Perforated Plate

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Specification Parameter

Based on industrial perforated plate standards and screening industry requirements:
Material: Carbon steel, stainless steel, or alloy steel to meet corrosion resistance and wear resistance requirements.
Plate Thickness: Typically up to about 12.5 mm for industrial screening plates
Hole Size Range: Approx. 0.8 mm – 10 mm or larger depending on application
Hole Types: Round, square, rectangular, slotted, hexagonal
Plate Form: Flat plate or rolled sheet
Surface Treatment: Galvanized, coated, painted, or raw steel
Material Options: Carbon steel, stainless steel, alloy steel
Manufacturing Standard: ISO-based hole tolerance and pitch control

Industrial perforated plates are designed so plate thickness is normally lower than hole diameter to maintain strength and screening efficiency.
Perforated metal screens can be manufactured with multiple hole patterns and surface coatings, supporting customized design for different industries.

Key Features and Functions

Perforated plate screen is a kind of screen that forms uniform holes on metal plates by mechanical stamping process.
It is usually made of stainless steel, carbon steel, aluminum and other high-strength materials, with good wear resistance and corrosion resistance.
The mesh of perforated plate screen has uniform precision and is not easily deformed, which is suitable for screening large particles.
Perforated plate screen mesh has various hole shapes, such as rectangular, square, diamond, round, hexagonal, oblong, irregular, etc., which can meet different screening needs.
Perforated screen mesh is not only used in the mining industry, but can also be used in a variety of industries for screening, filtration, protection, decoration, and so on.

Material Selection and Feature

Material	Suitable Application	Feature Highlights
High-carbon steel	Limestone, coal screening	High cost performance, strong impact resistance
Manganese steel	Heavy-duty pre-crushing screening	Self-hardening; becomes tougher with wear
Stainless steel 304/316	Salt mines, slurries, corrosive environments	Acid & alkali resistant, 3× longer service life
Polyurethane (PU)	Fine particle sizing (<3 mm)	40 % noise reduction, anti-adhesion

Core Advantages

Wear-resistant and impact-resistant

It uses NM400/NM500 grade high-strength wear-resistant steel (thickness 8-30mm) with a hardness of HB400-500. Its service life is more than 3 times that of ordinary sieve plates , and the annual maintenance cost is reduced by about 40% .

Precision screening control

Laser/CNC precision drilling, aperture tolerance ±0.1mm, supports customized apertures from φ5-100mm, ensuring accurate grading of ore /coal/aggregate particle size, and improving mineral processing efficiency by more than 25%.

Super strong carrying capacity

The tensile strength is ≥1200MPa, the dynamic bearing load is up to 5 tons/㎡, it can withstand high-frequency vibration and ore impact, and prevent deformation and cracking.

Flexible customization

Support non-standard size and special-shaped hole design

Application Scenarios

Ore initial screening: the first screening in the mine to remove large-sized waste rock

Concentrate classification: copper/iron/gold ore is separated precisely by particle size

Coal washing plant: coal dehydration and desludging process

Aggregate processing: sand and gravel classification (0-100mm particle size control)

Recycled resources: construction waste, metal scrap sorting