Performing at the specifications required by U.S. Government entities such as the Army Corps of Engineers, Denver’s line of pneumatic concrete vibrators are ideal for mass concrete pours where continuous operation is required. Powered by compressed air, their simple motor-in-head construction eliminates heat issues by keeping the head cool while their bearingless design make the vibrators virtually maintenance-free. Hard hitting and engineered for a long life, Denver’s pneumatic series of concrete vibrators are well suited for locks and dams, spillways, structural bearing walls, piers, roller-compacted concrete applications and more.
The A250, A300, A350 and A450 models are available with a rubber handling hose in lengths from 4 feet to 100 feet. The A300, A350 and A450 models are also available with a 2 foot long steel handle. The A600S is available with a steel handle only. The steel handle models may be used to the depth of the exhaust ports (approximately 3 feet). Denver also offers the A250, A300 and A350 with rubber-coated heads for use with epoxy-coated rebar. Please note that the rubber coating will add a ½ inch to the head diameter listed below. All pneumatic concrete vibrators come with an inline oiler, throttle valve, air strainer and quick connect fitting. The steel handle models will include a 10 foot tail hose.
Maximum air pressure for the air vibrators is 90 psi. For the best results and longest vibrator life, do not exceed 90 psi air pressure.
Learn how to properly use internal concrete vibrators here. (en español)
All products made by Denver Concrete Vibrator come with a limited lifetime warranty against manufacturing defects.
Need help selecting the right vibrator? Please contact us by phone at 800.392.6703 or by email and let us help you choose the correct vibrator for your application.
Pneumatic Vibrator Performance Data
| Model | Head Diameter | Head Length | Head Weight | Diameter of Effect* | Vibrations per Minute | Centrifugal Force | 1/2 Wave Amplitude | Air Use at 90 PSI (Max) |
|---|---|---|---|---|---|---|---|---|
| A250 | 2.5" | 10" | 8 lbs | 20" to 30" | 10,000 | 736 lbs | 0.04" | 60 cfm |
| A300 | 3.0" | 13" | 15 lbs | 24" to 36" | 9,000 | 1,294 lbs | 0.06" | 110 cfm |
| A350 | 3.5" | 13" | 20 lbs | 29" to 42" | 9,000 | 1,830 lbs | 0.045" | 115 cfm |
| A450 | 4.75" | 17" | 39 lbs | 38" to 54" | 8,000 | 2,454 lbs | 0.04" | 175 cfm |
| A600S | 6.2" | 19" | 60 lbs | 50" to 72" | 7,000 | 3,380 lbs | 0.045" | 190 cfm |
*The diameter of effect varies with wetness of the pour. The lower number is based upon a 2 to 4 inch slump.
See also: Parts List for Air Vibrators.