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A7A Automatic Airless Spray Gun

A7A Automatic Airless Spray Gun

A7A Automatic Airless Spray Gun

Product catalog summary
Overview
Nordson A7A automatic airless spray guns are engineered for high-production airless painting, sealant, and adhesive applications, offering fine atomization and a controllable spray for excellent finish quality with minimal overspray. These guns are air-actuated, providing fast response times and high-speed cycling capabilities, making them ideal for precise material application.

Specifications
The A7A guns are available in single and dual-chamber models, including dual-chamber angled versions. They can be used in both noncirculating and circulating heated airless applications. Standard models are made of aluminum and steel, while stainless steel versions are suitable for waterborne, corrosive materials, or special food and drug applications. Extended-nozzle versions are available for coating recessed areas.

Features and Benefits
  • Fast cycling with positive cutoff for precise operation and minimal dripping.
  • Rugged construction minimizes downtime and maintenance costs.
  • Dual-chamber guns allow for fast cleaning and color changes without downtime.
  • Compact design ensures long life and low maintenance costs.
  • Optional kits available for increased pressure range and precise control.

Dual-Chamber Guns
These guns are ideal for instant color changes in robotic painting applications and drum painting lines. They allow two colors to be circulated simultaneously, with the appropriate color selected via air piston actuation. Heated coatings improve atomization and finish quality, reducing material use and costs.

Nordson Cross-Cut Nozzles
These nozzles provide improved atomization for a wide range of coatings, achieving excellent results at reduced fluid pressure, minimizing waste and enhancing efficiency.

Technical Specifications
  • Single Chamber Dimensions: 3.5 in. (89 mm) in height, length, and width; Weight: 15 oz. (0.45 kg).
  • Dual Chamber Dimensions: 4.375 in. (111 mm) height, 5.25 in. (133.35 mm) length, 3.5 in. (89 mm) width; Weight: 3.15 lbs (1.43 kg).
  • Dual Chamber Angled Dimensions: 4.625 in. (117 mm) height, 6.0 in. (152 mm) length, 3.5 in. (89 mm) width; Weight: 2.65 lbs (1.20 kg).
  • Air Requirements: 40-120 psi (2.75-8.27 bar).
  • Maximum Fluid Pressure: Standard 1700 psi (117 bar), with high pressure option kit 3000 psi (206 bar).

Contact Information
For more information, contact Nordson Corporation at their regional offices in the United States, South and Central America, Europe, Japan, Asia, and Australia/New Zealand.
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Catalog excerpts

A7A Automatic Airless Spray Gun-1

Automatic Airless Spray Guns Single or dual-chamber automatic spray guns for versatile, reliable high-production airless painting applications. ■ Fast cycling with positive cutoff - provides precise operation with minimal dripping and spitting. ■ Rugged, production-proven construction - minimizes downtime and maintenance costs. ■ Several models available - dual-chamber guns can be used on drum painting lines to provide fast cleaning/ color change with no downtime. Stainless steel models apply waterbornes and highly corrosive materials, or can be used in special food or drug applications. ■ Compact, rugged construction - ensures long life and ■ Extended-nozzle versions available - for coating recessed areas. ■ Use Nordson Cross-Cut and dome nozzles - for effective atomization of hard-to-atomize coatings with minimal paint waste. ■ Mounts to 1/2" round bar - for fast, easy installation. Retrofit kits available - convert two single guns into a dual-chamber model for improved operating flexibility. ■ Optional air cylinder detent kit - provides precise control of needle movement to regulate fluid stream. ■ Optional high pressure kit - increases operating ■ Optional Nordson NH-4 heater - reduces and controls material viscosity for improved operating performance A7A guns are used on high-speed drum painting lines to deliver fast, precise coating coverage. Nordson A7A automatic airless spray guns are designed to deliver maximum reliability in high-production airless painting, sealant and adhesive applications. Nordson airless systems, featuring ATA guns, produce fine atomization and a soft, controllable spray to deliver excellent finish quality with minimal overspray. Air-actuated ATA guns provide fast response time (30 to 40 milliseconds) and high- speed cycling capability (up to 2500 cycles per minute), and are ideal for coating situations requiring precise material application. Meet Varying Requirements Nordson ATA guns are available in single and dual chamber, and dual-chamber angled models, and can be used in either noncirculating or circulating heated airless applications. Standard ATA guns are constructed of aluminum and steel, while stainless steel models can be used with waterbornes, highly corrosive materials or in special food and drug applications. A wide range of standard and special models are also available to meet unique application requirements, including extended-nozzle versions for coating recessed areas.

 Open the catalog to page 1
A7A Automatic Airless Spray Gun-2

Model A7A Automatic Airless Spray Guns Dual Chamber Dual-Chamber Guns Dual-chamber ATA guns incorporate the industry- proven features of the original ATA gun and share many common parts. Dual ATA guns are ideal for instant color change in robotic painting applications and on drum painting lines. Two colors can be circulated through the dual fluid body at the same time, and the appropriate color selected by actuating the respective air piston of the gun. Heated coating material is circulated close to the nozzle, providing uniform temperature and consistent painting quality. Dual-chamber ATA guns...

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.