Standard Features:

  • PD-01 Basic Digital Control Panel
  • Stainless Steel Construction
  • Stainless steel lid with view port
  • Bladder Activated Sealing
  • Busch RB0021(1.25HP) Vacuum Pump
  • Air Assist Sealing
  • 6mm Seal Wire or Electric Cut-Off Seal Bar


  • PNC-01 Microprocessor Control
  • Soft Air
  • Bi-Active Seal
  • Gas Flush System
  • Twin Beam Sealing
  • Larger Capacity vacuum Pump

Please note: Specifications are subject to change without notice




Promarksvac’s model SC-520LR is one of our most popular single chamber vacuum chamber sealer models. The “LR” in the model number lets you know that this machine features a two 21” seal bars one on the left and one on the right of the vacuum cavity area. Like all Promarksvac chamber vacuum sealers this machine is ETL tested, certified and labeled as meeting UL and CSA safety standards for packaging equipment as well as NSF sanitary standards. This rugged functional machine utilizes an all # 304 stainless steel housing, lid, with a viewing port, and vacuum cavity. It features a Busch (model RB0021) vacuum pump for reliable and powerful vacuum performance. This model can also be upgraded to a Busch RA0040 vacuum pump for increased performance (220V/3PH power required). The standard PD-01 basic digital control panel allows the operator to quickly set the parameters for vacuum time, gas flush time (with optional gas flush system), seal time and cooling time with the accuracy of a digital readout. If your application requires more advanced control then the optional PNC-01 microprocessor based control panel may be just what you need. The PNC-01 allows for the vacuum to be controlled via time or vacuum pressure and also includes a 14 recipe memory, soft air venting as well as multi-stage gas flush capability just to name a few of the control options it offers the operator. This model comes standard with filler plates that help place the package being sealed at the proper height as well as cut down the cycle time for small packages by forcing excess air out of the vacuum cavity. An optional slant tray can replace the filler boards if you are working with a product that will have liquid inside the package. Other options such as a gas flush system, bi-active seal system and 220V/1PH power allow the SC-520LR to handle a wide variety of applications. The model SC-520LR is also available with the optional “Precise Seal” fully validate able PLC/HMI based control system.

Promarksvac has sold SC-520LR machines for the following applications:

  • Sous Vide
  • Pharmaceutical Lab applications
  • Test kitchens
  • Electronic dry pack applications
  • Pet food packaging
  • Markets & Delis
  • Many more

Call us today to arrange for a vacuum sealed sample of your product!


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