Cable Tray Directional Fittings / Cable Tray Bend & Branch Fittings 90° Horizontal Elbow / Flat 90 Bend Horizontal Tee Vertical Up Elbow / Inner Riser Bend Vertical Down Elbow / Outer Drop Bend

1. Product Overview

Cable tray elbows, tees, crosses, vertical risers and reducers are collectively named cable tray directional & branching fittings. They perfectly match all standard ladder, perforated, solid trough, fireproof, stainless steel, FRP and PU cable trays. These fittings adjust wiring direction, realize cable splitting & convergence, adapt elevation changes and connect trays of different widths. Fastened with splice plates and bolts, they guarantee integral structural stability and continuous earthing, ideal for complex wiring layouts in factories, data rooms and utility tunnels.

2. Materials & Surface Finishes

All fittings adopt the same material & anti-corrosion treatment as matching straight trays to keep consistent performance of the whole routing system:

1. Hot-dip galvanized carbon steel: Cost-effective for indoor factories & dry underground parking lots;
2. 304 / 316 stainless steel: Anti salt-spray & acid resistance for coastal, chemical, sewage and food workshops;
3. Fire retardant powder coated steel: Matched with fireproof trays, fire resistance rating 0.5–2h for fire protection projects;
4. Aluminum alloy: Lightweight overhead, photovoltaic and marine projects, no eddy current heating;
5. FRP / Polyurethane non-metal fittings: Intrinsically insulated, rust-free for heavy corrosion & explosion-proof zones.

3. Full Product Range & Functions

(1) Horizontal Elbows (Same-plane Direction Change)

1. 90° Horizontal Elbow: Standard right-angle turn for wall & corridor corners, most widely used;
2. 45° Horizontal Elbow: Gentle turning to reduce cable bending stress, protect large-section power cables;
3. 30° / 60° Horizontal Elbow: Fine angle adjustment for narrow confined spaces.
Arc forming with standard cable bending radius to avoid cable insulation damage.

(2) Vertical Elbows (Elevation Transition)

1. Vertical Up Elbow (Inner Riser): Lift tray routing upward to cross beams or raised ceilings;
2. Vertical Down Elbow (Outer Drop): Lower tray routing to pass under pipes or floor interlayers.

(3) Tee Fittings (1-to-2 Cable Branching)

1. Horizontal Tee: 1 inlet & 2 outlets on same horizontal plane, for branch wiring from main tray to equipment; equal width & reducing tee available;
2. Vertical Up Tee: Horizontal main line with upward layered branch;
3. Vertical Down Tee: Horizontal main line with downward layered branch.

(4) Horizontal Cross (4-way Junction)

Four-way cross connection on single plane, used for dense cable intersection points in data centers and municipal tunnels to organize multi-direction cables neatly.

(5) Reducer Coupling (Transition for Different Tray Widths)

Size reducer to connect wide & narrow trays, including concentric reducer and eccentric reducer for smooth cable passing without jamming.

(6) Auxiliary Directional Fittings

Vertical cross, inner/outer vertical bend, reducing tee, end cap (seal tray terminal against dust & rodents), divider separator (separate power & weak current cables inside fittings).

4. Core Product Advantages

1. Perfect dimensional matching: Uniform bending size, side height and punching holes align seamlessly with straight tray sections without warping joints;
2. Large smooth arc forming: No sharp inner edges to prevent scratching high-voltage & fiber cable insulation;
3. High integral structural strength: Thickened plate stamping & bending, anti-deformation under heavy suspended load;
4. Continuous electrical conduction: Metal fittings form complete earthing circuit with splice plates for lightning & static protection; non-metal types provide full insulation for explosion-proof applications;
5. Uniform anti-corrosion & fire performance: Same surface treatment as main trays, no weak corrosion points along the whole wiring path;
6. Complete size range: Custom sizes from 100×50mm to 800×200mm, special angles & oversized profiles available on request.

5. Matching Fasteners

Supporting splice plates, M8/M10 hex bolts, flat washers and spring lock washers supplied as complete sets for easy assembly.

6. Application Range

Data centers, commercial office buildings, underground parking lots, large industrial workshops, municipal utility tunnels, coastal chemical plants, photovoltaic energy storage stations, metro tunnels, fire power distribution systems, food & pharmaceutical clean workshops.