Solar
112k piles
200-MW utility-scale array, AZ
112,000 piles. Installed 1,400/day per crew. No concrete, no cure — schedule held within one day.
Engineering resources.
Specifications, capacities, certifications, the science of inertia welding, downloadable documents and the case studies behind them.
System specs at a glance
- Shaft sizes
- 2.875" · 3.5" · 4.5" · 5.5" · 7.0" · 8.625" · 10.75" OD
- Steel grade
- ASTM A500 Grade B / C — High-strength tubular
- Helix sizes
- 8" · 10" · 12" · 14" · 16"
- Helix plate
- 1/2" standard · thicker on request · true-pitch formed
- Coating
- Hot-dip galvanized to ASTM A123 (≥ 3.9 mil)
- Capacity
- 30,000 – 250,000 lb axial, project-engineered
- Torque correlation
- Qu = Kt × T, recorded pile-by-pile
- Service life
- 75+ years typical, with engineered sacrificial allowance
- ICC-ES
- ESR-3982 listed (piles & piers)
- Quality system
- ISO 9001 audited · destructive batch testing
Patented
Inertia weld
A forged, full-strength joint.
Solid-state friction welding produces a continuous forged grain across the helix-to-shaft joint — no filler metal, no porosity, no heat-affected zone. The cornerstone of our system.
Everything you need for submittal.
Engineering Design Manual
Helical pile and push pier design, worked examples, installation guidance, corrosion and product data.
Open PDFICC-ES ESR-3982
Evaluation report for Helical Anchors foundation systems, including code compliance and bracket data. Revised June 2026.
Open PDFHelical Pile & Anchor Specifications
Manufacturer specifications covering materials, submittals, installation records and load testing.
Open PDFRound Shaft Product Rating Chart
Shaft sizes, wall thickness, torsional strengths, torque factors and calculated capacities.
Open PDFISO 9001:2015 Certificate
Quality management system certificate no. 19734, issued January 2026; printed expiry January 2029.
Open PDFEN 1090 Factory Production Control
BSI certificate 2797 CPR 827541 for structural steel manufacturing and welding up to Execution Class 2.
Open PDF
SCI Assessed Certificate
Design resistance and performance assessment for helical pile systems. Printed end date: August 19, 2026; confirm current status with SCI.
Past printed end date — not presented as current certification.
Open PDFProof in the ground.
Commercial
0 downtime
Mid-rise hospital, MN soft clay
Foundations engineered around an active facility. Vibration-free install allowed adjacent OR to stay operational.
Industrial
175k lb
Refinery tank farm, TX
Heavy axial loads on liquefiable soil — torque-correlated to verify 175k lb working capacity pile-by-pile.
Frequently asked.
Need a doc, a spec, or a second opinion?
Our engineering desk answers within one business day. Send a soil report, a load, or just a question — we'll get you an answer that lands.
