Dongguan Ming Rui Ceramic Technology Co., Ltd

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Insulating Zirconia ZrO2 Ceramic Pin / Location Dowel Pin Length 5mm - 400mm

Insulating Zirconia ZrO2 Ceramic Pin / Location Dowel Pin Length 5mm - 400mm

  • Insulating Zirconia ZrO2 Ceramic Pin / Location Dowel Pin Length 5mm - 400mm
  • Insulating Zirconia ZrO2 Ceramic Pin / Location Dowel Pin Length 5mm - 400mm
Insulating Zirconia ZrO2 Ceramic Pin / Location Dowel Pin Length 5mm - 400mm
Product Details:
Place of Origin: China
Brand Name: Mingrui
Certification: ISO9001-2015,,Ul
Model Number: Costomized
Payment & Shipping Terms:
Minimum Order Quantity: 10 pieces
Price: USD1-10/pcs
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: High Temperature Resistant Item Name: Zirconia Ceramic Pin
Color: Black White Blue Or Custom Precision: +- 0.001mm
Water Absorption: 0 Composition: ZrO2 94.7% + Y2O3 5.2%
Application: Industrial Ceramic Type: Ceramic Parts
High Light:

ceramic guide pin


ceramic dowel pins

Insulating Zirconia ZrO2 Ceramic Location Dowel Pin For Welding



Product Name

Insulating Zirconia ZrO2 Ceramic Location Dowel Pin For Welding

Material Zirconia 
Color White, Black 
OD 0.2mm - 50mm, And According to drawings
Length 5mm - 400mm, And According to drawings
Surface Roughness Ra0.05
Torlerance +/- 0.001mm
Lead time: 15 - 30days
Max. working temperature 1500 -1700 °C
Samples Avaliable
Shipping: Air Express (DHL/UPS/TNT/ FedEx) or Ocean Shipping



Ceramic parts we can produce:

During the process of high precision electric resistance welding, the accurate locating of nuts on workpiece is an important problem needed to be solved, therefore welding location dowel pin was produced. In the past, KCF welding pins was used extensively, but the pins are electric conductive with only a small insulating layer on the outside surface. When the insulating layer was worn, electric spark will occur and easily damage thread of nuts, leading to unnecessary repair of nuts and affecting production efficiency.

Zirconia ceramic has good electrical insulation, zirconia ceramic welding pins willl have no the same problem as KCF pins. Moreover, zirconia ceramic has very high hardness and good wear resistance, ceramic pins will have much longer lifespan than KCF, it will reduce the process to exchange of welding pins.

Typical Feature

1. Electrical Insulation

2. High Hardness (Moh's hardness 9)

3. Low wear loss

4. Much longer lifespan, reducing the frequent exchange


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.



Properties Sheet of zirconia and alumina : 


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
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:
Insulating Zirconia ZrO2 Ceramic Pin / Location Dowel Pin Length 5mm - 400mm 0
Insulating Zirconia ZrO2 Ceramic Pin / Location Dowel Pin Length 5mm - 400mm 1
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: Admin deng

Tel: 86-18122974730

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