At the heart of each HPC HSD series, twin motor direct drive rotary screw air compressor is the specially designed airend with flow-optimised Sigma Profile rotors delivering more compressed air for less energy consumption. The efficiency of the airend is further complimented by a highly effective cooling system with dual-flow fan. This innovative design not only enhances cooling performance, but also minimises sound emissions. Furthermore, separate intake of motor-cooling air and air for compression from the ambient surroundings ensures optimum motor cooling and increased compression performance.

"HPC Air Compressors Come Complete With A Fully Inclusive 5 Year 'No Quibble' Parts & Labour Warranty"

The HPC HSD series rotary screw compressors are the perfect partners for high efficiency industrial compressed air stations. The internal SIGMA CONTROL 2 compressor controller offers numerous communication channels, which allows seamless connection with advanced master controllers, such as KAESER’s SIGMA AIR MANAGER, and in-house centralised control systems. This enables simple set-up and achieves unprecedented levels of efficiency. 

The distinctive and eye-catching design of the HPC HSD series from the outside is complemented by intelligent component layout on the inside for even greater energy efficiency: All service and maintenance points are within easy reach and directly accessible. This saves both time and money when it comes to servicing

Complete unit

• Ready for operation
• Fully automatic
• Super sound-proofed
• Vibration-damped
• All panels powder-coated
• For ambient temperatures up to +45 °C
• Service-friendly design: Motor bearing lubrication from the outside

Airend

• Single stage with cooling fluid injection for optimal rotor cooling
• Genuine KAESER rotary screw airend with energy-saving SIGMA profile
• 1:1 Direct drive

Cooling fluid and air circuit

• Dry air intake filter with pre-filtration
• Inlet silencer
• Inlet and vent valves, pneumatic
• Cooling fluid separator tank with three-stage separator system
• Pressure relief valve
• Minimum pressure check valve
• Thermostatic valve and eco fluid filter in coolant circuit
• Fluid and compressed air cooler, water-cooled
• Kaeser centrifugal separator with electronically-controlled condensate drain for energy savings without pressure loss
• Piping and centrifugal separator made from stainless steel
• Package water-cooled as standard: Fluid and compressed air aftercooler implemented as plate or optionally available tube-type heat exchanger.

Heat recovery (Option)

• Optionally available with integrated fluid/water plate-type heat exchanger and additional fluid thermostatic valve
• External connections

Cooling

• Water-cooling as standard
• Soldered plate heat exchanger
• Machine interior ventilation via two independently controllable fans

Electrical components

• Premium Efficiency IE4 drive motor with three Pt100 winding temperature transducers for engine monitoring
• Control cabinet to IP 54
• Switching cabinet ventilation
• Automatic star-delta starter
• Overload relays
• Control transformer

SIGMA CONTROL 2

• Interfaces for data communication comprising RS 232 for a modem, RS 485 for a slave compressor in base load sequencing mode
• Profibus DP interface for data networks
• Ergonomic control panel: Red, yellow and green LEDs show the operational state of the machine at a glance
• Four-line plain text display
• 30 selectable languages
• Touch keys with icons
• Duty cycle indicator
• Fully automatic monitoring and regulation of airend discharge temperature; monitoring of motor current, direction of airend rotation, air filter, fluid filter and fluid separator cartridge
• Display of performance data
• Service intervals of primary components
• Maintenance interval counter
• Display of status data
• Event memory