Author: Al Wooffitt

The Ultimate Guide to the EXAIR Heavy Duty HEPA Vac

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In high-dust industrial environments, ordinary electric shop vacs often fall short. They clog quickly, motors burn out from constant use, and they can even return fine particles back into your breathing air. The EXAIR Heavy Duty HEPA Vac offers a rugged, air-powered alternative designed specifically for these harsh conditions.

What is the EXAIR Heavy Duty HEPA Vac?

The EXAIR Heavy Duty HEPA Vac is a powerful industrial vacuum that turns an ordinary 30, 55, or 110-gallon open-top drum into a high-capacity HEPA-grade cleaning system. Unlike standard vacuums, it has no moving parts and uses only compressed air to generate a powerful vacuum, reaching levels of -60” H2O at 80 PSIG.

Key Benefits for Industrial Cleanup

  • Maintenance-Free Durability: With no motors to wear out or bearings to fail, this system is built to last for years rather than months. Its hardened steel alloy construction specifically resists abrasion from heavy materials.
  • Certified HEPA Filtration: Every filter is tested to meet HEPA standards, capturing 99.97% of particles as small as 0.3 microns. This ensures that fine dust and contaminants stay in the drum and out of the air.
  • Safety First: Operating on compressed air eliminates the risk of electric shock. It also includes a static-resistant hose to prevent painful shocks when handling dry, dusty materials.
  • Quiet Operation: At only 82 dBA, it is roughly half as loud as many electric vacuums, creating a safer and more comfortable work environment.

Popular Applications

This vacuum is ideally suited for:

  • Abrasive Media: Handling shot blast media, sand, and steel shot without internal wear.
  • Fine Dust Control: Ideal for drywall refinishing, pulverizer maintenance, and mold removal.
  • Critical Cleaning: Removing allergens, industrial contaminants, and irritants from shop floors.

Available Systems

EXAIR offers three main system configurations to suit your facility’s needs:

  • Standard System: Includes the vacuum generator, lever lock lid, filters, and hoses.
  • Deluxe System: Adds a drum dolly and a variety of heavy-duty aluminum cleaning tools like wands and floor tools.
  • Premium System: Includes everything from the Deluxe package plus a 30, 55, or 110-gallon drum.

Pro Tip: To extend the life of your HEPA media, consider the optional Model 901373 filter protector, which slides over the filters to trap larger particles before they reach the main media.

If you would like to discuss whether EXAIR’s Heavy Duty HEPA Vac would be a good fit for your application, give us a call!

Al Wooffitt
Application Engineer

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Revolutionize Your Internal Pipe Cleaning with EXAIR Back Blow Nozzles

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In industrial manufacturing, cleaning the inside of pipes, tubes, and blind holes has traditionally been a challenge. Standard forward-blowing nozzles often push debris deeper or create safety hazards by ejecting material out the far end. EXAIR solved this problem with their innovative Back Blow Air Nozzles, designed specifically to “wipe” internal surfaces clean by directing airflow backwards toward the operator.

How They Work

These nozzles utilize the Coanda effect to amplify compressed air, entraining surrounding ambient air to create a high-velocity 360-degree cone of air. Because the air is directed back toward the inlet, it pulls coolant, chips, and debris out of the opening rather than forcing them further in.

See the “Back Blow Magic” in Action

Watch this EXAIR video demonstration to see a Back Blow Nozzle clear debris from a plugged pipe in a single pass.

Common Applications

Manufacturers across various industries use these nozzles to improve efficiency and safety. Typical uses include:

  • Machined Part Cleaning: Removing coolant and metal chips from blind holes or internal threads.
  • Hydraulic Cylinder Repair: Cleaning honed bores ranging from 2″ to 16″ in diameter.
  • Tube & Pipe Manufacturing: Clearing debris from long lengths of pipe where forward blowing is impractical.
  • CNC Machining: Quickly cleaning out spindles between tool changes.
  • Electronics Recycling: Removing residual powder from spent toner cartridges.

Key Product Features

  • Material: Manufactured from durable Type 316 Stainless Steel for superior corrosion and wear resistance.
  • Size Range: Available in three sizes—M4, 1/4 NPT, and 1 NPT—covering internal diameters from 1/4″ to 16″.
  • Safety & Compliance: Meets OSHA standards for noise and dead-end pressure.
  • Configurations: Can be mounted on VariBlast, Soft Grip, or Heavy Duty Safety Air Guns with extensions up to 72″ and optional chip shields for operator protection.

Would you like to know which Safety Air Gun model or extension length is best suited for your specific pipe diameter? Give us a call!

Al Wooffitt
Application Engineer

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The Power of Precision: Why EXAIR’s Adjustable E-Vac is a Game Changer

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When designing a vacuum system, the “one-size-fits-all” approach rarely works. EXAIR offers two primary types of single-stage vacuum generators: the In-Line E-Vac and the Adjustable E-Vac. While both use a venturi design to create instantaneous vacuum without moving parts, choosing between them depends on how much control and “forgiveness” your application requires.

The primary difference lies in versatility and internal geometry. In-Line E-Vacs are compact, cylindrical units designed for specific, unchanging tasks.

  • Variants: They come in “High Vacuum” models for non-porous materials (like glass or steel) and “Low Vacuum” models for porous materials (like cardboard).
  • Limitation: Once you choose a model, its performance is fixed.

Adjustable E-Vacs allow you to “dial in” the exact vacuum level and flow rate needed.

  • Versatility: By loosening a locknut and turning the exhaust, you can shift the unit’s performance to handle different weights or surface porosities.
  • Durability: They feature a much larger throat diameter, which allows them to pass small solids, dust, and even liquids without clogging.

The Choice: Why Go Adjustable?

The Adjustable E-Vac is the superior choice when your production line handles either variety, or potentially contains contamination. For facilities that use a robotic arm to pick and place various items from a conveyor depending on the job, you would potentially need more than one style of In-Line E-Vac. For example, if one job requires lifting heavy, non-porous plastic containers, you would need a high-vacuum, low-flow unit; whereas if the next job is handling lightweight, porous cardboard boxes, this would require a low-vaccum, high-flow unit.

By choosing the Adjustable E-Vac, you can tune for porosity: Increase the vacuum flow with a quick adjustment to overcome the “leakage” inherent in cardboard. In addition to this, if the surface is less than pristine, the larger throat diameter will have no trouble passing the dirt and debris.

If you’re ready to integrate these tools, several kits and individual units are available:

  • EXAIR Adjustable E-Vac Vacuum Generator 840008: A compact 8 SCFM model, ideal for smaller pick-and-place tasks.
  • EXAIR Adjustable E-Vac Vacuum Generator 840015: A mid-range 15 SCFM unit for higher flow requirements.
  • EXAIR E-Vac Adjustable Vacuum Generator Deluxe Kit 842030: A complete solution including the pump, an assortment of vacuum cups, tubing, a filter separator, and a pressure regulator.
  • EXAIR E-Vac Deluxe Kit 842060M: A high-capacity 62.7 SCFM kit featuring a straight-through muffler, perfect for environments with heavy particulate.

If you would like to find out more, give us a call!

Al Wooffitt
Application Engineer

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Stop Starving Your Tools: How to Beat Pressure Drop in Compressed Air Systems

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If you’ve ever noticed your pneumatic tools losing their “punch” or your machines throwing low-pressure faults, you’re likely dealing with the silent thief of industrial efficiency: pressure drop.

Pressure drop is the reduction in air pressure from the compressor discharge to the actual point of use. It’s not just a performance issue; it’s an expensive energy drain. Most facilities try to fix it by cranking up the compressor pressure, which is like trying to fix a leaky garden hose by turning the spigot up—it just wastes more energy and stresses the system.

Here is how to tackle it and how EXAIR products help you win the fight.

1. Size Matters (The Piping Dilemma)

The most common cause of pressure drop is undersized piping. Think of your compressed air system like a highway; if you try to cram 1,000 cars into one lane, traffic slows down.

  • The Fix: Always size your main headers and distribution lines for the maximum potential flow, not just your current average. Using a “loop” system instead of a single “dead-end” header allows air to flow in two directions to reach a high-demand tool, effectively doubling the capacity of the pipe.

2. Smooth Out the “Plumbing”

Every elbow, tee, and valve creates friction. Standard plumbing fittings often have sharp turns that create turbulence, slowing down the air.

  • The Fix: Minimize the use of 90-degree elbows where possible (use long-radius sweeps instead) and ensure you aren’t using restrictive, undersized quick-connect couplings at the tool.

3. Eliminate the “Spiky” Demand

Large, intermittent air consumers can cause the pressure in the entire line to “sag.”

  • The Fix: Use a receiver tank (surge tank) near the point of high demand. This acts as a local battery, providing the necessary volume instantly without pulling from the main header and causing a system-wide drop.

How EXAIR Combats Pressure Drop

EXAIR is built on the philosophy of “doing more with less.” Our products are engineered specifically to maximize force while minimizing air consumption, which is the most effective way to reduce pressure drop at the end of the line.

Engineered Super Air Nozzles

EXAIR Nozzles

Standard “open pipe” blowoffs are air hogs. They create massive localized pressure drops because they dump huge volumes of air inefficiently. EXAIR Super Air Nozzles use a small amount of compressed air to entrain large volumes of surrounding “free” room air.

  • The Result: You get high-velocity discharge with significantly lower compressed air demand, keeping the pressure stable for the rest of your tools.

Digital Flowmeters

You can’t fix what you can’t measure. EXAIR Digital Flowmeters allow you to see exactly where the air is going in real-time. By monitoring different zones of your plant, you can pinpoint exactly which branch or machine is causing the pressure drop, making it easy to identify leaks or bottlenecks.

Precise Pressure Regulators

Using more pressure than a process requires (artificial demand) is a leading cause of system-wide drops. EXAIR Pressure Regulators ensure that each application gets exactly the PSI it needs and nothing more. By lowering the pressure at the point of use to the minimum required, you preserve the “headroom” in your main lines.

The Bottom Line, combating pressure drop is about velocity and volume. By optimizing your piping layout and switching to high-efficiency end-use products like our intelligent, point-of-use compressed air products, you stop starving your tools and start saving on your electric bill.

If you’re ready to stop turning up the compressor, and start fixing the flow, give us a call!

Al Wooffitt
Application Engineer

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