Dry running rotary vane vacuum pumps, compressors and pressure-vacuum pumps

Introduction:
Rotary vane/pressure vacuum pumps,oil-free,air-cooled

The benefits of the new range are visible at a glance: maintenance and control panel are placed on one side only for easy access to filters and valves. Additional features include heat reduction through large cooling air pathways and vents. Design features such as the solid ribs, optimised cooling air circulation, thermal separation of suction and compression chambers within the filter housing, as well as a minimum number of connected heat transferring parts reduce machine temperatures.
 

What is an oil-free vacuum pump?

An oil-free vacuum pump, also referred to an oil-less vacuum pump or dry running vacuum pump, is essentially a pump that does not use lubricants in the chamber to create a vacuum or cool the pump. In oil-lubricated machines lubrication is used a seal the vacuum chamber and cool the pump. Oil-free machines use other means to cool the machine during operation such as water or air cooling.

Typical applications are found in widely ranging sectors:

• Printing and Paper

• Pre-Press
• Press
• Post-Press
• Central air supply 

• Woodworking

• Holding and lifting
• Preservation
• Wood drying

• Textile

• Circular and flat knitting machines
• Draining and drying of dyed carpeting
• Fabric cutting tables
• Power air looms
• Sock knitting machines
• Steam treatment of yarn

• Pneumatic Conveying

• goods in dust particle form (flour, cement)
• grain-type goods (dragées, granulate, pellets)
• piece goods (pneumatic tube conveying systems) and
• mixed goods.

• Plastics

• Calibration
• Contact-free turning of plastic film
• Cooling and drying of extruded plastics
• Degassing extruders
• Degassing of rubber parts
• Dryers
• EPS-Foaming
• Generation of compressed air for plastic welding
• Pneumatic conveying systems
• Production of composite material

• Parts Cleaning

• De-oiling under vacuum
• Dry-blasting
• Flood injection washing under vacuum
• Vacuum drying

• Packaging

• Air cushion machines
• Blister packaging
• Filling and closing units
• Production of paper bags
• Reduction of transport volume
• Tray sealing
• Trim removal

• Food and Beverage

  • Bottle filling
  • Chocolate production
  • Cleaning of vegetables
  • Coffee roasting
  • Dairy processing
  • Deaeration of mineral water
  • Deodorizing of salad oils and fats
  • Filtration units
  • Fish and prawn pond aeration
  • Food preservation
  • Ham drying
  • Humidification of tobacco
  • Milking systems
  • Meat processing and packaging
  • Poultry processing
  • Vacuum cutters
  • Sterilizing

Why should you consider using an oil-free vacuum pump?

A low energy solution

Oil-free vacuum technologies offer considerable savings in terms of overall energy efficiency. Oil-free vacuum pumps when combined with a VSD (variable speed drive) can reduce energy consumption by up to 50% in some applications compared to their oil lubricated equivalents. The Specific Energy Requirement or SER is the ratio of the power consumption (in watts) of the vacuum pump to the respective pumping speed (m3/h) in relation to the suction pressure (mbar abs.). Simply stated, how much energy is needed to move a certain amount of air from A to B. The compression principles of oil-free vacuum pumps can allow for a much reduced SER depending on the application requirements. Most oil-free technologies are compatible with a VSD to allow for greater process accuracy from the pump and therefore reduce energy consumption further.

A clean solution

If you have a process that requires stringent or lower level of contamination risk then oil free vacuum pump offer an efficient and assured solution. These vacuum pumps have been specifically developed to meet the needs of manufacturers that require only the highest air purity environments.

A low maintenance solution

If you're looking to reduce maintenance costs an oil-free vacuum pumps would be the ideal solution. These pumps do not require the same level of maintenance as an oil-lubricated machine. There is no need to replace the oil and separator elements, which is regularly required and naturally results in higher operating costs over the pump's lifetime.

A low downtime solution

Unlike there oil lubricated counterparts, oil-free vacuum pumps do not have to be removed to carry out essential maintenance servicing. This means there is little or no equipment downtime, as well as any indirect costs from lost production uptime.

An environmentally friendly solution

Oil-free vacuum pumps remove the cost of lubricants, waste oil disposal and labour. They also have the additional benefit of reducing oil consumption in our manufacturing processes, lessening the user's impact on the environment from production of oil and disposal of waste oil.

A lower total cost of ownership solution

All of the above benefits allow oil-free vacuum pumps to offer outstandingly low total cost of ownership (TCO) over the lifetime of the pump. Reduced service and maintenance costs, combined with energy savings will reduce operating costs per machine. Although the initial investment of an oil lubricated solution may look appealing, the lifetime costs far outweigh those of a dry running machine in the long-term.