Greenlee / A Textron Company
7
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
1800 Mechanical Bender
OFFSET DISTANCE
[
2 4 6 8 10 12 14 16 18 20 22
Max Conduit Size
3/4"
Center-to-Center
7-3/4" 15-7/16 23-3/16" 30-15/16" 38-5/8" 46-3/8" 54-1/16" 61-13/16" 69-9/16" 77-1/4"
85"
Max Conduit Size
3/4"
Center-to-Center
8" 12" 16" 20" 24" 28" 32" 36" 40" 44"
Max Conduit Size
1/2"
Center-to-Center
8-1/2" 11-5/16" 14-1/8" 16-15/16"
19-13/16" 22-5/8" 25-7/16" 28-1/4" 31-1/8"
To Locate Bending Marks for Offsets
15°
30°
45°
Offset Dimensions Table
1"
1"
1"
To calculate the center-to-center distance for any other offset bend, multiply:
(for 15° bends) Height of the Obstruction x 3.86
(for 30° bends) Height of the Obstruction x 2
(for 45° bends) Height of the Obstruction x 1.4
Figure X Table
Conduit Size
Approx. “X”
Distance
Minimum Distance
from End of Conduit
1/2"
2-1/2"
1"
3/4"
3-1/4"
1"
4-1/4"
1. Measure the distance from conduit coupling to the edge of the obstruction and mark the conduit. This is mark 1.
2. See the Figure X Table. Subtract X inches from mark 1 and mark the conduit. This is mark 2.
3. Measure the height of the obstruction. This is the offset distance. Refer to the Offset Table to find the center-to-
center distance at the intersection of the top row (offset distance) and the first column (offset angle). Measure
and mark the center-to-center distance from mark 2. This is mark 3.
4. Insert the conduit into the bender with mark 2 aligned with the front edge of the hook. Make the first bend.
5. Without removing the conduit from the bender, rotate the conduit 180°. Align mark 3 with the front edge of the
hook and make the second bend.
Figures are approximate
Figures are approximate
←
X
→
←
T
H
GI
E
H
→
ANGLE
MARK 1
MARK 3
MARK 2
→
→
←
Center-to-Center Distance
→
