Precision Wear Resistant 99% Al2O3 Ceramic Column Rod
Alumina (Al₂O₃) Ceramic Rod:
We specialize in manufacturing 99% high-purity alumina ceramic rods, produced with premium
alumina powder via dry pressing and high-temperature sintering, followed by precision centerless
grinding and mirror polishing. Dense pore-free structure delivers outstanding wear resistance,
electrical insulation and thermal stability. Widely used as core ceramic parts for precision machinery,
fluid equipment, new energy electronics and automation fixture positioning components. Standard
size rods are in stock, custom non-standard cylindrical ceramics per customer drawings & samples
are available.
![]()
![]()
Core Advantages
1:Ultra-long Wear Life: Harder than stainless steel, ultra-low friction loss; plungers & guide posts
maintain shape after long service.
2:Superior Electrical Insulation: High breakdown voltage, non-conductive at room & high temperature,
ideal for high-voltage electronic isolation.
3:Wide Temperature Resistance: Stable up to 1600℃ without deformation or softening, crack-resistant
under thermal cycling.
4:Ultra-precise Dimension: Tolerance down to ±0.003mm after fine polishing, excellent concentricity for
tight clearance assembly.
5:Chemical Corrosion Resistance: Acid & alkali resistant, inert to metal media, perfect for chemical & fluid
transfer equipment.
![]()
Application
Alumina ceramic rod of application:
1. Fluid Equipment: Ceramic pump plungers, valve cores, metering pump shafts
2. Automation Fixtures: Locating pins, guide posts, wear-resistant thimbles, insulating support pillars
3. Electronics & Electrical: High voltage insulators, connector parts, new energy battery insulation components
4.Textile Machinery: Ceramic yarn guide rods, wear resistant wire passing columns
5.Lab Equipment: High temperature wear resistant support posts
|
|
|
|
|
|
|
|
|
|
|
|
Thermal Conductivity @ 20°C
|
|
|
|
|
Thermal Expansion a at 20–400°C
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Properties
|
Unit
|
95%Al2O3
|
99%Al2O3
|
99.5%Al2O3
|
|
Dielectric Constant
|
1MHz
|
9.4
|
9.9
|
9.9
|
|
Dielectric Strength
|
V/m
|
15 x 10 6
|
15 x 10 6
|
15 x 10 6
|
|
Dielectric Loss
|
1MHz
|
4 x 10 -4
|
4 x 10 -4
|
4 x 10 -4
|
|
Volume Resistivity @ 25°C
|
Ω・cm
|
>10 14
|
>10 14
|
>10 14
|
|
Volume Resistivity @ 500°C
|
Ω・cm
|
>10 8
|
>10 8
|
>10 10
|
Various Types of Alumina Ceramic piston
We Can Do OEM and 0BM According to Your Drawing and Requirements.
Features of alumina ceramic
* Relatively low density;
* Extremely high operating temperature;
* Very high hardness and compressive strength;
* Excellent electrical insulation properties;
* Corrosion and wear resistance;
* Biologically inert, food compatibility.
Alumina Ceramic Properties
The following only lists the performance parameters of the three most common aluminum oxide ceramics. Normally, alumina ceramics
are composed of these types
Packing
Sintering Kiln
Q1. Do you provide product samples? Yes, we provide samples subject to availability. A nominal sample fee may apply in some cases, and shipping costs are borne by the customer.
Q2. What are your accepted payment methods? We accept T/T (bank transfer) in advance, Western Union, Alipay, and PayPal.
Q3. What is your typical delivery lead time? Lead times vary depending on product requirements, including material selection, dimensions, and specific manufacturing processes.
Q4. Do you perform quality inspection before shipment? Yes, we conduct 100% inspection of all goods prior to delivery to ensure they meet specified standards.
Q5. What other ceramic materials do you offer? We supply a range of advanced ceramic materials, including Alumina, Zirconia, Aluminum Nitride,Boron Nitride, Silicon Nitride, Machinable Glass Ceramic, and related specialized ceramics.
