Hot Pressed High Insulation Electrical Alumina Ceramic Standoff
Specification and production capability of alumina ceramic parts
Material | alumina, zirconia, steatite optional |
Outer diameter | 5~20 mm |
Length | 20~ 100mm |
Roughness | To be Ra0.1 | Roundness | To be 0.005mm |
Surface treatment | Polished, Glazed availability |
Cosmetic | Smooth surface without no contamination, deformation, and crack |
Main characteristics of the alumina ceramic standoff
1. High hardness, it is can be up to 1700 HV, and Super compressive strength up to 2240 Mpa
2. High heat resistance: Alumina ceramic parts offer excellent
thermal stability, which means that it is widely used in areas
where resistance to high temperatures is essential.
3. Good wear resistance: it is an ideal choice to wear parts in
high abrasive industry
4. High electrical resistivity: used in all-electric products,
electric heating products, and wear-resistant machinery parts.
5. High corrosion resistance: It is insoluble in water and only
slightly soluble in strong acid and alkaline solutions. Good
chemical stability of alumina leads to high corrosion resistance.
6. We support a variety of customized alumina ceramic parts base on
customer's drawing, sample, or reference parameters
Description of alumina ceramic standoff
Our facility manufactures many different sizes of alumina ceramic standoffs. Alumina ceramic standoffs are very stable under
high temperatures, as they have outstanding dielectric properties,
chemical erosion resistance and high wear and abrasion resistance.
In addition, they have excellent mechanical strength which makes
these components last a great deal longer than those made from
non-ceramic materials. Our Alumina & Steatite Standoffs are
economical and practical.
Outside diameter surfaces can be glazed or unglazed. All Insulators
have radii on all corners. Custom sizes can be produced by request.
Besides ceramic standoff, we manufacture a wide range of alumina
ceramic rings, including ceramic tubes, ceramic rings, ceramic
disc, ceramic rod, ceramic arms, ceramic wire guides. Whatever, its
a prototyping case, or high volume demand, we believe we are able
to provide you a desirable solution.
Application of alumina ceramic parts:
Alumina ceramic parts are widely used in the electronic,
electrical, machinery, chemistry, ceramic seal, mineral, new energy, military, aerospace, almost all modern industries.
Datasheet of technical ceramic materials
Property | Units | Materials |
99.5%Al2O3 | 99%Al2O3 | 95%Al2O3 | ZrO2 | Si3N4 |
Density | g/cm3 | ≥3.85 | ≥3.80 | ≥3.60 | ≥6.0 | ≥3.2 |
Water absorption | % | 0 | 0 | 0 | 0 | 0 |
Hardness | HV | 1700 | 1700 | 1500 | 1300 | 1550 |
Flexural strength | Mpa | ≥379 | ≥338 | ≥320 | ≥1200 | ≥600 |
Compressive strength | Mpa | ≥2240 | ≥2240 | ≥2000 | ≥1990 | ≥2500 |
Fracture toughness | Mpa m1/2 | 4-5 | 4-5 | 3-4 | 6.5-8 | 6 |
Max. service temperature (Non-loading) | ℃ | 1675 | 1600 | 1500 | 1000 | 1200 |
CTE (20-800℃) | 1×10 -6 /℃ | 6.5~8.0 | 6.2~8.0 | 5.0~8.0 | 8.0~9.5 | 3.1 |
Thermal shock | T(℃) | ≥250 | ≥200 | ≥220 | ≥300 | ≤1000 |
Thermal conductivity(25℃) | W/m.k | 30 | 29 | 24 | 3 | 15~20 |
Volume resistivity (25℃ ) | ohm.cm | >1 x 10 14 | >1 x 10 14 | >1 x 10 14 | >1 x 10 11 | >1 x 10 12 |
Insulation strength | KV/mm | 19 | 18 | 18 | 17 | |
Dielectric constant(1Mhz) | (E) | 9.7 | 9.5 | 9.5 | 29 | |
Packaging proposal and transportation solutions
1. We will keep the ceramic parts inside the inner package to be
fixed without moving, then it will prevent them from collision each
other, to avoid any cause any chippings during transportation.
2. In addition, the inside of the outer carton will be filled with
sufficient protective kinds of stuff.
Why choose us?
★ 10+ Years of manufacturing experience in OEM, ODM ★ Powerful R&D,
mass production capability
★ In-house comprehensive manufacturing types of equipment ★
Rigorous quality control system and processes
★ Surpassing pre-sales and after-sales service ★ Abide all orders
as the first priority
FAQs (Frequently Asked Questions)
Q1. Are you a factory or trading company?
A: We are a manufacturer. You are welcome to visit our factory.
Q2: Do you send a sample to check?
A: Sure, the sample is free and freight collect.
Q3: When will you ship it?
A: If the products are in storage, we'll ship within 48 hours
Q4: When can I get the price?
A: We regularly quote within 24 hours after we get your inquiry. If
you are in urgent need of getting the price.
Please call us or tell us in your email so that we will proceed
with your inquiry as a priority.
Q5: Is it available to provide customized products?
A: We always support custom-made demand as per different materials,
dimensions, and designs.
Q6: How to ensure quality?
A: The dimension out of any batch will be carried out sampling
inspection per international AQL standard. A 100% cosmetic
inspection will be done.
Q7: What other products are you dealing with?
A: We focus on a variety of ceramic tubes, ceramic substrates,
ceramic sheets, textile ceramics besides metalized ceramics.