Galvanized Steel Grating Manufacturer

Introduction to Steel Grating

Steel grating, also known as steel grating panels or grid panels, is焊接 from flat steel and twisted steel. It is durable and cost-effective compared to other products, primarily used in power plant platforms, parking lots, maintenance platforms, manhole covers, and step plates. It is also utilized in environmental protection equipment and wastewater treatment. Steel grating is widely applied in the fields of petrochemicals, electricity, tap water, wastewater treatment, ports, building decoration, shipbuilding, self-propelled parking lots, municipal engineering, and environmental protection engineering, including platforms, walkways, gangways, manhole covers, ladder, fences, etc.

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 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 stair treads. 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 steel and crossbars at a certain spacing using a 200-ton hydraulic resistance welding automation machine to form the original plate. After cutting, punching, and edging, the finished products as per customer requirements are produced. Spacing of Load-bearing Flat Steel: The spacing between two adjacent load-bearing flat steels is commonly 30, 40, 50, and other sizes. Spacing of Crossbars: The distance between two adjacent crossbars is typically 50, 76, 80, 100, and other sizes, which can be produced according to customer specifications and customized in various steel grating plate models to meet customer needs.

Product Features of Steel Grating Plates:

1: High strength, lightweight structure.

2: Excellent corrosion resistance, durable for long-term use.

3: Aesthetically pleasing with a glossy surface.

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

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

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, walkways, gangways, manhole covers, ladder covers, fences, and ceiling systems for industrial and civil buildings such as large sports venues, exhibitions, large-scale commercial buildings, stations, docks, and airports.

Hot-Dip Galvanized Steel Grating

The product is a finished item made through deep processing, including cutting, notching, punching, and edging, from a base plate that is焊接 using a high-pressure resistance welding machine. The base plate consists of load-bearing flat steel and crossbars arranged in a certain spacing in a warp and weft pattern.

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

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

2. Hot-dip galvanized steel grating surfaces are categorized by 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.

Identification 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-Dipped Galvanized Steel Grating Bar Spacing: Series 1 is 100mm, Series 2 is 50mm. Other specifications available upon request.

(3) Hot-Dip Galvanized Steel Grating扁钢: Made of Q23 steel or stainless steel, available in flat, anti-slip toothed, and I-section profiles. 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, 100*10, etc.

(4) Hot-Dipped Galvanized Steel Grating Crossbars: Made from round steel, twisted square steel, square steel, or hexagonal steel of material grade Q23 or 304 stainless steel. Twisted square steel is produced by drawing through square dies from round wire and then twisting it, with common sizes including 5*5, 6*6, 8*8mm, etc.

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

Hot-dip galvanized steel grating applications: Widely used in platforms, walkways, bridges, manhole covers, ladder covers, fences, railings, etc., for sectors 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 aesthetic appeal and excellent corrosion and rust prevention, which extends its service life. It is highly favored by customers.

Hot-dip galvanized steel grating plates feature high strength and lightweight structure; their sturdy grid pressure welding structure offers high load-bearing capacity, lightweight design, and ease of lifting; they also boast an aesthetically pleasing appearance and long-lasting durability.

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, trestles, manhole covers, well covers, ladders, fences, and guardrails in the fields of petrochemicals, power plants, waterworks, wastewater 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 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, port wharfs, and other special demand 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 welded steel grating refers to steel grating with steel bars as transverse bars, suitable for unidirectional loading conditions.

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. Available in flat heavy-duty steel grating and ribbed heavy-duty steel grating, classified by surface shape.

Due to cost considerations, we recommend using flat steel grating in most cases, 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 patterned plates with a sealed surface. After hot-dip galvanizing, composite steel grating may experience warping and deformation due to heat, especially with larger sizes, making leveling 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 can also be used; patterned steel grating typically uses 3mm thick plates, but 4mm, 5mm, or 6mm plates can also be employed. A double mesh can be formed by welding steel mesh to the front or back of the composite steel grating, preventing small items from falling out. The use of double mesh in grain silos, restaurants, and warehouses can prevent the entry of mice and other small animals.

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.

Platform Steel Grating

Platform steel grating is a widely applicable steel grating panel product, primarily used in factory, workshop, mining, and port platforms. It offers aesthetics and convenience in installation, representing a new generation of building products for replacement.

Platform specialty products include: steel grating plates.

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

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

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 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 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 strong 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 protected differently according to different usage environments).

Material: Generally, stainless steel grades such as 304, 316, and 316L are selected.

Manufacturing Process:

There are two types: machine press welding and handcrafted. Machine press welding utilizes a high-pressure resistance welding machine, where a robotic arm automatically places the crossbar horizontally on evenly arranged flat steel bars. It 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, excellent stability, and high strength. Handcrafted steel gratings are first pierced on the flat steel, followed by inserting the crossbar and spot welding it into the holes. There will be gaps between the crossbar and flat steel, but each contact point is焊接, achieving an equivalent melting connection with the flat steel and 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 gloss.

c. The finished product is heat 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, good ventilation and light transmission, 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 factories, food processing plants, and bridge projects, 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 Cover Plates

Stainless steel trench covers, also known as stair tread plates, steel stair tread plates, and tread plates, are a type of stairboard used on platforms. They come in two installation types: welded connection and bolted connection. Tread plates that are welded in place can be directly welded onto the stair stringers.

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. However, they are not easily removable. Tread plates secured with bolts require thicker side panels, with holes pre-drilled for installation, which can be directly fastened with bolts and are reusable. Customers can customize according to their specific needs, using suitable steel grating panels to create various sizes to match the corresponding staircase.

Features and Applications

(1) The installation of the step board is extremely simple, requiring no complicated setup.

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

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

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

Tread plates are widely used in platforms and walkways of power plants, waterworks, and other factories, as well as in municipal and environmental protection projects. They are also extensively applied in large-scale areas such as theaters, visitor platforms, and parking lots.

Grating panel

Grating panels are made by crossing flat steel bars at specific intervals with crossbars, then welded together to form a steel product with square grids in the middle. They are primarily used for drain covers, steel structure platform plates, and the steps of 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. 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 evenly on the flat steel strips. The strong welding power and hydraulic pressure then weld the crossbars into the flat steel, resulting in high-quality grating plates with strong weld points, excellent stability, and strength. Handcrafted grating plates are first pierced with holes on 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's impossible to weld every contact point, thus the welding is not as secure, and the strength is reduced.

Grille panel features:

1. High strength, lightweight structure: The sturdy grid pressure welding structure ensures high load-bearing capacity and a light structure.

2. Easy for hoisting and other features;

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

4. Attractive surface luster

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

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

Interlocking 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 steel, stainless steel, brass, and aluminum plates of specific dimensions. This product combines the high strength, corrosion resistance, and maintenance-free features of ordinary steel grating with a uniform structure, lightweight elegance, natural harmony, and tasteful style. It is widely used for drain covers, stair treads, and pond covers.

Category:

Interlocking steel grating types can be categorized into four: Classification of interlocking steel grating: Divided by different insertion methods and angles, including pressed steel grating, heavy-duty steel grating, integral steel grating, sunshade curtain steel grating, etc.

1. Pressed Steel Grating: After cutting slots in the bearing flat steel, the crossbar flat steel is locked and shaped. Generally, the large processing height for producing standard steel grating is 100mm. The length of steel grating is usually less than 2000mm.

2. The heavy-duty steel grating is a product made by interlocking high-width steel bars with cross bars, tightly formed under 1200 tons of pressure. It is suitable for high-load-bearing spans.

3. Integral Grating Panels - The load-bearing flat bars and cross bars of the integral interlocking steel grating have the same height and slot depth, which is half that of the load-bearing flat bar. 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° slits, with the slot bars formed by pressing and locking. We can deliver grating panels with different spacings and specifications as per requirement, using materials such as carbon steel, stainless steel, aluminum, etc. The height of the grating panels 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.

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), billboard signs, various covers, etc. The interlocking grid panels feature firm welding 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, we have developed more than a hundred varieties, and our export products, with sixteen popular choices, have been highly favored by customers.