COVAL Intelligent Vacuum Pumps: ASR, ASC and Connected Families Review: Specs, Price and Applications
COVAL’s intelligent vacuum-pump portfolio combines compressed-air ejectors with different levels of control, monitoring and communication. The listed families include compact LEM/LEMAX units, communicating LEMCOM and LEMAX IO versions, and larger GVMAX HD or CMS HD configurations. The selection is fundamentally about leakage, evacuation volume and control behavior; the family names do not describe one common performance rating.
Quick Verdict
Consider this portfolio for suction handling where the pneumatic circuit and workpiece can be characterized. Air Saving Regulator (ASR) and Air Saving Control (ASC) are different functions. Electronic vacuum regulation can save compressed air on a sufficiently tight circuit, while a porous workpiece may require sustained flow rather than a repeated stop/start assumption.
COVAL Intelligent Vacuum Pumps: ASR, ASC and Connected Families at a Glance
Specification | Details |
Generation | Compressed-air vacuum ejector families; not equivalent to electric vacuum motors |
LEMP / LEM | Mini-pump families with ASR; integrated control differs by model |
LEMAX / LEMAX+ | ASC-equipped compact / higher-flow families |
LEMAX IO | IO-Link mini-pump configuration |
LEMCOM | Specified industrial-fieldbus communicating mini-pump family |
GVMAX HD / CMS HD | Heavy-duty communicating / multi-stage configurations |
Sizing basis | Leakage and evacuation curves at the selected nozzle, pressure and vacuum |
Design and Engineering Assessment
Separate vacuum level from suction flow. A pump’s maximum vacuum occurs under different conditions from its maximum free-air flow; combining both as a simultaneous operating point produces an unreliable selection. Read the curve at the required vacuum and actual compressed-air pressure, including circuit restrictions.
ASR pressure regulation and ASC vacuum control reduce consumption through different mechanisms. A tight workpiece can allow vacuum generation to pause after a threshold is reached. A leaking or porous workpiece may demand continuous replenishment, so savings depend on the entire suction circuit and duty cycle.
Fieldbus communication and IO-Link are not interchangeable interface labels. LEMCOM and LEMAX IO must be selected for the actual host and network arrangement. A digital pressure reading supports diagnostics, but a vacuum threshold alone does not prove that an accelerating load remains securely held.
Size at the Suction Cup
Measure workpiece leakage, cup seal behavior and evacuation time using the intended hose length and manifold. Select cup area and vacuum with the load direction, acceleration and required design margin included.
Specify nozzle, supply pressure, control-valve behavior, blow-off and monitoring together. Reduced compressed-air pressure, a blocked filter or a leak can change cycle time and retention.
Commission Controls and Loss Response
Configure vacuum-present thresholds, hysteresis and release timing for the actual product range. Verify communication, diagnostic handling and behavior after power, network or air interruption.
Evaluate air-saving behavior on both the tightest and most porous approved workpieces. Record the actual pump configuration and accepted process values rather than applying one family maximum to every pick.
Applications and Selection
Robotic pick-and-place, packaging and automated material handling with a characterized suction circuit.
For COVAL Intelligent Vacuum Pumps: ASR, ASC and Connected Families, define the actual machine duty before selecting an ordering configuration. Include the required operating point, available installation space, environment and control interfaces. The specification table describes the product or family; the surrounding machine determines which of those features matters for the intended job.
Price and Value
Request a quote for the exact pump, nozzle, valve/control type, communication and mounting. Include the compressed-air supply, cups, tubing, filters and required diagnostics.
Compare the installed pneumatic circuit at the same workpiece leakage, evacuation target and hold/release duty. Measured compressed-air consumption is more useful than assuming a universal saving from a family label.
Pros and Cons
Advantages
Several pneumatic control and communication arrangements
Compact and higher-flow families for different circuit needs
ASC supports demand-dependent generation in suitable sealed circuits
Limitations
Savings depend on workpiece leakage and duty
Family maxima are not simultaneous operating points
Interface and valve behavior vary by order code
Who Should Consider COVAL Intelligent Vacuum Pumps: ASR, ASC and Connected Families?
Consider this configuration when robotic pick-and-place, packaging and automated material handling with a characterized suction circuit matches a documented project requirement. Preserve the complete selected identity, interfaces and accepted operating procedure for commissioning and maintenance.
COVAL Intelligent Vacuum Pumps: ASR, ASC and Connected Families FAQ
Are these electric vacuum motors?
The reviewed families are compressed-air ejector systems; select their pneumatic supply and controls accordingly.
Are ASR and ASC identical?
No. ASR regulates supply pressure, while ASC controls generation against vacuum demand in applicable configurations.
Can maximum flow and vacuum be used simultaneously?
Do not assume so. Use the selected pump’s operating curve at the required vacuum.
Which listed family uses IO-Link?
LEMAX IO is the identified IO-Link mini-pump family; other communicating configurations require exact selection.
Does LEMCOM mean every industrial network is included?
No. Specify the actual supported fieldbus and delivered configuration.
Will ASC always save the same amount of air?
No. Leakage, workpiece porosity, circuit volume and cycle determine the result.
What should loss-of-air testing establish?
The actual retention and release response of the complete approved suction arrangement and its protective measures.
What belongs in a quote?
Nozzle, pressure, vacuum/flow duty, control valves, communication, cups, hoses, filters and mounting scope.
Prices are indicative and may change. Confirm the final configuration, commercial terms and delivery schedule before ordering.
