Galvanized 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 lots, maintenance platforms, trench covers, and step boards. It is also used in environmental protection equipment and wastewater treatment. Steel grating is widely applied in the fields of oil and petrochemicals, electricity, water supply, wastewater treatment, ports, construction decoration, shipbuilding, self-propelled parking lots, municipal engineering, and environmental protection engineering, including platforms, walkways, gangways, covers, manholes, ladders, fences, and more.

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 certain intervals with crossbars and welding them into a square-grid pattern. 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 Process of Steel Grating: Steel grating is made by arranging load-bearing flat bars and crossbars at certain intervals and then welding them together using a 200-ton hydraulic resistance welding automation system to form the original plate. The plate is then processed through cutting, drilling holes, and edge wrapping to meet customer specifications. Load-bearing flat bar spacing: The distance between adjacent load-bearing flat bars is commonly 30, 40, 50, and other sizes. Crossbar spacing: The distance between adjacent crossbars is typically 50, 76, 80, 100, and more, which can be produced according to customer requirements and customized to various steel grating models based on customer needs.

Product Features of Steel Grating Plates:

High strength, light structure.

Corrosion-resistant with long-lasting durability.

3: Attractive appearance with a glossy surface.

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

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

6: Easy to install and dismantle.

Product Applications: Widely used in the petrochemical, tobacco, electricity, water supply, wastewater treatment, port, wharf, construction decoration, shipbuilding, self-propelled parking lots, municipal engineering, environmental protection engineering, and other platforms, walkways, gangways, manhole covers, ladder covers, fences, and ceilings for industrial and civil buildings such as large sports venues, exhibitions, large-scale commercial complexes, stations, docks, and airports.

Hot-Dip Galvanized Steel Grating

This product is a finished item, which is deep-processed from an original plate. The plate is焊接 on a high-voltage resistance welding machine using load flat steel and cross bars, arranged at a certain spacing in a warp and weft pattern. It then undergoes processes such as cutting, beveling, punching holes, and edging to meet the customer's specifications.

Hot-dip 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.

Identification Method:

(1) Hot-dip galvanized steel grating扁steel spacing: 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 for customization.

(3) Hot-Dip Galvanized Steel Grating: Available in materials such as Q23 or stainless steel, featuring flat, anti-slip toothed, and I-section designs. Standard 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, and more.

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

Features include: High strength, lightweight structure: The sturdy grid pressure welding structure offers high load-bearing capacity, lightweight, and easy to hoist; attractive appearance, durable for long-term use.

Hot-dip galvanized steel grating applications: Widely used in platforms, walkways, gangways, manhole covers, grates, ladders, fences, and guardrails in fields 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 panels are one of the most commonly used products in steel grating applications, widely utilized. After welding and forming, these panels undergo hot-dip galvanizing, which not only enhances their aesthetic appeal but also provides excellent corrosion and rust resistance, thereby extending their service life. They are highly favored by a wide range of customers.

Hot-dip galvanized steel grating plates feature high strength and light 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: 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, bridges, manhole covers, grates, ladders, fences, and guardrails in fields such as 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 the type with a load-bearing width of over 65mm for flat steel and a thickness of over 6mm for flat steel, with crossbars typically made of flat steel or rebar 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 wharfs, and other special demand scenarios.

3. Heavy-duty steel grating classification:

4. Heavy-duty steel grating can be divided into two types according to the production process: heavy-duty press-welded steel grating and heavy-duty press-locked steel grating.

A. Heavy-duty press焊接钢格板 refers to steel grating with reinforcing bars as cross bars, suitable for one-way load-bearing applications.

B. Heavy-duty press-locked steel grating refers to grating with flat steel bars, suitable for bidirectional loading. However, it is significantly more expensive than welded steel grating, and 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 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 plate with a sealed surface. After hot-dip galvanizing, composite steel grating may experience warping and deformation due to heat, especially with larger sizes, which can be difficult to flatten. 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 utilized. 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 primer paint at the weld joints. Use steel grating installation clamps for assembly without damaging the galvanized layer, and it is 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 other fastening methods like bolt connections can be provided upon request. The typical installation gap for steel grating is usually 100mm. Ensure the installation is firm and reliable, and regularly inspect to prevent clamps from loosening or falling off. It is best to weld or add rubber pads to the steel grating near vibration areas.

Platform steel grating

Platform steel grating is a widely applicable steel grating panel product, mainly used for platforms in factories, workshops, mines, and ports. It offers a stylish and impressive appearance, easy installation, and is a new type of building product that replaces the old ones.

Platform specialty products include: steel grating plates.

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

2. Use flat steel strips of different specifications than those used for the grating, or use angle iron, channel steel, square tubes, etc., for the edging.

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 is as follows: Series 1 - weld every five pieces; Series 2 - weld every four pieces; Series 3 - weld every three pieces. The welds are single-sided angular 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 manufacturing methods: one involves combining and welding stainless steel flat bars with stainless steel round bars; the other is the interlocking of stainless steel flat bars. They possess excellent corrosion resistance, a clean appearance, and a highly desirable decorative effect, though 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 depending on the usage environment).

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

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 evenly arranged flat steel bars, welding it into the flat steel using strong electric welding power and hydraulic pressure, resulting in a high-quality grating with strong weld points, excellent stability, and high strength. Handcrafted steel gratings are first punched with holes on the flat steel, then the crossbars are inserted into the holes and spot-welded. There is a gap between the crossbars and the flat steel, but each contact point is焊接, achieving a melting connection equivalent to that of flat steel and twisted steel, 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. The finished product is heat-treated and polished, followed by electrochemical polishing, then chrome-plated, achieving 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 is 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 highly required. The selection of stainless steel grating is the same as that of carbon steel grating. Due to its special properties, stainless steel grating is extensively applied in various factories both domestically and internationally.

Stainless Steel Grating Cover Plates

Stainless steel grating covers, also known as stair tread plates, steel stair tread plates, or stair treads, are a type of stairboard used for platforms. They come in two installation methods: welding and bolt connections. Welded tread plates can be directly welded to the stair beams.

Overview

Welded fixed tread plates, directly welded to the ladder beam; no need for side plates on the sides of the tread plates, more economical but not easily removable. Tread plates secured with bolts require thicker side plates, with holes pre-drilled on the side plates for direct bolt installation, allowing for reuse and recycling. Customers can customize according to their specific needs, using suitable types of steel grating to create various sizes to match the corresponding staircase.

Features and 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 construction, and durability of the step board

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

Tread plates find extensive use across various applications. They are commonly employed in power plants, water treatment facilities, and factories, as well as on platforms and walkways in municipal projects, environmental sanitation projects, and in large venues such as cinemas, visitor platforms, and parking areas.

Grating panels

Grates 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 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 welding and handcrafted. Machine welding employs a high-pressure resistance welding machine, where a robotic arm automatically places the crossbars across evenly spaced flat steel bars. The strong welding power and hydraulic pressure then press 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 punched 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 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 sturdy grid pressure-welded structure ensures high load-bearing capacity and a lightweight structure.

2. Easy for hoisting and other features.

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

4. Surface luster is attractive.

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

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

Connector steel grating

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

Category:

Interlocking steel grating types can be categorized into four: Interlocking steel grating classification: Differing by insertion methods and angles, it includes pressed steel grating, heavy-duty steel grating, integral steel grating, and sunshade curtain steel grating, etc.

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 the steel grating is usually less than 2000mm.

2. Heavy-duty grating panels are a type of steel grating product formed by interlocking high-width steel and cross-bar steel under 1200 tons of pressure. They are suitable for high-span and high-load-bearing applications.

3. Integrated Steel Grating Panels - The load-bearing flat bars and cross bars of the integrated steel grating panels have the same height and slot depth, which is half that of the load-bearing flat bars. The height of the steel grating does not exceed 100mm. The length of the steel grating is typically less than 2000mm.

4. Sunshade Grating Panels: The load-bearing flat steel of sunshade grating panels features 30° or 45° oblique slots, and the slot bars are formed by pressing and locking. We can deliver grating panels with various spacing and specifications to meet different requirements, using materials such as carbon steel, stainless steel, and aluminum. The height of the grating panels is less than 100mm.

Features: Welded steel grating features include sturdy weld points, uniform hole spacing, flat mesh surface, aesthetically pleasing design, practical and lightweight, high strength corrosion resistance, and maintenance-free.

Usage: Widely used in civil and commercial buildings, theaters, subways, urban rail projects, and other municipal engineering fields. Suitable for ceiling installation, indoor and outdoor decoration, platform walkways, ventilation windows (wells), billboards, various covers, etc. The interlocking grating panels feature firm 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, more than a hundred varieties have been developed, and sixteen exported products are particularly favored by customers.