Macor Machinable Glass Ceramic Rod Shaft Bar for Vacuum Use

• Customization: Available
• Application: Aerospace, Architectural, Electronics
• Chemical Resistance: Acid and Alkali Resistant
• Model NO.: HKK48
• Thermal Expansion Coefficient: High Expansion
• Transparency: Opaque
• Type: Ceramic Rod
• Name: Machinable Glass Ceramic Rod
• Size: Customized Is Ok
• Color: White
• Tolerance: Client's Request
• CNC: Yes
• Keyword1: Glass Ceramic
• Keyword2: Glass Ceramic Rod
• Keyword3: Machinable Glass Ceramic Rod
• Feature: Long Time Materials
• Density: 2.60g/cm3
• Temperature: 800
• Water Absorption: 0
• Young's Modulus: 65gpa
• Thermal Conductivity: 1.7W/(Mk)
• Transport Package: Safe Package, Export Carton with Foam
• Specification: standard or customized
• Trademark: OEM
• Origin: Lianyungang, Jiangsu
• HS Code: 8547100000
• Production Capacity: 8000PCS/Month
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 0.500kg

Product Description

Product Description

Machinable Glass Ceramic rod

Machinable Glass Ceramic rod has a continuous use temperature of 800°C and a peak temperature of 1000°C. Its coefficient of thermal expansion readily matches most metals and sealing glasses. It is non-wetting and unlike ductile materials, won't deform. It is an excellent insulator at high voltages, various frequencies and high temperatures. And, when properly baked out, it won't outgas in vacuum environments.

Property of Machinable Glass Ceramics

1. MGC can be machined with ordinary metal working tools and there is not need for post firing - meaning fast turnaround

2. It has a continuous use temperature of 800 C and the the max. Is up to 1000 C.

3. MGC has low thermal conductivity, it is a exellent temperature insulator.

4. MGC has no porosity and will not outgas when properly baked. It is widely used in ultra high vacuum applications.

5. MGC has high electric insulativity and it is used extensively throughout the semiconductor and electronic industries.

6. MGC has radiation resistant and plays a key role in nuclear applications and nuclear-related research and development.

7. MGC is unlike high temperature plastics, it will not creep or deform.

8. MGC can be thick or thin film metallized, brazed, epoxy and frit bonded.

Macor ceramic rod Application

·Electrical insulation – high-voltage components, spark plug insulators, heater bases.

·Thermal protection – furnace fixtures, brazing jigs, heat shields.

·Mechanical parts – wear-resistant bushings, bearings, seal rings, pump pistons.

·Chemical resistance – acid/alkali pump liners, valve seats, laboratory tools.

·Precision fixtures – semiconductor wafer handlers, vacuum chucks, measuring instrument supports.

·High-frequency electronics – antenna radomes, microwave windows, capacitor cores.

Technical Specifications

(Custom configurations available upon request.)

Property Content	Property Index	Instruction
Density	2.6g/cm3
Apparent Porosity	0.069%
Water Absorption	0
Hardness	4~5	Mohs
Color	White
Coefficient of Thermal Expansion	72×10-7/°C	-50°C to 200°C average
Thermal Conductivity	1.71W/m.k	25°C
Long Working Temperature	800°C
Flexural Strength	>108MPa
Compression Strength	>508MPa
Impact Toughness	>2.56KJ/ m2
Modulus of Elasticity	65GPa	Room Temperature
Dielectric Loss	1~4×10-3
Dielectric Constant	6~7
Puncture Strength	>40KV/mm	Sample Thickness 1mm
Volume Resistance	1.08×1016Ω.cm	25°C
	1.5×1012Ω.cm	200°C
	1.1×109Ω.cm	500°C
Normal Temperature Gas Efficiency	8.8×10-9ml/s.cm2	Vacuum Burn-in 8 hours
	1×10-10ml/s	500°C firing, cooling
5%HC1	0.26mg/ cm2	95°C,24hours
5%HF	83mg/ cm2
50%Na2CO3	0.012 mg/ cm2
5%NaOH	0.85mg/ cm2

You May Like

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.