Overview
Expanded metal mesh is a sheet metal product that has been slit and stretched to form a regular pattern of diamond-shaped openings. This manufacturing process creates a rigid, strong material from a single piece of metal without any waste, making it both economical and environmentally friendly. The mesh maintains the strength of the original metal sheet while significantly reducing weight. Its open structure allows for excellent airflow, light transmission, and drainage, making it suitable for numerous industrial and architectural applications. The diamond pattern also provides good traction, enhancing safety in walkway applications.
Structure and Working Principle
The mesh is created by making parallel slits in a metal sheet and then stretching it perpendicular to these slits. This expansion transforms the slits into diamond-shaped openings surrounded by interconnected strands of metal. The strands form angles of approximately 60-70 degrees relative to the original sheet plane. The resulting structure distributes loads efficiently across the entire mesh. The thickness of the original sheet determines the strand thickness (SWG), while the expansion process controls the opening size (LWD - long way of diamond) and strand width (SWD - short way of diamond). These parameters can be precisely controlled to meet specific performance requirements.
Key Features
Expanded metal mesh offers several distinctive advantages. Its manufacturing process creates a product that is stronger than perforated metal of equivalent weight, as it maintains continuous metal strands throughout the structure. The open area percentage typically ranges from 40% to 60%, providing excellent ventilation and visibility. The mesh is naturally slip-resistant due to its raised diamond pattern, making it ideal for flooring applications. It's also remarkably versatile - available in various metals (including galvanized steel, aluminum, and stainless steel) with different strand thicknesses and opening sizes to suit diverse applications from heavy industrial uses to delicate decorative work.
Application Areas
In construction, expanded metal mesh serves as lath for stucco and plaster (the original 'dou hui qian wang' application), reinforcing material for concrete, and architectural cladding. Industrial applications include machine guards, safety barriers, filtration screens, and conveyor belts. Infrastructure projects utilize it for bridge decking, drainage grates, and security fencing. The agriculture sector employs it for animal enclosures and ventilation panels. Its decorative potential is increasingly recognized in interior design for ceiling panels, room dividers, and artistic installations where both aesthetics and functionality are important.
Maintenance and Precautions
Maintenance requirements depend on the material used. Galvanized steel mesh typically requires minimal maintenance in most environments, while untreated steel may need periodic painting. Aluminum and stainless steel versions are naturally corrosion-resistant but should be checked for salt buildup in marine environments. During installation, edges should be properly finished to prevent injuries - either by folding back the strands or adding edge trim. For load-bearing applications, ensure proper support spacing based on the mesh specifications. In food processing or pharmaceutical applications, select materials and opening sizes that meet hygiene and cleaning requirements.
B2B Procurement Guide
When sourcing expanded metal mesh, specify material type, strand thickness (SWG), opening dimensions (LWD × SWD), and sheet size. Consider whether you need standard flattened mesh (smooth surface) or raised mesh (better traction). For outdoor use, request corrosion-resistant materials or coatings. Lead times vary by manufacturer; standard patterns may be available from stock while custom configurations require production time. Quality suppliers should provide material certifications and test reports. For large projects, request samples to verify specifications before full production. Consider freight costs - the mesh's open structure means volume rather than weight often determines shipping costs.
Related Manufacturers
- 主营：楼房外墙、保温镀锌、墙面加固、钢丝网、抹墙网、防锈网、墙挂网、镀锌网、防鼠网、挂灰网、保温网、铁丝网、焊接网、挡窗网、护栏网、地暖网片、建筑挂灰、水泥挂网、镀锌丝网、电焊网片、吊顶电焊网、养鸡圈地网、养殖电焊网、建筑电焊网、阳台隔离
- 主营：内外墙、圈玉米、钢结构、挡浆网、抹墙网、砂浆网、镀锌网、铁纱网、围栏网、兜灰网、排焊网、护栏网、抹灰网、保混网、网还加、保温网、过滤网、焊接网、烟道网、钢丝网、沙浆网、网防裂、铁丝网、镀锌电焊网、热镀锌
- 主营：边坡防护网、被动防护网、主动防护网、边坡主动防护网、边坡被动防护网、边坡防护网厂家
- 主营：养护室、养护设备、混凝土养护室、镀锌电焊网、镀锌收口网、集装箱养护室、移动养护室、恒温恒湿养护室、工程洗车机、成品洗车槽、止水螺杆、圆形钢板、钢筋套筒、水泥支撑、止水钢板、穿墙螺杆、桩芯钢板、水泥垫块、钢筋马凳、混凝土标养室、可移动标养室、混凝土试块标养室、工地标养室、水泥标养室、集装箱标养室
- 主营：镀锌钢格板、玻璃钢格栅、钢笆片、边坡防护网、石笼网、护栏网、锌钢护栏、钢格板、钢格栅
- 主营：防辐射铅门、防辐射铅板、铅箱、铅玻璃、铅门、铅块、铅件、铅丝、铅板、核医学专业防护、核医学通风橱
- 主营：声屏障、钢格板、镀锌丝、刀片刺网、不锈钢网、护栏网、建筑网片、金刚网、遮阳网、金属网、钢板网、护角网、六角网、电焊网、冲孔网、不锈钢过滤网、冲孔板、基坑护栏、草坪护栏、防滑板、传送带、玻璃钢格栅、分样筛、仓储笼、扁丝
- 主营：冷拔丝、人造草坪、捆扎铁丝、荷兰网、方格网、钢筋网片、编织砂浆网、建筑砂浆网、养殖铁丝网、镀锌钢丝网、加固铁丝网、隔离铁丝网、镀锌铁丝网、护栏围栏网、硬塑铁丝网、铁路防护网、浸塑围栏、仿篱笆围栏、低碳钢线材、围墙铁栅栏、热镀锌铁丝、仿真绿草坪、足球场地毯、仿竹子围栏、园林草坪护栏
- 主营：护栏、钢格板、钢格栅、不锈钢网、过滤网、筛网、冲孔网、网片、盖土网、冲孔板、围栏、洞洞板
- 主营：运动场围栏、镀锌钢格栅板、楼梯踏步板、围栏网、防护网、球场围网、沟盖板、锌钢围栏、不锈钢格栅板、钢格板
- 主营：刺绳机、排焊机、制钉机、养殖网焊网机、护栏网排焊机、勾花网机、钢筋网焊网机、全自动建筑网机、菱形网机、金属丝编织焊网机、草原网机、牛栏网机、石笼网机、煤矿支护网机、钢板网机、拔丝机、轧花编织焊接机
- 主营：球场围网、护栏网、边坡防护网、钢格板、钢格栅板、锌钢护栏
- 主营：围栏、护栏、波形护栏、防尘网、边坡防护网、石笼网、隔离网、声屏障、钢格板、市政护栏
- 主营：公路仪器、试验检测仪器、搅拌机、铅垂仪、土工布检测仪器、混凝土检测、压力试验机、土工仪器、建筑仪器、电动击实仪、沥青车辙试验仪、土壤检测分析仪、混合料拌和机、粗粒土相对密度仪、检测仪、击实仪、水泥检测分析仪、沥青检测分析仪、各种夹具、应变式直剪仪、耐磨试验机、导热系数测定仪、管材静液压试验机、粗粒土检测仪器、混凝土检测仪、陶瓷砖检测仪器
- 主营：轧花网、钢板网、网格布、电焊网、砂浆网、荷兰网、护栏网、建筑网片、保温钉、基坑护栏
- 主营：农用防虫网、遮阳网、铁丝网
- 主营：临边基坑护栏、锌钢护栏、市政护栏、钢筋网片、球场护栏、道路护栏、双边丝护栏、框架护栏、钢筋加工棚、配电箱防护栏杆、塔机护栏