Steel Grating Manufacturer

Introduction to Steel Grating

Steel grating, also known as steel grating plate 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, manhole covers, and tread plates. It is also applied in environmental protection equipment and wastewater treatment. Steel grating is widely used in various fields such as petrochemicals, electricity, water supply, wastewater treatment, ports, construction decoration, shipbuilding, self-propelled parking lots, municipal engineering, and environmental protection engineering, for platforms, walkways, gangways, covers, manhole covers, ladders, and fences.

Steel Grating Plates

Also known as steel grating or grating panel, it is a type of steel product made by crossing flat steel bars at specific intervals with crossbars, then welding them into a grid with square openings. Primarily used for drain covers, steel structure platform panels, and steel ladder tread plates, etc. The crossbars are typically made of twisted square steel.

Manufacturing Process of Steel Grating Plates: Steel grating plates are made by welding load-bearing flat bars and crossbars at specific intervals using a 200-ton hydraulic resistance welding automation system to form the original plate. After cutting, drilling, and edging processes, the final product as per customer requirements is produced. Load-bearing flat bar spacing: The distance between adjacent load-bearing flat bars is commonly 30, 40, 50, and other sizes. Crossbar spacing: The distance between adjacent crossbars is usually 50, 76, 80, 100, and other sizes, which can be produced according to customer specifications and customized in various steel grating plate models based on customer needs.

Product Features of Steel Grating Plates:

High strength, lightweight structure.

2: Excellent corrosion resistance and durability.

3: Attractive appearance, with a glossy surface.

4: Non-sticky, non-accumulating of rain or snow, non-accumulating of water, self-cleaning, easy to maintain.

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

6: Easy to install and disassemble.

Product Application: Widely used in the oil and chemical industry, tobacco industry, power, water supply, wastewater treatment, port terminals, architectural decoration, shipbuilding, self-propelled parking lots, municipal engineering, environmental protection engineering, and other platforms such as walkways, gangways, manholes, covers, ladders, fences, large sports venues, exhibitions, large-scale commercial buildings, stations, ports, airports, and other industrial and civil buildings for ceiling installations.

Hot-Dip Galvanized Steel Grating

The product is a finished item, meticulously crafted from load flat steel and crossbars, arranged in a certain spacing, and welded into a base plate on a high-pressure resistance welding machine. It undergoes deep processing including cutting, notching, punching, and edging to meet the customer's specifications.

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

1. Hot-Dip Galvanized Grating, categorized by manufacturing process into Press-Welded Hot-Dip Galvanized Grating and Press-Locked Hot-Dip Galvanized Grating

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

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

Labeling Method:

(1) Hot-Dipped Galvanized Grating Slats Spacing: Series 1: 30mm; Series 2: 40mm; Series 3: 60mm.

(2) Hot-dip 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 Q23 steel or stainless steel, available in flat, 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 Cross Bars: Made of round steel, twisted square steel, square steel, or hexagonal steel with material grade Q23 or 304 stainless steel. Twisted square steel is produced by drawing through square dies from round wire and twisting, with common sizes including 5*5, 6*6, 8*8mm, etc.

Features: High strength, lightweight structure: The sturdy grid pressure welding structure ensures high load-bearing capacity, lightweight, and easy for hoisting; aesthetically pleasing, durable and long-lasting.

Hot-Dip Galvanized Steel Grating Applications: Widely used in platforms, walkways, gangways, manhole covers, ladder covers, fences, guardrails, etc., in fields such as petrochemicals, power plants, waterworks, sewage treatment plants, municipal engineering, and environmental protection engineering.

Hot-Dip Galvanized Steel Grating

(Hot-dip galvanized steel grating) is a widely used product in steel grating applications, known for its versatility. After welding and hot-dip galvanizing, it boasts an attractive appearance and excellent corrosion and rust prevention, extending its service life, making it highly favored by customers.

Hot-dip galvanized steel grating features include: high strength, light structure; its sturdy grid welding structure offers high load-bearing capacity, lightweight, and easy handling for hoisting; attractive appearance, durable use.

Corrosion Resistance: A stable protective film forms on the zinc layer 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, grates, ladders, fences, guardrails, and other structures in the fields of petrochemicals, power plants, waterworks, sewage treatment plants, municipal engineering, and environmental protection projects.

Heavy-duty steel grating

1. Heavy-duty steel grating introduction:

Heavy-duty steel grating refers to grating with a bearing flat steel width of over 65mm and a thickness of over 6mm, with cross bars typically made of flat steel or steel bars 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, harbor wharfs, and other special requirement sites.

3. Heavy-duty steel grating classification:

4. Heavy-duty steel grating can be categorized into two types based on the production process: heavy-duty pressure-welded steel grating and heavy-duty pressure-locked steel grating.

A. Heavy-duty welded steel grating refers to grating with steel bars as crossbars, suitable for single-direction loading applications.

B. Heavy-duty press-locked steel grating refers to grating with flat steel crossbars, suitable for bidirectional loading applications. However, it is significantly more expensive than welded steel grating, and is generally not recommended for use.

C. Surface shape categories include 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 cross-bearing capacity and patterned plates with a sealed surface. After hot-dip galvanizing, composite steel grating may experience warping and deformation due to heat, especially for larger sizes, which can be difficult to flatten. Please note the selection of sizes. The composite steel grating commonly uses Series 3 steel grating as the base, 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 also be employed. By welding steel mesh to the front or back of the composite steel grating, a double mesh board is formed, which can prevent small items from falling out. The use of double mesh boards in grain silos, dining rooms, 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 to the welding joints. Use steel grating installation clamps to install without damaging the galvanized layer, and for easy assembly and disassembly. 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 typical installation gap for steel gratings is 100mm. Ensure the installation is secure and reliable during assembly, and regularly inspect to prevent the clamps from loosening or falling off. It is recommended to weld or add rubber pads to the steel gratings near vibration.

Platform steel grating

Platform steel grating is a widely applicable steel grating panel product, primarily used for various platforms in factories, workshops, mines, and ports. It offers aesthetic appeal, ease of installation, and is a new generation building product for replacement.

Platform specialty products include: steel grating plates.

1. Kick plates (edge guards) and patterned steel plate guards can be additionally welded around the steel grating, along with the installation of connecting accessories.

2. Utilize flat steel strips with different specifications than those used for the steel grating edges, or use angle iron, channel steel, square tubes, etc., for edging.

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 one out of every five panels; Series 2 - weld one out of every four panels; Series 3 - weld one out of every three panels. The weld is a single-sided angle weld of not less than 3mm, with a weld length of 20mm.

Stainless Steel Grating

Also known as stainless steel grating panels. There are usually two methods of production: one involves welding together stainless steel flat bars and round bars; the other involves interlocking stainless steel flat bars. They offer excellent corrosion resistance, a clean appearance, and a highly desirable 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 treated with different protective coatings based on the usage environment).

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

Manufacturing Process:

There are two types: machine press welding and handcrafted. Machine press welding uses a high-voltage resistance welding machine, where a robotic arm automatically places the crossbar horizontally on evenly arranged flat steel bars, and then welds it into the flat steel using strong electric welding power and hydraulic pressure, resulting in a high-quality steel grating with strong weld points, high stability, and strength. Handcrafted steel gratings are first punched with holes on the flat steel, then the crossbars are inserted into the holes and spot-welded. There will be gaps between the crossbars 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 appears as a matte grayish white.

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

c. The finished product is heat and polished, followed by electrochemical polishing, and finally 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.

Usage:

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

Stainless Steel Grating Covers

Stainless steel grating covers, also known as stair tread plates, steel stair tread plates, or tread plates, are a type of stairboard used on platforms. They can be installed via welding or bolt connections. Welded tread plates can be directly welded to the stair beams.

Overview

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

Features & Applications

(1) The installation of the step board is extremely simple and does not require complex assembly.

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

(3) High strength, lightweight, and durable treads.

(4) Extremely easy to maintain and prevent dirt accumulation.

Tread plates find extensive use in platforms and walkways of factories such as power plants and water treatment facilities, as well as in municipal and environmental protection projects. They are also widely applied in large-scale venues like 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形式，mainly used for drain covers, steel structure platform panels, and steps for steel ladders. The crossbars are typically made of twisted square steel.

Grate panels are typically made from low-carbon Q235 steel, with a hot-dipped galvanized finish for rust prevention. They can also be made from stainless steel. Steel grates offer ventilation, lighting, heat dissipation, anti-slip, and explosion-proof properties.

Manufacturing Methods of Grating Plates: There are two methods, machine press welding and handcrafted. Machine press welding uses a high-pressure resistance welding machine, where a robotic arm automatically places the crossbars across evenly spaced flat steel bars, then welds them securely into the flat steel using strong electric welding power and hydraulic pressure, resulting in high-quality grating plates with strong weld points, excellent stability, and high strength. Handcrafted grating plates are first punched with holes in the flat steel, then the crossbars are inserted into the holes and spot-welded. There will be gaps between the crossbars and the flat steel, and it's impossible to weld every contact point, so the welding is not as solid, and the strength is reduced.

Grating plate features:

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

2. Easy for hoisting and other features;

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

4. Surface luster is aesthetically pleasing.

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

Grating panels are widely used in various industries such as petrochemicals, municipal engineering, port engineering, machinery industry, power and water plants, iron and steel industry, manufacturing, and food processing.

Interlocking steel grating

Interlocking Steel Grating: Also known as insert-type steel grating, it is manufactured through processes such as slotting (punching), insertion, welding, and finishing, using flat steel, stainless steel, brass, and aluminum plates of specific dimensions. The interlocking 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, it includes pressed steel grating, heavy-duty steel grating, solid steel grating, and sunshade curtain steel grating, etc.

1. Pressed Steel Grating: After cutting grooves in the carrying 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 product featuring high-strength flat steel and cross-bar flat steel interlocked and tightly formed under 1200 tons of pressure. It is suitable for high-span and heavy-load applications.

3. Integrated Steel Grating Panels - The load-bearing flat steel and cross-bar flat steel of the integrated 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 should not exceed 100mm. The length of the steel grating is typically less than 2000mm.

4. Sunshade Grating: The sunshade grating features load-bearing flat steel with 30° or 45° slits, and the slot rods are locked into place by pressing the slots. We can deliver gratings with various spacings and specifications to meet different requirements, and they can be made from materials such as carbon steel, stainless steel, and aluminum. The height of the grating is less than 100mm.

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

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