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99% Alumina Ceramic Parts Rings , Round Ceramic Heater Ceramic Ring Heater

99% Alumina Ceramic Parts Rings , Round Ceramic Heater Ceramic Ring Heater

    • 99% Alumina Ceramic Parts Rings , Round Ceramic Heater Ceramic Ring Heater
    • 99% Alumina Ceramic Parts Rings , Round Ceramic Heater Ceramic Ring Heater
    • 99% Alumina Ceramic Parts Rings , Round Ceramic Heater Ceramic Ring Heater
  • 99% Alumina Ceramic Parts Rings , Round Ceramic Heater Ceramic Ring Heater

    Product Details:

    Place of Origin: China
    Brand Name: Mingrui
    Certification: ISO9001, , CE, UL, TUV
    Model Number: Customization

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 pieces
    Price: negotiable
    Packaging Details: In accordance with international export standards,with moisture-proof wooden cases loading and transportation,place the bubble inside to prevent products knock against.
    Delivery Time: 15-30 working days after the order confirmed
    Payment Terms: L/C, T/T, Western Union, MoneyGram, D/P, D/A
    Supply Ability: 4000 pieces month
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    Detailed Product Description
    Sample Order: Acceptable Color: Ivory
    Material: Alumina Ceramic, Alumina(Al2O3)Ceramics Main Properties: Wear Resistant, Electrical Insulator, Resist High Temperature
    Testing Way: Strict Quality Control Custom-made: Welcome
    Feature: High Temperature Resistance Usage: Wear-resisting Material


    99% Alumina Ceramic Ring Durability, Round Ceramic Heater Ceramic Ring Heater


    Type: Alumina Ceramic Rings

    Application: Structure Ceramic

    Material: Alumina Ceramic

    Model Number: CUSTOMIZED

    Color: White & Ivory

    Purity: 95% - 99.9% Al2O3

    Max. Working Temperature: < 1750 Deg. C
    Quick Details


    Place of Origin: Guangdong, China (Mainland)
    Type: precision ceramic parts
    Color: White or Ivory
    MOQ: 1 piece
    Material: Alumina(Al2O3)Ceramics/Zirconia(ZrO2)Ceramics
    Testing Way: Quality Control
    Including Shape: Tube, Rod, Plate, Ring and so on
    Main products: Precision Alumina & Zirconia Ceramic Tube, Ceramic Rod, Ceramic Plate, Ceramic Ring
    Main Properties: Wear Resistant, Electrical Insulator, Resist High Temperature
    Practical Application: Semiconductor devices/Medical equipment/Electronics/LED
    Main Forming Way: Molding/Sintering/Dry Press/high-temperature sintering/grinding/polishing etc
    Samples: Custom-made is acceptable,we can provide free sample when we have the sample in stock
    Payment: 30% deposit in advance, the balance paid before shipment.
    Payment Terms: T/T, L/C, Paypal





    1. High purity, we have 95% Al2O3 plate with density 3.6g/cm3 and 99.7% Al2O3 plate with density 3.9g/cm3

    2. Tight tolerance, all the plate can be machined to tight tolerance +/-0.02mm at most, surface roughness can reach to Ra0.2um at most.

    3. Inspection: each single plate will be checked before shipping.

    4. Low transportation cost. We have long time cooperated shipping agency, which can provide very low prices.



    Typical properties for common materials of alumina

    Composition UNIT AL60 AL95 AL98
    AL2O3 content % 96 99.5 99.8
    Color   White Ivory Ivory
    Tensile strength Kpsi 32 38 36
    Flexural strength Kpsi 52 55 54
    Compressive strength Kpsi 300 377 350
    Density g/cc 3.70 3.90 3.92
    Hardness HV, GPa 13.8 17.2 18
    Thermal Conductivity W/(m K) 25 30 30
    C.O.T.E. In / In°C (x10^-6) 7.7 7.8 7.8
    Working temperature °C 1500 1650 1750
    Dielectric Constant   9.5 9.7 9.8
    Volume Resistivity (25°C) Ohm-cm >10^14 >10^14 >10^14


    * This chart just demonstrates the typical properties of common alumina materials we use to produce our alumina parts. Please notice that the property for customized alumina parts could vary due to different process. Stanford Advanced Materials could provide alumina products produced under your specified instruction, or do the best to meet customers’ requirements.

    ​Alumina Ceramic Ring Specifications
    1. alumina ceramic 
    2. Very small and very large size can be made
    3. High temperature, good abrasive.

    Refractory alumina ceramic substrate/ceramic plate is our main product.Misson can supply high quality alumina plates with competitive prices.

    Very small and very large sized plates can be made.

    Fine grinding can made tight tolerance.

    High temperature and abrasive resistance is good



    Product features : 


    Applicable to make ceramic wrist watch, watch ctrap, bracelet, ring and necklace etc. With the property of abrasion resistance, invariant color, elegance and shining, ceramics are the ideal decorative material for watch and jewelry industry. All the ceramics can be customized.


    1. High hardness.

    2. High heat resistance : Alumina ceramic has excellent thermal stability,which means that it is

         widely used in areas where resistance to high temperatures is essential.

    3. Good wear resistance : Alumina ceramic is the material of choice for alumina wear parts.

    4. High electrical resistivity : Alumina is an electrically insulating material.

    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.



    Properties of Alumina and Zirconia Ceramic : 
    Properties Units 95 Alumina 99 Alumina ZrO2
    Density g / cm³ 3.65 3.92 5.95-6.0g/cm³
    Water absorption % 0 0 0
    Coefficient of thermal expansion 10-6/K 7.9 8.5 10.5
    Modulus of Elasticity Young's Mod GPa 280 340 210
    Poisson's ratio / 0.21 0.22 0.3
    HV Hardness HV MPa 1400 1650 1300-1365
    Flexural Strength @ room temperature MPa 280 310 950
    Flexural Strength @700°C MPa 220 230 210
    Compressive Strength @ room temperature MPa 2000 2200 2000
    Fracture Toughness MPa *m 1/2 3.8 4.2 10
    Heat conductivity @ room temperature W/ m*k 18-25 26-30 2-2.2
    Electrical Resistivity @ room temperature Ω*mm2 /m >1015 >1016 >1015
    Max use temperature °C 1500 1750 1050
    Resistance to acid alkaline / high high high
    Dielectric Constant / 9.5 9.8 26
    Dielectric Strength KV/mm 16 22 /
    Thermol Shock Resistance △ T ( °C ) 220 180-200 280-350
    Tensile Strength @ 25 °C MPa 200 248 252


    Company Introduction:

    We ( Dongguan Mingrui Ceramic Technology Co., Ltd ) are a professional manufacturer specialized

    in R&D, manufacturing and selling customized all kinds of high precision zirconia and alumina ceramic parts . Our main products include ceramic rod , ceramic tube, ceramic plunger, ceramic valve, ceramic plate, ceramic shaft and bearing , ceramic nozzle etc , which are mainly used in industrial fields of Machinery, Petrochemical oil and gas, Valves, Automotive, Food Processing, Fluid Handling, Process Control, Thermal Processing, Aerospace, Defense, Eletronic and Electrical, Textile, Mechanical, Engineering, Mineral Processing, etc.
    We have a full service include mold design and development , ceramic forming , precision machining

    and precision detection technology. We have achieved great successes in particular requirements

    which is based on cooperating with Tsinghua University and getting rich experience by our professional technical engineer teams . Our factory have an unique technical called mirror polishing which improve

    our products more smooth , bright than other competitors.

    photos of ceramic ring  :
    99% Alumina Ceramic Parts Rings , Round Ceramic Heater Ceramic Ring Heater99% Alumina Ceramic Parts Rings , Round Ceramic Heater Ceramic Ring Heater

    FAQ : 


    1. What kind of industry ceramics do you have ? 

    We specialized in 95% 97% 99% alumina ceramic and zirconia ceramic parts .


    2. What kind of molding method do can you supply ? 

    Dry Pressing , isostatic pressing , grouting , hot-chamber die casting , tape casting , injection molding, etc,   injection molding and isostatic molding is the most commonly used. 


    3. What stabilizer do you use when processing ?

    Yttria stabilizer is the most commonly used in our industrial ceramic parts.


    4. Can you produce free samples for me ?

    Yes usually ,  we can produce free samples for you but it is up to the product complexity .


    5. What terms can you accept for payment ?

    T/T, L/C , Western union , Money Gram and Paypal is welcome , but paypal and western union only for small -sum payment. 



    Contact Details
    Dongguan Ming Rui Ceramic Technology Co.,ltd

    Contact Person: Admin deng

    Tel: 86-18122974730

    Send your inquiry directly to us (0 / 3000)

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