Customized Aluminium Nitride Rod Aln Ceramic Shaft

Product Description

Product Description

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Aluminum nitride ceramic (short name: AlN ceramic) is a high-performance inorganic non-metallic material synthesized from aluminum nitride powder (chemical formula: AlN). It is sintered under high-temperature nitrogen atmosphere to form dense polycrystalline ceramic blanks, then processed into substrates, tubes, rings, rods and other precision structural parts.

 Excellent Thermal Performance

Ultra-high thermal conductivity (170–230 W/m·K) 

Rapid uniform heat transfer, avoids local overheating on rotating or heating working ends; far better heat dissipation than alumina shafts.

Low matched CTE (4.5–5.6×10^-6/K) 
Small thermal expansion deformation under temperature rise, ensures rotational concentricity and precision at high working temperatures.

Outstanding thermal shock resistance 
Withstand rapid heating and cooling cycles without cracking, suitable for thermal cycling test equipment.

Temperature resistance 
≤900℃ continuous use in air; up to 1800℃ in vacuum/nitrogen inert environment.

Main Application Fields

Semiconductor wafer processing equipment
Rotating support shafts inside etching, PVD/CVD chambers
Spindle shafts for wafer transfer, thermal test rotary fixtures
Insulated rotating feedthrough central shafts for vacuum equipment
High-power laser & optoelectronic equipment

Rotary positioning shafts for laser crystal heating holders
Rotating heat dissipation mandrels for high-power UV LED production lines
New energy power electronics testing equipment
Rotating insulation shafts for SiC/GaN chip thermal cycling test stations
High-voltage rotating central shafts of high-frequency induction heating machines
RF & millimeter-wave communication components
Low-loss dielectric rotating shafts for 5G/6G radar T/R modules and microwave rotary joints

High-temperature industrial furnaces & testing instruments
Rotary transmission shafts for high-purity material sintering furnaces
Thermocouple rotating protection mandrels for thermal analysis instruments

Technical Specifications

(Custom configurations available upon request.)

Property Content	Unit	Property Index
Density	g/cm3	≥3.30g/cm3
Water absorption	%	0
Thermal conductivity	(20 ºC,W/m.k)	≥170
Linear expansion coefficient	(RT-400ºC,10-6)	4.4
Flexural strength	Mpa	≥330
Bulk resistance	Ω.cm	≥1014
Dielectric constant	1 MHz	9.0
Dissipation factor	1 MHz	3 x 10-4
Dielectric strength	KV/mm	≥15
Surface roughness	Ra(μm)	0.3~0.5
Camber	(~25.4(length))	0.03~0.05
Appearance	--	Dense

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Strict Quality System & Digital Certification

Strict Full-process QC & Complete Verified Certifications

We adopt standardized ISO 9001:2015 and IATF 16949 quality management systems with full-process inspection from raw materials incoming, production processing to finished product delivery. We have obtained a full range of international certifications including RoHS, CE, EMC, LVD, FDA, MSDS, SGS and TUV, and own 8 registered trademarks and 40 technical patents as our core intellectual property.

ISO9001:2015 Quality Management System

CE Certification — European Safety Standard

RoHS Certification — EU Restriction of Hazardous Substances Standard

Period of validity:
from2024.10.17 to 2027.10.25
Full-process standardized production quality control system.

Certificate No. CTA-01-2005-008
 (Original certificate available)
Complies with EU mandatory safety, health and environmental protection standards.

Certificate No. LTR20260427010
Date:MAY .08.2026

Packaging & Shipping

Reliable Fragile Product Packaging & Comprehensive Shipping Protection

Targeting the fragile, high-precision characteristics of industrial ceramic and quartz products, we adopt standardized export-grade shockproof packaging and professional global transportation solutions. Finished products go through independent wrapping, anti-collision foam filling and thickened carton or wooden box reinforcement, greatly reducing the risk of breakage, scratch and deformation during transit. We support customized brand packaging, exclusive shipping marks and standardized export packaging standards, and adapt to multiple transportation modes including sea freight, air freight and international express. With mature logistics docking experience and full-link cargo protection measures, we aim to improve the safety and integrity of product delivery for global industrial customers.

R&D Strength & Mature Project Experience

Independent R&D Innovation + Verified Similar Overseas Project Cases

We have independent professional R&D teams and laboratories capable of continuous innovation, structural optimization and process improvement, to develop customized products tailored to international market needs. Our products are exported to more than 130 countries, and we have established cooperative partnerships with over 100 well-known domestic and foreign universities. We have also maintained successful cooperation with Fortune 500 enterprises.
We boast extensive overseas project experience and have long provided services to worldwide clients covering similar target markets, customer groups and product specifications. Our well-established, replicable project cases comply with major international standards.

Stable Capacity & Fair Pricing

Sufficient & Stable Output Capacity + Standardized              Market-oriented Quotation

Equipped with modern standardized workshops and automatic production equipment, we maintain stable daily, monthly and annual output, capable of handling large-batch, continuous and urgent global orders. We offer transparent, standardized and efficient quotations aligned with prevailing average global market prices. Factory direct sales deliver favorable cost performance with regulated pricing, facilitating long-term stable cooperation on bulk orders.

Full-Cycle Service & Long-Term Trusted Partner

One-stop Full-lifecycle Export Service + Sustainable & Stable Enterprise Operation

As an established, stable export manufacturer with comprehensive enterprise qualifications and worldwide market recognition, we are not makeshift processing workshops and able to deliver sustainable, steady product supply and technical support. We offer one-stop full-lifecycle export services covering pre-sales customization, order progress tracking and professional after-sales maintenance and warranty. Our responsive multilingual service team strives to deliver seamless cooperation with clients.

FAQ

Q1: Can you provide exclusive customized solutions for special project demands? 
A1: Yes. In addition to conventional OEM and ODM customization, we can develop exclusive product structures, adjust technical parameters and optimize solutions according to special project standards, regional industry specifications and personalized buyer requirements, providing one-to-one customized technical support.
 
Q2: Do you support third-party factory inspection and product random testing? 
A2: We support on-site factory audit and offline random inspection by buyers or authoritative third-party institutions. Our standardized production process, complete quality records and standardized management system can comply with mainstream international factory inspection standards.
 
Q3: How do you ensure on-time delivery for bulk orders? 
A3: We have a scientific production scheduling system and sufficient material reserve chain. According to order quantity and delivery cycle, we will formulate a detailed production plan, arrange special personnel to track progress in real time, and effectively avoid delivery delays to ensure stable and punctual shipment of bulk and urgent orders.
 
Q4: Why is your factory price more stable than trading companies? 
A4: As a direct manufacturer, we control all links from raw material procurement, production processing to finished product output. There is no intermediate markup, and we can adjust costs according to long-term cooperative orders, maintaining stable and transparent pricing for long-term strategic partners.
 
Q5: What customized service items can you support besides product structure? 
A5: Besides structural size and precision tolerance customization of industrial ceramic and quartz products, we support personalized services including custom deep processing, surface treatment, laser marking, custom packaging and technical document customization to meet different industrial and brand standards.