The single impact pneumatic vibrator or "air knocker" delivers one impact at a maximum frequency of once every three seconds through a five-port spool valve. A timer is used to vary the impact cycle required. Single impactors or "air knockers" act most like a hammer and are most effective for sticky materials because they are less likely than continuous vibration to cause packing in bins and hoppers.

DURABLE - one-piece, ductile iron housing and spring-less design ensure long effective life

SAFE - use of ported exhaust reduces noise levels while pneumatic power allows for operation in hazardous areas

VERSATILE - dual diameter piston allow for mounting at any angle on your bins, chutes and hoppers handling

EASY - all industrial vibrators come with mounting fasteners and a gasket for quick set-up

Make It a Kit - includes a mounting channel, 5 ft. inlet and exhaust hoses w/ fittings, 5-port spool valve and timer

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Item #

Piston Diameter

Piston Weight lbs.

Air Consumption @ 80 psi

Energy Per Impact @ 80 psi

Weight lbs.

1125 SI N/A 1-1/4" N/A 1.5 N/A .01 cf/stroke N/A 11 ft lbs. N/A 7.00
1200 SI N/A 2" N/A 2.5 N/A .02 cf/stroke N/A 25 ft lbs. N/A 15.30
1300 SI N/A 3" N/A 10 N/A .084 cf/stroke N/A 86 ft lbs. N/A 34.80
1350 SI N/A 3-1/2" N/A 14.5 N/A .12 cf/stroke N/A 172 ft lbs. N/A 43.00
1400 SI N/A 4" N/A 30 N/A .242 cf/stroke N/A 354 ft lbs. N/A 110.00
1500 SI N/A 5" N/A 73 N/A .526 cf/stroke N/A 789 ft lbs. N/A 255.00
1700 SI N/A 7" N/A 160 N/A 1.078 cf/stroke N/A 1425 ft lbs. N/A 450.00
1900 SI N/A 9" N/A 266 N/A 1.658 cf/stroke N/A 2277 ft lbs. N/A 862.50
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