Vacuum airend
- Rotary screw vacuum airend with energy-saving SIGMA profile
- V-belt Drive
- Automatic belt tensioning
- Inlet valve controlled by a solenoid valve
- Cooling oil pump (gear pump)
- Permissible inlet air temperature up to +45 °C
Electric motor
- Premium Efficiency IE3
- Degree of protection IP 55 (ASV series: IP 54)
- Insulation class F
- 400 V, 3-phase, 50 Hz
Cooling
- Air-cooled aluminium fluid cooler
- Designed for ambient temperatures up to +40°C
Cooling fluid circuit
- Thermostatic valve
- Bypass of full-flow micro-filter with replaceable insert
- Combined fluid reservoir and separator tank with pressure relief valve
- Multi-stage separator cartridge
- Fluid level sight glass drain valve and hose
- Quick-release couplings for measuring pressure differential
- Separator cartridge
Control cabinet
- IP 54
- 230 V control voltage
- Direct motor start-up
- Motor overload protection relay
General design
- Compact enclosure mounted on a solid base frame equipped with anti-vibration mounts
- Powder-coated surfaces
- Mineral wool soundproof lining
- Access doors on top and side
- Replaceable cooling air filter
- Airend and motor on anti-vibration mounts
- Flexible piping
- Fully guarded belt drive and fan
- Vacuum filter with pressure transducer to indicate clogging
- Infinite control of inlet valve opening via partial-load controller
- Changeover to Dual control mode possible
- Gas ballast unit for enhanced water vapour tolerance
SIGMA CONTROL 2
- "Traffic-light" LED indicators show operational status at a glance
- Plain text display
- 30 selectable languages
- Soft-touch keys with icons
- Fully automated monitoring and control
- Selection of Dual, Quadro, Vario and Continuous control as standard
- Interfaces: Ethernet
- Additional optional communications modules for: Profibus DP, Modbus, Profinet and DeviceNet
- SD-card slot for data-logging and updates
- RFID reader
- Web server