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outer diameter polished silicon nitride ceramic rods bars

  • outer diameter polished silicon nitride ceramic rods bars
  • outer diameter polished silicon nitride ceramic rods bars
  • outer diameter polished silicon nitride ceramic rods bars
  • outer diameter polished silicon nitride ceramic rods bars

outer diameter polished silicon nitride ceramic rods bars

    Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
    Terms of Trade: FOB
    Min. Order: 1 Piece/Pieces
    Delivery Time: 15 Days
    Packaging: Customized
    Brand: Hard
    Transportation: Ocean,Land,Air
    Place of Origin: Guangdong,China
    Supply Ability: 1,000,000 pcs/Month
    Certificate: SGS
    Port: Shenzhen

Basic Info

Model No.: Si3N4 224

Product Description

outer diameter polished silicon nitride ceramic rods bars shafts

Reputation depends on quality, quality comes from Hard!

Silicon Nitride Ceramic:

Extrusion, also known as extrusion molding, is a method of using an extruder (extruder) to continuously pass heated resin through a mold to extrude products of the desired shape. Extrusion is sometimes also used in the molding of thermoset plastics and can be used in the molding of foam plastics. The advantage of extrusion is that products of various shapes can be extruded, the production efficiency is high, and it can be automated and continuous production; the disadvantage is that thermosetting plastics cannot be processed by this method widely, and the product size is prone to deviation. Injection molding is also called injection molding. Injection molding is a method of using an Injection Molding Machine (or Injection Machine) to inject thermoplastic melt into a mold under high pressure, and then cool and solidify to obtain a product. Injection molding can also be used for the molding of thermosetting plastics and foam plastics. The advantages of injection molding are fast production speed, high efficiency, automatic operation, and the ability to form parts with complex shapes, which is especially suitable for mass production. The disadvantage is that the cost of equipment and molds is high, and it is difficult to clean the injection molding machine. Blow molding is also called hollow blow molding or hollow molding. Blow molding is a method in which the hot resin parison closed in the mold is blown into hollow products by the pressure of compressed air. Blow molding includes two methods: blow molding and blow molding hollow products. The blow molding method can be used to produce film products, various bottles, barrels, pots, and children's toys. Calendering is to process the resin and various additives through the gap between two or more calender rolls of the calender, which turn in opposite directions, after the expected treatment (kneading, filtration, etc.) into a film or sheet, and then peel it off from the calender roll. , A molding method that is cooled and shaped. Calendering is a molding method mainly used for polyvinyl chloride resin, which can produce films, sheets, plates, artificial leather, floor tiles and other products.
Si3N4 pistons


High hardness, high strength, wear resistance, corrosion resistance, high temperature(1200°), good thermal diffusivity, good thermal shock resistance(avoid the temperature changing rapidly), good insulativity, low density. The comprehensive properties are best in most of structure ceramic.

Data Sheet↓

Color: Black Grey
Density: >3.2g/cm3
Hardness: HRA90
Vickers Hardness (Hv50): >1550 HV0.5
Modulus of Elasticity: 290Gpa
Flexural Strength: >600Mpa
Compressive Strength: 2500Mpa
Modulus of Elasticity(25°C): 65Gpa
Fracture toughness:>6.0 Mpam1/2
Maximum Use Temperature: 1200°C
Thermal Conductivity:15-20 W(m.K)
Thermal Expansion Coefficient: >3.1 10-6/°C
Thermal Shock Resistance: 500 △T°C
Special Heat Capacity: 700 KJ/kg.K
Dielectric Strength: 1 KV/mm
Dielectric Constant: er
Volume Resistivity(20°C): 1.0*10(12)Ω.cm

Application industry:

Machinery, electronic, semiconductor, chemical, petroleum, smelt.

Specific application:

Welding shaft, electronic substrate, plunger, nozzle, slide guide, diesel parts, metal molding, shaft wheels etc.

Why Choose Us?
1.12 years of professional production industrial ceramics factory
2.High quality products with low price
3.High precision parts with lowest tolerance
4.Short time for production
5.Has a group of experienced, professional and efficient R&D team
6.Has a good reputation in China and abroad.

7.MOQ is not limited, small quantity is welcome.

8.Vigorous team and good after-sales service

Products Show

silicon nitride

Manufacturing Process


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 15-30 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, 50% T/T in advance ,balance before shippment.


 Shenzhen Hard precision ceramics Co., LTD. has been committed to design, development and manufacture of industrial ceramic products since 2007. Compared with metal, advanced ceramic has the following excellent performance: high hardness, high strength, high temperature (fire), and can wear resistance, corrosion resistance, acid and alkali resistance, oxidation resistance, insulation, non-magnetic and good chemical stability . So it is often used in the environment where the metal material cannot endure. With its promising application , advanced ceramics are widely used in aerospace, aviation, military industry, nuclear power, machinery, textile, chemical, electronics, food, medical and other industries. Our advanced ceramic products made by zirconia (ZrO2), alumina (Al2O3), silicon nitride (Si3N4), etc. Our products can divide into two parts: one part is ceramic ball, rods, tubes, ceramic materials such as plate, block, strip and so on, and the other part is the precision ceramic parts which are for industrial use and civilian products. Our company has advanced one-stop equipment and technology of ceramic forming, sintering and processing. Hope we can establish excellent cooperation with customers from at home and abroad for a wide range .

Company Info

  • Representative: ZHOU SHENGBIN
  • Product/Service: Alumina Ceramics , Zirconia Ceramics , Silicon Nitride Ceramics , Machinable Glass Ceramics , Laser Cutting Ceramics , Other Materials
  • Capital (Million US $): US$500,000
  • Year Established: 2007
  • Total Annual Sales Volume (Million US $): US$2.5 Million - US$5 Million
  • Export Percentage: 81% - 90%
  • Total Annual Purchase Volume (Million US $): US$1 Million - US$2.5 Million
  • No. of Production Lines: 5
  • No. of R&D Staff: 5 -10 People
  • No. of QC Staff: Fewer than 5 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 1,000-3,000 square meters
  • Factory Location: 1st F, Building 8, Nangang Second Industrial Zone, Nanshan Dist, Shenzhen,China 518055
  • Contact Person: Mr. Watson Lin
  • Tel: 86-0755-86238834
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