Category Archives: News

General news regarding the industry of sandblasting

CHOOSING A SANDBLASTING CABINET

Whether you’re searching a sandblasting cabinet for your shop or for your personal garage, there are several things to consider before purchasing this important industrial tool.

Sand blaster cabinets, also known as media blast cabinets or abrasive blasting cabinets, are metal boxes with openings, windows, and attached gloves which allow you to use sand or another abrasive media form, to smooth rough surfaces, remove imperfections in metal, and scrap of old paint or rust.

Yet, while all sandblast cabinets are made for the same general purposes, there are many different specifications.

Types of Sand Blasting Equipment

Sand blasting machines are made in a few different styles: standard, split-level, and portable. While all three styles operate in similar fashion and can use various types of blasting media, there are significant differences to each. Choosing which style will work best for you depends on how often you want to use your sand blaster and for what purposes.

Standard

These fixed cabinet blasters have openings in the front and on both sides of the machine. They’re great for working on small to medium sized objects.

Split-level

Split-level blaster cabinets are also fixed and have a hatch top that opens upward on a hinge to create a larger work space. These cabinets are useful when working on larger or heavier objects.

Portable

Portable sand blaster cabinets, sometimes called mini sand blasters, are perfect for working with smaller or more delicate objects because they allow your to make more detailed alterations. And, of course, benchtop sandblast cabinets are completely movable, making jobs outside of your workshop or garage possible. They offer remote control operation and are usually more inexpensive than other types of sandblaster cabinets for sale.

Once you’ve chosen the best sandblasting equipment style for your needs, the next decision you should make is whether you want to use a siphon cabinet or a direct pressure cabinet.

Types of Blasting Systems

The question here is how you want your machine deliver your abrasive media to the blasting nozzle.

Siphon Blasting Cabinets

Siphon cabinets, also known as suction cabinets, are best for light to occasion use, general cleaning and light production jobs. They use a gun to pull abrasive media into your blasting nozzle where it is then shot from the end of the nozzle. This requires the use of more air pressure than direct pressure cabinets because the delivery is a two-step process.

However, these systems are easier to use and install and are generally less expensive than direct pressure cabinets.

Direct Pressure Cabinets

These machines can expel abrasive media at a higher blasting flow rate than siphon blasting cabinets can because, unlike the siphon delivery, this system pushes the abrasive media out directly, making completing your jobs on average much faster. The direct pressure cabinets also allow you to lower and raise the pressure to customize the flow rate for each job you do.

Aside from these choices, there are other considerations too. Media blast cabinet details varies with each model and some have better features than others.

Details and Features

Here are some helpful tips and warnings to guide you through the details and specs of the blasting machines you’re considering.

Doors

If you’re buying a standard cabinet, make sure you know what material the cabinet doors are made of. Avoid cabinet blaster machines with plastic doors, which can warp and bow out easily and could lead to machine malfunction.

Air Compressors

Some Sandblast cabinets are sold with their own air compressor unit; however, not all are. If you’re thinking about purchasing a sandblast cabinet without an included air compressor, make sure to check the required PSI and CFM for your new sandblast cabinet to check if it with work with your current air compressor.

Construction

The metal used for frame and body construction also impacts the quality and durability of your sandblasting cabinet. While machines with lighter steel bodies are cheaper and work fairly well for occasional use, if you’re planning on using your blasting cabinet on a regular basis, you will need to invest in a machine with a sturdier construction, such as heavy gauge steel.

Lighting

Some cabinet blasters come with interior lighting. While this is not always necessary for daily use, if you want extra, focused lighting to help you in your detailed work, a sandblast cabinet with an interior light is ideal.

Assembly

Another, more humdrum consideration is whether the cabinet you’re purchasing is fully constructed or will require assembly. Sand blasting cabinets may require hours of assembly and the assembly could be quite complex, especially if you have no prior knowledge of how these machines are built and work.

So, once you’ve decided on the types of sandblasting cabinets and systems and thought about the specific features you want, you can start shopping the sandblasting machines for sale.

Personal Use

Before deciding on which type of sandblasting cabinet to purchase, you should ask yourself these questions to help you narrow your search and ensure you find the sand blasting machine that fits your needs:

· What do I want to use my sandblasting cabinet for?

· How often do I want to use my sandblasting cabinet?

· What is my price range?

· Where am I going to use my sandblasting cabinet?

Knowing the answers to these questions will greatly reduce the time you spend deciding between different sand blasting machines.

Conclusion

In the end, the perfect sandblasting cabinet for you is out there. You just need to think about what features, styles, and specification will work best for what you want to use your sand blast cabinet for!

 Next Step:  Buy Abrasive!

Share

Sandblasting Nozzle Sizing Chart

Use This Chart To Find Your Nozzle Bore Size:

  • #2 Nozzle has a 1/8″ orifice (3.2mm)
  • #3 Nozzle has a 3/16″ orifice (4.8mm)
  • #4 Nozzle has a 1/4″ orifice (6.35mm)
  • #5 Nozzle has a 5/16″ orifice (8mm)
  • #6 Nozzle has a 3/8″ orifice (9.5mm)
  • #7 Nozzle has a 7/16″ orifice (11.1mm)
  • #8 Nozzle has a 1/2″ orifice (12.7mm)
  • #10 Nozzle has a 5/8″ orifice (16mm)
  • #12 Nozzle has a 3/4″ orifice (19mm)

 

Share

Sandblasting Profiles: What abrasive should I use?

Anchor patterns are extremely difficult to approximate due to the many variables at play.  Use this information with Caution!  This is only an approximation.

The type of metal use in this example was hot rolled steel with tightly adhering mil scale.  The type and hardness of your substrate, how thick the scale is, the degree of cleaning you are attempting to achieve, experience and skill of the person performing the sandblasting, etc will all factor into your end result.

In this example, the pressure blasting was done using a 90-100 psi nozzle pressure.  The depth of the anchor profiles listed below are approximations only, and are on average.

1 Mil Profile:

1.5 Mil Profile:

2 Mil Profile:

2.5 Mil Profile:

3 Mil Profile

 

Share
Using Crushed Glass To Clean Precast Concrete

Crushed Bottle Glass Abrasive For Concrete

Armani Restoration Job SiteCrushed Bottle Glass Abrasive is used to clean and restore the exterior of this 27 story concrete building.  Using a proprietary wet and dry blasting system, the contractor dramatically changed the surface color of the building, as you can see in the photo.  The concrete surface of this building was not smooth – it did have a texture to it, so a medium grade was chosen.  The end result is a much brighter surface color to the concrete, without damaging the exterior.

Crushed glass sandblasting abrasive is the perfect choice for either light cleaning of precast concrete, or by using coarser grades, exposing the aggregate in the concrete.  A medium/fine grade was used for this job, as the customer did not want to damage the surface of the concrete.

Crushed bottle glass abrasive is a 100% recycled product, and is shipped from a variety of locations.  It contains no free silica, no heavy metals, is inert, and it blasts fast and clean.  Many times people will just leave it on the ground rather than clean it up (unless you are blasting off something toxic like lead paint or have local laws requiring cleanup).  This makes it great for blasting log homes and automobiles as it minimizes cleanup in areas where it can be left on the ground as a soil amendment.  Because this type of abrasive is shipped from all multiple points of origin, we will always try to find the closest location to your end job site when quoting.  NOTE:  If left on concrete it will be very slippery!

Share

Cleaning Bronze with Glass Bead Blasting

Here is a great video and article on glass bead sandblasting.

This company is using a fine glass bead to remove bronze patina from outdoor monuments, which restores them to their original state.  I would have liked to see some before and after photos of the monuments, but the article does contain a video clip where you can see (from a distance) the cleaned and uncleaned areas.

Workers from Sterling-based Mercer Lettering and Monument Works have been  sandblasting and pressure-washing the granite stonework over the past few weeks.  The granite stones also have been treated with an organic acid designed to  preserve the grass below while removing fungi from cracks in the stone.

On Thursday, they aimed nozzles at the bronze plaques and sprayed them with  fine glass particles. That removes the patina, or green and brown film, that has  developed on the metalwork over time without damaging the metal below it, said  Graeme Everson,  the company’s owner and a National Guard veteran.

“It brings back the shine of the bronze as it was when they put it up,” he  said.

The article does not discuss the size of the glass bead used, nor the exact machine they used, but the video shows the actual operator blasting.  You can therefore see the blast pot and the operator’s protective head gear which is useful for those just starting out and not familiar with protective gear.

To see the full original article by By ALISON SHEA of The Bulletin: Jewett City monuments gleam like new – Norwich, CT – The Bulletin http://www.norwichbulletin.com/news/x1474279320/Jewett-City-monuments-gleam-like-new#ixzz21poiW0in

© Copyright (c) ALISON SHEA The  Bulletin Originally Posted May 18, 2012

 

Share

Do It Your Self Sandblasting

Here is a fantasic business in Vancouver, B.C. that a couple of entrepenurs started recently. Do-it-yourself sandblasting! Now why didn’t I think of that?  Don’t we all have old furniture, rusted equipment, & gardening supplies that could use a facelift?

Everything from vintage metal toys and wooden chairs to bathroom tiles and car parts are being scoured clean at a Victoria do-it-yourself sandblasting company.

Customers pay $1 per minute (minimum 15 minutes) to blast their items, or $1.35 per minute (minimum 20 minutes) for a staffer to do the work at Blast It!, located in the Hillside industrial area at 2639 Turner St.

It’s easy. An item is placed inside a self-contained cabinet. Once the door is locked, a customer standing outside the cabinet slips his or her hands into heavy duty gloves which run into the interior. Turn on the control with your foot, point the nozzle of the wand at the item and the blasting starts. Continue reading

Share