National Enterprises manufacturers standard and customized tunnel type airless shot blasting machines with a number of blast wheels to suit the job size and production output.
Our machine is best recommended for
blast cleaning of cylindrical components,
flat and long components, channels,
angles, gratings, pipes etc.

It is used for removal of dust/ rust and to achieve superior quality (approx. SA 2, SA 2.5 SSPC Standards) finish after blast cleaning prior to painting/ primer. The opening of the tunnel and quired number of blast wheels depends upon the structure of the job for achieving a homogenous finish. Major assemblies of the machine are blast wheels for giving a high production output roller conveyor for job conveying and media recovery consists of bucket elevator, screw conveyor, rotary screen separator, abrasive store copper et etc. Pulse jet type dust collector is less then 10 mg/m³. The component(s) is to be placed in such a way that the conveyor belt is able to rotate it horizontally. The conveyor belt carries the components into the blast vestibule tunnel for surface preparation. Customizations are available according to the dimensions and length of the components. After surface preparation the conveyor belt carries the components to the end of the blasting chamber where in the components can be unloaded manually.

The machine consists of the following:

Blasting Chamber

Blast Wheel Assembly

Abrasive Circulation System

Pulse Jet Type Dust Collection System

Roller Conveyor

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