Plain and slotted C strut channels are both types of C strut channels, widely used in construction and industrial applications to provide structural support for wiring, piping, HVAC systems, and other mechanical components. The main difference between the two lies in whether or not the channel has pre-drilled slots.

1. Plain C Strut Channel:

• Design: The channel has a continuous, solid back with no pre-drilled holes or slots.
• Material: Typically made of steel, aluminum, or stainless steel, with different finishes such as pre-galvanized, hot-dip galvanized, or powder-coated for corrosion resistance.
• Size: Common sizes include 1 5/8 inches wide (41 mm), and depths vary depending on the load-bearing capacity.
• Usage:
  • Ideal for heavy-duty applications where greater strength is needed because the solid back provides more rigidity.
  • Used where drilling or custom cutting is required to place holes or mounting points at specific locations.
  • Common in structural framing systems, racks, and other support frameworks where flexibility in mounting is not necessary.

2. Slotted C Strut Channel:

• Design: The back of the channel has evenly spaced slots or holes, usually in standardized patterns. These slots allow for adjustable installation of nuts, bolts, and other fasteners.
• Material: Also made from steel, aluminum, or stainless steel, with similar finishes to plain channels.
• Size: The standard size is also 1 5/8 inches wide (41 mm), with varying depths and slot sizes.
• Slot Patterns:
  • Longitudinal Slots: Slots run along the length of the channel.
  • Punched Holes: Uniformly spaced round or oval holes for fasteners.
• Usage:
  • Used in applications where adjustable mounting is needed, as the slots make it easier to attach and adjust brackets, clamps, or other accessories.
  • Ideal for supporting electrical conduits, pipe installations, or HVAC systems where components may need to be adjusted or realigned without additional drilling.
  • Common in electrical and plumbing installations, where flexibility in mounting positions is required.

Common Uses for Both:

• Support Systems: C strut channels are widely used for mounting, bracing, and supporting mechanical, electrical, and plumbing systems.
• Racking and Framing: Both types are used to create lightweight, modular framing systems for shelving, equipment racks, and other structures.
• Mounting Conduits and Pipes: The channels help in mounting pipes, wiring, and other infrastructure components to walls, ceilings, or floors.

The machine working flow

Hydraulic decoiler--Feeding&levelling----roll forming---punching slotted hole---cutting---finished products out

This machine is to make strut channel profiles

• • Standard widths are usually 41 mm (1 5/8 inches).
  • Depths vary, with common sizes being 21 mm (7/8 inch) and 41 mm (1 5/8 inch) for light to medium-duty applications.
  • Can be produced in longer lengths, typically 10 feet (3 meters) or 20 feet (6 meters), and can be cut to size as needed.