Cable Tray Roll Forming Machines

The machine bed is split into left and right independent forming banks mounted on linear precision guide rails. An electric servo motor drives synchronized lead screws to expand or narrow the distance between the two banks, adjusting finished tray width (from 100 mm to 800 mm) via touchscreen input in under 5 minutes without changing rollers.

Lines produce ventilated perforated cable trays, solid-bottom cable troughs, ladder tray C-shaped side rails, and snap-on top cover lids. Flange heights typically range from 50 mm to 150 mm, with rolled return lips designed to receive snap-on covers.

Standard materials include pre-galvanized steel (DX51D+Z275), hot-rolled pickled steel (Q235/SS400 for post-galvanizing), austenitic stainless steel (AISI 304 and 316L), and structural aluminum alloys (5052-H32), in thicknesses from 1.0 mm to 2.5 mm (20-gauge to 12-gauge).

Ventilation slot patterns (oval slots, diamond holes, louvers) are punched using precision progressive carbide dies on a wide-bed punch press. Tight punch-die clearances (6% to 8% of sheet thickness) and die polishing prevent metal burrs, ensuring smooth edges that will not abrade electrical cable insulation.

Cover lids have different flange angles and dimensions. Manufacturers typically use a dedicated compact lid roll forming machine or supply interchangeable roller cassettes that install onto the universal drive base to roll matching flat and peaked cover profiles.

Stop-to-cut hydraulic shearing with contoured blades matching the tray web and flanges is standard, providing clean square cuts across various tray widths. For dedicated high-volume lines running fixed sizes, servo flying shears achieve higher continuous throughput.

Buyers should verify maximum sheet width and thickness (up to 2.5 mm), motorized width adjustment range (100–800 mm), side flange height range (50–150 mm), punch die hole pattern drawing and tonnage (typically 125T to 200T), roller material (Cr12MoV vacuum hardened), and cut-off blade adjustability.