Silicon Nitride Ceramic Plunger Si3N4 Plunger

Silicon nitride ceramic plunger with high purity silicon nitride powder as the main raw material, via pressing molding and high temperature sintering processes.It has high mechanical strength, high temperature resistance and corrosion resistance, with good wear resistance and self lubrication effect, it is mainly used in plunger pumps, hydraulic system components, etc., to control the flow and pressure of fluid.

Brand:
ATCERA
Item NO.:
AT-SIC-ZS001

Materials
Si3N4
Shapes
Mechanical Parts
Applications
Mechanical Parts , Petrochemical Industry , Food Processing , Biology and Medicine

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Properties of Silicion Nitride Ceramic Plunger

1. Corrosion resistance

Silicon nitride material itself has good corrosion resistance, and silicon nitride plunger can be in contact with various acids, alkalis, salt water and other chemical agents, without the risk of failure caused by corrosion, and does not pollute the contacted liquid.

2. High temperature resistance

The normal use temperature of the silicon nitride plunger can reach higher than 1300℃, meeting the requirements of high temperature environment.

3. Wear resistance

Silicon nitride material has high hardness, good wear resistance, can run stably for a long time, and long service life.

4. Lubrication free

After polishing the silicon nitride plunger, the surface finish is high, the self-lubrication characteristics are very good, no need lubrication oil, even in vacuum can be used normally.

Applications of Si₃N₄ Plunger

1. Plunger pump: silicon nitride plunger is the core component of silicon nitride ceramic plunger pump, with good corrosion resistance and wear resistance, low friction resistance, which can make the pump get long service life, widely used in metallurgy, mining, chemical, food and medicine production and other industries.

2. Mechanical parts: silicon nitride plunger has high mechanical strength, good wear resistance, high strength, can be made into various mechanical parts those used in lubricating oil system and hydraulic system, etc., to control liquid flow.

Size Chart of Si3N4 Ceramic Plunger

We are committed to delivering optimal silicon nitride plungers tailored to your exact specifications. Our dedicated team ensures meticulous adherence to your instructions, striving to exceed customer expectations. Additionally, we offer the flexibility of customized sizes to accommodate your unique requirements.

Drawing and specification requirements shall be provided if customized design request.

Machining Tolerance:

surfance roughness: Ra0.02

cylindricity: ±0.006mm

concentricity: ±0.002mm

Send Requirements for Custom Design

Silicon Nitride Ceramic Plunger
Item NO.	Diameter (mm)	Length (mm)	Purity (%)
AT-SIC-ZS001	2	20	85-99
AT-SIC-ZS002	2	50	85-99
AT-SIC-ZS003	3	50	85-99
AT-SIC-ZS004	4	50	85-99
AT-SIC-ZS005	5	50	85-99
AT-SIC-ZS006	6	60	85-99
AT-SIC-ZS007	6.75	50	85-99
AT-SIC-ZS008	7.5	100	85-99
AT-SIC-ZS009	8	30	85-99
AT-SIC-ZS010	10	40	85-99
AT-SIC-ZS011	12	10	85-99
AT-SIC-ZS012	12	40	85-99
AT-SIC-ZS013	15	10	85-99
AT-SIC-ZS014	15	40	85-99
AT-SIC-ZS015	20	80	85-99
AT-SIC-ZS016	20	40	85-99
AT-SIC-ZS017	25	50	85-99
AT-SIC-ZS018	30	80	85-99
AT-SIC-ZS019	2-80	20-200	85-99

Technical Data of Silicon Nitride Materials

Si3N4 Type	Gas pressure sintering Si3N4	Hot pressing sintering Si3N4
Density (g/cm³)	3.2	3.3
Flexture strength (MPa)	700	900
Young Modulus (GPa)	300	300
Poisson's ratio	0.25	0.28
Compressive strength (MPa)	2500	3000
Hardness (GPa)	15	16
Fracture toughness (MPa*m^1/2)	5~7	6~8
Maximum working temperature (℃)	1100	1300
Thermal conductivity (W/m*K)	20	25
Thermal expansion coefficient (/℃)	3*10^-6	3.1*10^-6
Thermal shock resistance (ΔT ℃)	550	800

*This chart illustrates the standard characteristics of the silicon nitride materials commonly employed in the manufacturing of our Si₃N₄ products and parts. Please be aware that the attributes of customized silicon nitride products and parts may vary depending on the specific processes involved. Detailed parameter is decided by type and composition of stabilizing agent.

Usage Instructions

1. Select the appropriate size and tolerance to ensure that the plunger can move freely and without leakage after matching with the cylinder.

2. During installation, ensure that the plunger and inner surface of the cylinder body are clean, without dust or other impurities.

3. After installation, test the flexibility of the plunger and leakage first, and then apply load to put into use formally.

4. Check the working condition of the plunger regularly. If there are cracks or serious wear, it should be replaced in time.

Valuable Information

Si₃N₄ Plunger Packing

Silicon nitride plungers are carefully packaged in appropriate containers to avoid any potential damage.

Customization Advantages

1. According to your application scenario, analyze the needs, choose the appropriate material and processing plan.

2. Professional team, quick response, can provide solutions and quotations within 24 hours after confirming the demand.

3. Flexible business cooperation mechanism, support at least one piece of quantity customization.

4. Quickly provide samples and test reports to confirm that the product meets your needs.

5. Provide product use and maintenance suggestions to reduce your cost of use.

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FAQ

Do you supply the materials unlisted on your website?

Although our primary focus is on advanced ceramic materials such as alumina, zirconia, silicon carbide, silicon nitride, aluminum nitride, and quartz ceramics, we are always exploring new materials and technologies. If you have a specific material requirement, please contact us, and we will do our best to fulfill your needs or find suitable partners.

Can you aid in material selection & ceramic product design?

Absolutely. Our technical team possesses profound knowledge of ceramic materials and extensive experience in product design. We are happy to provide you with material selection advice and product design support to ensure optimal performance for your products.

Do you have a minimum order value requirement?

We do not have a fixed minimum order value requirement. We always focus on meeting our customers' needs, and we strive to provide quality service and products regardless of the order size.

What services beyond ceramic products do you offer?

In addition to ceramic products, we also provide a range of additional services, including but not limited to: customized ceramic processing services based on your needs, using blanks or semi-finished blanks produced by yourself; if you are interested in outsourced ceramic packaging and metallization services, please contact us for further discussion. We are always committed to providing you with a one-stop solution to meet your various needs.

Do you offer international shipping services?

Yes, we do. No matter where you are located globally, we can ensure the safe and timely delivery of your order.

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