May 01

From MAX VAC to DEMARCO: Evolving Vacuum Technology and Honoring Origins

From MAX VAC to DEMARCOThe DeMarco Family has been the leading patented innovator in industrial vacuum technology since 1968, but it wasn’t until recently that the vacuum line’s name reflected its inventor, Thomas DeMarco Sr. The current DEMARCO® Vacuum Line is the third generation of industrial vacuums from the DeMarco Family. Each generation of vacuums improved the wet/dry material collection process as the company has always been dedicated to providing their customers with high performance and superior quality products.

From MAX VAC to DEMARCOMAX VAC® was the second generation of industrial vacuums from the DeMarco Family. The line was launched in 1986 and revolutionized the vacuum industry with the addition of the Patented DEMARCO® 3-Stage, 2-Compartment Laterally Offset Cyclonic Material Separator Circuit and DEMARCO® Silencer Base® Muffler. The vacuums also implemented the pleated cartridge filter technology for the first time in the industry, an additional feature that enhanced the vacuum’s overall performance and simplicity of design. Overnight, the bag-type vacuum filter became obsolete.

From MAX VAC to DEMARCOCommitting to his father’s innovative spirit, Thomas DeMarco Jr., President and Senior Engineer, improved and enhanced their industrial vacuum line again in 2010. This latest design has more advanced performance features including greater filter efficiency and improved filter air-to-cloth ratio, as well as a new aesthetic low-profile and exclusive compact design. In addition to these new developments, the line was also renamed DEMARCO®. The new vacuum name honors the company’s founder, Thomas DeMarco Sr., the industry pioneer who dedicated his life to the continual improvement of vacuum system technology.

Today, the DeMarco Family, now in its third generation of vacuum engineers, continues to be the innovative leader in the development of superior vacuum designs worldwide.

The DEMARCO® Vacuum can also be customized to work in a wide variety of material collection applications. To learn more, visit the Technology and Performance page today. DEMARCO® – Vacuums Built for Industry™

Apr 07

5 Ways DEMARCO Vacuums Revolutionized the Vacuum Industry

stationary industrial vacuum T1000Did you know that for more than 45 years, DEMARCO Vacuums has been a groundbreaking pioneer in the field of advanced vacuuming technology? It’s true.

Founded by inventor and industrialist, Thomas M. DeMarco, DEMARCO Vacuums holds numerous US, Canadian and other foreign patents related to vacuum technologies. More than just an industrial vacuum systems manufacturer, DEMARCO holds more patents than any other competitor in the industry—and this innovative spirit continues today.

DEMARCO Vacuum’s revolutionary industrial vacuum technologies have changed the way people approach industrial cleaning jobs. Check out some of their patented technologies!

  1. High Suction Vacuums With Positive Displacement Pump Technology: Thomas M. DeMarco patented the original large-scale industrial cleaner using high suction and positive displacement pumps to the marketplace in 1968 for the foundry industry worldwide.
  2. Bag-Type Filter Technology: Also first utilized by Thomas M. DeMarco in 1968, this now outdated technology is still being used today on many competitor systems with either a manual shake or continuous air-pulse jet cleaning method.
  3. Patented Laterally Offset 3-Stage 2-Compartment Material Separation Circuit: Exclusive to DEMARCO Vacuums, this technology ensures absolute minimal material carryover which greatly increases vacuum efficiency and performance.
  4. Pleated Cartridge Filter Technology: Forever changing the vacuum landscape, DEMARCO was the first to introduce and use pleated filter technology in 1986. Featured in the newly patented DEMARCO Vacuum line, competitors who use pleated cartridge filters today do so thanks to DEMARCO’s innovation.
  5. Patented Silencer Base® Muffler Technology: Another exclusive DEMARCO feature, this technology’s newly improved design provides unsurpassed low decibels. It’s compact and aesthetic design makes it a superior option to competitor offerings.

DeMarco Industrial Vacuum Corporation continues its tradition of high quality manufacturing today with new and exciting innovations. Their team of skilled Engineers is ready to serve you. Contact DEMARCO Vacuums today to learn more about their products, services and capabilities.

Mar 24

Overview of the DEMARCO Portable Industrial Vacuum Systems

demarco vacuum controllerDEMARCO® has introduced unmatched patented technology which has lead the industrial vacuum systems industry for over four decades. DEMARCO’s Portable Industrial Vacuum Line features a new low profile compact design as well as an exclusive 3-Stage, Two Compartment Material Separation Cyclonic Circuit and the DEMARCO® Silencer Base® Muffler. Built for extremely heavy-duty applications for both indoor and outdoor usage, DEMARCO’s portable vacuums range from 15 HP to 250 HP. These systems will collect nearly any wet/dry materials – from the heaviest, most abrasive to the finest of powders – without interruption.

DEMARCO’s Competitor vacuums have their material separators located directly under their filter compartment resulting in:

  • High Dust Velocities and High Material Carryover to Filters
  • High Workload and Wear on the Filters
  • Expensive Maintenance and Timely Labor
  • Substantial Material Build-Up into the Filter Chamber
  • Shortened Vacuum Pump Life

Material collection hopper sizes are available from 1/3 up to 3 cubic yard capacities. Adding an optional Powerhead Air-Lift Circuit makes for quick and easy material collection hopper sealing. Here’s an overview of the DEMARCO Portable Industrial Vacuum models:

DEMARCO® 1000 Series Portable Industrial VacuumsDEMARCO® 1000 Series Portable Industrial Vacuums

  • 15 HP to 30 HP Drive Packages
  • 1/3 to 3 Cubic Yard Collection Hoppers
  • Vacuum up to 265 Lbs. per Minute
  • Positive Displacement Blowers up to 17″ Hg (Mercury)
  • Up to 790+ CFM

DEMARCO® 2000 Series Portable Industrial VacuumsDEMARCO® 2000 Series Portable Industrial Vacuums

  • 25 HP to 50 HP Drive Packages
  • 1/2 to 2-1/2 Cubic Yard Collection Hoppers
  • Vacuum up to 465 Lbs. per Minute
  • Positive Displacement Blowers up to 27″ Hg (Mercury)
  • Up to 1150+ CFM

DEMARCO® 4000 Series Portable Industrial VacuumsDEMARCO® 4000 Series Portable Industrial Vacuums

  • 40 HP to 150+ HP Drive Packages
  • 1-1/2 to 2-1/2 Cubic Yard Collection Hoppers
  • Vacuum up to 48 Tons per Hour
  • Positive Displacement Blowers up to 27″ Hg (Mercury)
  • Up to 3410+ CFM

Additional options for our Portable DEMARCO® vacuums include over-the-road trailer mounted or in-plant towable packages. Even more, this vacuum line can be connected to a central manifold system with multiple pick-up point connections allowing multiple users simultaneously for even faster cleanups.

Jan 04

OSHA Dust Classifications and Industrial Vacuum Systems

The health and safety issue of combustible dusts reached its apex back in 2009, when the Occupational Safety & Health Administration (OSHA) released their National Emphasis Program NEP on combustible dust. The NEP was released in order to focus attention on the agency’s efforts to mitigate dust-related explosions. Part of the NEP standard 1910.307(b) posted stipulations about the use of electric industrial vacuums in areas where combustible dust accumulates. This standard is defined by NFPA 70 from the National Electrical Code.

An explosion proof industrial vacuum / dust ignition proof vacuum or a combustible dust safe pneumatic industrial vacuum should meet requirements for use in the OSHA dust classifications of: Class 1, Group D and Class II, Groups E, F, and G.

For more information on industrial vacuum filters, including how to select the right media for the material you are picking up, please contact us or visit the DEMARCO Vacuum Accessories page.

Summary of Class I, II, III Hazardous Locations*






I Gases, vapors, and liquids (Art. 501) A: Acetylene
B: Hydrogen, etc.
C: Ether, etc.
D: Hydrocarbons, fuels, solvents, etc.
Normally explosive and hazardous Not normally present in an explosive concentration (but may accidentally exist)
II Dusts (Art. 502) E: Metal dusts (conductive,*and explosive)
F: Carbon dusts (some are conductive,* and all are explosive)
G: Flour, starch, grain, combustible plastic or chemical dust (explosive)
Ignitable quantities of dust normally are or may be in suspension, or conductive dust may be present Dust not normally suspended in an ignitable concentration (but may accidentally exist). Dust layers are present.
III Fibers and flyings (Art. 503) Textiles, wood-working, etc. (easily ignitable, but not likely to be explosive) Handled or used in manufacturing Stored or handled in storage (exclusive of manufacturing)

These industrial vacuums should include vacuum features such as motor, switches, filters, and inner chambers that are designed specifically for use in combustible dust applications or situations. In addition, an explosion proof vacuum should have a graduated filtration system that traps and keeps the combustible dust particles from moving out of the equipment back into the air. A HEPA filter is most often used in order to clean the exhaust of the vacuum. High quality HEPA filters provide a strong defense for prevention of small dust particles escaping back out into the air.

For companies that must regularly handle the removal of combustible dust, an explosion proof industrial vacuum is a smart investment. Before purchasing, however, research is a must – ensuring the right machine is matched to each specific situation. When matched properly, the right machine can be matched to the needs of the company in question, ensuring proper plant safety.

Dec 09

America’s Engineering Hubs

America's Engineering HubsEngineers have long held a critical role in the nation’s ability to innovate, having found creative solutions to crucial problems and developed effective ways to harness technologies to put previously impossible accomplishments within reach. So, it isn’t unreasonable to expect the greatest capacity for innovation will be in areas with sizeable concentrations of engineers.

Forbes recently compiled a list of the top 10 engineering cities in the United States. Whether the metropolitan areas listed specialize in IT, energy or manufacturing, Forbes’ findings reveal that the “regions with higher concentrations of engineers tend to do better, and seize the leadership of key industries.”

San Jose/Silicon Valley topped the list as America’s top engineering hub. Totaling 40,4000, the region’s ratio of 45 engineers per 1,000 employees is twice as high as any other big metro area. The second city on the list is Houston, Tex., the world energy capital. Home to 59,000 engineers, Houston has a concentration of 22.4 engineers per 1,000 employees. In the third spot, driven by aerospace manufacturing, is Wichita, Kan., with 21 engineers per thousand employees and 5,870 engineers in total.

“These top three engineering cities tell us much about the source of American innovation, and the remarkable diversity that makes this country an engineering powerhouse,” Forbes explained. “It involves three essential industries — information technology, energy and manufacturing. Each has a distinct geographic makeup that reflects differing kinds of engineering talent.”

In separate findings, a new report from the National Science Foundation indicates that “intensity employment” – the proportion of workers in a state that is employed in science and engineering jobs – is highest in the District of Columbia, followed by Maryland and Massachusetts.

Much as Silicon Valley became the center of the tech revolution, many metropolitan areas are beginning to see clusters of engineers, whose ingenuity and capacity for innovation will no doubt set a path for the future.