Press-Locked Grating

Beschrijving

Drukvergrendeld rooster is manufactured by inserting pre-punched bearing and cross bars into an interlocking configuration, then deforming the cross bars under intense hydraulic pressure. This method creates a smooth, rigid panel with exceptional load-bearing capacity and no visible welds. Available in galvanized carbon steel, stainless steel, and aluminum, it offers excellent corrosion resistance and a clean aesthetic. Ideal for architectural applications, pedestrian walkways, stair treads, and decorative screens, press-locked grating combines structural integrity with visual appeal, providing durable, low-maintenance solutions for both industrial and design-focused projects.

Classification of Press-Locked Grating

Materials: low carbon steel and stainless steel.
Surface treatment: galvanized, painted or powder coated.
Surface type: smooth surface and serrated surface

>Serrated surface type:
PR/S1: Trapezoidal teeth on the bearing bar.
PR/S2: Trapezoidal tooth both on the bearing bar and cross bar with the highest non-slip performance. In this three types. it is most popular.
PR/S3: The non-slip tooth is applied to the connect components. It has the lowest non-slip performance.

A smooth surface press-locked steel grating.

PR-S1 surface.

PR-S2 surface.

PR-S3 surface.

Types of press-locked steel grating by insertion angles and insertion modes:

Common steel grating.

Integral steel grating.

Heavy duty steel grating.

Louver steel grating.

Common type:

After the grooving of bearing bar, the cross bar press locked and molded.
Maximum machining height of common steel grating is 100 mm, the length of steel grating is less than 2000 mm.
The standard height of bearing bar: 20 mm to 170 mm.
The standard thickness of bearing bar: 2 mm, 3 mm, 4 mm, 5 mm.

Table 1: Common Mesh Spacing for Bearing Bars from 2 to 3 mm of Common Press-Locked Steel Grating
Bearing Bar mm	Cross Bar mm
11.1	11.1	16.65		22.2	33.3	44.4	49.95	66.6	99.9
15	11.1	16.65		22.2	33.3	44.4	49.95	66.6	99.9
21	11.1	16.65	21.0	22.2	33.3	44.4	49.95	66.6	99.9
22.2	11.1	16.65	21.0	22.2	33.3	44.4	49.95	66.6	99.9
33.3	11.1	16.65	21.0	22.2	33.3	44.4	49.95	66.6	99.9
44.4	11.1	16.65	21.0	22.2	33.3	44.4	49.95	66.6	99.9
55.5	11.1	16.65	21.0	22.2	33.3	44.4	49.95	66.6	99.9
66.6	11.1	16.65	21.0	22.2	33.3	44.4	49.95	66.6	99.9
99.9	11.1	16.65	21.0	22.2	33.3	44.4	49.95	66.6	99.9

Table 2: Common Mesh Spacing for Bearing Bars from 4 to 5 mm of Common Press-Locked Steel Grating
Bearing Bar mm	Cross Bar mm
21	16.65	22.2	33.3	44.4	49.95	66.6	99.9
25	16.65	22.2	33.3	44.4	49.95	66.6	99.9
33.3	16.65	22.2	33.3	44.4	49.95	66.6	99.9
50	16.65	22.2	33.3	44.4	49.95	66.6	99.9
66.6	16.65	22.2	33.3	44.4	49.95	66.6	99.9
99.9	16.65	22.2	33.3	44.4	49.95	66.6	99.9

Integral type

The bearing bar of integral steel grating has the same height as cross bar. The grooving depth is 1/2 of bearing bar.
The height of the steel grating is less than 100 mm. and the length usually less than 2000 mm.
The standard height of bearing bar: 20 mm to 100 mm.
The standard thickness of bearing bar: 2 mm, 3 mm, 5 mm.

Table 3: Common Mesh Spacing for Bearing Bars from 2 to 3 mm of Integral Press-Locked Steel Grating
Bearing Bar mm	Cross Bar mm
22.2	16.65	22.2		44.4	66.6
33.3	16.65	22.2	33.3		66.6
44.4	16.65	22.2		44.4
66.6	16.65	22.2	33.3		66.6

Table 4: Common Mesh Spacing for Bearing Bars from 5 mm of Integral Press-Locked Steel Grating
Bearing Bar mm	Cross Bar mm
33.3	16.65	33.3	66.6	99.9
66.6	16.65	33.3	66.6
99.9	16.65	33.3		99.9

Heavy duty steel grating

Heavy duty steel grating is bit by bearing bar and cross bar in the 1200 tons of pressure under the molding. It is suitable for high load bearing occasions.
The standard height of bearing bar: 80 mm to 200 mm.
The standard thickness of bearing bar: 8 mm, 10 mm, 12 mm.

Table 5: Common Mesh Spacing of Heavy Duty Steel Grating
Bearing Bar mm	Cross Bar mm
25	50	75	100
50	50	75	100
75	50	75	100
100	50	75	100

Louver steel grating

The bearing bar of louver steel grating open the chute with 30° or 45°. The cross bar grooved and press locked.
The grating height is less than 100 mm.
The standard height of bearing bar: 30 mm to 100 mm.
The standard thickness of bearing bar: 2 mm, 3 mm.

Table 6: Common Mesh Spacing of Louver Steel Grating
Bearing Bar mm	Cross Bar mm
33.3	16.65	22.2	33.3	66.6
66.6	16.65	22.2	33.3	66.6
99.9	16.65	22.2	33.3	66.6

Note: According to the different requirements. we can produce the steel grating with other specifications and spacing

Steel Bar Grating Welding & Fastening Clips

Welding creates superior permanent installations, while mechanical fasteners (also known as grating clips) provide solutions when grating must be removable or welding is impractical.

Het aanbevolen laspatroon (rechts afgebeeld) geeft de minimale afstand tussen de bevestigingsmiddelen aan voor voetgangerstoepassingen. Voertuigtoepassingen vereisen doorgaans extra laswerk, waarbij specifieke vereisten voor afmetingen en afstanden worden bepaald door de specificatie-autoriteit van het project.

Zadelklemmen Deze gebogen clips, die twee draagstaven overbruggen, zijn leverbaar in gegalvaniseerd staal, RVS of aluminium. Ze zijn voorzien van standaard 5/16″ boutgaten. Bouten, schroeven of ander verbindingsmateriaal zijn niet inbegrepen en moeten apart worden meegeleverd.	Verzonken landen De smalle tussenruimte van het dichtmazige rooster maakt het verzinken of frezen van de draagstaven mogelijk om de boutschouders op te nemen. Platkopschroeven of zelfborende bevestigingsmiddelen zijn niet inbegrepen en moeten apart worden meegeleverd.	Lasnokken Werknemers lassen deze voorgeperforeerde platen tussen de draagstaven om het vastschroeven aan de ondersteunende structuur te vergemakkelijken. Bouten, schroeven of ander verbindingsmateriaal dienen door de klant apart aangeleverd te worden.
“G”-clips Deze mechanische bevestigingsmiddelen, geïnstalleerd vanaf het bovenoppervlak van het rooster, creëren een wrijvingsverbinding met de ondersteunende flens. “G”-clips kunnen eenvoudig worden geïnstalleerd zonder dat er hoeft te worden geboord of gelast.	“E-11”-clips Deze gevormde clip vangt twee draagstaven op, op een afstand van 11/16″ in het midden. Platte schroeven met verzonken kop en ander benodigd bevestigingsmateriaal moeten door de klant apart worden aangeleverd.	“J”-clips Een smal gevormde clip die wordt gebruikt om een enkele draagstaaf op te vangen in toepassingen met een beperkte tussenruimte, doorgaans 11/16″ in het midden. Dopschroeven en ander noodzakelijk bevestigingsmateriaal zijn niet inbegrepen en moeten apart worden geleverd.

Press-Locked Grating Applications

Walkway
Press-locked grating provides a safe and durable surface for pedestrian walkways, with its smooth, slip-resistant design ensuring comfortable passage. The open grid allows for natural drainage and light penetration, making it ideal for outdoor paths, industrial corridors, and public spaces where safety and low maintenance are priorities.

Driveway
Suitable for light vehicular access areas, press-locked grating offers stability and load-bearing capacity for driveways in commercial or residential settings. Its robust construction withstands vehicle weight while allowing rainwater to drain efficiently, reducing surface water accumulation and minimizing ice formation in colder climates.

Stair Treads
Used as stair treads, press-locked grating delivers reliable anti-slip performance and structural support. The grating can be customized to fit various step dimensions, providing secure footing in industrial, architectural, and public staircases. Its open design also prevents the buildup of debris and water on steps.

Drain Cover
Press-locked grating serves as an effective drain cover, combining high load capacity with excellent water flow. It is commonly used in street gutters, trench drains, and landscape drainage systems, where its durability and corrosion resistance ensure long-term functionality in wet or harsh environments.

Equipment Platform
Ideal for equipment platforms and maintenance access areas, press-locked grating offers a sturdy and stable surface that supports both personnel and light machinery. Its open structure allows for ventilation and cable routing, while the smooth surface facilitates easy cleaning and inspection in industrial or mechanical rooms.

Grating Material Selection: Galvanized Steel VS Aluminium VS Stainless Steel

Property	Stainless Steel	Aluminium	Galvanized Steel
Material Type	Austenitic (304, 316) or Ferritic grades	6000 series (6061, 6063) or 5000 series	Low-carbon steel with zinc coating
Corrosion Resistance	Excellent, especially in chloride environments (316 grade)	Good, forms natural oxide layer	Good, depends on zinc coating thickness & environment
Strength	High tensile strength, maintains performance at high temperatures	Moderate strength, lower than steel	High strength, similar to base carbon steel
Weight	Heavy (~8 g/cm³)	Light (~2.7 g/cm³)	Heavy (~7.85 g/cm³)
Cost	High	Moderate	Low to moderate
Typical Applications	Chemical plants, food processing, marine platforms, high-corrosion areas	Walkways, platforms, marine structures, architectural features	Industrial flooring, trench covers, walkways, general outdoor use
Maintenance	Low, only periodic cleaning required	Low, resistant to oxidation	Moderate, may require recoating if zinc layer degrades
Workability	Difficult to cut/weld, requires specific tools & techniques	Easy to cut, form, and weld	Easy to work with standard steel tools
Surface Options	Mill finish, brushed, polished, patterned	Anodized, powder-coated, mill finish	Hot-dip galvanized, painted, powder-coated
Environmental Resistance	Resists UV, chemicals, saltwater	Resists atmospheric corrosion, not suitable for strong acids/alkalis	Good outdoor durability, zinc protects against rust
Life Expectancy	25+ years (depending on grade and environment)	15–25 years	10–20 years (depending on coating and exposure)
Recyclability	Fully recyclable, high scrap value	100% recyclable, energy-efficient to recycle	Recyclable, zinc coating can be recovered
Installation Notes	Heavy, may require stronger supports	Lightweight, easy to handle and install	Heavier than aluminium, standard steel handling required

Note: Performance may vary based on specific grade, thickness, coating quality, and environmental conditions.

ABX Metal: Your Premier Full-Service Grating Partner

ABX Metal is your trusted, comprehensive grating manufacturer. Whether you require standard stock panels or fully custom fabrication, we meet every demand with precision and reliability. As your dedicated partner, we seamlessly guide your project from initial concept to delivery of fully fabricated, ready-to-install grating systems.

Our team delivers tailored solutions that align perfectly with your project’s specifications. The Sales, Engineering, Drafting, and Fabrication departments work in close collaboration with you to bring your vision to life. From preliminary structural layouts to detailed grating plans, we utilize advanced computer-aided design (CAD) and 3D modeling software to ensure accuracy, efficiency, and clarity throughout every phase.

As both manufacturer and fabricator, we offer integrated “One Source” solutions for all grating needs. Our culture of continuous improvement drives us to optimize processes, enhance quality, and maximize value at every stage.

Your complete satisfaction is our foremost commitment. We strive to deliver exceptional products and responsive service from project inception through completion.

Fabrication Capabilities Include:

Designing circular layouts and radial platforms
Precision cutting to specified dimensions
Creating custom cutouts for panel penetrations
Welding banding, kick plates, or safety nosings
Fabricating stair treads and specialized access systems
Incorporating custom features such as checker plate, lifting handles, and hinges

With ABX Metal, you gain a partner dedicated to quality, innovation, and seamless execution—ensuring your grating solutions are built to perform and designed to last.