Quartz Crucible from China

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Loading Port:
China Main Port
Payment Terms:
TT or LC
Min Order Qty:
1 Piece pc
Supply Capability:
5000 Pieces per Month pc/month

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Product Description:

Quartz Crucible


1. using high purity quartz sand(SIO2≥99.99%)

2. coated inner layer with strict defect control(foreign inclusions, bubbles, bubble clusters, scratches/scuffs, structure faults, spikes, vapor clouds…)

3. high thermal performance(strong heat resistance, high transmission)

4. customization available(custom design according to drawings)

We are manufacturer capable of producing quartz crucibles of varied sizes ranging from 6 to 24 inches.


The standardized specifications of our quartz crucibles are as follows:






5.5 inch


5.5 inch±0.5mm


15 cm±2.0mm


6.0 mm±1.5mm


6 inch


6 inch±0.5mm


15 cm±2.0mm


6.0 mm±1.5mm


7 inch


7 inch±0.5mm


15 cm±2.0mm


6.0 mm±1.5mm


8 inch


8 inch±1.0mm


15 cm±2.0mm


5.0 mm±1.5mm


9 inch


9 inch±1.0mm


16 cm±3.0mm


5.0 mm±1.5mm


10 inch


10 inch±1.0mm


19 cm±3.0mm


6.0 mm±1.5mm


11 inch


11 inch±1.5mm


20 cm±3.0mm


6.0 mm±1.5mm


12 inch


12 inch±1.5mm


23 cm±3.0mm


6.5 mm±1.5mm


13 inch


13 inch±1.5mm


25 cm±3.0mm


6.5 mm±1.5mm


14 inch


14 inch±1.5mm


25 cm±3.0mm


6.5 mm±1.5mm


16 inch


16 inch±1.5mm


30 cm±3.0mm


7.0 mm±1.5mm


18 inch


18 inch±1.5mm


35 cm±3.0mm


7.0 mm±1.5mm


20 inch


20 inch±3.0mm


38 cm±3.0mm


7.5 mm±1.5mm


22 inch


22 inch±4.5mm


38 cm±3.0mm


7.5 mm±1.5mm


24 inch


24 inch±4.5mm


38 cm±3.0mm


7.5 mm±1.5mm

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Q:How many degrees can a quartz tube vacuum package be?
LTKC-5-12 vacuum tube furnace, quartz tube standard temperature resistance is 1200 degrees, programmable energy-saving tube furnace, LTKC-4-13 quartz furnace tube, temperature resistance can reach 1300 degrees
Q:The quartz tube that has just changed into the sterilizing cabinet will soon burn out. Why?
If it is easy to burn out, the position of the quartz tube can be replaced by the old tube, but the old tube position is not good soon. It must be the new quality problem. Perhaps manufacturers of sterilized cabinets use quality quartz tubes to improve the quality of the overall product, which makes it difficult to obtain good quality fittings.
Q:Can quartz tubes be used in a vacuum tube furnace of 1300 degrees?
LTKC-5-12 vacuum tube furnace, quartz tube standard temperature resistance is 1200 degrees, programmable energy-saving tube furnace, LTKC-4-13 quartz furnace tube, temperature resistance can reach 1300 degrees
Q:The difference between infrared heating tube and quartz heating tube
Use stainless steel heating tubes! The temperature is even. The quartz heating tube is heating up too fast. It's easy to bake the mobile phone cover.
Q:What are the differences between carbon tubes and halogen tubes?
Life: halogen tube is normal, more than 3000 hours life, there are more than 5000 hours.Carbon tubes are normal for more than 8000 hours and have more than 10000 hours of life. Radiation: halogen tubes bake for a long time, dry skin.Carbon tubes do not have this kind of image, and the light band is suitable for human skin.Light emitting / heating: halogen tube light is very bright, part of energy is converted into light energy, and part of it is converted into heat energy release.Carbon tube light is not bright, mainly the energy most of the conversion can heat.Therefore, the same power size of carbon tubes, heating is better than halogen tubes.
Q:The working principle of quartz glass heating tube
SH far infrared quartz heating element adopts our own production of quartz tube with electrothermal materials, so that the original with far infrared radiation characteristics: good and reliable electricity, electric materials from the infrared and visible light in 97% is blocked by the absorption of milky tube makes the temperature of tube wall high rise student silicon oxygen bond of molecular vibration far infrared radiation 97%, so that the visible light and near infrared light can be turned into the far infrared radiation. And effectively convert electric energy into far infrared ray.
Q:Will the heater explode?
Quartz glass tube is made of silica dioxide, special industrial technology glass, is a very good basic material. Quartz glass has a series of excellent physical and chemical properties. Be characterized by:1, high temperature resistance, quartz glass softening point temperature of about 1730 degrees Celsius, can be used at 1100 degrees for a long time, the shortest use temperature of up to 1450 degrees celsius,2, except hydrofluoric acid corrosion, quartz glass and other acids almost no chemical reaction, the acid resistance is 30 times 150 times of ceramic, stainless steel, especially the chemical stability at high temperatures, any other engineering materials are incomparable.3, good thermal stability of quartz glass thermal expansion coefficient is extremely small, can withstand the temperature changes, the quartz glass is heated to 1100 degrees Celsius, the water will not burst into the room.4, good light transmission performance of quartz glass in the ultraviolet to the infrared spectral band has good light transmittance, visible light transmittance is more than 93%, especially in the ultraviolet spectral region, the maximum transmittance is higher than 80.5, the electrical insulation performance is good, quartz glass resistance value is equivalent to ten thousand times of ordinary glass, is excellent electrical insulation material, even in high temperature, also has good electrical performance.
Q:What are the defect of the ceramic heater and quartz tube heating?
PTC heater is almost perfect, it has no other heater, thermal energy conversion rate is high, the insulation degree of Grade A, long service life, the most important also comes with constant temperature function, not dry or burned because of overheating protection device failure, PTC heater will automatically control the temperature in a certain range, do not let the temperature rising.
Q:Why import quartz tube (fused quartz tube) high accuracy, is the processing process there is a difference?
If you want the specification accuracy, the domestic also has done quite well, can you talk about the requirements?Must I import it?At present, photovoltaic, ah, semiconductor diffusion furnace and other domestic use can be the biggest difference is purity, domestic or not imported high purityI have imported Heraeus and Japan's price is domestic more than 2 times
Q:Mini small sun is the heating of electric heating or quartz tube heating better?
Personally think or electric heating faster. Just turn on the electricity
We are established by a team of senior engineers experienced in the processing of quartz glass, artificial crystal and mono-crystalline silicon products. We have rich technical force and utilizes first-class equipment. Having implemented a digital management system that extends to all production processes, we use inspection instruments that lead the domestic quartz glass industry. We have obtained the certification of ISO 9001:2000 and ISO 14001:2004

1. Manufacturer Overview

Location Liaoning,China
Year Established 2004
Annual Output Value US$2.5 Million - US$5 Million
Main Markets North America 10.00%
South America 20.00%
Eastern Europe 7.50%
Oceania 5.00%
Mid East 2.50%
Western Europe 5.00%
Domestic Market 50.00%
Company Certifications ISO 9001:2000;ISO 14001:2004

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Dalian,Tianjin
Export Percentage 61% - 70%
No.of Employees in Trade Department 6-10 People
Language Spoken: English, Chinese
b)Factory Information  
Factory Size: 5,000-10,000 square meters
No. of Production Lines 5
Contract Manufacturing OEM Service Offered
Product Price Range Average