To Locate Bending Marks for Offsets
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.
Figure X Table
Approx. "X"
Conduit Size
Distance
1/2"
2-1/2"
3/4"
3-1/4"
1"
4-1/4"
Figures are approximate
Offset Dimensions Table
OFFSET DISTANCE [
Max Conduit Size
15°
Center-to-Center
Max Conduit Size
30°
Center-to-Center
Max Conduit Size
45°
Center-to-Center
Figures are approximate
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
Greenlee Tools, Inc.
ANGLE
Minimum Distance
from End of Conduit
1"
2
4
6
3/4"
7-3/4"
15-7/16
23-3/16"
30-15/16"
3/4"
8"
12"
1/2"
8-1/2"
11-5/16"
1800 Mechanical Bender
MARK 2
←
←
Center-to-Center Distance
8
10
12
14
1"
38-5/8"
46-3/8"
54-1/16"
16"
20"
24"
28"
14-1/8"
16-15/16"
19-13/16"
7
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
MARK 1
MARK 3
→
X
→
16
18
20
61-13/16"
69-9/16"
77-1/4"
1"
32"
36"
40"
1"
22-5/8"
25-7/16"
28-1/4"
22
85"
44"
31-1/8"