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Lianyungang Zhong Ao Aluminium Co., Ltd.

Alumina cramic electrical isolator, alumina ceramic electrical breaks, alumina ceramic electrical envelope manufacturer / supplier in China, offering Alumina Ceramic Electrical Isolator, Small Alumina Grinding Bead 1mm, Polishing Alumina Powder (TCH-61) and so on.

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Supplier Homepage Product Insulation Ceramic Alumina Ceramic Electrical Isolator

Alumina Ceramic Electrical Isolator

FOB Price: Get Latest Price
Min. Order: 1,000 Pieces
Production Capacity: 100000 PCS/Month
Transport Package: Export Standard Wooden Boxes
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: ZALY
  • Type: Insulation Sleeve
  • Material: Ceramic
  • Alumina Content: 90%-99%
  • Raw Material Origin: Australia
  • Voltages: Up to 75 kV DC
  • Origin: Lianyungang, Jiangsu, China
  • Application: Insulators
  • Chemistry: Inorganic Insulation
  • Maximum Voltage: 10KV~20KV
  • Certificates: SGS, ISO
  • Customized Service: Available
  • Trademark: ZALY
  • HS Code: 6901000000
Product Description
Brief Introduction:
Electrical isolators, sometimes referred to as "breaks" or "envelopes", consist of metal sleeves brazed to each end of an insulating ceramic tube. Cryogenic isolators are used to introduce cryogenic fluids into a system and to provide electrical isolation of line components. Water isolators are used to introduce water or other fluids into a system and to provide electrical isolation of line components. Vacuum isolators are used to provide an electrical break between the vacuum system and other external components.

Semiconductor processing equipment;
Particle accelerators;
Analysis equipment;
Beam line tubes;

1) ZALY alumina ceramic isolators are made from high-purity alumina ceramics (90% or better);
2) ZALY uses advanced techniques and methods to control and monitor critical processes;
3) ZALY provides custom designs.

Standard Specifications:
1) Voltages up to 75 kV DC;
2) Bakeable up to 450°C;
3) Operating temperatures from -269°C to 350°C;
4) Isolator IDs up to 8";
5) Internal pressure 1x10-10 torr up to 69 bar (1,000 psig).
 Table1:Technical Parameter Of Alumina Ceramics
Item  Test condition Unit&Symbol  95% 
Alumina Ceramics
Alumina Ceramics
Alumina Ceramics
The Main 
Chemical Ingredient
    Al2O3 Al2O3 Al2O3
Bulk Density   g/cm³ >3.6 3.89 3.96
Maximum Use Temperature   ºC 1450 1600 1650
Water Absorption   % 0 0 0
ROHS Hardness     ≥85 ≥ 89 ≥89
Flexural Strength 20 ºC Mpa(psi*10³) 358(52) 550 550
Compressive Strength 20 ºC Mpa(psi*10³) 2068(300) 2600(377) 2600(377)
 Fracture Toughness K(lc) Mpa m1/2 4-5 5.6 6
 Coefficient Of Thermal Expansion 25-1000 ºC 1*10-6/ºC 7.6 7.9 8.2
 Coefficient Of Thermal Conductivity 20 ºC W/mk 16 30.0 30.4
 Thermal Shock Resistance ΔTc ºC 250 200 200
 Dielectricity Constant 1MHz.25 ºC   9 9.7 9.7
 Dielectricity Strength   ac-kV/mm(ac V/mil) 8.3(210) 8.7(220) 8.7(220)
 Volumn Resistivity 100 ºC ohm-cm >1013 >1014 >1014
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