Steel Grating Manufacturer

Introduction to Steel Grating

Steel grating, also known as steel grate or grating panel, 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 step plates. It is also used in environmental protection equipment and wastewater treatment. Steel grating is widely applied in the fields of petrochemicals, electricity, water supply, wastewater treatment, port terminals, architectural decoration, shipbuilding, mobile parking lots, municipal engineering, and environmental sanitation projects, for platforms, walkways, gangways, covers, manhole covers, ladders, and fences, etc.

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,焊接成带有方形格子的结构。Primarily used for drain covers, steel structure platform panels, and stair treads for steel ladders. The crossbars are typically made of twisted square steel.

Manufacturing Process of Steel Grating Plates: Steel grating plates are manufactured by welding load-bearing flat bars and cross bars at a specified spacing using a 200-ton hydraulic resistance welding automation system to form the base plate. The plate is then processed through cutting, drilling, and edging, etc., to meet the customer's requirements. Load-bearing flat bar spacing: The distance between adjacent load-bearing flat bars is commonly 30, 40, 50, and other sizes. Cross bar spacing: The distance between adjacent cross bars is usually 50, 76, 80, 100, and other sizes, and can be produced according to customer specifications. Customized steel grating plates of various models are available based on customer needs.

Product Features of Steel Grating Plates:

1: High strength, lightweight structure.

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

3: Attractive appearance, glossy surface.

4: Non-sticky for dirt, snow, and 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 Applications: Widely used in the petrochemical, tobacco, power, water supply, wastewater treatment, port, 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 buildings, stations, harbors, and airports.

Hot-Dip Galvanized Steel Grating

The product is a finished item, which is deep-processed from an original plate made by welding load flat steel and cross bars at certain intervals in a longitudinal and transverse arrangement on a high-voltage resistance welding machine, followed by cutting, beveling, punching holes, and edging as required by the customer.

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

1. Hot-Dip Galvanized Grating, categorized by manufacturing process, includes Pressure-Welded Hot-Dip Galvanized Grating and Pressure-Locked Hot-Dip Galvanized Grating

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

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

Labeling 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-Dip Galvanized Steel Grating Bar Spacing: Series 1 is 100mm, Series 2 is 50mm. Other specifications are 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, 100*10, etc.

(4) Hot-Dip Galvanized Steel Grating Crossbars: Made of round steel, twisted square steel, square steel, or hexagonal steel with material of Q23 or 304 stainless steel. Twisted square steel is produced by drawing through square dies from round steel wire and twisting, 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, lightness in structure, and ease of hoisting; aesthetically pleasing and durable.

Hot-Dip Galvanized Steel Grating Applications: Widely used in platforms, walkways, bridges, manholes, covers, ladders, fences, guardrails, etc., in fields such as petrochemical, power plants, water treatment plants, sewage treatment plants, municipal engineering, and environmental sanitation projects.

Hot-Dip Galvanized Steel Grating

Hot-dip galvanized steel grating panels are one of the most commonly used products in steel grating applications, widely utilized due to their attractive appearance and excellent corrosion and rust prevention, which also extends their service life, making them highly favored by customers.

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

Corrosion Resistance: The zinc coating surface forms a stable protective film 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, ladder covers, fences, guardrails, and more 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 those with a bearing flat steel width of more than 65mm and a bearing flat steel thickness of more than 6mm. Its transverse bars are usually 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 heavy load applications, suitable for airports, highways, industrial platforms, port terminals, and other special requirement sites.

3. Heavy-duty steel grating classification:

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

A. Heavy-duty welded steel grating refers to steel grating with reinforcing bars used as cross bars, suitable for one-way loading conditions.

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

C. Surface shape divides them 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 anti-slip applications such as offshore drilling platforms.

Composite steel grating

This product is composed of steel grating panels with certain transverse load-bearing capacity and patterned plates with a sealed surface. After the composite steel grating is heat galvanized, it may experience warping and deformation due to the heat, especially for larger-sized panels, which can be challenging to level. Please note the selection of the size. 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 be utilized. The composite steel grating can be assembled with steel mesh on the front or back to create a double-layered panel, which can prevent small items from falling out. The double-layered panel is suitable for use in grain silos, restaurants, and warehouses to 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 without damaging the galvanized layer, and disassembly is convenient. Each set 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 standard spacing for steel grating installation is generally 100mm. Ensure the installation is firm and reliable during assembly, and regularly inspect to prevent clamp loosening or detachment. For steel grating near vibration, it is recommended to weld or add rubber pads.

Platform Steel Grating

Platform steel grating is a widely applicable steel grating panel product, mainly used for various platforms in factories, workshops, mines, and ports. It is aesthetically pleasing, easy to install, and represents a new generation of building products, ideal for replacement.

Platform specialty steel grating products include:

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

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

3. Handles and hinges can be installed on platform steel grating panels that need 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, one out of every four panels; Series 3, one out of every three panels. The weld is a single-sided fillet weld with a minimum thickness of 3mm, and the weld length is 20mm.

Stainless Steel Grating

Also known as stainless steel grating panels. There are typically two manufacturing methods: one involves welding together stainless steel flat bars and round bars; the other is a connection method using stainless steel flat bars. They possess excellent corrosion resistance, have a neat appearance, and offer a very ideal decorative effect, but they usually come at a higher price.

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 304, 316, 316L, etc., are used.

Manufacturing Process:

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. 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, high stability, and strength. Handcrafted steel gratings are first pierced on the flat steel, then the crossbar is inserted into the holes and spot-welded. There will be gaps between the crossbar and the flat steel, but every 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 the strength slightly improved. However, the appearance is not as aesthetically pleasing as that of the machine-welded type!

Surface Treatment:

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

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

c. The finished products are heat and polished, followed by electrochemical polishing, and then chrome plated to achieve a mirror-like finish.

Advantages:

Lightweight, high strength, high load-bearing capacity, material-saving and cost-effective, ventilated and light-transmitting, modern style, aesthetically pleasing, anti-slip, easy to clean, and simple to install.

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 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 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; no need for additional side plates for the tread. Economical to use but not easily removable. Bolted tread plates require thicker side plates, with holes pre-drilled for installation, which can be reused and recycled. Customers can customize according to their specific needs, using suitable steel grating to create various sizes to match the corresponding staircase.

Features & Applications

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

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

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

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

Tread plates find extensive use in various 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 widely employed on ground platforms in large venues such as cinemas, visitor platforms, and parking lots.

Grating panels

The grating is made by crossing flat steel bars at specific intervals with horizontal bars, then welded into a steel product with square grid patterns in the middle. It is primarily used for drain covers, steel structure platform panels, and step plates for steel ladders. The horizontal bars are typically made of twisted square steel.

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

The manufacturing methods of grating panels: There are two types, machine press welding and handcrafted. Machine press welding utilizes a high-pressure resistance welding machine, where robotic arms automatically place the crossbars across uniformly arranged flat steel bars. The strong welding power and hydraulic pressure then weld the crossbars into the flat steel, resulting in high-quality grating panels with strong weld points, excellent stability, and strength. Handcrafted grating panels are initially punched 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's 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, lightweight structure: The sturdy grid pressure welding structure offers high load-bearing capacity and light structure.

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 properties; resistant to 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.

Interlocking steel grating

Connector Steel Grating: Also known as interlocking steel grating, it is manufactured through processes such as slotting (punching), interlocking, welding, and finishing, using plain carbon flat steel, stainless steel, brass plate, and aluminum plate of certain sizes. This connector steel grating combines the high strength, corrosion resistance, and maintenance-free features of ordinary steel grating, with a uniform structure that is light, exquisite, natural, harmonious, and elegant. It 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 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 interlocking steel grating is a type of steel grating product that features high-ribbed steel and cross-ribbed steel interlocking, and is formed under 1200 tons of pressure. It is suitable for high-span and heavy-load applications.

3. Integral Grating Panels - The bearing flat bars and cross bars of the integral grating panels are of the same height, with slot depths that are half that of the bearing flat bars. The height of the grating panels does not exceed 100mm. The length of the grating panels is typically 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 formed by slotting and locking. We can deliver grating panels with different spacings and specifications as per requirements, 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, smooth surface, aesthetically pleasing design, practical and 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, indoor and outdoor decoration, platform walkways, ventilation windows (wells), billboard signs, various covers, etc. The interlocking grill 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, including sixteen, have been highly favored by customers.