperatures
• Jacket cooling for both stages
• Reliable operation with long bearing lifetimes
• Staged rotors made of stainless steel
• Lower overall volume achieved by integrating the oil sump into the gearbo
Cooling System
• A compact cooling block that integrates an intercooler, a pre-cooler, an after cooler, and an oil cooler into a single system
• Two-stage cooling with pre-cooler system made of stainless steel pipes and fins
• After-cooler with aluminium bar and plate system
• Efficient cooling and minimal noise levels with low-speed radial fans
• Easy to maintain and clean
• Washable panel filter
• Optimum in-cabinet air circulation to keep the motor and screw block cool
Intake System
• Easy-to-maintain and reliable valves not affected by pollution and condensation
• Thanks to their superior reliability and ease of maintenance, hydraulic intake regulators outperform pneumatic alternatives, ensuring smoother and more dependable operation
• Low noise levels achieved by the intake shutters
Water Separator
• Improved design for highly efficient water separation at the cooler outlet with minimum pressure loss
• Energy-efficient and zero-loss electronic drain system drains the water before the compressed air is sent to the dryer
100% Oil-Free Compressed Air
• It is designed in accordance with sensitive and accurate production conditions.
• It protects the environment and saves energy.
• It is produced in accordance with all global standards and regulations.
• It prevents damage to your products and the contamination of your production lines.
• Therefore, it eliminates unnecessary machine downtime.
• It guarantees the high quality compressed air you need.
Controller
• 7-inch Touchscreen Color TFT Display
• Without the need for an external main controller, ability to work synchronized for up to 5 compressors
• Expandable I/O
• Weekly scheduler for starting / stopping the machine at 3 different time intervals can be individually set for each day of the week
• Dual PID feature on inverter-equipped models can run simultaneous PID for temperature and pressure
• Pressure PID on inverter-equipped models ensures energy-efficient operation by maintaining the pressure at the required levelt
• Temperature PID on inverter-equipped models controls the fan speed to maintain the screw block’s most efficient operating temperature
• On inverter-equipped models, all inverter and compressor control data are managed from a single point
• Internal ModBus communication
• User-friendly on-screen interface
• Alarm log records the last 20 alarms
• Periodic maintenance warnings and log records
110-250 kW 7-8,5-10 bar 12,4-44,5 m³/min
TECHNICAL SPECIFICATION
- Unit performances measured in reference conditions which are 1 bar absolute air Pressure, %0 relative humidity, 20°C inlet air temperature, 71°C thermostatic valve set temperature and use of Smartoil.
- Hertz Kompressoren reserves its rights to make changes in its products and specifications without prior notice.
* Refers to free air delivery measured according to ISO 1217:2009, Annex E standard.
TECHNICAL SPECIFICATION (VSD)
