China Prison Mesh 358 Security Fence
The Prison Mesh 358 system is a welded steel barrier characterized by a 3 mm wire diameter, 76.2 mm × 12.7 mm rectangular aperture, and a continuous panel height of up to 3 meters. Its geometry
Request a QuoteChina Prison Mesh 358 Security Fence
The Prison Mesh 358 system is a welded steel barrier characterized by a 3 mm wire diameter, 76.2 mm × 12.7 mm rectangular aperture, and a continuous panel height of up to 3 meters. Its geometry prevents hand‑holds and footholds, making it suitable for high‑security perimeters where detainee containment is critical.
Technical Specifications
| Parameter | Typical Value |
|---|---|
| Wire diameter | 3.0 mm (±0.1 mm) |
| Mesh opening (rectangular) | 76.2 mm × 12.7 mm |
| Panel height (standard) | 2.4 m – 3.0 m (customizable) |
| Panel width (standard) | 2.5 m (customizable) |
| Tensile strength of wire | ≥550 MPa |
| Coating | Hot‑dip galvanized (Zn ≥ 55 g/m²) optional PVC over‑coat (thickness 0. mm) |
| Corrosion resistance (neutral salt spray) | ≥1000 h (galvanized) |
Materials and Construction
The core wire is low‑carbon steel (grade Q195) drawn to a precise 3 mm diameter before being welded at each intersection. After welding, the mesh undergoes hot‑dip galvanization to achieve a uniform zinc coating that meets ISO 1461. For environments with higher chemical exposure, a PVC over‑coat of 0. mm–0. mm can be applied, providing an additional barrier against corrosion while maintaining the mesh’s mechanical properties.
Design Features
The following features distinguish the 358 mesh from conventional chain‑link or welded mesh barriers:
- Anti‑climb geometry: the narrow 12.7 mm vertical opening prevents finger and toe holds.
- Anti‑cut resistance: welded joints eliminate weak points that could be severed with hand tools.
- High tensile strength: the wire’s ≥550 MPa rating resists deformation under impact loads.
- Low maintenance: galvanized/PVC coating reduces rust formation, extending service life beyond 20 years in typical outdoor conditions.
- Modular panels: standard widths allow rapid installation and easy replacement of damaged sections.
Applications
Prison and detention facilities require a perimeter that delays climbing, cutting, and tunneling attempts while remaining visible for surveillance. The 358 mesh’s small rectangular opening eliminates footholds, and its welded construction resists manual cutting tools commonly used in contraband smuggling. Because the mesh is transparent, CCTV cameras and guard towers maintain clear sight lines, which is essential for monitoring large outdoor yards. These characteristics make the Prison Mesh 358 a preferred choice for correctional institutions, military bases, and high‑value storage sites where both security and visibility are required.
Quality Control
Each production batch undergoes tensile testing on random wire samples to verify the ≥550 MPa specification. Galvanized coating thickness is measured with a magnetic induction gauge, targeting a minimum of 55 g/m² zinc. Visual inspection checks weld uniformity and panel flatness, while adhesive‑bonded PVC over‑coats are assessed for holiday detection using a spark tester. Documentation of these tests is provided with every shipment upon request.
Customization Options
While the standard panel height ranges from 2.4 m to 3.0 m, the manufacturer can adjust the height in 0.1 m increments to match site‑specific fence layouts. Panel width is typically 2.5 m but can be reduced to 1.2 m for gate sections or increased to 3.0 m for long straight runs. Coating choices include hot‑dip galvanizing only, galvanized plus PVC, or powder‑coated finishes in RAL colors such as 7016 (anthracite grey) or 9005 (jet black). Custom apertures (e.g., 50 mm × 12.7 mm) are available for projects requiring even tighter anti‑climb performance.
Installation Guide
Panels are delivered with pre‑drilled mounting holes compatible with standard C‑channel or steel post systems. Installation typically involves setting posts in concrete footings spaced at the panel width, then bolting or welding the mesh to the posts using corrosion‑resistant fasteners. For temporary deployments, a modular clamping system allows panels to be secured without ground penetration. Detailed installation drawings are supplied with each order.
Packaging and Shipping
Finished panels are stacked on pallets, protected with corner guards, and wrapped in stretch film to prevent surface abrasion during transit. Each pallet is labeled with product code, dimensions, coating type, and batch number. For overseas shipments, panels are placed in ISPM‑15 compliant wooden crates or steel frames, and moisture‑absorbing desiccants are included to mitigate condensation. Standard lead time is 4–6 weeks after receipt of confirmed purchase order, depending on coating selection and order volume.
Frequently Asked Questions
Common questions from engineers and procurement managers are answered below:
- Can the mesh height be customized?
- Yes, panel height can be adjusted in 0.1 m increments from 2.0 m up to 4.0 m to meet specific site requirements.
- What coating options are available?
- Standard is hot‑dip galvanized (Zn ≥ 55 g/m²). Optional PVC over‑coat (0. mm–0. mm) or powder‑coat in RAL colors can be applied.
- How is the tensile strength verified?
- Wire samples are tested according to ISO 6892‑1; results are documented in the material test report accompanying each shipment.
- What is the typical lead time for an order?
- Lead time ranges from 4 to 6 weeks after purchase order confirmation, varying with coating choice and order size.
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To discuss your project’s specifications, request a detailed quotation, or arrange a sample panel, please contact our technical sales team.
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