| Delivery Time | Negotiable | 
| Payment Terms | Negotiable | 
| Roughness | 0.1um | 
| Flexural Strength | 850-900 MPa | 
| Color | gray | 
| Type | Ceramic Parts | 
| Logo | Laser Engraving | 
| Bending Strength | >750 MPa | 
| Shape | customerized | 
| Dielectric Constant | 9 | 
| Colour | gray | 
| Wire Length | 300mm | 
| Size Range | 0.5mm-100mm | 
| Fracture Toughness | 6-7(MPa•m1/2) | 
| Density | 3.2-3.3 g/cm3 | 
| Thermal Conductivity | 25-30 W/mK | 
| Voltage | 110-220V | 
| Packaging Details | Carton | 
| Place of Origin | Made In China,Zhejiang,Jinhua | 
| Brand Name | Dayoo | 
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Product Specification
| Delivery Time | Negotiable | Payment Terms | Negotiable | 
| Roughness | 0.1um | Flexural Strength | 850-900 MPa | 
| Color | gray | Type | Ceramic Parts | 
| Logo | Laser Engraving | Bending Strength | >750 MPa | 
| Shape | customerized | Dielectric Constant | 9 | 
| Colour | gray | Wire Length | 300mm | 
| Size Range | 0.5mm-100mm | Fracture Toughness | 6-7(MPa•m1/2) | 
| Density | 3.2-3.3 g/cm3 | Thermal Conductivity | 25-30 W/mK | 
| Voltage | 110-220V | Packaging Details | Carton | 
| Place of Origin | Made In China,Zhejiang,Jinhua | Brand Name | Dayoo | 
| High Light | automotive engines silicon nitride ceramics ,si3n4 silicon nitride ceramics ,automotive engines silicon nitride si3n4 | ||
This product is a silicon nitride ceramic I-beam guide rail manufactured using hot pressing sintering technology, featuring a uniform dark gray matte texture with a precision ground surface. The product adopts an innovative I-beam symmetrical structure, combining an elongated main body with vertical rectangular protrusions at both ends and the middle to form a stable three-support point structure. This design ensures sufficient structural strength while achieving precise guide positioning functionality, making it particularly suitable for high-precision automated equipment applications.
• High-Temperature Equipment: Heat treatment furnace conveying guide rails, sintering furnace bearing tracks
 • Precision Machinery: CNC machine tool linear guide rails, precision measuring instrument guide components
 • Automated Equipment: Robotic arm positioning tracks, automated production line conveying guide rails
 • Semiconductor Manufacturing: Wafer transfer guide rails, vacuum equipment guide components
 • Special Equipment: High-temperature spraying equipment guide rails, laser processing machine guide mechanisms
→ Ultra-high Structural Strength: Compressive strength ≥2400 MPa, flexural strength ≥720 MPa
 → Exceptional Wear Resistance: Vickers hardness ≥1580 HV, wear life 8 times longer than alloy guide rails
 → Excellent Thermal Stability: Continuous operating temperature -60℃~1380℃
 → Low Friction Coefficient: Dynamic friction coefficient ≤0.15, no additional lubrication required
 → Precise Dimensional Stability: Thermal expansion coefficient 3.1×10⁻⁶/℃, ensuring high-temperature accuracy
| Performance Indicator | Technical Parameter | 
|---|---|
| Material Composition | Si₃N₄ ≥97.2% | 
| Surface Treatment | Precision Grinding (Ra=0.4-0.6 μm) | 
| Bulk Density | 3.27 g/cm³ | 
| Straightness | ≤0.01 mm/100 mm | 
| Flatness | ≤0.008 mm | 
| Operating Temperature | -60℃~1380℃ | 
| Thermal Expansion Coefficient | 3.1×10⁻⁶/℃ | 
| Fracture Toughness | 7.8 MPa·m¹/² | 
Ultra-fine powder formulation → Hot pressing casting → Vacuum debinding → Hot pressing sintering → Three-dimensional rough grinding → Precision guide rail grinding → End face precision machining → Ultrasonic cleaning → CMM inspection → Anti-vibration packaging
Use precision level during installation to ensure straightness ≤0.02 mm/m
Recommended fit clearance 0.03-0.08 mm, avoid tight fits
Reserve thermal expansion clearance when used in high-temperature environments
Regularly clean guide rail surface, recommend checking wear every 500 hours
Avoid impact loads, ensure even force distribution
• 24-month quality assurance period
 • Complimentary installation and debugging guidance
 • Support for custom size services
 • Provision of on-site technical support
 • Lifetime maintenance services
Q: What are the advantages of the I-beam structure?
 A: The I-beam structure achieves lightweight while ensuring rigidity, with three-support point design enhancing stability
Q: How is product straightness guaranteed?
 A: Using precision guide rail grinding machines, straightness can reach 0.01 mm/100 mm
Q: Is dimensional stability maintained in high-temperature environments?
 A: Testing shows dimensional change rate <0.015% after 500 hours at 1000℃
Q: What is the maximum processable length?
 A: Currently maximum processable I-beam guide rail length is 1200 mm
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Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter 
Total Annual:
>1000000
Employee Number:
>100 
Ecer Certification:
Verified Supplier 
We are a company with many years of experience in the production of special precision ceramics and the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. Deyu Precision Ceramics Technology Co., Ltd. has many years of e... We are a company with many years of experience in the production of special precision ceramics and the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. Deyu Precision Ceramics Technology Co., Ltd. has many years of e...
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