
Structure and Performance
The molecular formula of alumina is Al2O3. It has many isomorphous crystals, mainly 3 types, namely α-Al2O3, β-Al2O3, and γ-Al2O3, with different structures and properties. Among them, α-Al2O3 has the most stable structure, also known as corundum. At high temperatures above 1300°C, Al2O3 is almost completely converted into α-Al2O3. It is the main component of alumina bulletproof ceramics.The alumina arc ceramic bulletproof sheet produced by Jingcheng Special Ceramics has an alumina content of 99% and a Rockwell hardness of up to 88. Through the military shooting test, it has strong resistance to bullet impact, and the product can withstand the pressure shock wave of the bullet, and performs well in the shooting test.
Parameters
ITEM | UNIT | 99%Al2O3 |
Density | g/cm³ | ≥3.88 |
Vickers hardness | HV5 | ≥1520 |
Rockwell hardness | HRA | ≥90 |
Flexural strength | Mpa | ≥350 |

and the product is stable





Ballistic Material for the Plates:
i) Alumina(AL2O3) Ceramic Tiles & UHMWPE Backing (III-IV)
ii) Silicon Carbide( SIC) Ceramic Tiles & UHMWPE Backing (III-IV)
iii) 100% Pure UHMWPE( III / III+/ III++)


Bulletproof Plate Cutting:
i) SAPI cut is the shape of SAPI boards that fill the streets. (e.g. SAPI/ESAPI)
ii) Special tailoring refers to more aggressive corner cuts than SAPI, facilitating arm movements and shoulder support.
There are so-called SHOOTERS cut and SWIMMER cut.
iii) Traditional cutting includes the simplest square board, the smallest reinforcement, and small corners similar to RBA. (such as FULL SIZE)

Construction:
i) in conjuction with (ICW.) IIIA or lower threat level soft armor panel;
ii) Stand Alone(SA.),which means it can protect against the III/IV rating threat without any soft armor ballistic panels / inserts.

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To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.
Inner packing:Shockproof foam board. | Outer packing:Carton or Case. |
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At WEIDUN TECHNOLOGY, we are passionate about protecting and saving lives. We've partnered with the best brands under a strict set of guidelines and offer the high quality body armor and safety equipment available on the market.
Whether you are a professional already familiar with body armor, or a normal civilian just looking to protect yourself, our gear and equipment will provide you with the protection and security you can trust.
1. who are we?
We are based in Jiangsu, China, starting from 2022, sell to Eastern Europe, North America, Africa, Mid East, Domestic Market, South America, and Northern Europe. There is a total of about 51-100 people in our office.
2. how can we guarantee the quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3. what can you buy from us?
Bulletproof vests, Bulletproof helmets, bulletproof plates, stabproof productions, Tactical Vest
4. why should you buy from us, not from other suppliers?
1\We are a manufacturer of safety supplies
2\We have a complete production line and quality control, can provide you with guaranteed service
3\In the safety supplies industry we have 15 years of supply experience, and have own factory
5. what services can we provide?
Accepted Delivery Terms: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
Accepted Payment Currency: USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF;
Accepted Payment Type: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow;
Language Spoken: English, Chinese, Spanish, Russian
Please cantact us for more details,thanks!
