For gb sweep benders – Gardner Bender Guide to Profitable Bending User Manual

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For GB Sweep Benders

1. For concentric bending, determine the first radius.

2. Using the charts on pages 29-31 corresponding to the conduit size

you are using, make smallest radius bend first, as covered
in instructions.

3. Make all succeeding concentric bends in the same manner;

noting each succeeding radius and its corresponding A, B
and C specifcations.

Other Radii Bends

For developing your own specifications for radii other than those shown
in charts, use the following formula:

1. Determine the number of bites you wish to make—approximated

from previous charts on pages 27-31.

2. Divide this (item 1) into the total number of degrees in your required

angle of bend. This will give you the number of degrees per bite you
will need to make. (Largest degree of bend with ENERPAC sweep
shoes in one bite is 30°.)

3. Multiply bend radius by .018 and number of degrees per bite from

step 2 (R x .018 x degrees per bite). This will give you the spacing
required between each bite.

4. Proceed to bend while following previous instructions.

For overbend corrections, see pages 26-27.

Offset Bend Instructions

for One-shot PVC-coated

Conduit Benders

1. Determine offset bend angle desired. Locate and mark first bend at

distance (D) minus (S) from end of conduit, following “Kick Bend
Instructions” 2 and 3 (page 22).

2. Find dimension (B) from Offset Chart, using the same angle of bend

used to locate the first mark. NOTE: for any required offset (H), the
maximum conduit size that can be bent to the angles given
are listed.

3. Mark off second bend measurement (B) on conduit as illustrated

(figure 1).

Marks (B) cannot be closer to ends of conduit than distance (L) or
ends will not be supported on the pivot shoes (see figure 3 and “L”
Requirement Chart).

4. Place conduit in bender, aligning first bend mark with arrow on

bending shoe. Proceed to bend, reading desired angle on optic
angle gauge.

5. Rotate conduit 180° and align second bend mark with arrow on

bending shoe. Proceed to make second bend, reading angle on
optic angle gauge.

Second Bend Mark

Figure 1

First

Bend Mark

Angle

Figure 2

Figure 3

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