◆ 8 Photos

1 / 8

Machined mica parts - precision CNC-cut custom insulation components

Mica gasket custom-machined for motor housing insulation

Mica transformer winding separators precision-ground to ±0.02mm

CNC turning of mica rod for precision insulation components

Laser-engraved mica part with complex pattern for HV switchgear

3D-formed mica component for industrial furnace door insulation

Automatic stamped mica parts for EV battery thermal barriers

Quality inspection of machined mica parts ready for export

◆ CNC Precision Machining

Machined Mica Parts — Precision Custom Insulation Components

Name: Machined Mica Parts
Brand: SZX New Materials
Availability: InStock

High-precision custom mica components engineered for the most demanding industrial challenges. Whether extreme electrical stress or continuous 1000°C high temperature, our mica parts deliver exceptional physical stability and insulation performance. CNC turning, laser cutting, 3D forming, automatic stamping — all to your exact drawings.

15–40kV/mm

Dielectric Strength

1000°C

Continuous Temp

±0.02mm

Precision Tolerance

Request Quote → 💬 WhatsApp Inquiry

Product Deep Dive

What Are Machined Mica Parts?

Machined mica parts are custom-engineered insulation components produced by cutting, drilling, stamping, grinding, and shaping mica-based materials (muscovite, phlogopite, or synthetic mica) into precise geometries for specific industrial applications. They combine the inherent properties of mica — exceptional dielectric strength, flame retardancy, and continuous high-temperature stability — with the dimensional precision of CNC manufacturing.

At SZX New Materials, we machine mica parts using high-precision CNC turning centers, laser engraving machines, 3D forming equipment, and fully automatic stamping lines. Our standard tolerance is ±0.1mm, with precision-grade ±0.02mm available for critical applications. Surface finish options include smooth (Ra ≤0.8μm) and textured for enhanced bonding.

Every batch is tested in-house for dielectric strength, dimensional accuracy, and surface quality. We serve customers in the electric motor, transformer, HV switchgear, industrial furnace, EV battery, and aerospace industries — including co-R&D design support and mold development for high-value specialty products.

Key Features

Why Engineers Specify Our Machined Mica Parts

Every part is machined to your drawing with tight tolerance control, verified dielectric performance, and batch-level traceability.

◆ 01

Outstanding Electrical Insulation

Dielectric strength of 15-40 kV/mm — effectively prevents leakage from low-voltage systems to high-voltage transmission and distribution networks. Suitable for 1 kV to 110 kV applications.

◆ 02

Continuous 1000°C Temperature

Maintains physical stability and insulation performance under extreme electrical stress and continuous operating temperatures up to 1000°C (synthetic grade). No thermal degradation over long service life.

◆ 03

Mechanical Durability

Lightweight yet exceptionally rigid — resists deformation caused by mechanical stress and vibration. Suitable for long-term use in motor rotors, transformer cores, and heavy machinery assemblies.

◆ 04

UL94 V-0 Flame Retardant

Fully compliant with UL94 V-0 flame retardancy standards — non-combustible with no toxic smoke emission. Safe for enclosed equipment, EV battery packs, and regulated environments.

◆ 05

Precision Tolerance ±0.02mm

Standard tolerance ±0.1mm, precision grade ±0.02mm (with precision grinding). Surface finish options: smooth (Ra ≤0.8μm) for low friction, or textured for enhanced bonding.

◆ 06

Multi-Process Manufacturing

High-precision CNC turning centers, laser engraving, 3D forming, and fully automatic stamping — adapting to complex designs in electrical and mechanical equipment. Co-R&D design support available.

Material Grades

Three Mica Material Grades by Temperature Class

Choose the mica material that matches your operating temperature. We machine all three grades using the same precision processes.

Muscovite (White)

◆ 400–600 °C

Natural white muscovite mica for moderate-temperature applications. Economical choice for general electrical equipment insulation, motor gaskets, and low-voltage isolation components.

Phlogopite (Gold)

◆ 600–800 °C

Natural gold phlogopite mica for high-temperature industrial applications. Premium choice for industrial furnaces, HV transformers, heating elements, and engine bay insulation components.

Synthetic (Fluorophlogopite)

◆ >1000 °C

Lab-synthesized ultra-pure fluorophlogopite for extreme environments. For EV battery thermal runaway protection, aerospace engine bays, and critical HV switchgear. Custom production on request.

Request Quote →

Technical Specifications

◆ Machined Mica Parts · Rev. 2025

◆ Certified

Parameter	Specification Details
Material Type	Muscovite (White): 400–600 °C Phlogopite (Gold): 600–800 °C Synthetic: >1000 °C
Dimension Range	Length / Width: 5 mm – 500 mm Thickness: 0.1 mm – 10 mm
Machining Tolerance	Standard: ±0.1 mm Precision Grade: ±0.02 mm (with precision grinding)
Surface Finish	Smooth Finish: Ra ≤ 0.8 μm (low friction) Textured Finish: enhanced bonding for composite applications
Dielectric Strength	15 – 40 kV/mm (for 1 kV to 110 kV systems)
Flame Rating	UL 94 V-0 (non-combustible, no toxic fume emission)

Applications

Three Industries That Specify Our Machined Mica Parts

From motor gaskets to EV battery thermal barriers — wherever precision insulation components face extreme electrical stress and high temperatures.

⚡ Power & Distribution

Motor insulation gaskets, transformer winding separators, and high-voltage switchgear seals. Primarily used to prevent short circuits and ensure smooth rotation of shafts. Delivers reliable 15-40 kV/mm dielectric isolation across 1 kV to 110 kV power systems.

🏭 Industrial Furnaces & Heat Treatment

Furnace door thermal barriers and heating element support brackets. Protects metal components from high temperatures, extends equipment service life, and ensures safe operation. Continuous 1000°C tolerance critical for smelting, calcining, and metallurgy applications.

🚗 New Energy Vehicles & Aerospace

Battery pack thermal runaway protection, exhaust system insulation, and engine bay insulation components. Must withstand extreme high temperatures and strong vibration. UL94 V-0 flame retardant certification mandatory for EV battery fire safety compliance.

🏗️ Custom Specialty Components

Co-R&D design support and mold development for high-value specialty products. Years of experience in manufacturing precision insulation components for OEM customers with complex geometries, tight tolerances, and stringent compliance requirements.

◆ Equipment Configuration

Manufacturing Equipment

High-precision large CNC turning centers, laser engraving machines, 3D forming equipment, fully automatic stamping lines — delivering volume production with micron-level consistency.

◆ Value-Added Services

Co-R&D & Mold Support

Collaborative R&D design consultation, mold development support, extensive experience in high-value-added specialty products. From CAD drawing to finished part, we partner on your project.