JT40/JT40 All Terrain Operator’s Manual Prepare - 93
Plan Bore Path
Bend Radius
JT40 Power Pipe
®
HD drill pipes have a tested
minimum bend radius of 146’ (44.5 m). This means
that a 90-degree bend in the bore path:
• has a radius (A) of 146’ (44.5 m)
• requires approximately 229’ (69.8 m) of drill pipe
(B).
JT40 HIWS1 drill pipes have a tested minimum bend
radius of 145’ (44.2 m). This means that a 90-degree
bend in the bore path:
• has a radius (A) of 145’ (44.2 m)
• requires approximately 228’ (69.5 m) of drill pipe
(B).
AT
JT40 All Terrain drill pipes have a tested minimum bend radius of 170’ (51.8 m). This means that a 90-
degree bend in the bore path:
• has a radius (A) of 170’ (51.8 m)
• requires approximately 267’ (81.4 m) of drill pipe (B).
NOTICE: Bending drill pipe more sharply than recommended will damage the pipe and cause failure
over time.
• If bend radius is reduced, drill pipe life is reduced.
• If bend radius is increased, drill pipe life is increased.
IMPORTANT: Use the charts on the next page to keep bends within safe limits.
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