Micro Expanded Metal

Micro Expanded Metal

Micro expanded metal features a network of small openings, creating a lightweight material with a high surface area-to-weight ratio. It is ideal for applications requiring strength, stability, and precision, such as industrial filters and mesh electrodes. This micromesh retains all benefits of standard expanded metal while offering exceptional accuracy for scientific and high-tech uses.

We continuously develop smaller, more intricate patterns to meet precise industrial requirements, achieving an SWD as fine as 0.2 mm.

Lightweight and easy to handle
Cost-effective solution
Exceptional durability and long life
Formable into various shapes and sizes

Materials	Titanium, Mild Steel, Nickel, Stainless Steel, Copper, Aluminium
Hole Patterns	Diamond, Ribbon, Circle, Squares, Custom Fabricated
Coating(optional）	Platinum(Pt), Ruthenium Oxide (RuO2), Iridium Oxide (IrO2), Ru-Ir

Details about Micro Expanded Metal

Product Details

Size & Application

How to order

Video

Product Details

Micro Expanded Metal Foils ⚡

Micro expanded metal foils are thin, lightweight sheets with precise diamond-shaped openings, widely used in wind turbine lightning protection, filtration, heat exchange, and electrical applications. They offer excellent conductivity, strength, and dimensional accuracy. 🔌🔥

Key Advantages 🌟

High mechanical strength – anti-ravel & flexible for easy installation
Cost-effective alternative to perforated metal 💰
Customizable to precise requirements – SWD up to 0.2 mm
Long-lasting durability ⏳
Single-piece construction prevents unraveling
Versatile for wind turbines, filtration, and industrial applications ⚡💨

Applications 🔧

Wind Turbine Lightning Strike Protection 🌪️⚡
Fine Filtration in chemical & petrochemical industries 🔬
Heat Exchange and Thermal Conductive Components 🔥
Electrochemical & Battery Applications 🔋
Aerospace & Automotive Industry Components ✈️🚗

Production Process 🏭

Process Animation

Specifications Table – Wind Turbine, Lightning Protection & Filtration 🛠️

Application	Material	SWD (mm)	Strand Thickness (mm)	Mesh Weight (g/m²)	Sheet Size (mm)	Notes
Wind Turbine Lightning Protection	Copper / SS304	0.2 – 0.5	0.1 – 0.5	195 – 420	1000 × 2000	Single/double layers, high conductivity ⚡
Filtration – Chemical & Petrochemical	SS316 / Nickel	0.2 – 0.5	0.05 – 0.3	50 – 200	500 × 1000	Corrosion-resistant, uniform diamond openings 🔬💨
Heat Exchange / Thermal	Copper / Aluminum	0.2 – 0.6	0.05 – 0.4	80 – 300	500 × 1200	High conductivity & thermal transfer 🔥
Electrochemical & Battery	Copper / Titanium	0.2 – 0.5	0.05 – 0.4	70 – 250	500 × 1000	Controlled open area for optimal current ⚡🔋

Terminology 📖

Click to Expand Micro Expanded Metal Terms 📝

Bond: Solid intersection of two strands.
Camber: Bow of a side or edge from end to end.
Diamonds: Open area of metal after expansion. Can be diamond, hexagonal, square, louvered, asymmetric.
Edge Configuration: Closed diamonds (bonded) or open diamonds (random) produced by shearing.
Expanded Metal: Rigid sheet slit and stretched to create diamond pattern.
Flattened: Expanded metal cold-rolled after expansion.
Flattening: Process of producing flattened expanded metal.
Grating: Produced from heavier sheet.
Levelness: Sheets free from waves/buckles beyond 1.5 in.
LWD / LWO: Long Way of Diamond / Opening.
SWD / SWO: Short Way of Diamond / Opening.
Shearing: Cutting sheet to size or tolerance.
Squareness: Dimensional variance if side/edge out of square.
Strand Thickness & Width: Adjusted to create specific mesh patterns.
Taper: Sheet edges deviating from parallel.

Available Materials⚙️

FAQ & Technical Selection Guide ❓🛠️

What is the difference between micro and standard expanded metal?

Micro expanded metal has smaller openings (SWD down to 0.2 mm), providing higher precision, better conductivity, and finer filtration. Ideal for wind turbine lightning protection, filtration, and thermal/electrical applications. ⚡💨

Which material is recommended for wind turbine lightning protection?

High conductivity copper or SS304/316 is preferred. Double-layer foils can safely dissipate current and reduce blade damage. ⚡🛡️

Can micro expanded metal be used for filtration?

Yes, materials like SS316 or nickel with small SWD are ideal. Controlled diamond openings ensure uniform flow and high particle capture efficiency. 🔬💨

How to select mesh size & strand thickness?

Consider application, conductivity, airflow, material strength, sheet size, and installation requirements. Our technical team can assist for optimal selection. 🛠️✅

Is customization available?

Yes. SWD, strand thickness, mesh weight, and sheet dimensions can be tailored to meet specific needs. 📐🛠️

Maintenance tips?

Routine cleaning, corrosion protection, and careful handling. Follow specific operational guidelines for precision or electrochemical applications. 🧽🔧

How to Calculate the Weight of Micro Expanded Metal? ⚖️

Use our special expanded metal weight calculator for accurate calculations.

Download Catalog 📄

MMO Micro Expanded Metal Catalog

Size & Application

Popular Size

Popular Size (mm)
Thickness	Strand Width	Long Way of Diamond
0.051	0.102	0.787
0.102	0.152	0.787
0.127	0.254	3.175
0.178	0.178	3.175
0.254	0.305	3.175

Application Field

Decorative Mesh
Covering & Support for Air and Fluid Filter
Strainer & Gutter Filter
Furniture
EMI/RFI Shielding
Battery Cell
Ventilation System
Satellite and Radar Antenna
Speaker Grill Covering

Download Catalog

How to order

How to order Micro Expanded Metal?

Please Specify:

Material: Titanium, Nickel, Carbon Steel, Aluminum, Stainless Steel 304 Or 316, etc.
Type: Standard/Raised, Flattened
Quantity: number of pieces – full size or cut pieces required
Piece Size: width (SWD) x length (LWD)
Shearing: bond or random. Please check the below photo for reference
Finish: hot-dipped galvanized, PVC coating, PVDF coating, Pt coating, special, if any

Item No.: typically expanded metal is specified like the following examples:

3/4 #16 S 3′ SWD x 6′ LWD Aluminum

– 1/2inch= Short Way Of Diamond Dimension
– #18 = Gauge (Usually not AWG, BWG, SWG, should be Washburn & Moen)
– “S” = Standard (“F” would indicate flattened)
– 3′ SWD x 6′ LWD = size of sheet width x length
– Aluminum = material

The Best Wire Gauge Chart

Gauge	American Wire Gauge(AWG) mm	Washburn & Moen mm	Birmingham Wire Gauge(BWG) mm	Standard Wire Gauge(SWG) mm	United States Standard mm
7/0		12.446		12.7
6/0	14.732	11.722		11.786
5/0	13.119	10.935		10.973	11.113
4/0	11.684	10.003		10.16	10.319
3/0	10.404	9.208		9.449	9.525
2/0	9.266	8.407		8.839	8.731
1/0	8.252	7.785		8.23	7.938
1	7.348	7.188	7.62	7.62	7.144
2	6.543	6.668	7.213	7.01	6.747
3	5.827	6.19	6.579	6.401	6.35
4	5.189	5.723	6.045	5.893	5.953
5	4.62	5.258	5.588	5.385	5.556
6	4.115	4.877	5.156	4.877	5.159
7	3.663	4.496	4.572	4.47	4.763
8	3.261	4.115	4.191	4.064	4.366
9	2.906	3.767	3.759	3.658	3.969
10	2.586	3.429	3.404	3.251	3.572
11	2.304	3.061	3.048	2.946	3.175
12	2.052	2.68	2.769	2.642	2.778
13	1.826	2.324	2.413	2.337	2.381
14	1.626	2.032	2.108	2.032	1.984
15	1.448	1.829	1.829	1.829	1.786
16	1.29	1.588	1.651	1.626	1.588
17	1.148	1.372	1.473	1.422	1.429
18	1.024	1.207	1.245	1.219	1.27
19	0.909	1.041	1.067	1.016	1.111
20	0.81	0.884	0.888	0.914	0.953
21	0.721	0.805	0.813	0.813	0.873
22	0.643	0.726	0.711	0.711	0.794
23	0.572	0.655	0.635	0.61	0.714
24	0.511	0.584	0.559	0.559	0.635
25	0.455	0.518	0.508	0.508	0.556
26	0.404	0.46	0.457	0.457	0.476
27	0.358	0.439	0.406	0.417	0.437
28	0.32	0.411	0.356	0.376	0.397
29	0.284	0.381	0.33	0.345	0.357
30	0.254	0.356	0.305	0.315	0.318
31	0.226	0.335	0.254	0.295	0.278
32	0.201	0.325	0.229	0.274	0.258
33	0.178	0.3	0.203	0.254	0.238
34	0.16	0.264	0.178	0.234	0.218
35	0.142	0.241	0.127	0.213	0.198
36	0.127	0.229	0.102	0.193	0.179
37	0.112	0.216		0.173	0.169
38	0.099	0.203		0.152	0.159
39	0.089	0.191		0.132
40	0.079	0.178		0.122
41	0.071	0.168		0.112
42	0.063	0.157		0.102
43	0.056	0.152		0.091
44	0.05	0.147		0.081
45	0.045	0.14		0.071
46	0.04	0.132		0.061
47	0.036	0.127		0.051
48	0.031	0.122		0.041
49	0.028	0.117		0.03
50	0.025	0.112		0.025

Shearing Type

Expanded Metal Mesh Direction