Flex Shaft Concrete Vibrators
Flexible shaft concrete vibrators are designed for all general construction. Typical applications include footings and stem walls, small slabs, driveways, and stairways. They are very portable and convenient to use.
Quick Release for Flexible shaft applications: Simple, effective and easy to use, the quick release package includes single-pin locking nose on the motor and an adapter for the flexible shaft housing. It allows quick removal of the core and housing assembly for storage or a change to a different shaft length or head size. The quick release system can easily be retrofitted to Denver Concrete Vibrator flexible shaft units that use the traditional threaded style connection. The Quick Release option package includes a new motor end, and one shaft adapter. Additional shaft adapters are available.
Backpack for flexible shaft concrete vibrators: This comfortable cushioned fiberglass frame moves the flexible shaft motor out of a man's hand and on to his back. It also serves to help keep equipment cleaner, and off the ground.
Insulated heads for epoxy coated rebar applications: Available for jobs that require a cushioned head to protect the epoxy rebar, we offer 2.25", 2.5" and 3.0" diameter insulated heads for our flexible shaft vibrators.
Features:
- High amplitude heads for greater radius of effect.
- All shafts made to order. We can make the flex shaft any length.
- The finest quality flexible housing available.
- Sealed bearings require no lubrication.
- Nine head sizes available for a wide variety of jobs .
- A ball bearing coupler is available to connect two shafts together to may a single longer shaft.
- Standard diameter flexible shafts are interchangeable with any of the six larger head sizes.
- Interchangeable steel/rubber nose on the five larger heads. Core and housing, with head sizes of 1.5" diameter or larger, can be reversed, head end to motor end, to extend housing and core life.
- All Denver Concrete Vibrators come with a limited lifetime warranty against manufacturing defects.
Learn how to properly use internal concrete vibrators here. (en español)
Also see Gas Backpack Vibrator and Flex-Power 5.
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 Electric Motor Options
| Model | Voltage | Amps | HP | RPM** | Weight (Lbs) |
|---|---|---|---|---|---|
| ES10 | 115 | 9.0 | 1.0 | 12,000 | 15 |
| EM15 | 115 | 11.0 | 1.5 | 12,000 | 15 |
| EH25 | 115/230* | 15/7.5 | 2.5 | 12,000 | 24 |
*EH25 is available in either 115 or 230 volt. It is not a dual voltage motor.
**RPM varies with shaft length and head size.
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.
Motor, Shaft and Head Pairing Recommendations.
| Motor Size | 1.0 HP | 1.5 HP | 2.5 HP |
|---|---|---|---|
| Head Size | Recommended Maximum Shaft Length | ||
| 13/16" | 20 ft. | 20 ft. | 30 ft. |
| 1.25" | 16 ft. | 16 ft. | 30 ft. |
| 1.5" | 10 ft. | 16 ft. | 30 ft. |
| 1.75" | - | 14 ft. | 28 ft. |
| 2. 0" | - | 12 ft. | 25 ft. |
| 2.5" | - | 10 ft. | 22 ft. |
| 2.75" Spud | 10 ft. | 16 ft. | 28 ft. |
| 3.0" | - | - | 14 ft. |