Pull through duct to prove joint integrity and test for out of round duct. 2,240 lbs. (9,964 N) load capacity. Wood body with steel end caps and pulling eyes.
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Wood Test Mandrels

Wood Test Mandrels
Wood Test Mandrels

Wood Test Mandrels
Duct Size (in.) N/A 4
Duct Size (mm) N/A 102
Body Length (in.) N/A 6 N/A 11-1/2
Body Length (mm) N/A 152 N/A 292
Max. O.D. (in.) N/A 3.56
Max. O.D. (mm) N/A 90
Load Capacity (lb.) N/A 2240
Load Capacity (N) N/A 9964