Kalbro Manufacturing Co

Conveying Vacuum Pumps

Conveying Vacuum Pumps

We are one of the eminent Manufacturers, Exporters and Suppliers of A Conveying Vacuum Pumps. Our entire range is renowned for features like robust structure, high sensitivity, accuracy, durability and long shelf life. Produced using premium raw materials under the supervision of highly experienced personnel; our Conveying Vacuum Pumps guarantee optimum functionality.


Applications :

  •     Transfer Materials
  •     Sledge Removal in Trimming Operation
  •     Coney Wheat and Corn
  •     Transfer Powder
  •     Detergent and Plastic Powder
  •     Chip Removal in Drilling Operation
  •     Dust Removal in Grinding Operation


How is Vacuum Produced ?

There are two basic ways of producing vacuum. The most widespread method is to use an electric-motor-driven, positive-displacement pump, Typical Electric Motor Driven Vacuum Pump System

The second method of producing vacuum is by using a no-moving-part venturi, also known as vacuum generators and ejectors. compressed air is allowed to flow which causes a venturi action. As the air expands and flows into the receiver tube, it creates a pressure lower than atmospheric pressure. This causes entrainment of the surrounding air which is more commonly referred to as vacuum flow. The entrained air, as well as the supply air, exhausts into the atmosphere

When To Use An Electric Motor Driven Vacuum Pump Versus A Venturi :

The application determines which one of the two methods is better suited. Though most applications can use vacuum from either one of the sources, one will clearly outweigh the other depending upon the design and application requirements from the point of view of cost, space, temperature etc. In general the following are the advantages of using venturi vacuum Pumps:

  •  Fast cycling : Since there are no moving parts and the time to establish vacuum is low, venturis are ideally suited for fast cyclic applications such as pick & place, labeling, etc.
  •  Temperatures : Venturis can operate over a wide range of temperatures, especially at high temperature applications.
  • Corrosive environments : Since venturis can be made out of a wide range of materials and there are no moving parts, they are well suited for corrosive environments.
  •  Noise levels: The only noise generated by venturis is due to air flow and can be minimized by using noise reducing mufflers.
  •  Contamination: Venturis, especially the single stage venturis, are quite insensitive to contamination. Even if particles are introduced into the device, they can be cleaned with relative ease.
  •  Maintenance: Since there are no moving parts associated with venturis, they are practically maintenance free.
  •  Ease of mounting: Since venturis are quite compact, they can be mounted very close to the work station. This makes them very attractive for integrating them as a part of the end-of-arm tooling. As this minimizes the length of vacuum line, the size can be smaller than if they were mounted at a distance.
  •  Lower Cost: Due to their simplicity, the venturis are low cost components.

When Is A Venturi Undesirable?

  • One of the basic requirements of a venturi vacuum pump is compressed air driven. If compressed air is not available, an electric vacuum pump is the only alternative.


  • If constant vacuum flow is required, venturis may not be the most efficient device compared to Electric Motor Driven vacuum pumps. Also if the application requires a large vacuum flow at high vacuum, an Electric motor driven vacuum pump may be more energy efficient than a venturi.

Technical Specifications

Model Air Velocity (ft/s) Vacuum Flow(l/m) Vacuum Level(-kpa)
Air Consumption(lpm)
2.8Bar 5.5Bar
KCPF-3 485 295 26 85 160
KCPF-3A 328 425 16 95 170
KCPF-6 361 870 35 395 680
KCPF-6A 325 1825 28 790 1365