Elmo Rietschle Claw Vacuum Technology

Elmo Rietschle C-VLR Rotary Claw Vacuum Pumps

High-efficiency dry-running rotary claw vacuum pumps for industrial vacuum applications. CompreVac supplies and supports the Elmo Rietschle C-VLR range from compact machine vacuum pumps through larger centralized vacuum systems.

Elmo Rietschle C-VLR rotary claw vacuum pump
Industrial vacuum technology supplied and supported by CompreVac.

Elmo Rietschle C-VLR pumps provide dry, contact-free industrial vacuum. CompreVac supplies C-VLR claw vacuum pumps together with application engineering, system design, replacement equipment, parts and service.

Dry-Running Claw Vacuum

Efficient Industrial Vacuum Without Contact in the Compression Chamber

Elmo Rietschle C-VLR vacuum pumps use two precision claw-shaped rotors that rotate in opposite directions without touching each other inside the compression chamber.

Gas is drawn into the machine and internally compressed as the available volume between the rotors decreases. Because the compression process is dry, no sealing fluid is required in the compression chamber.

The result is a robust vacuum technology well suited to continuous industrial operation, centralized vacuum systems and machinery requiring clean, dependable vacuum generation.

C-VLR Advantages

Why Choose Rotary Claw Vacuum Technology?

The Elmo Rietschle C-VLR combines internal compression with dry, contact-free operation for demanding industrial vacuum applications.

Dry Compression

No sealing fluid is required inside the compression chamber.

Non-Contacting Rotors

Precision gearing synchronizes the claw rotors without rotor-to-rotor contact.

Low Maintenance

Dry, contact-free compression minimizes routine wear within the vacuum chamber.

Integrated Air Cooling

The C-VLR range uses integrated air cooling without a separate cooling-water system.

Elmo Rietschle C-VLR Range

Dry-Running Industrial Claw Vacuum Pumps

Multiple C-VLR sizes allow CompreVac to match suction capacity and operating vacuum to machinery, process and centralized vacuum applications.

Elmo Rietschle C-VLR 60 claw vacuum pump
Elmo Rietschle C-VLR 60

C-VLR 60 Claw Vacuum Pump

The compact C-VLR 60 provides approximately 40 CFM of suction capacity for smaller industrial vacuum applications requiring dependable, dry-running operation.

Approx. 40 CFM capacity
Dry-running claw technology
Contact-free compression
Up to approximately 27"Hg vacuum
Integrated air cooling
Compact industrial design
Elmo Rietschle C-VLR 62 and C-VLR 122 claw vacuum pumps
Elmo Rietschle C-VLR 62 / 122

C-VLR 62 & C-VLR 122 Claw Vacuum Pumps

The C-VLR 62 and C-VLR 122 provide compact dry-running vacuum performance for industrial machinery requiring greater suction capacity while retaining contact-free claw operation.

Approx. 44 and 85 CFM
Dry-running vacuum
Contact-free compression
IE3 motor designs
Integrated air cooling
Low routine maintenance
Elmo Rietschle C-VLR 251 claw vacuum pump
Elmo Rietschle C-VLR 251

C-VLR 251 Claw Vacuum Pump

The C-VLR 251 moves into larger industrial vacuum duties and is particularly well suited to CNC router holding, woodworking equipment, packaging and other machine vacuum applications.

Approx. 150 CFM class
Deep industrial vacuum
Dry-running compression
Integrated air cooling
Low maintenance design
CNC router applications
Elmo Rietschle C-VLR 301 C-VLR 401 and C-VLR 501 claw vacuum pumps
Elmo Rietschle C-VLR 301 / 401 / 501

C-VLR 301, 401 & 501 Claw Vacuum Pumps

These larger C-VLR machines provide higher-capacity dry-running vacuum for industrial production equipment, woodworking, CNC router systems and centralized vacuum applications.

High industrial capacity
Dry-running claw vacuum
Contact-free compression
Integrated air cooling
Central vacuum capability
Industrial continuous duty
Elmo Rietschle C-VLR 1000 industrial claw vacuum pump
Elmo Rietschle C-VLR 1000

C-VLR 1000 Claw Vacuum Pump

The C-VLR 1000 extends Elmo Rietschle dry-running claw technology into high-capacity industrial and centralized vacuum systems requiring substantial continuous airflow.

Up to 1,000 m³/h class
Large industrial vacuum duty
Dry-running claw technology
Contact-free compression
Centralized system capability
Low routine maintenance
Claw Vacuum Operation

How Does an Elmo Rietschle C-VLR Vacuum Pump Work?

Two claw-shaped rotors turn in opposite directions inside the housing without contacting each other. Their synchronized motion draws air into the vacuum inlet, transports it through the chamber and internally compresses it before discharge.

Gas Enters Process air is drawn through the vacuum inlet into the compression chamber.
Claws Transport Air Synchronized claw rotors move the trapped gas through the pump.
Internal Compression The available volume decreases as the gas approaches the discharge.
Gas Is Discharged Pre-compressed process air exits through the exhaust connection.
Industrial Applications

Where Are C-VLR Claw Vacuum Pumps Used?

Dry-running claw vacuum technology is suitable for a broad range of machine and centralized industrial vacuum applications.

CNC Router Tables

Vacuum holding and clamping of sheet materials during CNC machining.

Woodworking

Clamping, holding, dust extraction and automated woodworking machinery.

Packaging

Vacuum handling, forming, evacuation and automated packaging equipment.

Printing & Paper

Sheet transport, folding, collating and post-press vacuum applications.

Central Vacuum Systems

One engineered vacuum source supplying multiple production machines.

Pneumatic Conveying

Vacuum transport of powders, granules and other process materials.

Elmo Rietschle + CompreVac

C-VLR Vacuum Technology From CompreVac

Elmo Rietschle manufactures industrial claw, rotary vane, screw, side-channel and liquid-ring vacuum and pressure technologies.

CompreVac supplies Elmo Rietschle C-VLR claw vacuum pumps with local application support, system engineering, replacement equipment, parts and service.

For a new vacuum installation, CompreVac can evaluate required suction capacity, operating vacuum, duty cycle, inlet conditions, filtration, controls and piping as part of the complete system rather than simply selecting a pump from a nominal airflow figure.

Frequently Asked Questions

Elmo Rietschle C-VLR Claw Vacuum Pump FAQs

What is a dry-running claw vacuum pump?

A dry-running claw vacuum pump uses synchronized claw-shaped rotors to move and internally compress gas without rotor contact and without sealing fluid inside the compression chamber.

Are Elmo Rietschle C-VLR vacuum pumps oil-free?

The compression chamber operates dry and does not use lubricating oil as the sealing or working fluid in the process gas path.

What sizes are available in the C-VLR range?

The C-VLR family spans compact machine vacuum pumps through large industrial models, including the C-VLR 60, 62, 122, 251, 301, 401, 501 and C-VLR 1000 ranges.

How much vacuum can a C-VLR pump produce?

The achievable continuous vacuum depends on the specific C-VLR model. Published C-Series literature shows maximum continuous vacuum down to approximately 50 mbar absolute for selected models.

Are C-VLR vacuum pumps suitable for CNC routers?

Yes. Rotary claw pumps are commonly used for CNC router table holding because they provide continuous industrial vacuum with dry-running, low-maintenance operation.

Can C-VLR pumps be used in a central vacuum system?

Yes. Larger C-VLR models can be incorporated into engineered central vacuum systems supplying multiple machines or production areas.

How do I select the correct C-VLR model?

Selection should consider required airflow at the operating vacuum, duty cycle, inlet conditions, piping losses, filtration and the complete vacuum system design.

Can CompreVac build a complete claw vacuum system?

Yes. CompreVac can integrate C-VLR vacuum pumps with filtration, receivers, controls, piping and other components as part of an engineered industrial vacuum system.

Does CompreVac service Elmo Rietschle vacuum pumps?

Yes. CompreVac provides industrial vacuum pump troubleshooting, replacement parts, field service and workshop repair support.

Need an Elmo Rietschle C-VLR Claw Vacuum Pump?

Speak with CompreVac about C-VLR rotary claw vacuum pumps, replacement equipment and complete industrial vacuum systems.

Call +1 905-624-4096

Elmo Rietschle
Rotary Claw Vacuum Pumps

The C-Series dry claw vacuum pumps of Elmo Rietschle generate contact-free vacuum or compressed air efficiently and economically. This is possible because of the principle of internal compression in the rotary claw design. The gas is pre-compressed within the compressing chamber and is then discharged.The Elmo Rietschle dry claw pumps offer significant energy saving and high efficiency compared to the traditional rotary lobe blower designs without internal compression.

Elmo Rietschle Claw Pump C-VLR60

  • Suction capacity of 40CFM
  • Ultimate vacuum at continuous operation 27"Hg (76Torr)
  • Passive and Active Cooling options available
  • Heavy Duty options available with ProCoat™ finish
  • 60 Hz Motor options; 1.5kW 1.8kW and 3kW

Elmo Rietschle C-VLR62 & C-VLR122

  • Suction capacity of 44CFM and 85CFM
  • Ultimate vacuum at continuous operation 27"Hg (75Torr)
  • Passive and Active Cooling options available
  • Heavy Duty options available with ProCoat™ finish
  • 60 Hz Motor ; 2.4kW and 4kW

Elmo Rietschle C-VLR 251

  • Capacity of 150CFM
  • The ultimate vacuum at continuous operation to 28.4"Hg
  • Low maintenance, integrated air cooling without additional cooling medium.
  • Ideal Vacuum Pump preferred by CNC Router Table Manufacturers.

Elmo Rietschle C-VLR 301, 401, 501

  • Capacities range from 206 to 353CFM
  • The ultimate vacuum for continuous operation is 24"Hg (152Torr)
  • Ideal Vacuum Pump preferred by CNC Router Table Manufacturers.

Elmo Rietschle C-VLR 1000

  • Capacities range from 206 to 353CFM
  • The ultimate vacuum for continuous operation is 24"Hg (152Torr)
  • Ideal Vacuum Pump preferred by CNC Router Table Manufacturers.