Irregular Round Hole Perforated Metal Sheet

Round Hole Perforated Metal Sheets

Q: What’s the smallest and largest hole diameter available for round-hole perforated metal sheets?

We can produce holes ranging from φ0.2 mm up to φ300 mm in round-hole perforated metal sheets, depending on sheet thickness and size.

Q: How is the open area calculated for round-hole perforated sheets?

Open area is calculated based on hole size and pitch. We can provide detailed calculations and sample sheets for verification.

Q: Can round-hole perforated metal sheets be weatherproof?

Yes, round-hole perforated metal sheets can be made weatherproof using hot-dip galvanizing, powder coating, anodizing, or by selecting 316 stainless steel.

Q: Do you supply test reports for round-hole perforated sheets?

Yes, we provide Material Test Certificates (MTC) and inspection reports. Third-party testing is also supported upon request.

Q: What’s the minimum order quantity (MOQ) for round-hole perforated metal sheets?

Small-batch orders are accepted. The MOQ depends on the material type and fabrication process.

Q: What is the lead time for round-hole perforated metal sheets?

Sample orders typically ship within 3–7 days. Mass production lead time is confirmed per order requirements.

Q: How do you ensure hole accuracy in round-hole perforated metal sheets?

Hole tolerance is ±0.05–0.2 mm using CNC punching and anti-deformation fixtures to maintain precision.

Q: Are there installation tips for round-hole perforated metal sheets?

Yes. Reserve mounting holes, avoid surface damage, and use stainless steel screws or concealed fasteners for best results.

其他信息

Sheet length	≤6000mm, customizable production (Thickness <0.8mm can be delivered in coils, length customizable)
Sheet width	≤1500mm, customizable production
Sheet thickness	0.2mm-30mm
Hole types	Round holes,Common arrangement patterns include: 60° staggered array (the most prevalent type), 90° straight array, 45° diagonal array, and irregular array.
Hole size	0.2mm–300mm (Note: Hole diameter must be ≥ sheet thickness)

Please email us with your required specifications based on the above parameters. We will provide customized quotes and manufacturing according to your requirements.

E-mail： info@perfsheet.com

Our round hole perforated metal sheet are widely used in decoration, filtration, acoustics, ventilation, and machinery protection. All specifications can be customized according to your requirements.

Typical specifications (customizable):

Plate length: up to 6000 mm (longer available by splicing), Products with a sheet thickness less than 0.8mm can be supplied in coiled form; the standard length is 20 meters per coil, but other lengths can be customized according to requirements.
Plate width: up to 1500 mm
Plate thickness: 0.2 mm — 30 mm (common: 1.0 / 1.2 / 2.0 / 3.0 /4.0 /5.0 mm)
Materials: Stainless steel (201/304/316), galvanized steel, Galvalume, aluminum alloys, cold-rolled or hot-rolled steel, copper, etc.
Hole type: Round holes (single row, staggered, or multi-diameter layouts)
Hole diameter: φ0.8 mm — φ50 mm (precision punching available for smaller sizes)
Pitch: customizable — Products can be customized as long as the edge-to-edge distance between holes exceeds the sheet thickness.
Open area: 5% — 60% depending on hole size and pitch
Surface finish: Polished, brushed, sandblasted, powder coated, wet paint, hot-dip galvanized, electroplated, anodized, etc.

Why round-hole perforated metal sheets stand out from other patterns:

Strength and durability: Circular holes reduce stress concentration, improving fatigue resistance.
Efficient manufacturing: Punching and CNC processing of round holes is cost-effective and highly repeatable.
Predictable airflow and acoustics: Open area calculations are straightforward, making design optimization easier.
Aesthetic versatility: Round holes deliver a clean, balanced look that fits both industrial and architectural design.
Easy cleaning: Less dust accumulation compared to slotted or irregular holes, making sheets ideal for hygienic industries.

Round Hole Perforated Metal Sheets Pattern Display

Customer Pain Points & Our Solutions

Pain points:

Difficulty sourcing exact hole size, pitch, or material.
Standard perforated metal sheets don’t meet special open area or thickness requirements.
Lack of factories providing perforation plus bending, welding, and finishing in one place.
Long lead times or no quality documentation.
Concerns over deformation, burrs, or scratches.

Solutions:

Fully customized round-hole perforated metal sheets: tight tolerance hole control (±0.1 mm available).
One-stop service: cutting, perforation, bending, rolling, welding, finishing — all under one roof.
Sample verification: samples or pilot runs available before mass production, with inspection reports.
Quality assurance: deburring, anti-deformation fixtures, and flatness control.
Technical support: engineering team reviews drawings and recommends cost-effective solutions.

Round Hole Perforated Metal Sheets

Custom Fabrication Capabilities

We specialize in fabricating round-hole perforated metal sheets with advanced equipment and secondary processing:

Punching / Stamping — CNC and high-volume punching
Laser cutting — complex outlines, oversized holes, precision details
CNC bending — V-bends, box folds, freeform shaping
Rolling / cylindrical forming — for tubes and curved façade panels
Welding & assembly — spot welding, TIG, MIG, structural assembly
Surface finishing — polishing, brushing, powder coating, anodizing, galvanizing, plating
Cleaning & protection — passivation, anti-rust treatments, secure packaging

Round Hole Perforated Metal Sheets

Production Workflow

Requirement submission — customer provides drawing, sample, or sheet specification.
Engineering review — manufacturability, hole arrangement, open area calculation.
Sample production (optional) — prototypes made for confirmation.
Order confirmation — contract signed, delivery & quality terms set.
Material inspection — raw material certified and tested.
Fabrication — cutting → perforating → bending/rolling/welding → finishing.
Quality checks — hole size, pitch, flatness, surface quality.
Packaging & shipment — export-standard packaging with test report.
After-sales — installation guidance and warranty support.

Round Hole Perforated Metal Sheets

Applications of Round-Hole Perforated Metal Sheets

Architecture & façades: exterior cladding, sunshades, curtain walls.
Interior design: ceilings, acoustic walls, decorative partitions.
Machinery & safety: guards, enclosures, motor covers.
Filtration: ventilation grilles, filter housings, sieves.
Transportation & infrastructure: bridge panels, smoke exhaust panels.
Furniture & design: speaker grilles, storage cabinets, outdoor furniture.
Food & medical equipment: stainless steel sheets resistant to corrosion and easy to clean.

Exterior Wall Round Hole Perforated Metal Sheets

Why Choose Our Round-Hole Perforated Metal Sheets

Direct factory pricing — competitive without middlemen.
Integrated production — one-stop processing ensures quality and speed.
Customization expertise — years of experience with engineered projects.
Traceable QC — material certificates, test reports, third-party inspection available.
Fast samples — short lead time for prototypes.
Flexible delivery — small orders and bulk shipments supported.
After-sales support — technical guidance and warranty coverage.

Call to Action

Looking for a round-hole perforated metal sheet supplier?

Email: info@perfsheet.com

Or request a quote online: send us your required material, thickness, hole size, and quantity.

Special offer: First-time customers can request discounted samples or free process consultation.

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We have inventory of 60° round hole perforated metal sheets in many specifications, and can generally ship within three days. Standard sizes are 1000mm*2000mm and 1250mm*2500mm. Please refer to the figure below for specific hole array arrangements:

Round Hole Perforated Metal Sheet specification schematic diagram

Round hole 60° arrangement perforated metal sheet inventory list
Round hole diameter	Hole center distance	Open area ratio	Plate thickness (±0.1mm)
Round hole diameter	Hole center distance	Open area ratio	0.3	0.4	0.5	0.6	0.8	1.0	1.2	1.5	2.0	2.5	3.0	4.0	5.0	6.0	8.0	10.0	12.0	15.0
0.4	1.4	7.4%
0.5	1.0	22.67%
0.5	1.5	10.08%
0.6	1.2	22.67%
0.6	1.6	12.75%
0.7	1.4	22.67%
0.8	1.6	22.67%
0.8	1.8	17.91%
0.8	2.0	14.51%
0.9	1.9	20.35%
1.0	2.0	22.67%
1.5	3.0	22.67%
2.0	3.0	40.31%
2.0	4.0	22.67%
2.5	5.0	22.67%
3.0	5.0	32.65%
3.0	6.0	22.67%
4.0	6.0	40.31%
5.0	8.0	35.43%
6.0	9.0	40.31%
8.0	11.0	47.97%
8.0	12.0	40.31%
10.0	13.0	53.66%
10.0	14.0	46.27%
10.0	15.0	40.31%
15.0	20.0	50.01%
15.0	30.0	40.31%
20.0	30.0	40.31%
20.0	40.0	22.67%
25.0	50.0	22.67%
30.0	40.0	51.01%
30.0	50.0	32.65%

Q1: What’s the smallest and largest hole diameter available for round-hole perforated metal sheets?
A1: We can produce holes ranging from φ0.2 mm up to φ300 mm in round-hole perforated metal sheets, depending on sheet thickness and size.

Q2: How is the open area calculated for round-hole perforated sheets?
A2: Open area is calculated based on hole size and pitch. We can provide detailed calculations and sample sheets for verification.

Q3: Can round-hole perforated metal sheets be weatherproof?
A3: Yes, round-hole perforated metal sheets can be made weatherproof using hot-dip galvanizing, powder coating, anodizing, or by selecting 316 stainless steel.

Q4: Do you supply test reports for round-hole perforated sheets?
A4: Yes, we provide Material Test Certificates (MTC) and inspection reports. Third-party testing is also supported upon request.

Q5: What’s the minimum order quantity (MOQ) for round-hole perforated metal sheets?
A5: Small-batch orders are accepted. The MOQ depends on the material type and fabrication process.

Q6: What is the lead time for round-hole perforated metal sheets?
A6: Sample orders typically ship within 3–7 days. Mass production lead time is confirmed per order requirements.

Q7: How do you ensure hole accuracy in round-hole perforated metal sheets?
A7: Hole tolerance is ±0.05–0.2 mm using CNC punching and anti-deformation fixtures to maintain precision.

Q8: Are there installation tips for round-hole perforated metal sheets?
A8: Yes. Reserve mounting holes, avoid surface damage, and use stainless steel screws or concealed fasteners for best results.

After perforation, especially for plates with very dense hole patterns, the perforated metal sheets will experience significant deformation. We perform flattening treatment after completing all perforation processes. Below is the video of flattening perforated metal sheets:

After the leveling process, our perforated metal sheets can be precisely laser-cut into any custom shape as required. Below is a production video demonstrating the laser-cutting process: