Galvanized Steel Grating Manufacturer

Introduction to Steel Grating

Steel grating, also known as steel grate or grating plate, 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 lots, maintenance platforms, trench covers, and step plates. It is also used in environmental protection equipment and wastewater treatment. Steel grating is widely applied in platforms, walkways, causeways, trench covers, manholes, ladders, fences, and other areas in the oil and chemical industry, power supply, water supply, wastewater treatment, ports, construction decoration, shipbuilding, self-propelled parking lots, municipal engineering, and environmental engineering.

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 specific intervals with crossbars,焊接成带有方形格子的结构。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 Method of Steel Grating Plates: Steel grating plates are made by welding load-bearing flat bars and cross bars at a certain spacing using a 200-ton hydraulic resistance welding automation machine, followed by cutting, punching, and edging processes to produce the product as per customer requirements. Spacing of Load-bearing Flat Bars: The spacing between two adjacent load-bearing flat bars is commonly 30, 40, 50, and other sizes. Spacing of Cross Bars: The distance between two adjacent cross bars is typically 50, 76, 80, 100, and other sizes, which can be produced according to customer specifications and customized to various steel grating plate models based on customer needs.

Product Features of Steel Grating Plates:

1: High strength, lightweight structure.

2: Excellent corrosion resistance and durability.

3: Aesthetically pleasing with a glossy surface.

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

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

6: Easy to install and dismantle.

Product Applications: Widely used in the petrochemical, tobacco, electricity, water supply, wastewater treatment, port and wharf, construction 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 facilities, stations, ports, and airports.

Hot-Dip Galvanized Steel Grating

The product is a finished item, which is deeply processed from an original plate made by welding load flat steel and crossbars at certain intervals in a longitudinal and transverse arrangement on a high-pressure resistance welding machine, followed by cutting, notching, punching, and edge wrapping according to customer requirements.

Hot-dip galvanized steel grating is categorized into the following types:

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

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

Marking Method:

(1) Hot-Dip Galvanized Steel Grating扁钢间距: 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 available upon request.

(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 formed by drawing through square molds from round steel coil and twisting, with common sizes including 5*5, 6*6, 8*8mm, etc.

Features include: High strength, lightweight structure: The sturdy grid weld structure offers high load-bearing capacity, light structure, and ease of hoisting; aesthetically pleasing and durable.

Hot-Dipped Galvanized Steel Grating Applications: Widely used in platforms, walkways, gangways, manhole covers, grates, ladders, fences, and railings for industries such as petrochemicals, power plants, waterworks, sewage treatment plants, municipal engineering, and environmental protection projects.

Hot-Dipped Galvanized Steel Grating

(Hot-dip galvanized steel grating) is a highly popular product with broad applications in steel grating, as it is焊接after formation and then subjected to hot-dip galvanizing. Not only does it boast an aesthetically pleasing appearance, but it also provides excellent corrosion and rust resistance, extending its service life, and is deeply favored by numerous customers.

Hot-dip galvanized steel grating plates feature high strength and lightweight structure; their sturdy grid pressure-welded construction 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., for industries such as petrochemicals, power plants, waterworks, wastewater treatment plants, municipal engineering, and environmental protection projects.

Heavy-duty steel grating

1. Heavy-duty steel grating introduction:

Heavy-duty steel grating refers to the type with a load-bearing width of 65mm or more and a load-bearing thickness of 6mm or more. The transverse bars typically use flat steel or 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, harbor wharfs, and other special needs 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.

Heavy-duty steel grating with reinforced bars, suitable for unidirectional loading conditions.

B. Heavy-duty pressed steel grating refers to grating with flat steel bars, suitable for bidirectional loading applications. However, it is significantly more expensive than welded steel grating, and is generally 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 applications requiring anti-slip properties, such as offshore drilling platforms.

Composite steel grating

This product is composed of steel grating with certain cross-bearing capacity and patterned boards with a sealed surface. After the composite steel grating is hot-dip galvanized, it may experience warping and deformation due to heat, especially for larger-sized steel gratings, which can be difficult to level. Please pay attention to the selection. The composite steel grating commonly uses series 3 steel grating as the base, but series 1 or series 2 steel gratings can also be used; the patterned steel grating usually employs 3mm thick plates, but 4mm, 5mm, or 6mm plates can also be chosen. By welding steel mesh to the front or back of the composite steel grating, a reinforced mesh panel is formed, which can prevent small items from falling out. The use of reinforced mesh panels in grain silos, dining rooms, and warehouses can prevent the entry of small animals like rats.

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 without damaging the galvanized layer, and disassembly is convenient. 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 grating is usually 100mm. Ensure the installation is secure and reliable during assembly, and regularly inspect to prevent clamps from loosening or falling off. It is recommended to weld or add rubber pads to steel grating near vibration.

Platform steel grating

Platform steel grating is a widely applicable steel grating panel product, mainly used in various platforms in factories, workshops, mines, and ports. It boasts an elegant and imposing appearance, easy installation, and is a new type of building product that represents an upgrade.

Platform special products include: Steel Grating Sheets.

1. Kick plates (edging boards), patterned plate guards, and installation accessories such as connecting parts can be added around the steel grating.

2. Use flat steel strips with different specifications than those used for the steel grating, 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 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 angular 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 possess excellent corrosion resistance, have a clean appearance, and offer a highly desirable decorative effect, although they are generally more expensive.

Stainless Steel Grating Categories:

It can be categorized into flat, toothed, and I-shaped designs, with over 200 specifications and varieties (the surface can be protected differently according to different usage environments).

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

Manufacturing Method:

There are two types: machine welding and handcrafted. Machine welding utilizes a high-pressure resistance welding machine, where a robotic arm automatically places the crossbar across uniformly arranged flat steel bars, then welds it into the flat steel using strong welding power and hydraulic pressure, resulting in high-quality steel grating with strong weld points, high stability, and strength. Handcrafted steel grating involves first punching holes in the flat steel, then inserting the crossbar and spot-welding it into place. There will be gaps between the crossbar and the flat steel, but each contact point is焊接, achieving equivalent melting connection between the flat steel and the twisted steel, thus making the welding more solid and slightly enhancing the strength, although the appearance is not as aesthetically pleasing as that of 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. Products are heat-treated and polished, followed by electrochemical polishing, and then chrome-plated to achieve a mirror-like finish.

Advantages:

Lightweight, high strength, high load-bearing capacity, cost-effective, good ventilation and lighting, modern style, aesthetically pleasing, anti-slip, easy to clean, and simple installation.

Usage:

Stainless steel grating panels are widely used in power plants, chemical factories, oil refineries, steel mills, machinery manufacturing plants, shipyards, paper mills, cement plants, food processing plants, and bridge projects, municipal engineering projects, and wastewater treatment facilities, where corrosion resistance is a high priority. The selection of stainless steel grating panels is the same as that of carbon steel grating panels. Due to their unique properties, stainless steel grating panels are extensively applied 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 for platforms. They come in two installation methods: welded joints and bolted joints. 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 additional side panels for the tread plates, offering a more economical option but not easily disassembled. Tread plates with bolt fastening require reinforced side panels, which are pre-drilled for direct bolt installation, allowing for recyclability and reuse. Customers can customize according to their specific needs, with suitable steel grating materials available for various sizes to match corresponding staircases.

Features and Applications

Step plates are incredibly easy to install, requiring no complex setup.

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

(3) High strength, lightweight structure, and durable tread plate.

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

Tread plates find extensive applications across a variety of settings, including platforms and walkways in power plants, water treatment facilities, and factories, as well as in municipal and environmental protection projects. They are also commonly used in large 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 a certain spacing with crossbars,焊接成带有方形格子的形式，mainly used for drain covers, steel structure platform panels, and stair tread panels. 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. 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 methods, machine press welding and handcrafted. Machine press welding utilizes a high-pressure resistance welding machine, where a robotic arm automatically places the crossbars over evenly spaced flat steel bars, and then the strong welding power and hydraulic pressure weld the crossbars into the flat steel, resulting in high-quality grating plates with strong weld points, excellent stability, and enhanced strength. Handcrafted grating plates are first pierced 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 the flat steel, and it is impossible to weld every contact point, thus the welding is not as secure, and the strength is somewhat reduced.

Grille plate features:

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

2. Features such as ease of hoisting;

3. Attractive appearance and durable: The hot-dipped galvanized surface treatment provides excellent corrosion resistance.

4. Attractive surface sheen

5. Good ventilation, lighting, heat dissipation, explosion-proof, and anti-slip performance; resistant to 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, and food processing.

Studded 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 flat steel, stainless steel, brass, and aluminum plates of certain 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, naturally harmonious, and elegant. This product is widely used for drain covers, stair treads, and pond covers.

Category:

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

1. Pressed steel grating: After cutting grooves in the carrying flat steel, the cross-bar 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 typically less than 2000mm.

2. Heavy-duty grating panels are a type of steel grating product made by interlocking high-thickness and crossbar flat steels, which are tightly molded under 1200 tons of pressure. They are suitable for high-span load-bearing applications.

3. Integral Steel Grating Panels - The load-bearing flat steel and crossbar flat steel of the integral interlocking steel grating have the same height and slot depth, which is half of the load-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, with the slot bars formed by pressing and locking. We can deliver grating panels with different spacings and specifications as per requirement, available in materials such as carbon steel, stainless steel, aluminum, etc. The height of the grating panels is less than 100mm.

Features: The steel grating features robust welding points, uniform hole spacing, flat surface, aesthetically pleasing design, practical 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), signboards, various covers, etc. The interlocking grate panels feature sturdy weld 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, hundreds of varieties have been developed, and sixteen export products are particularly favored by customers.