Steel Grating Manufacturer

Introduction to Steel Grating

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

Steel Grating Plates

Also known as steel grating or grid plate, it is a type of steel product made by crossing flat steel bars at certain intervals with transverse bars, and welding them into a square-grid pattern in the middle. Primarily used for drain covers, steel structural platform panels, and steel ladder tread plates, etc. The transverse bars are typically made of twisted square steel.

Manufacturing Method of Steel Grating Plates: Steel grating plates are made by welding load-bearing flat steel and crossbars at certain intervals using a 200-ton hydraulic resistance welding automation system to form the original plate. The plate is then processed through cutting, drilling holes, and edging to meet the customer's requirements. Spacing of Load-bearing Flat Steel: The spacing between adjacent load-bearing flat steels 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 in various steel grating plate models to suit customer needs.

Product Features of Steel Grating Plates:

High strength, lightweight structure.

2: Strong corrosion resistance, durable in use.

3: Aesthetically pleasing with a glossy surface.

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

Ventilation, lighting, heat dissipation, anti-slip, and explosion-proof performance are excellent.

6: Easy to install and dismantle.

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 platform fields such as walkways, gangways, manholes, covers, ladders, fences, large sports venues, exhibitions, large-scale commercial spaces, stations, harbors, airports, and other industrial and civil buildings for ceiling installations.

Hot-Dip Galvanized Steel Grating

The product is a finished item, meticulously processed from a base plate made by welding load flat steel and crossbars at specific intervals, followed by deep processing steps such as cutting, notching, punching, and edging to meet customer specifications.

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

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

Marking Method:

(1) Hot-Dipped Galvanized Steel Grating扁钢spacing: differentiated by series: Series 1 is 30mm; Series 2 is 40mm; Series 3 is 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. 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 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 a square die from round steel wire and then twisting it, with common sizes including 5*5, 6*6, 8*8mm, etc.

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

Hot-dip galvanized steel grating applications: Widely used in platforms, walkways, bridges, manhole covers, well covers, ladders, fences, railings, etc., for fields such as petrochemical, power plants, water plants, wastewater treatment plants, municipal engineering, and environmental protection engineering.

Hot-Dip Galvanized Steel Grating

Hot-dip galvanized steel grating panels are a highly popular product with a wide range of applications in steel grating. After welding and forming, these panels undergo hot-dip galvanizing, offering not only an aesthetically pleasing appearance but also excellent corrosion and rust prevention, thereby extending their service life. They are greatly favored by our customers.

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

Corrosion Resistance: Forms a stable protective film 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, bridges, manholes, covers, 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. Heavy-duty steel grating introduction:

Heavy-duty steel grating refers to grating with a bearing width of over 65mm and a bearing thickness of over 6mm, with crossbars typically made of flat steel or steel rebar 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, harbor docks, and other special requirement scenarios.

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 pressure-welded steel grating refers to grating with steel bars as crossbars, suitable for one-way loading applications.

B. Heavy-duty pressed steel grating refers to grating with flat steel bars. It is suitable for bidirectional loading but 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 oil drilling platforms.

Composite steel grating

This product is composed of steel grating with certain cross-load bearing capacity and embossed patterned plates with a sealed surface. After the composite steel grating is hot-dipped galvanized, it may experience warping and deformation due to heat, especially for larger-sized steel gratings, which can be difficult to flatten. Please note the selection of the size. The composite steel grating commonly uses Series 3 steel grating as the base, but can also use Series 1 or Series 2 steel gratings. The embossed steel grating usually employs 3mm thick plates, but 4mm, 5mm, or 6mm plates can also be used. A reinforced mesh can be bonded to the front or back of the composite steel grating to form a reinforced mesh board, which can prevent small items from falling out. The use of reinforced mesh boards in granaries, dining halls, and warehouses can prevent small animals like rats 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 weld joints. Use steel grating installation clamps to install without damaging the galvanized layer, and it's 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 firm and reliable, and check regularly to prevent the clamps from loosening or falling off. It's best to weld or add rubber pads to the steel grating near vibration.

Platform Steel Grating

Platform steel grating is a widely applicable steel grating product, primarily used for various platforms in factories, workshops, mines, and ports. It boasts an elegant and impressive appearance, is easy to install, and represents a new generation of building products for replacement.

Platform specialty products include: steel grating plates.

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

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

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

4. Generally speaking: The welding standard for the edge of the 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 of not less than 3mm, with a 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 very ideal decorative effect, although 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 depending on the application environment).

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

Manufacturing Method:

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

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. 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, well-ventilated and illuminated, modern style, aesthetically pleasing, non-slip, easy to clean, and simple installation.

Usage:

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 construction, 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 special properties, stainless steel grating panels are widely employed 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 using either welding or bolt connections. Welded tread plates can be directly welded to the stair beams.

Overview

Welded step plates that are directly attached to the ladder beam, without the need for additional side plates. This is relatively cost-effective but not easily removable. Step plates fastened with bolts require reinforced side plates, pre-drilled for easy installation and can be reused. Customers can customize according to their specific needs, with steel grating plates available in various sizes to match the corresponding staircase.

Features & Applications

Step plates are extremely easy to install; no complex assembly 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 accumulation of dirt.

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

Grating panel

The grating is made by crossing flat steel bars at specific intervals with crossbars,焊接 into a steel product featuring square openings in the center, primarily used for drain covers, steel structure platform panels, and steps for steel ladders. The crossbars are generally made of twisted square steel.

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

The manufacturing methods of grating panels: There are two types, machine pressure welding and handcrafted. Machine pressure welding uses a high-voltage resistance welding machine, where a robotic arm automatically places the crossbars across uniformly arranged flat steel bars. The crossbars are then pressed into the flat steel with powerful electric welding power and hydraulic pressure, resulting in high-quality grating panels with strong weld points, excellent stability, and enhanced strength. Handcrafted grating panels 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 flat steel, and it is impossible to weld at every contact point, thus the welding is not as secure, and the strength is reduced.

Grille plate 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. Attractive surface luster

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

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

Studded steel grating

Interlocking Steel Grating: Also known as Insert-type Steel Grating, it is manufactured through processes such as slotting (punching), insertion fitting, welding, and finishing, using certain sizes of carbon steel, stainless steel, brass, and aluminum plates. This 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. The product is widely used for drain covers, stair treads, and pond covers.

Category:

Four types of interlocking steel grating can be categorized: Classification of interlocking steel grating: Differing 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 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 steel grating is usually less than 2000mm.

2. Heavy-duty steel grating is a steel grating product made by interlocking high-width steel and crossbar steel, which is tightly formed under 1200 tons of pressure. It is suitable for high-span load-bearing applications.

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

4. Sunshade Interlocking Steel Grating: The load-bearing flat steel of the sunshade interlocking steel grating features 30° or 45° slits, and the slotting flat steel is locked into shape. We can deliver grating panels with different spacing and specifications as required, using materials such as carbon steel, stainless steel, aluminum, etc. The height of the grating panels is less than 100mm.

Features: The steel grating panels feature solid weld points, uniform hole spacing, flat surface, attractive and practical design, lightweight, high strength, corrosion resistance, and maintenance-free.

Usage: Widely used in civil and commercial buildings, theaters, subways, city rail projects, and other municipal engineering fields. Suitable for ceiling, 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 flat surface, with an aesthetically pleasing and practical design. They are both functional 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.