CNC Machined Electrical Insulation Parts | Rigid Laminates Cut to Size

CNC Machined Electrical Insulation Components

Examples of CNC-machined rigid laminate components, with machinable grades grouped below by application.

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Electrical Insulation High Temperature & Thermal Arc & Switchgear High Temperature Electrical Mechanical & Structural Specialty Materials

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Typical Components

Common CNC-machined insulation parts

CNC-machined flat insulation plate from rigid laminate — Flat plate

CNC-machined circular insulation plate from laminate — Circular plate

Gear

CNC-machined insulation bushing for electrical assemblies — Bushing

CNC-machined insulation bushings and spacers — Spacers

CNC-machined insulation block with drilled features — Block

Select a Laminate Material for CNC Machining

Choose a material to view specifications, machining suitability, and request CNC-machined electrical insulation components supplied to drawing.

Electrical Insulation – General Purpose Laminates

Standard epoxy glass laminates used across motors, transformers and general electrical insulation where reliable dielectric performance is required.

Best for: General electrical insulation up to ~180°C across motors, transformers and switchgear.
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Pale green G10 epoxy rigid laminate sheet displayed against a light background, designed for electrical insulation in humid or chemically harsh industrial environments.

G10 Epoxy Mechanical strength and dielectric reliability for precision components

Green FR4/G11 epoxy rigid laminate sheet displayed on a pale background, used for high-performance electrical insulation in extreme industrial conditions.

FR4/G11 Epoxy Flame-retardant performance for switchgear and electrical panels

Fibreglass epoxy laminate sheet in natural tan colour for electrical insulation, suitable for CNC machining and high-temperature applications up to 210°C

Fibreglass Epoxy (SG-200 / ESP Glass) High-temperature electrical insulation and structural performance for industrial applications

High Temperature & Thermal Insulation Materials

Materials designed for elevated temperature environments including thermal barriers, furnace insulation and applications where heat resistance is critical.

Best for: High-temperature insulation and thermal barriers where heat resistance is the primary requirement.
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Cogetherm Mica P&M rigid laminate sheet for high-temperature electrical insulation, shown in grey with smooth texture, ideal for thermal and electrical resistance up to 500 °C

Cogetherm Mica P&M Extreme-temperature performance and thermal barrier applications

Glastherm HT high-temperature insulation board in cream fibreglass laminate for thermal insulation in moulds, presses and high-load industrial applications

Glastherm HT High-Temperature Insulation Board – High Compressive Strength Thermal Laminate

Grey NAD 11 high-temperature rigid laminate sheet for electrical insulation, engineered for use in extreme thermal environments up to 500°C. Suitable for switchgear, industrial machinery, and demanding electrical applications.

Nad-11 Extreme-temperature stability for demanding thermal environments

Sindanyo H91 insulation board sample – grey rigid thermal insulation material for high-temperature and electrical applications (700°C rated).

Sindanyo H91 Extreme-temperature thermal and structural performance up to 700 °C

Arc & Switchgear Insulation Materials

High-performance laminates used in switchboards, busbar supports and electrical panels where arc resistance and structural stability are required.

Best for: Switchgear and electrical applications where arc resistance, safety and mechanical strength are critical.
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Bright red GPO3 glass rigid laminate sheet displayed on a pale grey background, showing its smooth, fibreglass-reinforced surface ideal for electrical insulation applications.

GPO3 Glass Arc resistance and structural performance in switchgear systems

Close-up of a G9 melamine rigid laminate board in medium grey, square-cut and positioned flat against a pale background, showcasing its smooth surface and uniform texture for electrical insulation use.

G9 Melamine Dimensional stability and durability for industrial electrical assemblies

black type x switchpanel rigid laminate sheet for electrical insulation in switchboards and panels

Type X Switchpanel Rigid backing panels for switchboards and electrical enclosures

High Temperature Electrical Laminates

Used where standard epoxy glass laminates are no longer suitable, providing stable electrical insulation performance at elevated operating temperatures.

Best for: Electrical insulation applications operating above standard epoxy glass temperature limits where stability and performance must be maintained.
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Light neutral grey Nema G7 silicone glass laminate sheet with a soft matte finish and visible fibreglass reinforcement pattern, used for high-temperature electrical insulation applications

Nema G7 Silicone Glass Arc resistance and stability in high-temperature electrical systems

FR4/G11 Epoxy Flame-retardant performance for switchgear and electrical panels

Mechanical & Structural Laminates

Selected for strength, machinability and dimensional stability in structural applications and CNC machined components.

Best for: Structural and machined components where mechanical strength, rigidity and dimensional stability are the primary requirements.
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Densified wood insulation board with smooth reddish-brown finish, used for electrical insulation and structural support in transformers and switchgear applications

Densified Wood (Permalli) High-strength structural support and machinable insulation components

Yellow epoxy phenolic rigid laminate sheet displayed on a pale grey background, used for electrical insulation in high-performance industrial applications.

Epoxy Phenolic Balanced strength, heat resistance, and industrial durability

Dark reddish-brown F3 fabric rigid laminate sheet displayed against a pale grey background, showing its woven texture and uniform surface for electrical insulation applications.

F3 Fabric Impact-resistant performance for general industrial and switchgear use

Nad-11 Extreme-temperature stability for demanding thermal environments

Specialty Laminates for Specific Applications

Laminates used for vibration damping, legacy replacements and specialised industrial applications where standard materials are not suitable.

Best for: Specialised applications where standard laminates are not suitable, including vibration control, legacy replacements and unique design requirements.
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Close-up of black epoxy-bonded basalt laminate (EBF vibration material) with glossy surface, used for mechanical and electrical insulation.

EBF Vibration Material (Scotchply) Vibration damping and impact-resistant structural applications

Red fibre sheet vulcanised laminate for electrical insulation, machinable rigid sheet for switchgear, washers and gaskets

Red & Black Fibre Sheet Light-duty insulation and gasketing for low-voltage applications

Square sheet of P1 Paper rigid laminate in deep brown, used for electrical insulation in switchgear, transformers, and industrial equipment.

P1 Paper Cost-effective performance for low-voltage and general industrial use

Custom CNC Machined Insulation Components & Industrial Parts

ATS supplies precision CNC machined electrical insulation components manufactured from high-performance rigid laminate sheets, including G10 Epoxy, FR4 / G11, F3 Fabric, P1 Paper, Nema G7 Silicone Glass, and other specialist grades suited to CNC machining.

Typical applications include busbar insulation, switchboard components, transformer insulation, motor repair parts, and industrial electrical assemblies. Components are machined to tight tolerances for accurate fit, electrical separation, and long-term mechanical performance.

We work with OEMs, switchboard builders, and maintenance teams requiring CNC machining of electrical insulation materials—from one-off prototypes through to repeat production runs—supplied Australia-wide with reliable turnaround.

For sheet supply, cut panels, or material selection prior to machining, explore our Rigid Laminate Sheets collection.

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