Rock & Earth Auger Anchors
Heavy-duty ground anchors with helix designs optimized for rock formations, hard soils, clay, and mixed earth conditions.
Oliver Technologies manufactures heavy-duty rock and earth auger anchors designed specifically for manufactured and mobile home tie-down installations in challenging soil conditions. Since 1995, our Hohenwald, Tennessee facility has produced auger anchors with single and double helix configurations that provide superior holding power in rock formations, compacted clay, and mixed earth compositions. Our earth anchors meet HUD 3285 installation standards and are engineered to withstand wind zone requirements across all three US wind zones, making them the preferred choice for installers and dealers nationwide.
Installation Instructions
Engineered for the Toughest Ground Conditions
Our rock and earth auger anchors are manufactured with precision-formed helixes that cut through hard soils, rocky terrain, and dense clay where standard anchors fail. Each anchor is engineered to provide maximum holding power while maintaining ease of installation with standard power equipment.
Available in multiple helix configurations — single helix for moderate soils and double helix for maximum holding strength in challenging ground conditions — our auger anchors deliver reliable tie-down performance for manufactured homes, mobile homes, sheds, carports, and storm shelters.
Applications
Rock and earth auger anchors are the go-to solution for installations where soil conditions demand superior anchor design. Common applications include:
- Manufactured and mobile home tie-down systems
- Shed and outbuilding anchoring
- Carport and canopy anchoring
- Storm shelter tie-downs
- General ground anchoring in hard or rocky soils
Key Features
Specifications
Rock & Earth Auger Anchor Selection Chart
| Soil Class & Test Value | Product # | Height | Width | Helix & Width | Type |
|---|---|---|---|---|---|
| 1 - N/A (solid rock) (A) | OT30CDP | 30" | 3/4" | 1 - 6" | Painted |
| 2 - 550+ inch lbs. (B) | OT3044AP | 30" | 5/8" | 2 - 4" | Painted |
| 2 - 550+ inch lbs. (C) | OT3044BP | 30" | 3/4" | 2 - 4" | Painted |
| 2 - 550+ inch lbs. (D) | OT3044BPC | 30" | 3/4" | 2 - 4" | Painted, Cap Welded |
| 3 - 350–550 inch lbs. (E) | OT3646BP | 36" | 3/4" | 1 - 4" & 1 - 6" | Painted |
| 3 - 350–550 inch lbs. (F) | OT3646BG | 36" | 3/4" | 1 - 4" & 1 - 6" | Galvanized |
| 3 - 350–550 inch lbs. (G) | OT3646BPC | 36" | 3/4" | 1 - 4" & 1 - 6" | Painted, Cap Welded |
| 3 - 350–550 inch lbs. (H) | OT4244BP | 42" | 3/4" | 2 - 4" | Painted |
| 4a - 276–350 inch lbs. (E) | OT3646BP | 36" | 3/4" | 1 - 6" | Painted |
| 4a - 276–350 inch lbs. (F) | OT3646BG | 36" | 3/4" | 1 - 6" | Galvanized |
| 4a - 276–350 inch lbs. (H) | OT4244BP | 42" | 3/4" | 2 - 4" | Painted |
| 4a - 276–350 inch lbs. (I) | OT486A | 48" | 5/8" | 1 - 6" | Galvanized |
| 4a - 276–350 inch lbs. (J) | OT486B | 48" | 3/4" | 1 - 6" | Galvanized |
| 4b - 175–275 inch lbs. (K) | OT607B | 60" | 3/4" | 1 - 7" | Galvanized |
Always verify soil classification with a torque test before anchor selection. Consult local permitting authority for wind zone requirements.
Frequently Asked Questions
What types of soil are rock and earth auger anchors designed for?
Do these anchors meet HUD standards for manufactured homes?
What is the difference between single helix and double helix anchors?
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