Hot-Dipped Galvanized Steel Grating Manufacturer

Introduction to Steel Grating

Steel grating, also known as steel grid or grid plate, is焊接 from flat steel and twisted steel. Durable and cost-effective compared to other products, it is primarily used in power plant platforms, parking lot platforms, maintenance platforms, drain covers, and step plates. It is also used in environmental protection equipment and wastewater treatment. Steel grating is widely applied in various fields such as petrochemicals, electricity, water supply, wastewater treatment, port terminals, architectural decoration, shipbuilding, self-propelled parking lots, municipal engineering, and environmental sanitation projects, for platforms, walkways, gangways, drain covers, manholes, ladders, fences, and more.

Steel Grating Plates

Also known as steel grating or grate, it is a type of steel product made by crossing flat steel bars at a certain spacing with transverse bars, then welded into a square-grid pattern. It is primarily used for drain covers, steel structure platform panels, and stair treads. The transverse bars are typically made of twisted square steel.

Manufacturing Method of Steel Grating Panels: Steel grating panels are made by welding load-bearing flat bars and cross bars at a certain spacing using a 200-ton hydraulic resistance welding automation machine to form the original plate. The panels are then processed through cutting, punching, and edging, etc., to meet the customer's requirements. Spacing of Load-bearing Flat Bars: The spacing between adjacent load-bearing flat bars is commonly 30, 40, 50, and other sizes. Spacing of Cross Bars: The distance between adjacent cross bars is typically 50, 76, 80, 100, and other sizes, which can be produced according to customer specifications and customized in various steel grating panel models to meet customer needs.

Product Features of Steel Grating Plates:

1: High strength, lightweight structure.

2: Excellent corrosion resistance, durable for long-term use.

3: Attractive appearance with a glossy surface.

4: No dirt accumulation, no snow or rain buildup, no water pooling, self-cleaning, easy to maintain.

5: Good ventilation, lighting, heat dissipation, anti-slip, and explosion-proof properties.

6: Easy to install and dismantle.

Product Applications: Widely used in the petrochemical, tobacco, electricity, water supply, wastewater treatment, port, wharf, architectural decoration, shipbuilding, self-propelled parking lots, municipal engineering, environmental protection engineering, and other platforms, as well as walkways, gangways, manholes, covers, ladders, fences, and ceilings for industrial and civil buildings such as large sports venues, exhibitions, large-scale commercial buildings, stations, docks, and airports.

Galvanized Steel Grating

The product is a finished item, meticulously processed from a base plate that consists of load-bearing flat steel and crossbars arranged at specific intervals. It is焊接(welded) on a high-voltage resistance welding machine, followed by deep processing steps such as cutting, notching, punching holes, and edging to meet the customer's specifications.

Hot-dip galvanized steel grating is available in the following types:

1. Hot-Dipped Galvanized Grating, categorized by manufacturing process into Press Welded Hot-Dipped Galvanized Grating and Press Lock Hot-Dipped Galvanized Grating

2. Hot-dip galvanized steel grating panels are categorized by surface shape into toothed hot-dip galvanized steel grating panels and flat hot-dip galvanized steel grating panels.

3. Type I hot-dip galvanized steel grating and composite hot-dip galvanized steel grating.

Labeling Method:

(1) Hot-dip galvanized steel grating flat steel spacing: Differentiated by series: Series 1 is 30mm; Series 2 is 40mm; Series 3 is 60mm.

(2) Hot-Dipped Galvanized Steel Grating Crossbar Spacing: Series 1 is 100mm, Series 2 is 50mm. Other specifications are available for customization.

(3) Hot-Dip Galvanized Steel Grating: Made of Q235 or stainless steel, available in plain, anti-slip toothed, and I-section designs. Standard sizes include 20*5, 25*5, 25*3, 32*5, 32*5, 40*5, 40*3, 50*5, 65*5, 75*6, 100*8, and 100*10.

(4) Hot-Dip Galvanized Steel Grating Crossbars: Round steel, twisted square steel, square steel, or hexagonal steel made of Q23 or 304 stainless steel. Twisted square steel is produced by drawing through square dies from round wire and twisting it, with common sizes including 5*5, 6*6, 8*8mm, etc.

Characterized by: High strength, lightweight construction: The robust grid pressure welding structure offers high load-bearing capacity, light structure, and ease of hoisting; aesthetically pleasing and durable.

Hot-Dip Galvanized Steel Grating Applications: Widely used in platforms, walkways, bridges, manholes, covers, ladders, fences, guardrails, etc., for fields such as petrochemical, power plants, waterworks, sewage treatment plants, municipal engineering, and environmental protection projects.

Hot-Dip Galvanized Steel Grating

Hot-dip galvanized steel grating panels are one of the most commonly used products in steel grating applications, widely utilized. After welding and forming, these panels undergo hot-dip galvanizing, offering not only an aesthetically pleasing appearance but also excellent corrosion and rust prevention, extending their service life. They are highly favored by a wide range of customers.

Hot-dip galvanized steel grating panels feature high strength and lightweight structure; their sturdy grid weld structure offers high load-bearing capacity, light structure, and ease of hoisting; they are also aesthetically pleasing and durable.

Corrosion Resistance: A stable protective film forms on the zinc layer surface within the pH range of 6 to 12.5, offering excellent corrosion resistance.

Hot-dip galvanized steel grating applications: Widely used in platforms, walkways, gangways, manhole covers, ladder covers, fences, guardrails, etc., for fields such as petrochemicals, power plants, waterworks, sewage treatment plants, municipal engineering, and environmental protection engineering.

Heavy-duty steel grating

1. Heavy-duty steel grating introduction:

Heavy-duty steel grating refers to steel grating with a bearing flat steel width of over 65mm and a thickness of over 6mm. Its transverse bars are typically made of flat steel or steel rebars with a diameter of 10mm or 12mm.

2. Heavy-duty steel grating applications:

Heavy-duty steel grating is designed and manufactured for applications requiring heavy loads, suitable for airports, highways, industrial platforms, ports and harbors, as well as other special demand situations.

3. Heavy-duty steel grating categories:

4. Heavy-duty steel grating can be divided into two types according to the production process: heavy-duty welded steel grating and heavy-duty riveted steel grating.

A. Heavy-duty weld mesh plate refers to a type of steel grating where the crossbars are made of rebar, suitable for one-way loading applications.

B. Heavy-duty press-locked steel grating refers to grating with flat steel bars. It is suitable for bidirectional loading applications, but it is significantly more expensive than welded steel grating. Generally, it is not recommended for use.

C. Surface shapes can be divided into flat heavy-duty steel grating and toothed heavy-duty steel grating.

Due to cost considerations, we recommend using flat steel grating in most cases, and toothed heavy-duty steel grating for anti-slip applications such as offshore drilling platforms.

Composite steel grating

This product is composed of steel grating with certain transverse load-bearing capacity and patterned plate with a sealed surface. After hot-dip galvanizing, composite steel grating may undergo warping and deformation due to heat, especially with larger sizes, making leveling difficult. Please note the selection. The common series for the base plate of composite steel grating is Series 3, but Series 1 or Series 2 can also be used; patterned steel grating typically uses 3mm thick plates, but 4mm, 5mm, or 6mm plates can be used as well. A reinforced mesh can be bonded to the front or back of the composite steel grating to form a reinforced mesh panel, preventing small items from falling out. Using such a panel in grain silos, restaurants, or warehouses can prevent rodents and other small animals from entering.

Composite Steel Grating Installation Method: Directly weld the steel grating or tread plate to the supporting steel structure, and apply two coats of zinc-rich paint at the welding joints. Use steel grating installation clamps for assembly, which do not damage the galvanized layer, and are easy to disassemble. Each set of installation clamps includes one upper clamp, one lower clamp, one M8 round head bolt, and one nut. Stainless steel installation clamps or bolt connections can be provided upon request. The typical installation gap for steel grating is usually 100mm. Ensure the installation is secure and reliable during assembly, and regularly check to prevent the clamps from loosening or falling off. It is recommended to weld or add rubber pads to the steel grating near vibration areas.

Platform steel grating

Platform steel grating is a widely applicable product among various steel grating panels, primarily used in factories, workshops, mining, and ports for various platforms. It boasts an elegant appearance, easy installation, and represents a new generation of building materials, perfect for upgrading.

Platform specialty steel grating products include:

1. Kick plates (edge guards), patterned steel plate guards, and mounting accessories can be added around the steel grating.

2. Utilize flanges of different specifications than the steel grating's carrying flat steel, or use angle iron, channel steel, square tubes, etc., for edging.

3. Handles and hinges can be installed on platform steel grating panels that need to be frequently moved or opened.

4. Generally speaking: The welding standard for the edge of the platform steel grating is as follows: Series 1 - weld every five pieces; Series 2 - weld every four pieces; Series 3 - weld every three pieces. The weld is a single-sided angle weld not less than 3mm, with a length of 20mm.

Stainless Steel Grating

Also known as stainless steel grating panels. There are typically two methods of production: a combination of stainless steel flat bars and round bars welded together; and interlocking stainless steel flat bars. They possess excellent corrosion resistance, a clean appearance, and a highly decorative effect, though they are generally more expensive.

Stainless Steel Grating Categories:

It can be categorized into flat, toothed, and I-shaped types, with over 200 specifications and varieties (the surface can be protected differently depending on the usage environment).

Material: Generally, stainless steel grades 304, 316, 316L, etc., are selected.

Manufacturing Method:

There are two types: machine press welding and handcrafted. Machine press welding uses a high-pressure resistance welding machine, where a robotic arm automatically places the crossbar horizontally on evenly arranged flat steel bars. It then welds the crossbar into the flat steel using strong welding power and hydraulic pressure, resulting in a high-quality steel grating with strong weld points, high stability, and strength. Handcrafted steel gratings first punch holes in the flat steel, then insert the crossbar into the holes and spot weld it. There will be gaps between the crossbar and the flat steel, but each contact point is焊接, achieving an equivalent melting connection between the flat steel and the twisted steel, making the welding more solid and the strength slightly improved, although the appearance is not as aesthetically pleasing as press welding.

Surface Treatment:

After pickling and passivation, the surface is a matte grayish white.

b. Electrochemical polishing results in a brighter surface with higher luster.

c. The finished products are heat-treated and polished, followed by electrochemical polishing, and then chrome-plated to achieve a mirror-like finish.

Advantages:

Lightweight, high strength, large load-bearing capacity, cost-effective, ventilated and light-transmitting, modern style, aesthetically pleasing, anti-slip, easy to clean, and simple to install.

Application:

Stainless steel grating panels are extensively used in power plants, chemical factories, oil refineries, steel mills, machinery manufacturing plants, shipyards, paper mills, cement factories, food processing plants, and bridge engineering, municipal engineering projects, and wastewater treatment facilities where corrosion resistance is critical. The selection of stainless steel grating panels is similar to that of carbon steel grating panels. Due to their unique properties, stainless steel grating panels are widely applied in various factories both domestically and internationally.

Stainless Steel Grating Cover

Stainless steel grating covers, also known as stair tread plates, steel stair tread plates, or tread plates, are a type of stairboard used for platforms. They come in two installation methods: welded connections and bolted connections. Welded tread plates can be directly welded onto the stair beam.

Overview

Welded fixed tread plates, directly welded to the ladder beam, without the need for additional side panels for the tread plates; more economical in cost but not easily removable. Tread plates secured with bolts require thicker side panels, with holes pre-drilled for direct bolt attachment, allowing for reuse and recycling. Customers can customize according to their specific needs, with suitable steel grating panels available in various sizes to match the corresponding staircase.

Features & Applications

(1) The installation of the step board is very simple, no complex installation required.

(2) Excellent ventilation, lighting, heat dissipation, explosion-proof, and anti-slip properties.

(3) High strength, lightweight construction, and durability of the step board

(4) Extremely easy to maintain and prevents buildup of dirt.

Tread plates are widely used in platforms and walkways of power plants, waterworks, and other factories, as well as in municipal engineering and environmental protection projects. They are also commonly found on large ground platforms in theaters, visitor platforms, and parking lots.

Grating panel

The grating is a type of steel product formed by crossing flat steel bars at a certain spacing with crossbars,焊接成带有方形格子的中间部分. It is primarily used for drain covers, steel structure platform panels, and stair tread panels. The crossbars are usually made of twisted square steel.

Grating panels are typically made of low-carbon steel Q235, with a hot-dipped galvanized finish to prevent oxidation. Stainless steel can also be used. Steel grating panels offer ventilation, lighting, heat dissipation, anti-slip, and explosion-proof properties.

Manufacturing Methods of Grating Plates: There are two types, machine press welding and handcrafted. Machine press welding utilizes a high-pressure resistance welding machine, where a robotic arm automatically places the crossbars across evenly arranged flat steel bars. The crossbars are then pressed into the flat steel using strong welding power and hydraulic pressure, resulting in high-quality grating plates with strong weld points, excellent stability, and enhanced strength. Handcrafted grating plates are first punched with holes in the flat steel, followed by inserting the crossbars and spot welding them into place. There will be gaps between the crossbars and the flat steel, and it's impossible to weld every contact point, leading to less secure welding and reduced strength.

Grille panel features:

1. High strength, lightweight structure: The sturdy grid pressure-welded structure offers high load-bearing capacity and a lightweight design.

2. Features such as easy hoisting;

3. Aesthetically pleasing and durable: Hot-dip galvanized surface treatment provides excellent corrosion resistance.

4. Surface luster is aesthetically pleasing.

5. Good ventilation, lighting, heat dissipation, explosion-proof, and anti-slip properties; resistant to accumulation of dirt.

Grating Panels Applications: Widely used in various industries including petrochemicals, municipal engineering, port engineering, machinery industry, power and water plants, iron and steel industry, manufacturing, food processing, and more.

Insertion Steel Grating

Interlocking Steel Grating: Also known as double-interlocking steel grating, it is manufactured through processes such as slotting (punching), interlocking, welding, and finishing, using plain carbon flat steel, stainless steel, brass plate, and aluminum plate of certain sizes. This product combines the high strength, corrosion resistance, and maintenance-free features of ordinary steel grating, with a uniform structure that is lightweight, exquisite, natural, harmonious, and elegant. It is widely used for drain covers, stair treads, and pond covers.

Category:

Four types of interlocking steel grating can be distinguished: Classification of interlocking steel grating: They can be divided into pressed steel grating, heavy-duty steel grating, solid steel grating, and sunshade curtain steel grating, etc., based on different insertion methods and angles.

1. Pressed Steel Grating: After cutting grooves in the bearing flat steel, the crossbar flat steel is pressed and locked into shape. Generally, the large processing height for producing standard steel grating is 100mm. The length of the steel grating is usually less than 2000mm.

2. Heavy-duty steel grating is a steel grating product that features high-strength flat steel and cross-bar flat steel interlocking and tightly molded under 1200 tons of pressure. It is suitable for high-span load-bearing applications.

3. Integral Steel Grating Panels - The load-bearing flat steel and cross-bar flat steel of the integral steel grating panels have the same height and slot depth, which is half that of the load-bearing flat steel. The height of the steel grating is not more than 100mm. The length of the steel grating is usually less than 2000mm.

4. Sunshade Type Interlocking Steel Grating: The load-bearing flat steel of the sunshade type interlocking steel grating features 30° or 45° slits, and the slotted flat steel is locked into place through slotting. We can deliver grating panels with different spacing and specifications as per your needs, available in materials such as carbon steel, stainless steel, aluminum, etc. The height of the grating panels is less than 100mm.

Features: The interlocking steel grating features solid weld points, uniform hole spacing, flat surface, aesthetically pleasing design, practical and lightweight, high strength corrosion resistance, and maintenance-free.

Application: Widely used in civil and commercial buildings, theaters, subways, urban rail projects, and other municipal engineering fields. Suitable for ceiling, indoor and outdoor decoration, platforms, ventilation windows (wells), billboards, various covers, etc. The interlocking grating panels feature firm welding points, uniform hole spacing, and a flat surface, with an aesthetically pleasing and practical design. They are both utility items and works of art. Over the years, more than a hundred varieties have been developed, and sixteen exported products have been highly favored by customers.