TrayNeo
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3 × 30° / 3D

90° Cable Tray Bend Calculator · 3 × 30°

Plan a 90° horizontal turn with 3 equal 30° bends. Calculate every V-notch, fold station and stock length, then inspect cutting and forming in 3D.

Plan your turn

Viewed from above, with the incoming tray running left to right.

Edit dimensions ↑
123θ = 90° · 3 × 30° · d = 53.59 mm · 2d = 107.18 mm

Drag to rotate · pinch or scroll to zoom · Keep outer wall connected

Fold each joint by 30° for a total 90° turn. Check every seam and use a compatible connection detail.

Top-view cutting layout

123θ = 90° · 3 × 30° · d = 53.59 mm · 2d = 107.18 mm

d = 53.59 mm · 2d = 107.18 mm · at each cut

● Keep outer wall connected

Mark 3 symmetric V-notches. Remove each base wedge and matching inner-wall strip. Keep the outer wall at every tip connected. All stations and spacing are measured on the straight outer edge from the incoming end.

Marking stations on straight stock

  1. Fold axis 1: 350.00 mm
  2. Fold axis 2: 650.00 mm
  3. Fold axis 3: 950.00 mm
━ Cut base and inner wall━ Keep outer wall connected■ Removed material

90° Cable Tray Bend Calculator · 3 × 30°

Turn direction: Right · 3 × 30°

123θ = 90° · 3 × 30° · d = 53.59 mm · 2d = 107.18 mm
Tray width200.00 mm
Side height50.00 mm
Total turn angle90°
Length before first bend350.00 mm
Spacing between fold axes300.00 mm
Length after last bend350.00 mm
Each V half-width d53.59 mm
Each V full width 2d107.18 mm
Straight base length1,300.00 mm
Fold axis 1350.00 mm
Fold axis 2650.00 mm
Fold axis 3950.00 mm

For n = 3, each angle α = 90° / n = 30°. Half-notch d = W × tan(α / 2); each opening is 2d. Fold stations xᵢ = L + iP, i = 0…n−1. Stock length = L + (n−1)P + T. These are straight retained-edge dimensions.

Mark 3 symmetric V-notches. Remove each base wedge and matching inner-wall strip. Keep the outer wall at every tip connected. All stations and spacing are measured on the straight outer edge from the incoming end.

Thin-sheet, zero-radius geometry. Kerf, rolled lips, bend allowance, cable radius, joint strength and fastener specifications are not calculated. The direction-change angle is not the remaining included angle. Use the actual tray manufacturer’s connection detail.

Choose a horizontal bend method

Single-notch turn · retained outer wall ↗90° horizontal · two 45° bends ↗90° horizontal · three 30° bends 90° horizontal · four 22.5° bends ↗

Where to measure

Measure width across the base. End lengths run from the first/last fold axis to the corresponding end. Spacing P is the distance between neighboring axes on the straight outer wall, not inner clearance or a finished bend radius. The final change of direction is fixed at 90°.

Formula and construction

For n = 3, each angle α = 90° / n = 30°. Half-notch d = W × tan(α / 2); each opening is 2d. Fold stations xᵢ = L + iP, i = 0…n−1. Stock length = L + (n−1)P + T. These are straight retained-edge dimensions.

Worked example

With a 200 mm base width, each opening is 107.18 mm. At L = T = 350 mm and P = 300 mm, stock length is 1300 mm; the 3 axes are at 350, 650, 950 mm.

Method limits

Thin-sheet, zero-radius geometry. Kerf, rolled lips, bend allowance, cable radius, joint strength and fastener specifications are not calculated. The direction-change angle is not the remaining included angle. Use the actual tray manufacturer’s connection detail.

About this construction

This is TrayNeo’s ideal solid-base, retained-outer-wall construction. The half-angle relation is derived geometrically; adding equal bends does not establish a manufacturer-approved fitting, cable radius or connection specification.