Friday, 9 February 2018

Gen4 Ion Air Gun


In  industrial processes, static electricity can lead to a variety of problems like printing errors, harmful shock, damaged product or shorted life for electrical components.  We offer a wide range of Exair static eliminating products that can help control this nuisance and restore material to an electrically balanced state.When it comes to a static causing problems with a manual operation, Exair Gen4 Ion Air Gun is the preferred choice. The Gen4 Ion Air Gun incorporates a thumb trigger air gun with an ionizer attached to deliver a bulk of positive and negative ions to quickly eliminate the surface charge of a material, up to 5kV in only 0.18 seconds, when operated at 80 PSIG.

The Model # 8193 Gen4 Ion Air Gun is having a 10′ flexible armored and electromagnetic shielded cable to protect against potential damage in an industrial setting. (special length cables up to 50′ are available if needed).  The cable assembly can also be easily removed for cleaning or replacing of the stainless steel emitter point, allowing for worry free, proper operation.The Gen4 Ion Air Gun is UL recognized for the US and Canada and CE compliant, meeting the product requirements for items being sold in European markets. It also meets 2 important OSHA directives relating to the safe use of compressed air. The first being OSHA Standards 29 CFR 1910.242(b), requiring that the outlet pressure of an open pipe, nozzle, air gun, etc., when used for cleaning purposes, must remain below 30 PSI when dead-ended. The second being Standard 29 CFR 1910.95(a), protecting workers from potential injury related to dangerous sound levels of 90 dBA or higher. Additionally, the Gen4 Ion Air Gun is RoHS compliant as well.

They are designed to be used with our Gen4 Power Supplies, Model # 7960 with 2 outlets or the Model # 7961 with 4 outlets for powering multiple ionizers. The Gen4 Power Supplies are selectable voltage, 115VAC or 230VAC, and feature a 6′ modular power cord and lighted power switch.

Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : sales@vivekengineers.net , durga@vivekengineers.net

Friday, 5 January 2018

The Cold Gun And Chip Vac can be used to Simplify Plastics Machining

A plastics manufacturer who was needing some solutions for problem areas in their production processes. The company imports their machines from overseas and they are outfitted with a coolant based, quench system for the tooling. They were wanting to get away from using coolant as the parts were absorbing liquid, causing them to swell, not to mention the mess they were creating, requiring more time and labor to dry and clean the parts manually.
For the first application, replacing the messy misting system, Exair's Application Engineer recommended the customer use Exair's Cold Gun System, Model # 5215. The Cold Gun uses Vortex Tube technology to produce a cold air stream 50°F lower than the incoming compressed air supply temperature. For example, if your supply air was ambient 70°F, you would effectively see 20°F air at the exhaust. This clean, cold air stream can be easily directed to the needed area to prevent any warping or other damage related to heat, while also blowing away the machined fines.
Model # 5215 – includes the Cold Gun, Single Point Hose Kit, 3/8″ Cone Nozzle, 1-1/4″ Fan Nozzle and Filter Separator

The second part of the process involved the recovery of the plastic scrap and chips created during the machining process. Once again, EXAIR has the ideal solution with Exair Chip Vac, Industrial Vacuum. The Chip Vac creates a powerful vacuum, with no moving parts or motors to wear out, making them virtually maintenance free. The Chip Vac is designed to vacuum dry or wet chips and collect them in a standard, open-top steel drum. Systems are available in 5, 30, 55 or 110 gallon capacities.
From small area clean up to larger scale processes, the Chip Vac has you covered

To discuss how EXAIR products might help improve your machining process, kindly contact us.
Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : sales@vivekengineers.net , durga@vivekengineers.net

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

Thursday, 30 November 2017

Super Air Knives vs. Other Alternatives

There are many ways to blowoff, cool, and/or dry materials.  A few of these methods are the drilled pipe, an array of flat nozzles, using a blower driven air knife and the EXAIR Super Air Knife.  We’ll examine each in further detail, for blowoff of water after a bottling cleaning operation.  Testing was done at 60 PSIG of supply pressure.  The blower utilized a 10 hp motor and was a centrifugal type spinning at 18,000 RPM.  Sound levels were taken with product not present to test the sound of each of the blowoff types.

Drilled pipe is a common blowoff because it is very inexpensive and easy to make.  But drilled pipe performs poorly.  The low cost to make the drilled pipe is quickly outpaced by the inefficiency and high compressed air costs.  The holes are easily blocked and the noise level is excessive, both of which violate OSHA requirements.  Also, the air pattern across the length can be very inconsistent, with areas of low flow and areas of turbulent flow.
Flat air nozzles installed along a length of pipe is another inexpensive option, but it can be a poor performer.  The flat nozzles are available in many materials, from many manufacturers.  The flat nozzles do offer some efficiencies, but similar to drilled pipe, the operating costs and noise levels are high. Air pattern across the length can be inconsistent with areas of high and low flows, leading to incomplete drying or cooling. Also, many of these nozzles are made from plastic material which breaks or cracks when it it hit which causes additional expense and maintenance to replace broken nozzles.
A blower air knife can prove to be an expensive and noisy option.  Typically, the initial purchase price is high.  Operating costs are lower than the drilled pipe and flat nozzles and in line with the Super Air Knives.  The blowers can be very large and space for two 3″ diameter hoses requires extra mounting space compared to low profile other options. Noise levels are high, at 90 dBA.  Annual costs for bearing and filter maintenance can be significant.
EXAIR Super Air Knives performed exceptionally well in removing the water in one pass due to the strong, laminar flow of air.  Sound level was low at just 69 dBA, well within OSHA requirements for an hour 8 hour exposure time. Safe operation is assured, as the Super Air Knife design cannot be dead-ended.  Maintenance costs are low, as the Super Air Knife has no moving parts to breakdown or wear out.

Ultimately, the Super Air Knife is a low cost way to blowoff, dry, clean and cool.
Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : sales@vivekengineers.net , durga@vivekengineers.net

Tuesday, 31 October 2017

Super Blast Safety Air Guns: Powerful & OSHA Compliant


In some applications the force from a Heavy Duty, Soft Grip, VariBlast, or Precision Safety Air Gun may not be quite enough to get the job done. Not to worry! EXAIR’s Super Blast Safety Air Guns use our Super Air Nozzle Clusters and Large Super Air Nozzles and turn them into a handheld gun with the same strong blowing force.

The Super Blast Safety Air Guns are comfortable to hold with a soft foam grip. They’re safe to operate with all of the Super Blast Safety Air Guns incorporating EXAIR’s OSHA compliant nozzles and clusters. In addition, they also have a spring-loaded manual valve that will automatically shut off the compressed air if accidentally dropped.

Friday, 4 August 2017

Super Air Knife-To avoid chips coming out from the work station, used as an air curtain

Recently, we worked with a Client, who has been involved mainly with fabrication of mild steel and stainless steel components and had a problem with workers being hit by chips coming out  from the work station. So you will have look to the below image. As there is no front end cover, so It was  tremendously unsafe and dangerous for workers to work in this circumstances.They contacted to Our company Vivek Engineers and our application engineers visited their place and after a case study,they reached to a solution to use Exair's 30" Super Air Knife.

As Exair's Super Air knife consists of a high intensity, uniform sheet of laminar airflow sometimes known as streamline flow across the entire length with hard hitting force.So, it easily blows away the chips which are coming out from workstation. Eventually,the workers are able to work with safe and the client is satisfied with 30"Super Air Knife to use in their application.

EXAIR offers the Super Air Knife in lengths from 3" to 108", with a 0.002" shim installed.  They’re ideal for most industrial and commercial blow off applications. If you have such an application, give us a call. 
Below Our contact details
Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : sales@vivekengineers.net , durga@vivekengineers.net

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

Thursday, 27 July 2017

EXAIR Vortex Tubes: As Much Cold Air As You Need, As Cold As You Need It

Looking for a reliable, consistent flow of cold air, Vortex Tube is really the better way to produce it. There are no moving part, the air flow and temperature from a particular model, set to a specific cold fraction, is only influenced by the compressed air supply pressure & temperature.
Pressure is easy to control, all you need is a suitable regulator.  Temperature can be a variable, depending on your type of compressor, if you have a dryer system (and what type it is,) and sometimes, ambient conditions…if, for example, a long pipe is run through a very hot environment like a foundry or a blast furnace operation.  In cases where supply pressure and/or temperature can be limitations, a higher capacity Vortex Tube, set to a lower Cold Fraction, may be specified.  Which brings me to the user inquiry that inspired today’s blog…
This particular customer uses our Model 3215 Vortex Tubes (15 SCFM, 1,000 Btu/hr) to provide cooling to analyzer systems that monitor certain quality parameters in their manufacturing processes.  The ability to precisely control the temperature in these systems makes for repeatable and accurate measurement of these parameters.   Their compressed air supply in this area is regulated to 80psig, they have a refrigerant-type dryer and climate-controlled facility, so their supply temperature is a consistent 70°F.  You couldn’t ask for better conditions for a successful Vortex Tube application, and they’ve worked great, for years.

Now, due to a plant expansion, they’re installing some of these analyzer systems in a location where the compressed air supply is limited to 60psig.  The required cooling capacity is going to be the same, so the Project Manager reached out to us to see if they could get the same amount of cooling with this new pressure limitation.  Here’s how they’re doing it:
Exair publish the rated performance of Vortex Tube products for a supply pressure of 100psig.  The Model 3215 Vortex Tube consumes 15 SCFM @100psig and, when set to an 80% Cold Fraction (meaning 80%…or 12 SCFM…of the 15 SCFM supply is directed to the cold end,) the cold air will be 54F colder than the compressed air supply temperature.  Here’s the performance table, so you can follow along:
Now, their supply is at 80psig.  Since air consumption is directly proportional to absolute supply pressure (gauge pressure PLUS atmospheric, which is 14.7psi at sea level,) we can calculate their units’ consumption as follows:
(80psig + 14.7psia) ÷ (100psig + 14.7psia) = 0.83 X 15 SCFM (@100psig) = 12.4 SCFM (@80psig)
So, with a 50°F temperature drop (from a supply @70°F,) they were getting 12.4 SCFM of cold air at 20°F.
As you can see from the table above, they’ll only get a 46°F drop at 60psig…and the flow won’t be as high, either.  So…we’ll need to get more air through the Vortex Tube, right?  Let’s use a little math to solve for what we need.
We still need 20°F cold air from 70°F compressed air, so, at 60psig, we’re looking at a Cold Fraction of ~70%.  And we still need 12.4 SCFM, so:
12.4 SCFM ÷ 0.7 = 17.7 SCFM @60psig (required supply)
Our Model 3230 Vortex Tube uses 30 SCFM @10opsig…at 60psig it’ll consume:
(60psig + 14.7psia) ÷ (100psig + 14.7psia) = 0.65 X 30 SCFM (@100psig) = 19.5 SCFM (@60psig)
That’s about 10% more flow than they needed, theoretically, which was close enough to start.  From there, they “dialed in” performance by regulating the supply pressure and Cold Fraction
Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : sales@vivekengineers.net , durga@vivekengineers.net

Monday, 3 July 2017

Cooling Gelatin Pills Using The Mini Cooler

Our Principal recently worked with an OEM on a cooling application for a gelatin pill forming machine they designed for their customer. In their machine design, the gelatin film leaves an extruding machine then travels between 2 punch rollers to form the pills. After the pills are formed, they are supposed to drop onto a chute feeding a conveyor to carry the pills to the bottling/packaging area.egree quick release elbow connection, 1 aluminium wand ( drum not included).

The problem they were having was the film was retaining heat which caused the pills to occasionally stick to the roller, resulting in rejects and lost production time. They were looking for an economical way to blow cold air across the rollers and film but were concerned about putting too much demand on their customer’s compressed air system.
After reviewing the photos and discussing the details, Our Principal recommended they use Exair's Model # 3308 Mini Cooler System with dual point hose kit. The Mini Cooler provides a 50°F temperature drop from the incoming supply air temperature and provides 550 Btu/hr. of cooling capacity. The system includes a swivel mag base for easy installation while the dual point hose kit would allow them to direct the cold air to blow across both rollers from a single device. Compressed air demand is minimal, at only 8 SCFM @ 100 PSIG, alleviating their concern for the customer’s compressed air system.
Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : p.lochan@vivekengineers.net