Duckbill Earth Anchors

duckbill

Models
Recommended Working Load in Normal Soils*

#40 Anchor
300 lbs (135 kg) Holding capacity in normal soils
480 lbs (216 kg) Wire rope capacity
20 in (.5m) Installation depth
#68 Anchor
1,100 lbs (485 kg) Holding capacity in normal soils
1,700 lbs (765 kg) Wire rope capacity
30 in (.85m) Installation depth
#88 Anchor
3,000 lbs (1,350 kg) Holding capacity in normal soils
6,100 lbs (2,745 kg) Wire rope capacity
42 in (1.05m) Installation depth
#138 Anchor
5,000 lbs (2,250 kg) Holding capacity in normal soils
9,800 lbs (4,410 kg) Wire rope capacity
60 in (1.5m Installation depth

Anchor holding capacity will vary in different soils. Increased capacities can be expected in harder soil classes (numerically higher blow count classifications) and lower capacity can be expected in the softer soil classes (numerically lower blow count).

Anchors are rated in an average (class 5) soil condition. The rating is meant to be a reference for anchor selection. Proof-loading is the only way to insure the exact capacity of each installation.

Normal Soil is defined as follows:

Most Common Soil Types: Dense Fine Sand, Very Hard Silts and Clays, Dense Clays, Sands, Gravel, Hard Silts and Clays


Size / Quantity






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