Hot-Dip Galvanized Steel Grating Manufacturer

Introduction to Steel Grating

Steel grating, also known as steel grate or grating panel, is made by welding 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 tread plates. It is also used in environmental protection equipment and wastewater treatment. Steel grating is widely applied in various fields such as petrochemical, electricity, water supply, wastewater treatment, port terminals, architectural decoration, shipbuilding, self-propelled parking lots, municipal engineering, and environmental protection engineering, 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 certain intervals with crossbars,焊接成具有方形格子的结构。Primarily used for drain covers, steel structure platform panels, and step plates for steel ladders. The crossbars are typically made of twisted square steel.

Manufacturing Process of Steel Grating Panels: Steel grating panels are manufactured by arranging load-bearing flat bars and crossbars at specific intervals, then焊接 using a 200-ton hydraulic resistance welding automation system 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, and 50, among others. Spacing of Crossbars: The distance between adjacent crossbars is typically 50, 76, 80, 100, and more, which can be produced according to customer specifications and customized to various steel grating panel models based on customer needs.

Product Features of Steel Grating Plates:

1: High strength, light structure.

2: Strong corrosion resistance, durable in use.

3: Attractive appearance, 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, power, water supply, wastewater treatment, port and dock, construction decoration, shipbuilding, self-propelled parking lots, municipal engineering, environmental protection engineering, and other platforms in various fields, such as walkways, gangways, manholes, covers, ladders, fences, and ceilings for industrial and civil buildings like large sports venues, exhibitions, large-scale commercial spaces, stations, docks, and airports.

Hot-Dip Galvanized Steel Grating

The original plate is manufactured by welding load flat steel and crossbars at a certain spacing, then it is deeply processed into the finished product as required by the customer through cutting, notching, punching, and edge wrapping, etc., on a high-pressure resistance welding machine.

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

1. Hot-dip galvanized steel grating, categorized by manufacturing process, includes pressed-welded hot-dip galvanized steel grating and pressed-locked hot-dip galvanized steel grating.

2. Divided into toothed hot-dip galvanized steel grating and flat hot-dip galvanized steel grating according to the surface shape of the hot-dip galvanized steel grating.

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

Marking 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-dip galvanized steel grating cross-bar spacing: Series 1 is 100mm, Series 2 is 50mm. Other specifications available upon request.

(3) Hot-Dip Galvanized Steel Grating Slats: Made of Q23 steel or stainless steel, available in flat, anti-slip toothed, and I-section designs. Common 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 Cross Bars: 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 a square die from round steel and then twisting it. Common sizes include 5*5, 6*6, 8*8mm, etc.

Features include: high strength, lightweight structure: The sturdy grid pressure-welded structure provides high load-bearing capacity, light structure, and easy hoisting; aesthetically pleasing, durable.

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

Hot-Dip Galvanized Steel Grating

Hot-dip galvanized steel grating is a widely used product among steel grating applications, known for its aesthetic appeal and excellent corrosion and rust prevention, which extends its service life. It is highly favored by numerous customers.

Hot-dip galvanized steel grating plates feature high strength and lightweight structure; their robust 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 good corrosion resistance.

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

Heavy-duty steel grating

1. Introduction to Heavy Duty Steel Grating

Heavy-duty steel grating refers to steel grating with a bearing width of over 65mm and a bearing thickness of over 6mm. Its transverse bars are typically made of flat steel or reinforced steel bars with diameters 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, wharfs, and other special requirements.

3. Heavy-duty steel grating classification:

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 welded steel grating refers to a type of grating where the crossbars are made of reinforced steel, suitable for single-direction loading applications.

B. Heavy-duty press-locked steel grating refers to grating with flat steel bars. It is suitable for applications requiring bidirectional loading, 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 general situations, and heavy-duty toothed steel grating for anti-slip applications such as offshore drilling platforms.

Composite steel grating

This product is composed of steel grating with certain cross-bearing capacity and embossed panels with a sealed surface. After hot-dip galvanizing treatment, composite steel grating may undergo warping and deformation due to heat, especially for larger sizes, which can be challenging to flatten. Please pay attention to the selection of size. The composite steel grating commonly uses Series 3 grating as the base, but Series 1 or Series 2 grating can also be used. Embossed steel grating usually employs 3mm thick plates, but 4mm, 5mm, or 6mm plates can also be used. The composite steel grating can be joined with steel mesh on the front or back side to form a double mesh board, which can prevent small items from falling out. Using double mesh boards in granaries, restaurants, and 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 top clamp, one bottom clamp, one M8 round head bolt, and one nut. Stainless steel installation clamps or bolt connection methods can be provided upon request. The installation gap for steel grating is generally 100mm. Ensure the installation is secure and reliable during assembly, and check regularly to prevent the clamps from loosening or falling off. It is recommended to weld or add rubber pads to steel grating near vibration sources.

Platform steel grating

Platform steel grating is a versatile product in the wide range of steel grating panels, mainly used for platforms in factories, workshops, mines, and ports. It offers aesthetic appeal, ease of installation, and is a new type of building product that replaces the old ones.

Platform specialty: Steel Grating Sheets

1. Kick plates (end caps), patterned board guards, and installation accessories such as fasteners can be additional welded around the steel grating.

2. Utilize flat steel strips with different specifications for the perimeter of the steel grating, or use angle steel, channel steel, square tubes, etc., for the perimeter.

3. Handles and hinges can be installed on the platform steel grating panels for frequent movement or opening.

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

Stainless Steel Grating

Also known as stainless steel grating panels. There are typically two production methods: one involves combining and welding stainless steel flat bars and round bars; the other involves interlocking stainless steel flat bars. They offer excellent corrosion resistance, a neat appearance, and a very ideal decorative effect, although they are generally more expensive.

Stainless steel grating categories:

It can be categorized into flat, toothed, and I-type shapes, with over 200 specifications and varieties (the surface can be treated with different protective coatings depending on the application environment).

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

Manufacturing Process:

There are two types: machine welding and handcrafted. Machine welding utilizes a high-voltage resistance welding machine, with a robotic arm automatically placing the crossbars across evenly spaced flat steel bars, welding them in place with strong electrical welding power and hydraulic pressure, resulting in high-quality steel grating with strong weld points, excellent stability, and high strength. Handcrafted steel gratings are first punched on the flat steel, then the crossbars are inserted into the holes and spot-welded. There will be gaps between the crossbars and flat steel, but each contact point is焊接, achieving a melting connection equivalent to that of flat and twisted steel, making the welds more solid and slightly enhancing strength. However, the appearance is not as aesthetically pleasing as that of the machine-welded version!

Surface Treatment:

After pickling and passivation, the surface appears as a matte gray-white.

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

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

Advantages:

Lightweight, high strength, high load-bearing capacity, material-saving and economic, good ventilation and lighting, modern style, aesthetically pleasing, anti-slip, easy to clean, and easy to install.

Usage:

Stainless steel grating is widely 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 is similar to that of carbon steel grating. Due to its special properties, stainless steel grating is extensively applied in various factories both domestically and internationally.

Stainless Steel Grating Cover

Stainless steel channel 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 types: welded connections and bolted connections. Tread plates that are welded in place can be directly welded onto the stair beam.

Overview

Welded fixed tread plates, directly welded to the ladder beam, without the need for side plates for the tread plates, offering a more economical option. However, they are not easily removable. Tread plates with bolt fixation require reinforced side plates, with holes pre-drilled on the sides for direct bolt installation, allowing for recyclability and reuse. Customers can customize according to their specific needs, using suitable steel grating materials to fabricate various sizes to match the corresponding staircase.

Features & Applications

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

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

(3) High-strength, lightweight construction, and durable stepping board.

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

Tread plates have a wide range of applications, including platforms and walkways in power plants, waterworks, and other industrial facilities, as well as in municipal engineering and environmental protection projects. They are extensively used on ground platforms in large venues such as cinemas, visitor platforms, and parking lots.

Grating panels

The grating is a type of steel product made by crossing flat steel bars at certain intervals 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 step plates for steel ladders. The crossbars are typically made of twisted square steel.

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

Manufacturing methods of grating panels: There are two types - machine pressed welding and handcrafted. Machine pressed welding uses a high-voltage resistance welding machine, where a robotic arm automatically places the crossbars across evenly spaced flat steel bars, then welds them securely into place using intense welding power and hydraulic pressure, resulting in high-quality grating panels with strong weld points, excellent stability, and high strength. Handcrafted grating panels are initially punched with holes in the flat steel, and then the crossbars are inserted into the holes and spot-welded. There will be gaps between the crossbars and flat steel, and it is impossible to weld every contact point, leading to unreliable welding and reduced strength.

Grille plate features:

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

2. Easy for hoisting and other features;

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

4. Surface is glossy and aesthetically pleasing.

5. Excellent ventilation, lighting, heat dissipation, explosion-proof, and anti-slip properties; prevents accumulation of dirt.

Grating plate applications: Widely used in various industries such as petrochemicals, municipal engineering, port engineering, machinery industry, power plants and waterworks, iron and steel industry, manufacturing, food processing, etc.

Studded steel grating

Slotted Steel Grating: Also known as interlocking steel grating, it is manufactured through processes such as slotting (punching), interlocking, welding, and finishing, using carbon flat steel, stainless steel, brass, and aluminum plates of specific dimensions. The slotted steel grating 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. This product 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: Differentiated by insertion method and angle, including pressed steel grating, heavy-duty steel grating, solid steel grating, and sunshade curtain steel grating, etc.

1. Pressed steel grating: After the flat steel carrying load is notched, 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 steel grating is usually less than 2000mm.

2. Heavy-duty grating panels are a type of steel grating product formed by interlocking high flat steel and crossbar flat steel, which is tightly pressed into shape under 1200 tons of pressure. They are suitable for high-load-bearing applications with large spans.

3. Integral Grating Panels - The load-bearing flats and crossbars of the integral grating panels have the same height and slot depth, which is half the depth of the load-bearing flats. The height of the steel grating does not exceed 100mm. The length of the steel grating is typically 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, with the slot bars formed by pressing and locking. We can deliver grating panels with different spacings and specifications as per your requirements, using materials such as ordinary carbon steel, stainless steel, aluminum, etc. The height of the grating panels is less than 100mm.

Features: The interlocking steel grating features robust weld points, uniform hole spacing, flat surface, aesthetically pleasing design, practical 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 grill panels feature firm welding points, uniform hole spacing, and a flat surface, with an aesthetically pleasing and practical design. They are both functional products 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.