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Ultra Mini J Series Venturi Vacuum Generator

JS-40UM J-series cylindrical venturi vacuum generator
The JS-40UM (Ultra-Mini) cylindrical venturi vacuum generator is the smallest complete venturi vacuum generator that Vaccon offers. Incredibly compact and powerful – it measures the size of your finger tip and generates up to 27”Hg [914mbar]. Lightweight, quiet and cool operating, JS-40UM generators are ideal for confined spaces, where they can be mounted in-line near the point of use for rapid response.

The single-stage design allows ingested contaminants to flow through the generator without clogging ensuring continuous operation. Constructed of a single material, with no seals or moving parts, J Series generators are virtually indestructible. They can be manufactured in a variety of materials, making them ideal for use in adverse operating conditions. J Series generators provide a constant vacuum flow, rather than a fluctuating flow typically associated with diaphragm generators. They operate with an instantaneous response in pulsed applications or on a continuous basis.

The JS-40UM generator is used in the Vacuum Pencil KIt for benchtop pick and place operations of small objects.

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Features & Benefits
  • High performance - powerful vacuum up to 27”Hg [914mbar]
  • Lightweight – less than 1 oz. [28.3g]
  • Compact – 1.25” x .56”OD [31.75mm x 14.22 mm OD]
  • Input pressure from 5 PSI [0.34 bar]
  • Fast response – Mounts in-line, and installs close to vacuum point – no delay due to long plumbing lines
  • Efficient – Minimal air consumption, provides instantaneous vacuum as needed
  • Safe operation – No electricity needed Reliable – operates trouble-free:
    • No moving parts to wear or clog
    • No flap valves to stick open
    • No maintenance, no downtime
Ideal Applications
  • Gas sampling and analysis
  • Leak testing
  • Portion/ drip control (suck-back) for dispensing liquids
  • Liquid transfer
  • Pick & place for small, non-porous parts
  • Small vessel evacuation
  • Used as vacuum source for Vacuum Pencil Kit
Generator Options
  • Optional Silencer: VCF2-1032M
  • Choice of operating pressures to meet machine and factory air supply 80 PSI [5.5 bar] standard, 60 PSI [4.1 bar] optional
  • G port threads for metric machines – an “I” prefix designates products with metric threads
  • For chemical compatibility requirements, high temperature, food, medical and caustic applications, custom materials are available including stainless steel, PEEK, Delrin,™ Teflon,™ PVC.

Standard Specifications

JS-40UM Generator Standard Specifications
Generator Material: Anodized Aluminum , Silencer material -- Brass
Medium: Filtered (50 micron) un-lubricated, non-corrosive dry gases
Operating Temperature: -100° to ~400°F [-73° to ~204°C] (without silencer)
Operating Pressure: 80 PSI [5.5 bar] or 60 PSI [4.1 bar] – Consult Factory for other operating pressures
JS-40UM Operating and Installation Requirements
Vacuum and Supply Line: 5/32” O.D. [4mm] tube, 1/4” O.D. tube preferred for supply lines exceeding 3’ [1M]  
Vacuum Line Filtration: Not required  

Dimensional Data

Dimensional data for the JS-40UM Ultra-miniature Cylindrical Venturi Vacuum Generator is presented in 2D drawings, with all critical dimensions and port thread sizes displayed. Both imperial and metric units are included.

JS-40UM Series Dimensional Data


Performance Data

Performance data for the JS-40UM Ultra-miniature Cylindrical Venturi Vacuum Generator is displayed, listing air consumption, vacuum flow at various vacuum levels, and evacuation times (for 1 cu. ft. or 1 L volumes). Data is presented in tabular and graphed formats, in both imperial and metric units.

JS-40UM Performance Data 



Vaccon’s J Series cylindrical venturi vacuum generators are available in custom materials, sizes, shapes and connections to suit specific requirements or manufacturing environments, such as food processing, semiconductor or pharmaceutical manufacturing. Vaccon cartridges are available in brass, stainless steel (303, 304, 316, 316L), PVC, Teflon™, PEEK and Delrin® (Acetal). Please consult the factory.

Custom J Series Catalog Pages
3D Cad Files
Custom Products