Galvanized Grating Manufacturer

Introduction to Steel Grating

Steel grating, also known as steel grid or grating panel, is made by welding 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 various fields such as petrochemicals, electricity, water supply, wastewater treatment, ports, construction decoration, shipbuilding, self-propelled parking lots, municipal engineering, and environmental sanitation projects, for platforms, walkways, gangways, covers, manholes, ladders, fences, and more.

Steel Grating Plate

Also known as steel grating or grating plate, it is a type of steel product made by crossing flat steel bars at certain intervals with crossbars, then welded together to form a square grid pattern in the middle. 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.

Manufacturing Method of Steel Grating Panels: Steel grating panels are made by arranging load-bearing flat steel and cross bars at certain intervals, then焊接 using a 200-ton hydraulic resistance welding automation equipment 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 Steel: The spacing between adjacent load-bearing flat steels 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 to various steel grating panel 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: 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 dismantle.

Product Applications: Widely used in the petrochemical, tobacco, electricity, water supply, wastewater treatment, port terminal, 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, large sports venues, exhibitions, large-scale commercial buildings, stations, terminals, and airports, as well as ceiling systems for industrial and civil buildings.

Galvanized steel grating

The product is a finished item, deep-processed to meet customer specifications, from a base plate made by welding load flat steel and crossbars at certain intervals into a grid pattern on a high-pressure resistance welding machine, followed by cutting, notching, punching, and edging processes.

Hot-dipped 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. 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-dip galvanized steel grating and composite hot-dip galvanized steel grating.

Marking Method:

(1) Hot-Dipped Galvanized Steel Grating扁钢间距: 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 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-Dipped Galvanized Steel Grating Crossbars: 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 steel and then twisting it, with common sizes including 5*5, 6*6, 8*8mm, etc.

Characterized by: High strength, lightweight structure: The sturdy grid pressure-welded structure features high load-bearing capacity, lightness, and ease of hoisting; aesthetically pleasing and durable.

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

Hot-Dip Galvanized Steel Grating

(Hot-dip galvanized steel grating) is a highly popular product with extensive applications in steel grating, as it is焊接after forming and then subjected to hot-dip galvanizing. Not only does it possess an attractive and elegant appearance, but it also offers excellent corrosion and rust prevention, thereby extending its service life, making it deeply favored by a wide range of customers.

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

Corrosion Resistance: The zinc layer forms a stable protective film 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, ladder covers, fences, guardrails, etc., for 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.

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. Its cross bars are typically made of flat steel or reinforced steel bars with a diameter of 10mm or 12mm.

2. Heavy-duty steel grating applications:

Heavy-duty steel grating is designed and manufactured for heavy load applications, suitable for airports, highways, industrial platforms, port terminals, and other special demand situations.

3. Heavy-duty steel grating categories:

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

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

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 categorized 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 heavy-duty ribbed 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 boards with a sealed surface. After hot-dip galvanizing, composite steel grating may undergo warping and deformation due to heat, especially with larger sizes, making flattening difficult. 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 grating can also be used. Patterned steel grating typically uses 3mm thick plates, but 4mm, 5mm, or 6mm plates can also be used. A double mesh panel can be formed by welding steel mesh on the front or back of the composite steel grating, which can prevent small items from falling out. Using double mesh panels in grain silos, restaurants, 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 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 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 sources.

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 boasts an elegant and imposing appearance, easy installation, and is a new type of building product that replaces the old ones.

Our platform's specialty steel grating products are as follows:

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

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

3. Handles and hinges can be installed on 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 not less than 3mm, with a length of 20mm.

Stainless Steel Grating

Also known as stainless steel grating panels. Typically, there are two methods of production: one involves welding stainless steel flats and round bars together; the other is the interlocking of stainless steel flats. They offer excellent corrosion resistance, a neat appearance, and quite ideal decorative effects, but 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 according to various usage environments).

Material: Typically stainless steel grades 304, 316, 316L are 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 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 and spot-weld it into the holes. There is a gap 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, thus making the welding more solid and slightly increasing the strength. However, the appearance is not as aesthetically pleasing as that of the machine-welded version!

Surface Treatment:

After pickling and passivation, the surface is matte gray-white.

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

c. After heat treatment and polishing, the product is electrochemically polished and then chrome-plated, achieving a mirror-like finish.

Advantages:

Lightweight, high strength, large load-bearing capacity, material-saving and economical, ventilation and light penetration, modern style, aesthetically pleasing, anti-slip, easy to clean, and simple to install.

Application:

Stainless steel grating panels are 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 panels is similar to 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 grate plates, also known as stair tread plates, steel stair tread plates, and step plates, are a type of stair tread used on platforms. They come in two installation methods: welding and bolt connections. Stair tread plates with welding 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 treads; more economical in cost but not easily removable. Tread plates secured with bolts require thicker side panels, with holes pre-drilled for installation, which can be reused and recycled. Customers can customize according to their specific needs, with suitable steel grating panels 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 structure, and durable stepping board.

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

Tread plates are widely used in various applications, including platforms and walkways in power plants, water treatment facilities, and other industrial settings, as well as in municipal and environmental protection projects. They are also commonly found on ground platforms in large venues such as theaters, visitor platforms, and parking lots.

Grating panels

Grating panels are steel products formed by crossing flat steel bars at specific intervals with crossbars,焊接成带有方形格子的结构。They are primarily used for drain covers, steel structure platform panels, and steps for steel ladders. The crossbars are typically made of twisted square steel.

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

Manufacturing methods of grating panels: There are two types, machine welding and handcrafted. Machine welding utilizes a high-pressure resistance welding machine, where a robotic arm automatically places the crossbars across evenly spaced flat steel bars, and then welds them securely into the flat steel using strong electric welding power and hydraulic pressure, resulting in high-quality grating panels with strong weld points, excellent stability, and strength. Handcrafted grating panels are first pierced 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 is impossible to weld every contact point, so the welding is not as secure, and the strength is reduced.

Grille panel features:

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

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 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.

Slotted steel grating

Connector steel grating: Also known as interlocking steel grating, it is manufactured through processes such as slotting (piercing), interlocking, welding, and finishing, using plain carbon flat steel, stainless steel, brass, and aluminum plates of specific dimensions. This connector steel grating combines the high strength, corrosion resistance, and maintenance-free features of ordinary steel grating with uniform composition, lightweight and exquisite structure, natural harmony, and elegant style. It is widely used for drain covers, stair tread plates, 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, sunshade curtain steel grating, etc.

1. Pressed Steel Grating: After cutting grooves in the carrying flat steel, the cross bar flat steel is locked into shape. Generally, the large processing height for producing standard steel grating is 100mm. The length of the steel grating is typically less than 2000mm.

2. Heavy-duty interlocking steel grating is a steel grating product formed by high flange steel and crossbar flange steel interlocking and tightly molded under 1200 tons of pressure. It is suitable for high-span load-bearing 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 of the load-bearing flat steel. The height of the steel grating does not exceed 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° bevel grooves, and the groove bars are locked into place with the flat steel. We can deliver gratings with different spacings and specifications according to your needs, using materials such as carbon steel, stainless steel, aluminum, etc. The height of the grating is less than 100mm.

Features: The 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, platform walkways, ventilation windows (wells), billboard signs, various covers, etc. The interlocking grid panels have firm welding points, uniform hole spacing, and a smooth surface, featuring both aesthetic and practical design. They are not only functional items but also works of art. Over the years, we have developed more than a hundred varieties, with sixteen export products particularly favored by customers.