Dongguan Ming Rui Ceramic Technology Co., Ltd

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Half Round Alumina Ceramic Parts / Alumina Ceramic Blocks with Holes

Half Round Alumina Ceramic Parts / Alumina Ceramic Blocks with Holes

  • Half Round  Alumina Ceramic Parts / Alumina Ceramic Blocks  with Holes
Half Round  Alumina Ceramic Parts / Alumina Ceramic Blocks  with Holes
Product Details:
Place of Origin: China
Brand Name: Mingrui
Certification: ISO9001-2005
Model Number: XF-121
Payment & Shipping Terms:
Minimum Order Quantity: 1 pieces
Price: USD1.21-5.16
Packaging Details: intertional carton box
Delivery Time: 15 working days after the order confirmed
Payment Terms: L/C, T/T, Western Union, MoneyGram, D/P, D/A
Supply Ability: 10000 pieces month
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Detailed Product Description
Features: Half Round Alumina Parts Item Name: Half Round Alumina Ceramic Blocks
Color: White Blue Or Custom Function: Industrial Ceramics
Material: Alumina Ceramic MOQ: 1 PCS
Delivery: 15 Days Shipping: DHL EMS UPS FEDEX TNT
OEM: Welcome Precision: +- 0.001mm
High Light:

machining alumina ceramic


aluminium oxide ceramic


Half Round Alumina Ceramic Parts / Alumina Ceramic Blocks with Holes


Product Name Half Round Alumina Ceramic Parts / Alumina Ceramic Blocks with Holes
Material Alumina Ceramic 
Color white or black or customed
Custom  normally 
Surface  smooth ,  glossy 
Machinable yes
precision  high 
Used  ceramic substrates 



Alumina Ceramic Blocks  consist of pure copper bonded to a ceramic substrate such as Al2O3 (Alumina), AlN (Aluminum Nitride), HPS (ZrO2 doped) or silicon based Si3N4 (Silicon Nitride).

Mingrui provides two technologies to attach the substrate with the copper. DBC (direct bond copper) – a high temperature melting and diffusion process where the pure copper is bonded onto the ceramic and AMB (active metal brazing) – a high temperature process where the pure copper is brazed onto the ceramic substrate.

The high heat conductivity as well as the high heat capacity and thermal spreading of the thick copper cladding makes curamik substrates indispensable to power electronics. The mechanical stress on silicon chips mounted directly on the substrate (Chip on Board) is very low, since the coefficient of thermal expansion (CTE) of the ceramic substrate is better matched to the CTE of silicon compared to substrates using a metal or a plastic basis


Alumina Ceramic Blocks are produced in a master card format of 5“x7“ and 5,5“x7,5“. The individual parts can be left in the master card format to support more efficient assembly and mounting of components before being separated into individual pieces. We also offer single pieces for single piece assembly.



Alumina Ceramic Blocks Advantages:

  • Great heat conductivity and temperature resistance
  • High insolation voltage
  • High heat spread
  • Adjusted expansion coefficient enables chip on board
  • Efficient processing of master cards


More photos of Alumina Ceramic Blocks :


Half Round  Alumina Ceramic Parts / Alumina Ceramic Blocks  with Holes 0

Half Round  Alumina Ceramic Parts / Alumina Ceramic Blocks  with Holes 1
Ceramic parts we can produce:
Alumina ceramic, Zirconia ceramic , Ceramic Dowel pin, Zirconia Positioning pin, Insulating ceramic plate

Ceramic adapter plate,Ceramic centering pin,Ceramic connectors,Ceramic spinner,Ceramic roller

Ceramic blade,Ceramic brackets,Ceramic disc,Ceramic insulator,Ceramic rod,ceramic atomizer

ceramic fuse pin,ceramic nozzle,ceramic ferrule,ceramic necklace,ceramic ornament,alumina ceramic plate, ceramic cylinder, ceramic guide, ceramic pin, ceramic bushing, ceramic brick,ceramic injection molding,ceramic bushings,ceramic smoking pipe, ceramic spacer,ceramic piston pump,ceramic part

ceramic heating element vaporizer e cigarette, al2o3 ceramic, ceramic donut atomizer, alumina ceramic disc, alumina ceramic sheet , ceramic alumina , ceramic pressure sensor , ceramic sheet,

ceramic washer, zirconia ceramic plate, ceramic insert, white ceramic ring, ceramic shaft

ceramic pump, ceramic piston, ceramic nail, ceramic insulators, ceramic rod 3mm , ceramic dowel pin

ceramic pin gage , alumina ceramic parts , ceramic burr , ceramic proppant , ceramic needle

ceramic grinder, alumina ceramic rod , alumina ceramic ring, ceramic conical burr , ceramic heater rod

ceramic gear , machinable ceramic, ceramic arms , white ceramic ornaments , sustained high temperature on ceramics


Mingrui offers you a wide range of production facilities like extrusion, injection moulding, pressing and casting. Depending on product geometry and quantities, we will choose the suitable technique for your products.For the final finishing of the parts we use CNC machining centres, equipped with diamond tools in order to meet high accuracies.

Our aim is to offer the ideal solution for any application. Our engineers therefore offer custom solutions that range beyond our existing product portfolio. With our well-equipped industrial development facilities, we produce innovations that can be rapidly commercially exploited.

Main Features:
1) High hardness.
2) High heat resistance: alumina ceramic has excellentthermal 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.

Company Introduction
Mingrui ceramic manufacture and provides alumina ceramic components for a wide range of application like Mechanical Equipment, Electronic & Electrical, Oil Drilling, Medical, Chemical Industry etc. According to actual application and customer's requirement, the purities vary from 95%-99.7% and the forming methods will be different. The forming methods applied in our plant include dry pressing, isostatic pressing, injection moulding, extrusion moulding. With experienced engineers and talented workers, we are confident to offer high quality, high precision, complex components for customers worldwide.

Mingrui Ceramics has years of experience designing and developing technical ceramic solutions for a wide variety of applications and industries.Wear And Corrosion Resistant Ceramic Shaft Chemical Stirring Rod. We offer this expertise to all of our customers to ensure the best design and materials are chosen for their specific application and needs.Wear And Corrosion Resistant Ceramic Shaft Chemical Stirring Rod,Typically, our custom technical ceramic components and parts we supply are used for one of three main reasons:
Half Round  Alumina Ceramic Parts / Alumina Ceramic Blocks  with Holes 2

Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have any other question, pls feel free to contact us .

Contact Details
Dongguan Ming Rui Ceramic Technology Co.,ltd

Contact Person: bella

Tel: +8618122974730

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