Seismic Bracket C Channel Roll Forming Machine | Zhongke - Botou China

Anti-Seismic Bracket Roll Forming Machine by Botou Zhongke

The Botou Zhongke anti-seismic bracket roll forming machine produces the punched C-channel struts used to build seismic bracing systems for building services. The line punches, roll forms, and cuts galvanized steel strip into C-channel profiles that hold pipes, air ducts, cable trays, and sprinkler lines in place during an earthquake. It runs under PLC touch-screen control at a listed speed of 10 to 15 m/min, and is built by Botou Zhongke Roll Forming Machine Factory in Botou, Hebei, China.

What Is an Anti-Seismic Bracket?

An anti-seismic bracket, also called a seismic support or seismic brace, is a steel support system that anchors a building's mechanical, electrical, and plumbing (MEP) services to the structure so they don't swing, break loose, or fall during an earthquake. The main component is a C-channel strut with slotted holes, usually 41 mm wide, joined with fittings, hinges, and threaded rods to form diagonal braces. Seismic bracing is required by building codes for MEP services in many earthquake-prone regions, which has made seismic bracket production a fast-growing market for roll forming lines.

How the Line Works

1. Decoiling. The decoiler holds the galvanized steel coil and feeds the strip into the line.

2. Leveling and feeding. The strip is flattened and fed precisely into the punching station.

3. Punching. A hydraulic punch or punching press cuts the slotted holes along the strip at a fixed pitch.

4. Roll forming. A series of roller stations forms the strip into the C-channel profile, including the inturned lips that hold channel nuts. Many lines also form serrations on the lips for better grip.

5. Cutting. A hydraulic cutter or saw cuts the channel to the programmed length.

6. Output. Finished channels are collected on the run-out table.

The operator sets length and quantity on the PLC touch screen, and the line runs automatically.

Typical Specifications

The figures below show a standard configuration for an anti-seismic bracket C-channel roll forming line. Zhongke builds each line to the customer's profile drawing, so confirm exact figures when requesting a quote.

Material
Material type: Pre-galvanized steel, hot-dip galvanized steel, or zinc-aluminum-magnesium coated steel
Material thickness: 1.5 to 2.5 mm

Finished Profile
Common C-channel sizes: 41 × 21, 41 × 41, 41 × 52, and 41 × 62 mm, or to customer drawing
Hole pattern: Slotted holes at fixed pitch, to customer drawing
Lip options: Plain or serrated
Length tolerance: ±1 mm

Decoiler
Capacity: 3 to 5 tons

Punching
Punching type: Hydraulic punching or punch press with servo feeder
Die material: Cr12MoV, hardened to HRC 58 to 62

Roll Former
Forming stations: 16 to 24
Shaft diameter: 60 to 80 mm
Roller material: GCr15 bearing steel, hardened
Main frame: Welded H-beam steel
Main motor power: 15 to 22 kW
Forming speed: 10 to 15 m/min, listed by Zhongke
Size change: Spacer adjustment, or automatic size change as an option

Cutting
Cutting type: Hydraulic cutting, or saw cutting for burr-free ends
Blade material: Cr12MoV, hardened to HRC 58 to 62

Control System
Control: PLC with touch screen
Power supply: 380 V, 50 Hz, 3-phase, customizable to local voltage

Warranty
One year on the machine and core components, per Zhongke's listing

Key Features

Complete inline production. Punching, forming, and cutting run in one line, turning coil into finished seismic channel ready for galvanizing or assembly.

Consistent hole pitch. Punching before forming keeps slot spacing accurate along the full channel length, so fittings line up on site.

Multiple channel sizes. Lines can be set up for several standard strut sizes by changing spacers or rollers.

Hardened tooling. GCr15 rollers and Cr12MoV punches and blades hold their shape through long production runs.

Touch-screen PLC control. Operators enter length and quantity, and the line runs and stops automatically.

Applications

This machine is built for manufacturers of seismic bracing systems, strut channel and unistrut suppliers, and MEP support system makers. Its channels are used to brace water and fire sprinkler pipes, HVAC ducts, cable trays, and electrical conduit in hospitals, schools, data centers, airports, subway stations, commercial buildings, and industrial plants.

About the Manufacturer

Botou Zhongke Roll Forming Machine Factory is based in Botou, Hebei Province, China. It builds roofing, purlin, floor deck, light steel keel, container panel, and guardrail roll forming machines, along with slitting and cut-to-length equipment.

Frequently Asked Questions

What does an anti-seismic bracket roll forming machine make?
It makes punched C-channel struts used in seismic bracing systems that secure pipes, ducts, and cable trays to a building's structure.

What size channels can it make?
Lines of this type commonly make 41 × 21, 41 × 41, 41 × 52, and 41 × 62 mm channels. Zhongke builds rollers to the customer's drawing.

What thickness steel is used for seismic brackets?
Seismic bracket channels are typically made from galvanized steel 1.5 to 2.5 mm thick.

How fast is the machine?
Zhongke lists a production speed of 10 to 15 m/min.

Does the line punch the slotted holes?
Yes. Seismic bracket lines punch the slotted holes inline before roll forming.

Is this the same as a strut channel or unistrut machine?
Yes, it's closely related. Seismic bracket channels are a type of strut channel, usually with specific hole patterns and sometimes serrated lips to meet seismic system requirements.

What warranty does Zhongke offer?
Zhongke lists a one-year warranty on the machine and core components.