PierTech Systems' patented Heli Max pairs a displacement cone with a dual grouting module to form a sealed grout column around a helical shaft. PierTech says this gives micropile-like capacity while installing with a standard excavator, no spoils and little vibration.

PierTech Systems' patented Heli Max pairs a displacement cone with a dual grouting module to form a sealed grout column around a helical shaft. PierTech says this gives micropile-like capacity while installing with a standard excavator, no spoils and little vibration.
New products change what installers can offer and what projects cost.
Source: Helical Pile World. Summary written by the Helical Pile USA editorial team.