How to make reinforcing mesh?

1. How to choose raw materials?

JIAKE factory designs and manufactures from 3mm rolled steel mesh to 12mm heavy steel plate welding line, we cover a full range of construction steel mesh welding machinery! In addition, we also produce steel processing equipment, such as steel bar bending machines and steel rebar production lines, to provide customers with the best solution for production efficiency.

When making 3-12mm reinforcing mesh, the selection of raw materials needs to consider the following key factors, including the material, diameter, surface treatment, and other technical requirements of the steel bar. Here are a few key points when selecting raw materials:

1. Material of steel bar

Low carbon steel (Q195, Q235): Low carbon steel is a common steel bar material with good weldability and formability. For reinforcing mesh production, the mechanical properties of Q235 steel bars are usually sufficient to meet conventional engineering requirements and are suitable for general construction projects.
High-strength steel (such as HRB400, HRB500): For building structures with higher load-bearing requirements, high-strength steel bars can be selected. These steel bars have higher tensile strength and yield strength and are suitable for projects with higher requirements for earthquake resistance and durability.
Stainless steel bars: In humid or highly corrosive environments, such as marine environments or chemical industrial facilities, stainless steel bars may be required to ensure the corrosion resistance and long-term stability of the reinforcing mesh.

2. The diameter of the steel bars

3-12mm steel bars: According to actual needs, the diameter of the steel bars should be selected taking into account the bearing capacity requirements of the project and the function of the reinforcing mesh. Thinner steel bars (3mm, 5mm) are suitable for light loads and small structures, while thicker steel bars (10mm, 12mm) are suitable for larger loads and large buildings. Usually, the design of the reinforcing mesh will determine the spacing and diameter according to the structural requirements.

3. Surface treatment of steel bars

Smooth steel bars: Suitable for the production of reinforcing mesh in general environments, with good weldability and processability.
Ribbed steel bars: Ribbed steel bars can enhance the bonding strength with concrete and are usually used in projects with higher strength requirements. For reinforcing mesh, ribbed steel bars can effectively improve the bearing capacity and crack resistance of the mesh.
Coated steel bars: If the project environment has high requirements for corrosion resistance (such as coastal areas or chemical industrial sites), galvanized or coated steel bars can be selected to improve their corrosion resistance.

4. Strength grade of steel bars

Ordinary steel bars (HRB335/HRB400): Suitable for general construction purposes and can meet the needs of most concrete structures.
High-strength steel bars (HRB500): For projects with heavy loads or where higher strength requirements are required for reinforcing mesh, high-strength steel bars can be selected to ensure higher load-bearing capacity.

When making 3-12mm reinforcing mesh, the selection of raw materials should comprehensively consider the material of the steel bar (mild steel, high-strength steel, stainless steel), steel bar diameter (3mm to 12mm), surface treatment (smooth, ribbed, galvanized steel bar), strength grade (HRB335, HRB400, HRB500), environmental adaptability and other factors. Reasonable selection of raw materials for steel mesh can not only ensure the strength and stability of the structure but also improve the durability and safety of the building.

2. How are ribbed steel bars formed?

If the customer requires smooth steel bars, they can be directly welded into reinforcing mesh. However, most customers will use ribbed steel bars. Ribbed steel bars have obvious advantages over smooth steel bars in construction projects, mainly reflected in their bonding with concrete, crack resistance, durability, and bearing capacity. The following are the main advantages of ribbed steel bars over smooth steel bars:

1. Stronger bonding

Enhanced bonding with concrete: The surface of ribbed steel bars has obvious ribs, which can effectively increase the bonding between steel bars and concrete. This enhanced bonding allows steel bars and concrete to work better together when subjected to force, improving the integrity and stability of the structure. Smooth steel bars have a smooth surface and poor bonding with concrete, which is prone to slippage, resulting in structural instability.
Prevent slippage: Due to the ribs of ribbed steel bars, the steel bars can be more firmly embedded in the concrete, reducing the slippage between the steel bars and the concrete. This is especially important in building structures that carry large loads.

2. Improve crack resistance

Reduce the occurrence of cracks: Due to the higher bonding strength, ribbed steel bars can effectively prevent cracks caused by load, temperature changes, or humidity fluctuations in concrete structures. In this case, plain steel bars may cause early cracking or crack expansion of concrete because of its insufficient bonding with concrete.
Improved tensile strength: Ribbed steel bars can withstand tensile forces more effectively and provide stronger support when concrete is in tension, thereby reducing the risk of concrete cracking.

3. Higher bearing capacity

Improved structural strength: The ribs of ribbed steel bars not only increase the bond with concrete but also enhance the tensile strength and durability of the steel bars. Due to the stronger bond between the steel bars and concrete, ribbed steel bars can carry a larger load, which improves the bearing capacity of the overall structure.
Suitable for projects with large load-bearing capacity: In structures such as high-rise buildings, large bridges, and tunnels, the use of ribbed steel bars can meet higher strength and safety requirements, while plain steel bars often do not have sufficient performance in these high-strength projects.

4. Better seismic performance

Improved seismic resistance: Due to stronger bonding and higher strength, ribbed steel bars can work better together under sudden loads such as earthquakes, reducing structural damage caused by vibration. Ribbed steel bars can effectively enhance the seismic performance of the structure and reduce the separation of steel bars and concrete caused by vibration.
Improve structural stability: In seismic design, ribbed steel bars can more effectively resist longitudinal and transverse loads and improve the overall stability of the building.

5. Durability and longer service life

Prevent steel corrosion: The stronger bond between ribbed steel bars and concrete reduces the erosion of steel bars by moisture and harmful substances, thereby reducing the risk of steel corrosion. Especially in humid or corrosive gas environments, ribbed steel bars have stronger corrosion resistance and can extend the service life of concrete structures.

6. Cost-effectiveness

Reduce the amount of concrete: Since ribbed steel bars can improve the bonding strength of concrete, the amount of steel bars and concrete can be reasonably reduced during design, thereby reducing construction costs to a certain extent.
Improve construction efficiency: Ribbed steel bars do not require additional attachments to enhance the bonding strength with concrete during installation. Compared with smooth steel bars, the time and material consumption during construction are lower, and the overall construction efficiency is higher.

Ribbed steel bars have stronger bonding strength, crack resistance, and bearing capacity than smooth steel bars, and also show obvious advantages in seismic resistance, durability, and service life. The use of ribbed steel bars can improve the overall safety and stability of concrete structures, so they are widely used in high-rise buildings, bridges, tunnels, infrastructure, and other projects, and are an indispensable and important material in modern construction. However, due to the lack of such bonding force, plain steel bars can usually only be used in some projects with lighter loads and lower requirements.

The two/three ribs steel bar production line is a mechanical device specially used for processing steel bars with two/three longitudinal ribs (two/three ribs steel bars). It is widely used in steel bar processing in construction, bridges, tunnels, and other projects, especially in the production of steel mesh, steel frames, and other prefabricated components.

Cold Rolling Steel Rebar Making Machine

The two/three ribs steel bar production line is a mechanical device specially used for processing steel bars with two longitudinal ribs (two/three ribs steel bars). It is widely used in steel bar processing in construction, bridges, tunnels, and other projects, especially in the production of steel mesh, steel frames, and other prefabricated components.

1. Pay-off stand

The main function of the cannon-type pay-off stand is to lead heavy metal wires (such as rebar, steel wire, etc.) from the reel or drum and deliver them to the processing equipment or subsequent process flow at an appropriate speed and tension. The rebar production line, ensures a smooth supply and uniform tension of the rebar, avoiding production interruptions caused by unstable feeding.

2. Rust removal machine

The rust remover contains 10 brush wheels, which come into contact with the metal surface through high-speed rotation to remove surface rust.

3. Lubrication system

Wire drawing powder is placed in the lubrication system. Wire drawing powder forms a thin film to reduce the friction between the metal wire rod and the wire drawing die and equipment parts. The reduced friction between the metal and the die helps to reduce damage to the metal surface and avoid surface scratches and cracks caused by excessive friction.

4. Reducing mill

The reducing mill plays a vital role in the production process of ribbed steel bars. The reducing mill rolls the round steel bars into ovals and then rolls the ribs. For the production of ribbed steel bars, the reducing mill can effectively control the diameter and surface quality of the wire rod, ensuring stability and efficiency in the production process.

5. Rib rolling system

The rib rolling system is mainly used to form a specific rib structure on the surface of the steel bar. The ribs on the surface of the steel bar are engraved on the steel bar through the rolling process. This structure helps the bond between the steel bar and the concrete and enhances its overall performance. The rib rolling mold is made of alloy, which is wear-resistant and has a long service life. The rib rolling speed is 120-180m/min, which improves productivity.

6.Straightening machine + servo flying shear

The combination of a straightening machine and a servo flying shear provides significant advantages in steel bar processing and cutting production, especially in terms of precision, efficiency, and automation. These two devices are usually used in the processing of steel bars. The straightening machine is used to adjust the wire rod or coiled steel bars into a straight shape, while the servo flying shear is used to accurately cut these straightened steel bars. The servo flying shear is capable of high-speed and precise cutting with a shearing speed of Max.120M/min, and can usually complete the cutting process in a very short time. Compared with traditional mechanical shearing, this can significantly improve production efficiency.

7. Collection Unit

Blanking rack: Usually the length of the blanking rack is 1-6/1-12M, which is used to collect the cut ribbed steel bars.

I-wheel collection: If the customer needs coiled steel bars, the ribbed steel bars do not need to go through the straightening machine + servo flying shear system. The I-wheel system can efficiently collect a large number of ribbed steel bars into coils to meet the needs of continuous production lines. This facilitates subsequent storage, transportation, and further processing. Compared with the manual collection, the I-wheel collection system greatly improves production efficiency.

Machine Video:

3. How to make reinforcing mesh?

The first option:

is when the diameter of the welded steel bar is 5-12mm and the wire feeding method is steel bar.

Line Wire Feeding System:
1. The line wire is fed into the wire feeding system by workers through steel pipes, the spacing of which is set according to the mesh size.
2. The wire passes through the wire inlet, against the baffle, and the top of the wire is aligned.
3. The wire inlet has a clamping device to accommodate different wire diameters.
4. The servo motor controls the wire feeding system and it enters the welding unit in a straight line.
During the welding process, the wire feeding system will go back and be refilled by the operator, doubling the production speed!

Cross Wire Feeding System:

1. The servo motor sucks a handful of wire at a time, weighing 1T.
2. Panasonic servo motor + planetary reducer controls wire drop.

Welding Unit:

The reinforcing mesh welding machine adopts European pneumatic welding technology—a Japanese 90-times-force cylinder. Pneumatic welding technology can provide higher welding speed and shorter cycle time. Continuous welding can be achieved on the automated production line, thereby greatly improving production efficiency. One cylinder controls one welding electrode. The welding electrodes are copper blocks and can be used on all six sides. Copper sheets connect the upper and lower electrodes, and the conduction speed is extremely fast. The welding electrode cooling method is water cooling.

Automatic mesh pulling system

1. The automatic mesh pulling system runs to the welding unit when welding the first horizontal wire, and gradually pulls the mesh according to the mesh width and length of the mesh.

2. The automatic mesh pulling system is controlled by a Panasonic servo motor. Synchronous belt drive, fast speed, and low noise.

3. The SMC cylinder controls the metal hook to fix the mesh up and down.

4. Can pull the mesh in a cycle.

Automatic Mesh Dropping System + Transport System/Sheet Turning Process
The combination of the automatic mesh dropping system and the transportation system/Sheet Turning Process can greatly reduce manual operation and realize the automatic mesh dropping, automatic transportation, and automatic flipping of the steel mesh.
The automatic mesh dropping system makes the mesh neatly arranged and convenient for manual bundling. An automatic packaging system can be added for later use.
The automatic transportation system is driven by a motor and a chain transmission to convey the mesh, which is convenient for manual bundling and transportation.
The automatic flipping process flips up the mesh spacers with thicker wire diameters, reduces the stacking height of the mesh, and saves transportation space.
The combination of the automatic mesh dropping system and the transportation system/Sheet Turning Process greatly reduces the heavy work of manual handling, flipping, and placement, saving labor costs.

Machine Video:

Second option:

is when the diameter of the welded steel bar is 3-8mm and the wire feeding method is the steel bar coil.

Line Wire Feeding System:
1. 3-8mm coils are mounted on a dedicated pay-off rack for wire feeding.

2. The electric roller pulls the wires, helping them to unfold smoothly! The straightening system helps keep the wires well separated.

3. After the straight line passes through the straightening system for the first time, it enters the hopper, which is used to store the straight line in advance and reduce the resistance of directly pulling the wire. When the line wire coil is replaced, it will not affect the work of the production line, improving production efficiency.

4. The line wire passes through the straightening system for the second time and enters the welding unit smoothly.

Cross Wire Feeding System:

1. The servo motor sucks a handful of wire at a time, weighing 1T.
2. Panasonic servo motor + planetary reducer controls wire drop.

Welding Unit:

The reinforcing mesh welding machine adopts European pneumatic welding technology – a Japanese 90 times force cylinder. Pneumatic welding technology can provide higher welding speed and shorter cycle time. On the automated production line, continuous welding can be achieved, thereby greatly improving production efficiency. One cylinder controls two welding electrodes. The welding electrodes are copper blocks and can be used on all six sides. The upper and lower electrodes are connected by copper sheets, and the conduction speed is extremely fast. The welding electrode cooling method is water cooling.

Automatic mesh pulling system

1. The automatic mesh pulling system runs to the welding unit when welding the first horizontal wire, and gradually pulls the mesh according to the mesh width and length of the mesh.

2. The automatic mesh pulling system is controlled by a Panasonic servo motor. Synchronous belt drive, fast speed, and low noise.

3. The SMC cylinder controls the metal hook to fix the mesh up and down.

4. Can pull the mesh in a cycle.

Automatic mesh Cutting system

When the mesh reaches the mesh length, the automatic mesh cutting system cuts the mesh accurately.
PLC programming sets the parameters.

Automatic Mesh Dropping System + Transport System
The combination of the automatic mesh dropping system and the transportation system can greatly reduce manual operation and realize the automatic mesh dropping, automatic transportation, and automatic flipping of the steel mesh.
The automatic mesh dropping system makes the mesh neatly arranged and convenient for manual bundling. An automatic packaging system can be added for later use.
The automatic transportation system is driven by a motor and a chain transmission to convey the mesh, which is convenient for manual bundling and transportation.
The combination of the automatic mesh dropping system and the transportation system greatly reduces the heavy work of manual handling, flipping, and placement, saving labor costs.

Machine Video:

4. Characteristics of rebar mesh

The first option:

is when the diameter of the welded steel bar is 5-12mm and the wire feeding method is steel bar.

Reinforcing mesh is a mesh structure made of steel bars welded crosswise. It is widely used in concrete structures such as buildings, bridges, and roads to enhance the tensile strength, bending performance, and seismic performance of concrete. Reinforcing mesh has important application value in the construction industry, and its characteristics make it an ideal reinforcement material.

1. Improve the tensile strength and bending performance of concrete

Enhance the structural strength of concrete: Reinforcing mesh can effectively improve the tensile strength of concrete by welding or weaving steel bars into a mesh structure according to a certain spacing and arrangement. Concrete itself has high compressive strength, but low tensile strength, and reinforcing mesh can make up for this deficiency and improve the tensile capacity of the overall structure.
Improve bending performance: reinforcing mesh can be distributed in different positions in concrete, so that when concrete is subjected to bending, the tensile force of the reinforcing mesh can be effectively dispersed and transmitted, thereby improving the overall bending performance and reducing the occurrence of cracks.

2. Enhance the seismic performance of concrete

Effectively share seismic force: As part of the concrete structure, reinforcing mesh can effectively disperse and transmit the force generated by seismic waves and enhance the seismic resistance of the concrete structure. Under the action of earthquakes or other external forces, the reinforcing mesh can enhance the toughness of the structure, prevent excessive cracks or deformation, and ensure the safety of the building structure.
Improve the integrity of the structure: The steel bars evenly distributed in the reinforcing mesh can maintain the integrity of the structure when the building is shaken, reducing the risk of overall collapse caused by local damage.

3. Improve the crack resistance of concrete

Slow down the expansion of cracks: The reinforcing mesh can effectively control the occurrence and expansion of cracks by forming a uniform distribution network in the concrete. When microcracks appear in the concrete, the reinforcing mesh can prevent the cracks from further expanding by absorbing and dispersing stress.
Enhance the ability to resist thermal cracks: The stress distribution formed by the reinforcing mesh in the concrete can reduce the thermal cracks caused by temperature changes. Especially during the pouring process, the reinforcing mesh can resist the shrinkage and expansion pressure of the concrete caused by temperature changes.

4. Good construction convenience

Simplify the construction process: The production and transportation of the reinforcing mesh are relatively convenient. The reinforcing mesh can be made in the factory in advance and directly laid during the on-site construction, which reduces the workload of steel bar binding and saves a lot of manpower and time.
Reduce manual errors: Compared with traditional manual binding of steel bars, the manufacture and installation of reinforcing mesh are more standardized and consistent, which can reduce structural defects caused by improper manual binding and improve construction quality.

5. Corrosion resistance and long-term stability

Rust protection: The reinforcing mesh is usually treated with anti-corrosion or coating protection, which can effectively resist the corrosion of external environments such as water, acid, alkali, and salt to the steel bars and extend the service life. Especially in special environments such as humidity and the ocean, the corrosion resistance of the reinforcing mesh is particularly outstanding.
Long-term stable performance: Since the steel bars of the reinforcing mesh are arranged evenly, its performance is relatively stable. Even after long-term use, the reinforcement effect and structural strength of the reinforcing mesh will not be greatly attenuated, so it has high long-term stability.

6. Adapt to complex construction environments

Strong flexibility: The reinforcing mesh can be customized according to different construction requirements and is suitable for various engineering projects, such as building foundations, roads and bridges, tunnels, subways, airport runways, and other complex construction environments. It can be flexibly adjusted according to specific force requirements and construction conditions.
Applicable to different types of concrete structures: Whether it is ordinary concrete, prestressed concrete, reinforced concrete, etc., the reinforcing mesh can effectively provide structural reinforcement to ensure the stability and safety of the building structure.

7. Environmental protection

Reduce waste: The production of reinforcing mesh adopts a standardized process, which can effectively control the amount of materials used, reduce material waste in construction, and meet the environmental protection requirements of modern buildings.
Recyclability: Used reinforcing mesh can be recycled and reprocessed, which is in line with the concept of sustainable development.

5. Application of concrete reinforcing mesh

As an efficient reinforcing material, steel mesh is widely used in construction, civil engineering, bridges, roads, and other fields. It can significantly improve the strength, durability, and safety of concrete structures, especially in terms of tensile strength, bending resistance, and crack resistance. The following are the main application areas of steel mesh:

1. Construction projects

Foundation engineering: Steel mesh is widely used in the foundation engineering of buildings, especially in concrete foundations, basements, and foundation-bearing capacity enhancement. It can effectively enhance the crack resistance and tensile strength of concrete and prevent cracks caused by uneven settlement of the foundation or other factors.
Floors and walls: In concrete structures such as floors and walls, steel mesh can enhance the bending, shearing, and tensile resistance of the concrete. The evenly distributed steel bars of the steel mesh effectively enhance the bearing capacity of the concrete and reduce the occurrence of cracks.
Roof reinforcement: Steel mesh plays an important role in roof reinforcement, especially in supporting the roof waterproof layer, insulation layer, etc. When reinforcing the roof, the steel mesh can provide better tensile and compressive effects and improve the stability of the overall building.

2. Road and bridge engineering

Roads and highways: Steel mesh is widely used in concrete pavements of roads and bridges to enhance the crack resistance and impact resistance of concrete. Especially in high traffic pressure or complex environments, steel mesh can effectively extend the service life of roads and bridges and reduce pavement cracking or damage.
Airport runways and parking lots: In high-strength concrete structures such as airport runways and large parking lots, the use of steel mesh can improve the durability of the structure and reduce cracks and wear caused by long-term high-pressure use.

3. Tunnels and Underground Engineering

Tunnel reinforcement: Steel mesh is often used in tunnels, underground pipelines, underground garages, and other projects to enhance the compression and bending resistance of concrete structures. It can effectively improve the stability of the tunnel and prevent the expansion of cracks caused by changes in the ground or external forces.
Underground buildings: In underground buildings such as subways and underground parking lots, steel mesh can provide good reinforcement, and enhance the structure’s earthquake resistance, deformation resistance, and crack resistance, ensuring the stability and safety of the building during long-term use.

4. Water conservancy projects

Dam and canal: Steel mesh is used in water conservancy projects to reinforce concrete structures such as dams, canals, and embankments to prevent structural damage or deformation caused by water erosion. In particular, steel mesh can play a very important role in the anti-seepage and anti-cracking of dams, and enhance the overall strength of the dam body.
Pools and sewage treatment plants: In the concrete structures of pools and sewage treatment plants, steel mesh can effectively improve the corrosion resistance and crack resistance of concrete, and reduce the impact of water flow, chemicals, or other environmental factors on the structure.

5. Agricultural facilities

Greenhouses and agricultural greenhouses: Steel mesh is widely used in agricultural facilities, especially in the construction of greenhouses and agricultural greenhouses. It is not only used to reinforce the building frame but also as a support net to support plant growth in the greenhouse. It has the characteristics of corrosion resistance, aging resistance, and wind pressure resistance.
Farmland reinforcement: Steel mesh can also be used for farmland reinforcement, irrigation pipe support, and prevention of soil erosion.

6. Protective structures

Protective nets and fences: Steel mesh is widely used in the construction of various protective nets and fences, especially in buildings, bridges, railways, airports, military bases and other places. Steel mesh can be used as isolation walls, guardrails, guardrails, etc., to play a role in protection and isolation.
Slope reinforcement: In mountainous areas, roads, railways and other areas, steel mesh is used to reinforce slopes to prevent disasters such as landslides or mudslides. Slopes reinforced with steel mesh can better resist natural disasters and ensure the safety of roads and buildings.

7. Post-disaster reconstruction and reinforcement

Seismic reinforcement: After an earthquake, steel mesh is often used for seismic reinforcement of structures. Buildings reinforced with steel mesh can enhance their seismic resistance, improve the toughness and stability of the overall structure, and reduce damage caused by vibration.
Post-disaster repair: Steel mesh can effectively enhance the stability of damaged structures in post-disaster repair and quickly restore the function and safety of buildings.

8. Residential buildings

Light residential walls: In residential buildings, steel mesh is widely used in masonry reinforcement, wall reinforcement, and other aspects. Steel mesh can enhance the overall strength and crack resistance of the wall, and improve the safety and durability of the residence.
Firewalls and partition walls: Steel mesh plays an important role in the construction of firewalls and partition walls, enhancing the fire resistance and temperature resistance of the wall and improving the bearing capacity of the wall.

How to make reinforcing mesh? I believe that through this article, you have clearly understood the formation and application of reinforcing mesh. JIAKE factory is a professional mesh welding machine manufacturer in China. We can provide mesh welding machines with various wire diameters such as 5-12mm/3-8mm/3-6mm/2-4mm, and professionally provide customers with the best solutions! In addition, the JIAKE factory is also a professional design and licensed steel bar processing equipment manufacturer and has more than 30 years of experience in exporting mesh welding machines. At present, JIAKE mesh welding machines have been exported to more than 150 countries, such as Mexico, Brazil, Canada, Argentina, Colombia, Chile, Peru, Ecuador, Paraguay, Saudi Arabia, Turkey, UAE, Egypt, Russia, India, South Africa, Tanzania, Thailand, Indonesia, Philippines and other countries. JIAKE’s high-quality after-sales service and machine quality have won the trust of customers. If you want to know more about mesh welding machines, please contact us!
Email: info@jiakemeshmachine.com
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