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Tubes and Casings

Crimped and Swaged Mini Piling Tubes

Auger Cleaning Ropes

Concrete Placement Accessories

Tremie Tubes

Hollow Stem Couplings

Mini Piling Hollow Stem Couplings

-> Auger Bungs

Pre-slit Debonding Foam

Clip-on Pile Cage Spacers

Reinforcement Accessories

We supply a vast range of auger bungs including expandable auger bungs.

Expandable auger bungs

  • FITS ALL HOLLOW STEM AUGERS
  • ADJUSTS SIMPLY BY TIGHTENING/SLACKENING WING NUT
  • GUARANTEED WATERTIGHT FIT
  • ROBUST IN DESIGN

Auger bungs

The new expandable auger bung fits in all types of manufacturers’ hollow auger stems.

To attain a secure watertight fit, simply tighten the wing nut which expands the rubber seal to make an exact fit into the bore of the auger stem.

Many traditional auger bungs become slack when the auger stem becomes worn through continuous concrete abrasion and if they work loose during the drilling process the integrity of the pile is compromised. The expandable bung overcomes this problem.

The design of this robust bung ensures that damage on site or in transit is very unlikely, whereas many traditional bungs are inherently weak in their design and often get impaired before use. How many bungs are thrown in the skip because they have damaged plastic fins or distorted rubber components due to rough handling on site? (Compare the quantity of bungs you bought in the last year compared with the number of CFA piles you put in the ground). How many damaged bungs are fitted and allow the ingress of water?

The expandable bungs are available in two sizes: 4" (EB4) and 5" (EB5

Enquire now: Contact Us