Fitting groups for a complete cable route
A cable tray system is only installable when the straight sections and fittings are planned together. Horizontal bends change direction on the same level, while vertical inside and outside bends move the route between elevations. Tees and crosses create branches to equipment, panels or separate service corridors. Reducers and offsets connect different widths or route positions. Covers, splice plates, clamps and support accessories complete the installation package.
Every fitting should match the tray family and its dimensions. A fitting for a 300 mm perforated tray is not automatically suitable for a 300 mm ladder tray because the side rail, rung and connection details may differ. Confirm the tray type, clear width, side rail height, material, finish, angle and radius before placing an order. The fitting schedule guide explains how to tag each item on drawings and packing lists.
How to prepare a fitting schedule
Begin with the approved route drawing and mark every change in direction, elevation, width and tray type. Give each fitting a unique tag and record the grid or equipment location. A useful schedule includes fitting type, tray width, side rail height, material, finish, angle, radius, cover, divider, splice and bonding requirements. Include quantities for left-hand and right-hand transitions when the orientation matters.
Check the cable bend radius before selecting a fitting radius. A tight tray bend can create installation difficulty or exceed the cable manufacturer's requirement. Allow space around vertical drops, equipment entries and maintenance access. For data center and control routes, coordinate the fitting schedule with cable separation, airflow and future expansion. The data center design guide covers route planning questions that often affect fitting quantities.
Materials, joining and bonding
Common fitting materials include pre-galvanized steel, hot-dip galvanized steel, stainless steel and aluminum. Choose the finish with the straight tray and confirm fastener compatibility. For outdoor or corrosive locations, ask how cut edges, drilled areas and field modifications should be protected. Where dissimilar metals meet, review the connection method with the project engineer.
Splice plates and connection hardware should provide a stable mechanical joint, while bonding and continuity requirements should follow the approved electrical design. Do not assume that a mechanical connection alone satisfies every project grounding requirement. Use the grounding and bonding guide to organize the inspection and handover questions.
Quotation checklist for fittings
Send the tray type, width, side rail height, material, finish, angle, radius, elevation change, quantity and delivery destination. A marked-up drawing, bill of materials or even a route sketch can help the factory identify missing transitions. Yanggang can coordinate fittings with perforated, ladder and solid bottom tray sections and return a quotation for review through the contact page.