In these machines, abrasive blasting and abrasive recovery is simultaneous. The spent abrasive is confined in a small vicinity on the job itself and the same is pneumatically sucked and fed to abrasive storage for re-cycling.

Pneumatic suction of abrasive is affected by suction caused either with the help of compressed air or by vacuum pump or by electric motor drive blower. Various models are available to suit individual application.





1.) Portable Mini Vaccum Blaster
      Model ‘KUV – 14P’ :

This is a very handy dust free portable vacuum cleaning machine. A light weight machine weighing only 3.7 kgs and can hold abrasive upto 1.7 kgs of metallic grit. It requires 40 to 60 cfm at 90 psi. It is mostly used for touch-up work on plain or curved surface for removal of rust / scale / paint. Fine abrasives like aluminium oxide, plastic grit or agro based abrasives is mostly used. In fact it is a very economical hand tool.



 

Salient Features :
Light Weight	:	Easy To Handle
Flexible Blasting	:	Nozzle Can Be Positioned Overhead / Down Head Or Side Ways.
Ready To Use	:	Does Not Require Setting Time.
No Electric Connection	:	Needs Only Compressed Air.
Wide Pattern	:	Blasting Pattern Up To 30 Mm.
Multi Abrasive Choice	:	Light Weight Abrasives Of Finer Grades Are Usable.

2.) Portable Vaccum Blasting Equipment :


The vacuum blasting equipment operating principle is shown here in diagrammatic cross section. The arrows marked in green indicates abrasive flow that is pressure fed from the pressure vessel / abrasive tank (a) to the blast gun (b) and it is vacuum recovered via vacuum hose to the reclaimer unit (c). The gun body is specially designed to hold blast nozzle as well as the recovery hose. A nylon brush surrounds the gun body to prevent the escape of abrasive and dust. The blast gun remains in close touch with the surface to be cleaned.

The reusable abrasive is air washed and sieved and returned to abrasive tank (a) for reuse. Dust and debris are trapped by the cyclone (d) and dust collector (e). Reverse air flow (vacuum) is created by compressed ‘air ejector’ or by vacuum pump (f). The complete equipment is mounted on castors which facilitate movement along the work site. Atomized gun maneuvering with crawler unit (optional) can be provided on demand. However, this equipment is not suitable for irregular and complex shaped surface profiles, until and unless a special brush is developed.




Technical Specifications :

S.No.	Description	KUV – 15P	KUV – 15E
1	Main Feature	Pneumatic Recovery	Vacuum Pump Recovery
2	Overall Dimensions (mm)	800 x 1100 x 2200 H	800 x 2000 x 2200 H
3	Abrasive Tank Capacity	42 Liters (1.5 cft)	2 Litres (1.5 cft)
4	Storage Tank Capacity	28 Litres (1.0 cft)	28 Litres (1.0 cft)
5	T.C. Lined Blast Nozzle	6 mm	6 mm
6	Blast Hose Dia & Length	19mm x 7.5 mtrs.	19mm x 7.5 mtrs.
7	Suction Hose Dia. & Length	38 mm x 8 mtrs.	38 mm x 8 mtrs.
8	Dust Collector Hose	75 mm x 1.5 mtrs.	75 mm x 1.5 mtrs
9	Recovery System	Air Injector	Vacuum Pump
10	Reclaimer Type	Cyclone & Vibrating Screen	Cyclone & Vibrating Screen
11	Dust Collector	S.S. Cartridge	Paper Cartridge
12	Compressed Air Requirement	290 cfm at 6.33 kg / Sq.Cm.	68 cfm at 6.33 kg / Sq.Cm.
13	Electrical Load Required	NIL	10.0 HP, 415V, 3P, 50 Hz
14	Recommended Abrasive	16 to 36 BS MESH	16 to 36 BS MESH
15	Cleaning Rate Inlet Air Connection	19 mm	19 mm

Silent Features :
 

Portable	:	Mounted on castors. Equipment can be carried onsite / near to the job as required.
In Situ Blasting	:	Large sized components can be blasted  insitu. Do not require blast room. Localized blasting at a particular location is possible for in plant maintenance.
Highly Effective	:	Work on the direct pressure principle of abrasive blasting. Thus abrasive are propelled at a high force against the work surface, thus increasing the blasting output. Heavy scales are contaminations are easily removed.

Uniform Cleaning & Finishing	:	Maintains consistency in cleaning and finishing. Abrasive is cleaned from dust and debris inline in the reclaimer before being fed to the blast gun for recycling.
Reuse of Abrasive	:	Metallic abrasive like c.i. grit and steel grit / shots are recycled and reused continuously. The media recycling is thus automatic.
Remote Control	:	Machine on / off control is located at the blast gun for the ease of operator.
Safe Operation	:	No risk of flying abrasive and dust. Equipment operation is safe.
Environment Friendly	:	Dust and debris are collected in the dust collector. Exhaust air to the atmosphere is clean and environment friendly.