Vinaora Nivo SliderVinaora Nivo SliderVinaora Nivo SliderVinaora Nivo SliderVinaora Nivo SliderVinaora Nivo SliderVinaora Nivo SliderVinaora Nivo SliderVinaora Nivo SliderVinaora Nivo SliderVinaora Nivo SliderVinaora Nivo SliderVinaora Nivo SliderVinaora Nivo Slider

Air Knives

Air Knives

adsad

Home

What is an Air Knife System? Intelligent Compressed Air Product  

Air Knife Systems utilize compressed air for industrial applications that include drying, removing excess oils and liquids, dust blow off, and cooling.

An air knife is effective and efficient. The laminar (uniform) sheet of air is projected along the entire length of the air knife to provide an air flow that covers the entire surface of the product. Air Knife Systems from EXAIR have small profiles, are manufactured in various lengths and can be mounted to accommodate many industrial applications involving conveyors and webs, even in tight spaces. Whether your goal is to remove dust and contaminants, cool hot parts or blow off excess oil, water and liquids, the air knife is also energy efficient. By entraining high volumes of room air they use less compressed air and less energy than other blow off products.

EXAIR manufactures air knife systems with aluminum, stainless steel and PVDF for corrosive environments. Sizes range from 3 inches to 108 inches. All of our air knives are CE compliant.

 utube sakteaser150

Watch the video

e69852c88b4e419dbc4c0cfdf3a9e0cdsakvegblow

A Model 110012SS 12” (305mm) Stainless Steel Super Air Knife dries rinse water from vegetables prior to packing.

 

How They Work

 

How the Super Air Knife™ Works

How the Super Air Knife Works

Compressed air flows through the inlet (1) into the plenum chamber of the Super Air Knife. The flow is directed to a precise, slotted orifice. As the primary airflow exits the thin slotted nozzle (2), it follows a flat surface that directs the airflow in a perfectly straight line. This creates a uniform sheet of air across the entire length of the Super Air Knife. Velocity loss is minimized and force is maximized as the room air (3) is entrained into the primary airstream at a ratio of 40:1. The result is a well defined sheet of laminar airflow with hard-hitting force and minimal wind shear.

How the Standard & Full-Flow Air Knife™ Works

How the Standard Air Knife Works

Compressed air flows through the inlet (1) into a plenum chamber. It is then throttled through a thin nozzle (2) extending the length of the Standard Air Knife. This primary airstream adheres to the Coanda profile (3), which turns it 90° and directs the flow down the face of the unit. The primary stream immediately begins to entrain surrounding air (4), for an amplification ratio of 30:1 at 6" (152mm) away.

 

Model Comparision

Which Air Knife is Best For Your Application?

EXAIR manufactures the Super Air Knife™, Standard Air Knife™ and Full-Flow Air Knife™. The table below provides a quick comparison of the three styles.

 

EXAIR manufactures the Super Air Knife, Standard Air Knife and Full-Flow Air Knife. 
Super Air Knife (shown left), 
Standard Air Knife (shown middle), 
Full-Flow Air Knife (shown right).

Air Knife Comparison

Air Knife Comparison
  Air Consumption Velocity Force per Inch (25mm) Sound Level Amp.
  SCFM SLPM FPM M/S OZS GRAMS dBA RATIO
6" (152mm) Super Air Knife 17.4 492 11,800 57.9 2.5 71 69 40:1
6" (152mm) Standard Air Knife 20.4 577 11,000 55.9 2.7 77 83 30:1
6" (152mm) Full-Flow Air Knife 18.6 526 10,000 50.8 2.3 65 80 30:1

Velocity and force measured at 6" (152mm) from target
Sound level measured at 3' (914mm)
All measurements taken at 80 PSIG (5.5 BAR)

The Super Air Knife provides the best performance with a 40:1 air amplification ratio, making it the most efficient. It is the best choice for all applications. The Super Air Knife has a laminar airstream that is uniform, forceful and quiet. Velocity is the highest of all three air knives. Air consumption is lowest of all three air knives. Compressed air inlets are provided on each end and on the bottom. Multiple Super Air Knives can be mounted "end to end" for longer lengths of uninterrupted airflow.

  • Best choice for all applications
  • Lowest operating cost
  • Highest efficiency (saves most air)
  • Quietest
  • 40:1 air amplification ratio
  • Compressed air inlets on each end and the bottom
  • Airflow length and overall length are the same

The Standard Air Knife provides good performance with a 30:1 air amplification ratio that is less efficient than the Super Air Knife. It is a good choice when a less expensive alternative is required. The Standard Air Knife has an airflow that is also uniform and forceful. It is louder and uses more compressed air than the Super Air Knife. Compressed air inlets are provided on each end. Overall length is 1" (25mm) longer than the airflow length.

  • Good choice, lower purchase price
  • Highest operating cost of the three
  • Good velocity
  • Higher dBA rating
  • Compressed air inlets on each end
  • Overall length is 1" (25mm) longer than the airflow length

Full-Flow Air Knife provides good performance with a 30:1 air amplification ratio. The Full-Flow Air Knife is the least expensive and is a good choice for tight spaces. Force is less than the other two. Air consumption and sound level falls between that of the Super Air Knife and the Standard Air Knife. Compressed air inlet(s) are provided on the rear. Inlets are available on each end at a small additional charge, however they are not recommended for applications where uniform flow across the length is required.

  • Good choice, lowest purchase price
  • Higher operating cost than the Super Air Knife
  • Smallest size
  • Airflow length and overall length are the same


Special Air Amplifiers

Special Super Air Knives
 

EXAIR manufactures special Super Air Knives suited to specific application requirements. The shape, dimensions and materials of construction can be modified to fit existing machines and environments.
The special Super Air Knife (shown at right) is manufactured of stainless steel and has a slightly curved shape. This "curved" Super Air Knife was manufactured for a laboratory who used the force of the airflow to hold test tubes in place on a rotating index table. The table had no clips or latches to hold the test tubes in place. This made it easy for the technician to remove the test tube from the holding slot without manipulating a mechanical latch. It saved time, minimized risk of tube breakage and eliminated any chance of puncturing the technician's rubber gloves.

A special curved stainless steel Super Air Knife holds test tubes in place on a rotating index table.
A special curved stainless steel 
Super Air Knife holds test tubes in place on a rotating index table.

EXAIR manufactures special Super Air Knives made of plastic. These products are engineered to work under normal operating pressures, providing the same performance as their aluminum and stainless steel counterparts. The PVC Super Air Knife (shown at right) was manufactured for a picture tube plant. The softer material was less likely to scratch the tubes surface and was chemically resistant to the phosphorus which coated the inside surface. PVC Super Air Knife
A PVC Super Air Knife designed to withstand phosphorus.
The flat Super Air Knife (shown at right) is used in a molding machine for integrated circuit chips. Prior to molding the black plastic shells around the silicon wafers, they blow the mold cavity clean of any fine plastic fibers left by the previous cycle. The flat design constructed of corrosion resistant stainless steel was made to fit the tight space of the molding machine. A flat Super Air Knife, only 11/16" thick, blows plastic fibers from a mold used to make integrated circuit chips.
A flat Super Air Knife, only 11/16" thick, blows plastic fibers from a
mold used to make integrated circuit chips.
The double-sided Super Air Knife (shown at right) provides two uniform sheets of air in opposite directions. It is ideal for blowing water from two or more columns of stacked parts (like printed circuit boards) as they are lifted out of a bath or the open halves of a mold. Each side operates independently. The double-sided Super Air Knife provides two uniform sheets of laminar airflow.
The double-sided Super Air Knife provides two uniform sheets of laminar airflow.
The Super Air Knife (shown at right) can be modified to include extra mounting holes to suit your application. Special Super Air Knife
Stainless steel Super Air Knife
modified to include extra mounting holes.

 

 

 

  • 6262505039664873.jpg
  • Kido logo.jpg
  • Kinh Do.jpg
  • logo1.jpg
  • logo2.jpg
  • logo5.jpg
  • logo6.jpg
  • logo coca.jpg
  • Logo HV.jpg
  • logo interfood.jpg
  • logo KCVN.jpg
  • logo Unilever.jpg
  • Logo_Tribeco.jpg
  • pepsico.jpg
  • Sabeco.jpg
  • Sabmiller.jpg

Giới Thiệu

Công ty TNHH Thương Mại Dịch Vụ Kĩ Thuật Hoàng Vũ Được Thành lập năm 2002 hoạt động thiết bị, máy công nghiệp, tư vấn giải pháp và dịch vụ kỹ thuật.

Liên Hệ

42B Lê Trực, phường 7, quận Bình Thạnh, TP HCM.

Tel: 02 8 3512 5670 (04 lines)

Hot Line: 091 661 7376

Fax: 02 8 35 128 129

Email: info@hoangvumachinery.com

Site Map

Thống kê truy cập

1206132
Hôm nay
Hôm qua
Tuần này
Tháng này
Tất cả
161
249
410
9117
1206132

Đăng nhập

Joomla Templates - by Joomlage.com