Producing welded mesh columns (also called column reinforcement cages, column mesh, or rebar column mesh) usually involves specialized welding machines for construction reinforcement. Here’s a step-by-step overview of the production process:
1. Raw Material Preparation—— straightening and cutting machine
- Steel wire or rebar is the base material (commonly low-carbon steel, HRB400/500, etc.).
- Wire rods are first drawn to required diameter (usually 4–12 mm).
- If required, bars are straightened and cut to length.
1. The straightening and cutting machine is mainly applied in straightening and cutting cold-rolled reinforcement bars, round bars, twisted steel bars, etc.
2. This straightener and cutter adopts a reducer to ensure reliable bar pulling-in and avoid scratches or rigidity loss. After the straightening, the surface of the linear material shall be free from scratches.
3. Straightening wheels, square blade, and round blade are made of high-quality alloyed steel with proper heat treatment (quenching) to ensure good performance under heavy loads and long working life.
4. The machine’s operation is automatic. It is a continuous working system and is equipped with an automatic counting shutdown device. One worker can take care of multiple machines, which enhances production efficiency.
2. Longitudinal Bar Arrangement for Column Machine
- The longitudinal rebars (vertical rods) are put manually to the column mesh machine.
- They define the height and load-bearing strength of the column.
3.Cross Wire Feeding
- The column mesh cross wire is fed from a 1T capacity spool.
- The cross-wire feeding distance is controlled by the servo motor.
4. Automatic Welding
- The welded mesh column machine (also called a reinforced column mesh welder) uses multi-point resistance welding:
- Cross wires are welded to longitudinal bars at preset intervals.
- Welding is simultaneous at all contact points → ensuring strength, speed, and accuracy.
- The machine is programmable → spacing can be adjusted for different column sizes.
5. Shaping/ Bending – Column Mesh Bending Machine
After welding, the mesh strip can be:
Bended into a cage shape (for square column reinforcement)
Mechanical bending machine are used to bend the welded mesh into a closed column form.
6. Quality Checks for column mesh
- Check weld strength, bar spacing, and dimensions.
- Surface can be galvanized or epoxy-coated if corrosion resistance is required.
7. Applicant for Column Mesh
Column mesh (welded column reinforcement) is mainly used in reinforced concrete (RC) structures.
1. Structural Columns in Construction
- Used as reinforcement cages inside RC columns (square, rectangular, or circular).
- Provides compressive strength and ductility for high-rise buildings, bridges, and industrial structures.
2. Prefabricated Buildings
- Column mesh can be prefabricated in factories → transported to construction sites.
- Increases construction speed and ensures consistent quality in precast concrete columns.
3. Civil Infrastructure Projects
- Bridges, flyovers, tunnels, dams, subways → use column reinforcement for stability.
- Especially useful where earthquake resistance and load-bearing capacity are required.
4. Residential & Commercial Buildings
- Used in beams, columns, and shear walls.
- Ensures proper spacing and bonding of vertical rebars.
- Reduces manual tying work → faster project timelines.
5. Special Applications
- Foundations & pile caps – column cages are placed into drilled piles before pouring concrete.
- Columns in industrial plants & warehouses – for heavy load-bearing.
- Seismic zones – column mesh improves crack resistance and energy absorption.
Advantages of producing columns with welded mesh:
- Much faster than manual tying with binding wire.
- Stronger and more accurate dimensions.
- Saves labor cost and ensures uniform quality.
If you want more information about the reinforced concrete column mesh welding machine, please contact us now!
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