This type of vacuum pump is not adversely affected by air-admittance during the moulding process (‘rough’ vacuum) unlike oil-lubricated pumps which, despite achieving higher levels of vacuum, can vent oil vapour if used in this type of application.
Available as stand-alone pumps or in a range of configurations.
-High-output oil-free rotary vane vacuum pumps
-Range of rated outputs with maximum vacuum level of 100-150mbar absolute
-Fitted with Replaceable cartridge-filter to prevent dust and fibre entering the vacuum pump
-Running time approx 4000-8000 hours between service intervals
-Range of configurations available to suit single or multi-mould operations
Three Phase Supply
• Larger (25 and 40 m³/hr) pumps can be specified for single phase or three phase supply
Simple ON/OFF Control
• Start/stop DOL control with motor overload protection
Full Switching Control
• Digital display of vacuum gauge level
• User adjustable digital switching unit to minimise pump operation whilst providing constant vacuum output
• Automatically turns pump ON/OFF between pre-set minimum/maximum vacuum level settings
• Control unit with MCB fusing, motor overload protection, and solid-state relay power switching
Absolute Vacuum Gauge
• Digital display to provide readout of vacuum level from atmospheric pressure down to zero mbar (absolute)
Hours-Run Meter
• Electronic counter to record the total pump use in hours
• Allows accurate planning of service intervals
Small Reservoir
• 20 litre vacuum reservoir
• Includes two vacuum take-offs
• One vacuum take-off is fitted with a regulator, providing a constant downstream, vacuum independent of upstream variations