Claw Vacuum

C-Series – Innovative Claw Technology

The contact-free, frictionless design of the claw vacuum pump offers higher air volume per horsepower. Elmo Rietschle’s C-Series offers energy efficiency with reduced maintenance for industrial vacuum pump and compressor applications.

If you are looking for vacuum and suction capacity results, an Elmo Rietschle claw vacuum pump will meet your needs. Claw vacuum pumps range in capacity from 42 to 671 cfm and can see a maximum continuous vacuum up to 27 in HgV. C-Series claw vacuum pumps are available from Elmo Rietschle with optional variable speed drive.

 

Claw Pressure-Vacuum Pumps

If you are looking for vacuum, pressure and volume flow results, an Elmo Rietschle claw combination pressure-vacuum pump will meet your needs. Pressure-vacuum pumps range in capacity from 57 to 82 cfm and can see vacuum up to 18 in HgV and pressure up to 10 PSIG. Vacuum and pressure operating points are virtually independent of each other with expert flow capabilities and there is no need for water cooling as they function smoothly with integrated air cooling. C-Series claw combination pressure-vacuum pumps are available from Elmo Rietschle with optional variable speed drive.

Advantages:

Dry, contact-free operation

  • Process safe and reliable
  • No oil in the compression chamber
  • Frequency control available
  • Low sound level
  • Minimum maintenance
  • Applications:
  • Chemical
  • Environmental
  • Industrial applications
  • Medical vacuum pumps
  • Packaging
  • Pneumatic conveying
  • Printing & Paper
  • Woodworking
  • Wastewater treatment, aeration
  • Soil remediation
  • Router tables

Pinnacle Industries is your source for the industry’s most reliable claw vacuum pumps and claw compressors from Elmo Rietschle. We have a large selection of Elmo Rietschle claw compressor equipment to handle almost all of your vacuum pump or compressor requirements. You’ll find packaged vacuum systems from Elmo Rietschle utilizing the claw compressor technology for central vacuum system applications.

C-Series Vacuum Pumps

Operating Principle C-Series Claw Vacuum Pump

Much like rotary vane and rotary lobe pumps, the claw vacuum pumps and compressors of the C-Series are based on a static compression system. In contrast to rotary lobes, compression happens internally by volume contraction.

A claw vacuum pump consists of two rotors. They turn in opposite directions in a compressor housing without contact observing very tight clearances. They are synchronised via a precision gear. As the claw moves over the suction connection and the axial suction channel inlet the gas is sucked into the compression chamber.

As the rotors revolve, the gas moves from the suction side to the pressure side. Then it is compressed by the reduction of the volume between the rotors until the lower rotor uncovers the discharge channel. This “internal compression” leads to high differential pressures at efficiencies of more than 60 %. Afterwards the pre-compressed gas is discharged via the pressure connection. To remove the heat generated by the compression process, cooling air is sucked in between the compression housing and a silencing cover before it leaves the pump.

C-Series_vacuum_chart

C-VLR 60-500

C-VLR 1000

C-VLR 60-500
cseriesallvacHigh efficiency, dry and contact-free compression claw vacuum pump with capacities ranging from 60 to 1140 m³/hr (35.3 to 671 cfm). The maximum ultimate vacuum at continuous operation is up to 50 mbar (abs). Low maintenance, integrated air cooling without additional cooling medium, suitable for multiple applications. Flange mounted motors comply with DIN EN 60034, have IP 55 protection and insulation class F. Internal compression allows for low end pressure while using low power motors. At the same time the performance curve remains steady over its entire range. The C-VLR can be fitted with a frequency converter so that capacity and vacuum can be adjusted exactly to the requirements of the customer. Closed loop operation with inlet and outlet connected to the process is possible. See the C-VLR 60-500 data sheet.

Volume flow:

  • 60 to 1140 m³/hr
  • 35.3 to 671 cfm

C-VLR 1000
cseriesallvacHigh efficiency, dry and contact-free compression claw vacuum pump with capacities ranging from 60 to 1140 m³/hr (35.3 to 671 cfm). The maximum ultimate vacuum at continuous operation is up to 50 mbar (abs). Low maintenance, integrated air cooling without additional cooling medium, suitable for multiple applications. Flange mounted motors comply with DIN EN 60034, have IP 55 protection and insulation class F. Internal compression allows for low end pressure while using low power motors. At the same time the performance curve remains steady over its entire range. The C-VLR can be fitted with a frequency converter so that capacity and vacuum can be adjusted exactly to the requirements of the customer. Closed loop operation with inlet and outlet connected to the process is possible. See the C-VLR 1000 data sheet.

Volume flow:

  • 60 to 1140 m³/hr
  • 35.3 to 671 cfm