BiDi® Conversions

Eliminates Cage Twist
Potential Cement Savings

Potential Steel Savings
Excellent Wire-to-Concrete Bond

Improves Concrete Compaction
improved Production of High Quality Pipe

Quick-Change Process

The quick-change feature adds yet another dimension to the field-proven Besser hydraulic bell packer assembly. The upper vibrator plate atop the assembly incorporates attachment points to accommodate new-style quick-change turning and vibrating standards. During attachment changeover, the turning and vibrating standard is placed in notches on the vibrator plate, then simply rotated and clamped into position. In addition to saving time and labor, this entire process is accomplished from floor level with no need to enter the machine pit.

Hydraulic Vibration Technology

The main feature of the hydraulic bell packer itself is the vertical impact hydraulic vibrator which offers a number of advantages over electric vibration:

• Vertically packs the concrete for improved efficiency and movement of vibration
• Improves pallet movement for better bell density
• Reduces sound
• Reduces bell cycle times
• Eliminates collector ring and its maintenance

Developed, built and tested by Besser Company, the dual synchronized shaft vertical impact vibrators are hydraulically driven and self-lubricating. This type of vibrator gives the producer more versatility in bell making as various adjustments can be made to produce a better bell. These include either rotating or oscillating the pallet as well as varying the vibrator speed with a potentiometer on the control panel.

Bell Packer Assembly

The self-cleaning bell packer assembly utilizes a gear drive with a hydraulic rotary union which permits the turning and vibrating standard to oscillate or rotate. The assembly also features a custom guide tube and drive arrangement to facilitate installation into a shallower machine pit.