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Mica Machining Services | Custom Mica Parts & Fabrication
Mica Sheet Machining Services
Custom Mica Parts & Fabrication
Transform raw muscovite mica sheets and phlogopite mica boards into precision-engineered components for electrical insulation, thermal management, and high-temperature applications. From single prototypes to volume production — NO minimum order quantity.
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Precision Mica Sheet Machining & Custom Fabrication Services
BeePlastic delivers expert CNC machining and fabrication services for mica sheets, transforming raw mica materials into precision-engineered components for electrical insulation, thermal management, and high-temperature applications. Whether you need custom mica washers for transformers, thermal barriers for EV batteries, or insulation parts for industrial furnaces, our advanced machining capabilities ensure tight tolerances, clean edges, and consistent quality from prototype to production.
We work with all major mica types including muscovite mica sheets (white mica), phlogopite mica sheets (amber mica), rigid mica boards, and flexible mica sheets. Our engineering team understands the unique challenges of machining this layered mineral material—from preventing delamination to managing abrasive dust—and applies optimized cutting parameters and specialized tooling to deliver parts that meet your exact specifications.
Why Choose BeePlastic for Mica Machining?
- Precision Equipment: CNC milling, laser cutting, waterjet cutting, and die punching
- Material Range: Mica sheets from 0.1mm to 100mm thick
- No Minimum Order: From 1 prototype to 10,000+ production parts
- Fast Quotes: Detailed quotation within 8 hours
- Global Shipping: Free standard delivery to Europe, America, Australia
0.3mm - 100mm Thickness Available
Mica Sheet Materials We Machine
Understanding the right mica type for your application is essential for optimal performance. We machine all standard mica sheet materials with distinct thermal, electrical, and mechanical properties.
Muscovite Mica Sheet
Most PopularAlso known as white mica or potassium mica, muscovite offers exceptional dielectric strength and is the preferred choice for high-voltage electrical insulation applications.
Best For: Transformer insulation, capacitor dielectrics, motor slot liners, commutator segments, electronic component insulators
Phlogopite Mica Sheet
High TempAlso called amber mica or magnesium mica, phlogopite offers superior high-temperature performance up to 1000°C, ideal for extreme heat applications and asbestos replacement.
Best For: EV battery thermal barriers, induction furnace linings, high-temperature gaskets, aerospace thermal protection
Rigid Mica Board
StructuralAlso called mica plate or micanite board, consists of ~90% mica paper bonded with high-temperature silicone/epoxy resin. Ideal for structural insulation requiring mechanical strength.
Best For: Structural insulation, heat shields, furnace barriers, thick thermal plates, complex CNC machined parts
Flexible Mica Sheet
BendableManufactured with softer resin formulation allowing the material to bend without cracking. Can be punched, folded, and formed into complex shapes at room temperature.
Best For: Gaskets, seals, wrapping materials, insulation mats, exhaust systems, furnace linings
Need Custom Mica Parts? Get Your Free Quote Today!
Upload your drawings and receive detailed pricing within 8 hours. No minimum order quantity.
CNC Machining Capabilities for Mica Sheets
Mica presents unique machining challenges due to its layered crystalline structure. The material is abrasive, brittle, and prone to delamination. Our processes are specifically optimized using carbide and diamond-coated tooling, controlled feed rates, and specialized dust extraction.
🔧 CNC Milling & Routing
Our multi-axis CNC milling centers transform rigid mica sheets into complex components with tight tolerances of ±0.03mm.
- Thickness greater than 2.0mm
- Complex pocket features & contours
- Drilled and tapped holes
- Small to medium batch quantities
⚡ Laser Cutting
Laser cutting offers exceptional precision for thin mica sheets with clean, burr-free edges. CO2 lasers vaporize material along the cut path with minimal dust.
- Ideal for 0.3mm - 3.0mm thickness
- Complex shapes & tight curves
- Prototypes & small batches
- Tolerance: ±0.05mm
💧 Waterjet Cutting
High-pressure water mixed with abrasive media cuts mica sheets without introducing heat stress. This cold-cutting process preserves full dielectric and mechanical properties.
- Thick mica boards up to 50mm
- No heat-affected zone
- Large-format parts
- Tolerance: ±0.1mm
📏 Die Cutting & Stamping
For high-volume production of mica gaskets, washers, and simple geometries, die cutting with steel-rule or precision punch dies offers the most cost-effective solution.
- Best for 0.3mm - 2.0mm thickness
- Simple shapes (washers, gaskets, discs)
- Production quantities 500+ pieces
- Custom dies available
🔩 Precision Drilling & Secondary Operations
We also provide comprehensive secondary operations for mica parts including precision drilling, countersinking, threading, grinding, and edge finishing. Our downcut tooling and optimized spindle speeds prevent surface chipping and edge delamination common with improper machining parameters.
Related services: CNC Turning | Polishing & Sandblasting | Cut to Size
Mica Sheet Machining Tolerances & Process Selection
| Process | Tolerance | Thickness Range | Best For | Volume |
|---|---|---|---|---|
| CNC Machining | ±0.03mm | 2.0mm - 100mm | Complex parts, tight tolerances | 1 - 1,000 pcs |
| Laser Cutting | ±0.05mm | 0.3mm - 3.0mm | Intricate shapes, prototypes | 1 - 500 pcs |
| Waterjet Cutting | ±0.1mm | 1.0mm - 50mm | Thick boards, no heat stress | 1 - 500 pcs |
| Die Cutting | ±0.1mm | 0.3mm - 2.0mm | Simple shapes, high volume | 500+ pcs |
| Saw Cutting | ±0.5mm | 5.0mm - 100mm | Rough cuts, sheet sizing | Any |
Custom Mica Parts We Manufacture
Our fabrication capabilities extend to a comprehensive range of mica components serving electrical, thermal, and mechanical insulation needs across industries.
Mica Discs & Rings
Circular components for insulation barriers, viewing windows, and structural elements. Solid discs 5-300mm diameter, custom ID/OD rings, stove viewport windows.
Mica Plates & Thermal Barriers
Large-format mica plates for thermal management and fire protection. EV battery pack barriers, furnace panels, heat shields up to 1000×2400mm with cutouts.
Complex Machined Components
Beyond standard shapes: 3D formed covers, multi-feature parts with pockets and steps, components with threaded inserts, assemblies combining mica with other materials.
Complex CNC Machined Mica Components
Our multi-axis CNC capabilities enable production of intricate mica parts with holes, slots, pockets, chamfers, and custom profiles. We can machine mica boards up to 100mm thick into channels, brackets, housings, and structural insulation components.
Request Custom Part Quote →Industry Applications for Machined Mica Parts
Mica's unique combination of electrical insulation, thermal resistance, and mechanical stability makes it indispensable across numerous industries.
⚡ Electrical Equipment & Power
Largest MarketThe electrical industry represents the largest market for machined mica parts. High dielectric strength (up to 25 kV/mm) and thermal stability make mica essential for:
- Transformers: Insulation barriers, core separators, terminal insulation
- Motors & Generators: Slot liners, commutator insulation, field coil separators
- Switchgear: Arc barriers and phase separators
- Capacitors: Dielectric layers for high-voltage applications
🔋 EV Battery Systems
Fastest GrowingThe EV industry increasingly relies on mica for battery thermal management and fire protection. As battery energy density increases, so does thermal runaway risk:
- Thermal Runaway Barriers: Phlogopite mica between cells delays heat propagation
- Cell-to-Cell Insulation: Electrically isolate individual cells
- Module Protection: Prevent flame penetration to cabin
- Meets UN ECE GTR 20 five-minute safety standard
🏭 Industrial Heating & Furnaces
High-temperature industrial processes depend on mica insulation for equipment protection and energy efficiency:
- Induction Furnaces: Flexible phlogopite mica linings up to 1000°C
- Band & Strip Heaters: Nichrome wire support for plastic processing
- Heating Element Cards: Precision slots for resistance wire positioning
- Furnace Viewports: Transparent mica windows for monitoring
✈️ Aerospace & Consumer Products
Aerospace: Flight recorders, engine nacelle barriers, avionics protection, spacecraft thermal management.
Home Appliances: Hair dryers (heating element support), toasters & ovens (positioning plates), irons, microwave oven waveguide covers.
Mica Sheet Specifications & Technical Data
Comprehensive technical reference for mica material selection and machining specifications
📊 Mica Sheet Properties Comparison
| Property | Muscovite | Phlogopite |
|---|---|---|
| Continuous Temp | 500-700°C | 750-850°C |
| Peak Temperature | 800°C | 1000°C |
| Dielectric Strength | 20-25 kV/mm | 18-22 kV/mm |
| Volume Resistivity | >10¹⁴ Ω·cm | >10¹² Ω·cm |
| Dielectric Constant | 6-7 | 5-6 |
| Color | Silver-Gray | Amber/Brown |
📐 Standard Sizes & Thickness
Standard Sheet Sizes:
Thickness Range:
| Flexible Mica | 0.1mm - 2.0mm |
| Rigid Mica Board | 0.3mm - 100mm |
🔬 Phlogopite Mica Board Technical Data (Golden/Amber)
Our Mica Machining Process
A structured 5-step workflow ensures every custom mica part meets your specifications
Design Review
Submit CAD files (STEP, DXF, PDF). We review for manufacturability and recommend optimal mica type.
Fast Quotation
Receive detailed pricing within 8 hours. We select the most appropriate cutting method for your needs.
Prototype First
For new designs, we recommend prototypes to verify fit and function before full production.
Production & QC
Quality control inspects dimensions, edge quality, and surface condition. Inspection reports available.
Global Shipping
Careful packaging prevents breakage. Free standard shipping worldwide, express options available.
Why Choose BeePlastic for Mica Sheet Machining?
Combining precision equipment with deep material expertise
Precision Expertise
CNC tolerances of ±0.03mm that many mica suppliers cannot match. Specialized techniques prevent delamination and edge chipping.
No Minimum Order
From 1 prototype to 10,000+ production parts. Flexible manufacturing eliminates high MOQ barriers.
Complete Material Range
Stock of muscovite and phlogopite mica in multiple thicknesses. Custom formulations available on request.
Fast Turnaround
Standard parts ship in 5-7 business days. Rush service available with 2-3 day completion for urgent projects.
One-Stop Services
Beyond mica: 50+ plastic and composite materials including FR-4, Bakelite, PEEK, PTFE.
Global Support
Serving Europe, Americas, Australia. Free standard shipping to most destinations, express options available.
Frequently Asked Questions About Mica Machining
Can mica sheets be laser cut?
Yes, mica can be laser cut effectively, especially micanite (resin-bonded mica sheets). CO2 lasers produce clean, burr-free cuts on mica sheets up to approximately 3mm thick. For thicker materials, CNC machining or waterjet cutting produces better results. Natural mica's layered structure can cause edge irregularities, but manufactured micanite cuts very cleanly.
What tolerances can you achieve when machining mica?
With CNC machining, we achieve tolerances of ±0.03mm (±0.0012") on critical dimensions. Laser cutting provides ±0.05mm accuracy, while die cutting and waterjet cutting typically hold ±0.1mm. For applications requiring tighter tolerances, please discuss your requirements with our engineering team.
What is the difference between muscovite and phlogopite mica?
Muscovite mica offers higher dielectric strength (up to 25 kV/mm) and is more economical, making it the standard choice for electrical insulation up to 700°C. Phlogopite mica withstands higher temperatures (up to 1000°C) and offers better flexibility, making it preferred for furnace applications, EV battery barriers, and high-temperature gaskets.
How do you prevent mica from delaminating during machining?
Delamination is the primary challenge when machining mica. We use several techniques: downcut tooling that applies pressure toward the material surface, optimized feed rates that minimize cutting forces, rigid workholding that prevents flexing, and backing support for drilling operations. Our experience with mica allows us to select appropriate parameters for each job.
What file formats do you accept for custom mica parts?
We accept CAD files in STEP, STP, IGES, DXF, and DWG formats. PDF drawings with dimensions are also acceptable. For simple parts, you can provide a sketch with measurements, and our team will create the production files.
Can you machine thick mica boards?
Yes, we machine rigid mica boards up to 100mm thick using CNC milling and sawing. Thick mica requires slower feed rates and specialized tooling, but we can produce complex parts including drilled holes, pockets, and contoured surfaces in thick mica plates.
Do you provide material test reports for mica parts?
Yes, we can provide material data sheets and test reports upon request. Our mica materials have been tested for RoHS compliance by SGS (EU RoHS Directive 2011/65/EU). For applications requiring traceability, we maintain lot tracking throughout production.
What is the minimum order quantity for custom mica parts?
We have NO minimum order quantity. You can order a single prototype part or thousands of production components. Our pricing scales with quantity, with significant per-part savings available for larger orders.
Related Insulation Materials & Services
Explore our complete range of high-temperature and insulation material machining
Ready to Start Your Mica Machining Project?
Contact BeePlastic for expert fabrication services tailored to your specifications. Upload your drawings and receive detailed pricing within 8 hours.
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BeePlastic – Your Partner for Precision Mica Sheet Machining & Custom Insulation Components
Serving customers in Europe, North America, Australia, and worldwide with free standard shipping.
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NO MOQ REQUIRED
From 1 prototype to high volume
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