Products

DOWE MC A Series Mica Insulator for High-Speed Trains & Railway Applications

Mica ceramic insulators offer high-temperature resistance, superior insulation, and chemical stability, ideal for aerospace, energy, and industrial applications.

Model:
A
Operating Temperature:
300°C
Withstand Voltage Level:
10KV-16KV(1min)
Tensile Strength:
1.5KN-9KN
Screw:
M6/M8/M10
Material:
MICA
Torgue strength:
6N·m-30N·m

Mica ceramic insulators are high-performance, fully inorganic, non-metallic insulating components. By combining the durability of ceramics with the versatility of plastics, they offer several key advantages:

  • Exceptional Reliability & Longevity – Stable operation under various environmental conditions.
  • Flame-Resistant & High-Temperature Tolerance – Can withstand temperatures exceeding 300°C without combustion.
  • Superior Chemical Resistance – Excellent resistance to acid and alkali corrosion, ensuring long-term stability.
  • Outstanding Electrical & Mechanical Strength – High voltage resistance, strong insulation properties, and superior mechanical durability.
  • Low Dielectric Loss – Enhances efficiency and performance in electrical applications.

Applications

Due to their superior insulating properties and durability, mica ceramic insulators are widely used in:

  • Aerospace & Aviation – Reliable insulation in extreme conditions.
  • Chemical & Metallurgical Industries – Resistance to corrosive environments.
  • Machinery & Petroleum Sectors – High mechanical strength for industrial applications.
  • Energy & Transportation – Stable performance in power generation and electrical systems.
  • Electronics & Electrical Engineering – Ideal for high-voltage and precision insulation.

Classification of Mica Insulators

Mica insulators are categorized into five main series based on their structural features:

  • A Series – Both ends feature metal inserts in the form of studs.
  • B Series – Both ends have metal inserts with threaded holes.
  • C Series – One end has a stud, while the other has a threaded hole.
  • D Series – A single metal insert in the form of a stud at one end.
  • S Series – Helical-shaped design with threaded hole inserts at both ends.

Custom Non-Standard Solutions

In addition to standard models, we offer customized mica insulator solutions tailored to specific application needs. Our engineering team can design and manufacture non-standard insulators with customized:

  • Shapes and Dimensions – Adapting to unique installation requirements.
  • Metal Insert Configurations – Studs, threaded holes, or other specialized fittings.
  • Material Combinations – Optimized for high voltage, extreme temperatures, or specific environmental conditions.

With extensive experience in custom insulation solutions, we provide rapid prototyping, small-batch production, and large-scale manufacturing, ensuring high-quality, cost-effective, and reliable products for diverse industrial applications.

Contact us to discuss your custom mica insulator requirements!

H: Insulator height (mm)
D: Maximum insulator diameter (mm)
M×L: Stud size – M (stud diameter) × L (stud height) (mm)
m×d: Threaded hole size – m (hole diameter) × d (hole depth) (mm)

Type Dimension Electrical property Mechanical property Weight
Dimensions(mm) Dimension of inserts(mm) Arc-over vlotage
(KV)
Breakdown voltage
(KV)
Endure voltage
[KV(1min)]
Insulation resistance
(MΩ)
Tensile strength
(KN)
Compressive strength
(KN)
End flexural strength
(KN)
Torsion resistance
(N·m)
g
H D M1xL1 M2xL2
MC1825A1 18 25 6x6 6x6 12 15 10 106 1.5 12 0.35 6 25
MC2530A1 25 30 6x16 6x16 13 16 12 106 8 25 1.6 12 60
MC3535A1 35 35 8x28 8x12 18 20 16 106 9 35 1.6 12 110
MC3535A2 35 35 8x17 8x12 18 20 16 106 9 35 1.6 30 90
MC3535A3 35 35 6x12 6x8 18 20 16 106 9 35 1.6 30 90
MC3535A4 35 35 8x20 8x20 18 20 16 106 9 35 1.6 30 110
MC3535A5 35 35 8x24 8x24 18 20 16 106 9 35 1.6 30 110
MC3742A1 37 42 12x43 12x20 18 20 16 106 9 35 1.6 30 185
MC3742A2 37 42 10x35 10x23 18 20 16 106 9 35 1.6 30 170

Website Use Cookies

This website uses anonymous performance cookies to ensure you get the best experience on our website. We never use targeting or advertising cookies. Find out more: Cookies Policy