Denver Concrete Vibrator’s electric backpack moves the flex shaft motor up off of the ground and on to the users back. Equipment life is extended because the motor is no longer being dragged through concrete and mud. The lightweight and comfortable backpack frame reduces user fatigue and helps to increase production.
Features:
- Lightweight fiberglass frame with multi-point adjustment straps for maximum comfort.
- Vented padding maximizes airflow to help keep the operator cool.
- The motor rotates a full 360 degrees allowing the user to place the vibrator in the most comfortable position.
- Available with an optional remote on/off switch that attaches to the flex shaft. This allows the user to turn the motor on or off without taking off the backpack.
- All metal parts used on high-stress components.
- Flex shaft quick disconnect system comes as standard equipment.
- Convenient water bottle holder on the waist strap.
- A hinged mount allows the engine to pivot for added comfort.
- Weighs less than 25 pounds.
Learn how to properly use internal concrete vibrators here. (en español)
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.
Flex Shaft Head Performance Data
| Model | Head Diameter | Head Length | Head Weight | Diameter of Effect* | Vibrations per Minute | Centrifugal Force | 1/2 Wave Amplitude |
|---|---|---|---|---|---|---|---|
| D.81-6 | 13/16" | 6" | 1 lbs | 3" to 7" | 12,000 | 61 lbs | 0.024" |
| D.81 | 13/16" | 11" | 1 lbs | 5" to 11" | 12,000 | 141 lbs | 0.03" |
| D1.25 | 1.25" | 8" | 2 lbs | 10" to 15" | 12,000 | 178 lbs | 0.035" |
| D1.5 | 1.5" | 13" | 5 lbs | 12" to 18" | 10,000 | 435 lbs | 0.045" |
| D1.75 | 1.75" | 15" | 7 lbs | 14" to 21" | 10,000 | 830 lbs | 0.05" |
| D2.0 | 2.0" | 10" | 6 lbs | 16" to 24" | 10,000 | 900 lbs | 0.055" |
| D2.5 | 2.5" | 10" | 9 lbs | 20" to 30" | 10,000 | 1,260 lbs | 0.055" |
| D2.75 Spud | 2.75" | 6" | 7 lbs | 14" to 21" | 12,000 | 818 lbs | 0.035" |
| D3.0 | 3.0" | 12" | 15 lbs | 24" to 36" | 10,000 | 1,676 lbs | 0.039" |
*The diameter of effect varies with wetness of the pour. The lower number is based upon a 2 to 4 inch slump.
See also Gas Backpack and Electric Flex Shaft.
All Denver Concrete Vibrators come with a limited lifetime warranty against manufacturing defects.