EXAIR Heavy Duty Line Vac Re-Loads Rainfall Sander

In the world of lost wax casting a wax pattern is created and then fused to a wax runner system along with multiples of other patterns or perhaps the same pattern. Once the “tree” of wax patterns is created, the tree is coated with a fine material to reproduce fine details in the pattern and is then “stuccoed” with a coarse, ceramic material. It is this application of the coarse ceramic material process with which my most recent customer needed help. It was not so much the application of the ceramic material to the wax pattern but the refilling of the rainfall sander which is the tool that actually applies the ceramic to the patterns. Below is a photo of a rainfall sander for your reference.

 As you can see a fine, water fall-like flow of sand dropping down from above provides the means for the stuccoing process.
The problem is that the hoppers for these machines can be in excess of 7 feet above the floor and require replenishing. The idea is to put just the right amount of material into the hopper without overfilling which has been a problem in the past with the customer dumping by hand over-head.
The solution the customer was looking for was the 1-1/2” Heavy Duty Line Vac to be used in a moveable cart-based hopper filling tool with a gallows-type over arm which can be placed above the hopper of each machine to provide the metered filling.

 

The reasons for picking the Heavy Duty version of the EXAIR Line Vac was for its robust resistance to abrasion from high speed materials moving through the throat area. Heavy Duty Line Vac is made of a high grade, tool steel with a proprietary surface treatment to harden the material even further to make the unit highly resistant to abrasion. The Heavy Duty Line Vac has been used with such materials as silica sand, ground glass and ground garnet for hopper replenishment in abrasive blasting applications, so it could handle the stucco material quite nicely. The higher conveying capacity of the Heavy Duty Line Vac also made quick work of the material being conveyed to make for unobtrusive service. 

Contact:

Mr. Durga Madhab Praharaj - Sales & Opearations Manager.
Mob : 097404 39220. E -mail : durga@vivekengineers.net 

Website:  www.vivekengineers.net

Air Nozzle System

One of our Customers required Plunger cleaning 

Customer was using open tube for air blowing for long duration. It was consuming more air for cleaning and it was noisy too. The Plunger is around 4” circular and the inner bore ¼”. Customer needs to drain out oily plunger after lifting it out from oil bin. They need to clean exterior and interior bore simultaneously in 2 to 3 seconds cycle at 4 to 4.5 Bar pressure.

Pneumatic solution

We have made an Air Nozzle System which includes 1122- 2” Flat Super Air Nozzle for exterior cleaning and 1109ss-Pico Super Air Nozzle for inner bore 360˚ cleaning. We have made a system when foot pedal valve is turned on the Air Nozzle it will blow enough force to get plunger cleaned as per customers desired cycle i.e. 2 to 3 seconds, the plunger got drained out from oil for further Pneumatic/Dry test. The Air Nozzle system which we have mounted in closed cabin prevent oil splashes around drying area and the drained oil which falls on the sponge which have placed inside the closed cabin, the drained oil is recollected into oil bin on every shift.

Advantages

1. The Air Nozzles are OSHA Certified and consumes less air. So the air deliver will be 25 times more.
2. Less Noise as per OSHA requirement
3. Drain oil can be collected.
4. The Super Air Nozzle system is maintenance free.
5. Uses of Super Air Nozzle will save Compressed Air energy. So, the investment can be recovered in a sort span of time.

Contact:

Mr. Durga Madhab Praharaj - Sales & Opearations Manager.
Mob : 097404 39220. E -mail : durga@vivekengineers.net 

Website:  www.vivekengineers.net

EXAIR Atomizing Nozzle Replaces High Pressure Pump Sprayer in Application

Our customer in the automation / tool making industry has a need to spray a mold release type agent onto some specialized tooling they have developed and are testing. Originally, the customer had planned to use some sort of pressurized sprayer similar to those used in a garden. After some initial tests to prove the concept, the customer found that the moving mechanical parts of the sprayer became fouled by the release agent. And cleaning the internal parts was not easy to do.

In their search for a more permanent solution, the customer came across EXAIR Atomizing Nozzles. After going through some application type questions to narrow the focus down to one model, we determined that the customer would be best served by model AF1010SS (Internal Mix, Flat Fan Pattern Atomizing Nozzle). The customer had a couple of questions about the nozzle in order to gain some acceptance of the recommendation.

1. Is it possible to disassemble the nozzle and clean it completely?  The answer is yes, the Atomizing Nozzles can be completely disassembled to allow for cleaning, maintenance or replacement of worn parts. 
2. Are the nozzles solvent resistant? The answer is also yes; the Atomizing Nozzles are made of AISI303 type stainless steel and can be cleaned with any normal solvent based cleaner.

Earlier in this article, I mentioned that we went through some application type questions. Here is a list of general questions that we normally ask a customer about their application in order to determine which in our selection would be best suited.

1. What is the volume of liquid flow needed for the application?
2. What is the viscosity of the liquid being applied?
3. What are the required spray pattern, size and shape required?
4. Is the liquid under pressure (by pump or pressure pot)?  If so, what is the liquid pressure?

If you have an application where you have a liquid that needs to be applied in atomized form to a target, or perhaps a humidification application, please give EXAIR Atomizing Nozzles your consideration.
 

EXAIR Super Air Amplifiers used in Thermal Spray Cooling Application

Every once in a while, we will run across a video where EXAIR products are being used. I just ran across one on YouTube the other day and thought it worth mentioning here. The video is produced by Air Products Company. The video is intended to promote their patented cryogenic cooling system. The purpose of their system is to minimize heat transfer into the work piece as much as possible by providing a very cold stream of gas immediately after the plasma spray has gone over a section of the work piece.

What I found interesting is that EXAIR 2” Super Air Amplifiers are also being used within the application to provide either the primary or secondary cooling (however you may want to look at it). Air Amplifiers have the ability to provide a great deal of cooling power when there is a temperature differential between the target and ambient air surrounding the application. You cannot get much hotter than plasma, and so the cooling benefits can be realized.  A Super Air Amplifier will draw in surrounding air and propel it toward the target to get as much volume of air moving over the work piece as possible.

There is no doubt that the Air Products cryogenic cooling system does a good job. I would simply like to point out that the “compressed air cooling” mentioned in the video is provided by EXAIR. If a picture is worth a thousand words a video is worth a thousand pictures.

Contact:

Mr. Durga Madhab Praharaj - Sales & Opearations Manager.
Mob : 097404 39220. E -mail : durga@vivekengineers.net 

Website:  www.vivekengineers.net

The 1 Inch Flat Super Air Nozzle Is Here!
Newly released 1 Inch Flat Super Air Nozzle is now available for sale! This newest offering takes its design cues from the 2 Inch Flat Super AirNozzle but in a smaller package with 1/8 NPT   female pipe thread and 297 SLPM flow. BP version available also. Get some for your stock TODAY!!!

EXAIR's new 1" (25mm) Flat Super Air Nozzle is a highly efficient, unique flat air nozzle. The patented design uses a special shim to maintain the critical position of the component parts. The unique design of this super-efficient nozzle makes it an ideal fit for both tight spaces and tight budgets. A precise amount of air is released through the thin slot, across a flat surface. The result is a wide, forceful stream of high velocity, laminar airflow. Air consumption and noise are minimal.

www.vivekengineers.net

Heavy Duty Line Vacs

Have you ever had a customer who had a rather difficult conveying application where the material was very abrasive?  What about an appication where the conveying distance was more than 10 meters?

Check out the Line Vac Video Here.

The Heavy Duty Line Vac was developed to meet these two rather demanding situations. They are made of an abrasion resistance treated, tool steel. They also boast a higher vacuum level than the aluminum and stainless models which enables them to be more powerful at conveying materials from one point to another.

Some applications where the Heavy Duty Line Vac has made a significant impact in productivity include: cleaning up blasting media from a sand blasting cabinet, sucking metal slugs away from a die punching application, moving molding sand up from a barrel to a hopper above a sand molding table for a foundry operation and conveying fiber glass to a fiberglass molding operation.

www.vivekengineers.net

Cabinet Coolers

EXAIR’s cabinet coolers for control panels are UL Component Recognized and provide a low cost method of both purging and cooling electrical and electronic control panels. There are virtually no moving parts. These units are compact and can be installed in minutes through a standard electrical knockout. These units are available for NEMA Type 12, NEMA Type 4-4X rated panels. These user friendly air conditioning systems provide maintenance free cooling for a lifetime of protection without wearing out.

The cabinet cooler uses a stainless steel vortex tube to create cold air from ordinary compressed air.There are Three (3) Types to choose from:

1. Cabinet Panel Coolers NEMA Type 12 For Electronic Control Panels for General use in industrial environments where no direct liquid spray is applied to the unit. Stainless steel construction to hold up in corrosive environments.

2. Panel Coolers NEMA Type 4-4X For Electronic Control Panels - splash resistant, for use in wash down environments as well as outdoor use. Unique patent pending design for secure water tight protection. Stainless steel for food service and corrosive environments. Stainless steel also provides for long life in wet environments and for outdoor use. For more Details>>  

www.vivekengineers.net