Custom-Made
Phenolic Resin CNC Parts for Aerospace & Energy
High-Performance Phenolic Resin Components – CNC Machined to Precision
Designed for insulation, durability, and thermal resistance in critical environments.
Flame-retardant, electrically insulating parts – Direct from the Manufacturer.
Why Choose Our Phenolic Resin Parts?
• Heat & Electrical Resistant:
Performs in high-temp and high-voltage conditions.
• Precision Machined:
±0.1mm tolerance supported for all custom shapes.
• Flame-Retardant:
UL94 V-0 certified for demanding aerospace use.
• Fast Lead Time:
Prototyping in 5–7 days, mass orders ship quickly.
• Low MOQ Support:
One-off custom parts and small batches welcome.
• Trusted by Engineers:
Used in aerospace, railway, and energy industries.
Phenolic Resin Tubes & Parts
Phenolic Resin Components We Offer
“Phenolic Resin Components Options” Describe the various products or categories, such as:
Phenolic Resin Tubes
Phenolic fabric tubes (also known as bakelite tubes or fabric-reinforced phenolic bushings) are manufactured by hot-rolling coarse or fine cotton fabric impregnated with phenolic resin.
These components offer excellent electrical insulation, high wear resistance, and outstanding mechanical strength.
They are ideal for custom-machined parts such as bushings, washers, and structural insulators.
Key features:
✅ Compatible with CNC machining, carving, and trimming
✅ Customizable diameters available through mold development
✅ Reliable performance in humid and oil-filled environments
✅ Flame-retardant and long-lasting for industrial applications
3240 Epoxy Resin Boards and Parts are made from fiberglass cloth impregnated with epoxy resin, then hot-pressed and cured. They offer excellent mechanical strength, dielectric performance, and heat resistance. Ideal for electrical insulation parts, especially in humid environments or transformer oil.
Highlights：
✅ Made from alkali-free fiberglass cloth impregnated with epoxy resin
✅ Excellent mechanical strength and dielectric performance
✅ Smooth surface with no bubbles, oil stains, or impurities
✅ Stable under high temperatures and transformer oil environments
✅ Available in a wide range of thicknesses and board sizes
✅ Supports CNC machining, drilling, trimming, and engraving
✅ Easy installation and long service life
Technical Properties:
FR4 / G10 Epoxy Rods and Insulation Fasteners
Highlights：
✅ G10 / FR4 epoxy grade
✅ CNC machined into bolts, nuts, and fasteners
✅ Flame-retardant, acid- and oil-resistant
✅ Stable dielectric performance
✅ Smooth surface without air bubbles or contaminants
✅ Customizable diameters and lengths
✅ Long service life in harsh conditions
FR4 Epoxy Insulation Rods and Bolts are manufactured by pultruding fiberglass filaments impregnated with epoxy resin under high temperature and vacuum-controlled extrusion. These rods offer excellent dielectric properties, high mechanical strength, and smooth surfaces free from bubbles, oil, or impurities.
Available in multiple diameters (⌀6mm–⌀170mm), shapes (round, hex, square), and customizable lengths. Ideal for electrical insulation structures exposed to heat, humidity, and transformer oil.
FR-4 Fiberglass Epoxy Board – Custom Insulation Panels
Product Features：
Stable electrical insulation performance
Excellent flatness and smooth surface with no pits or dents
Flame-retardant, heat-resistant, and environmentally friendly
Sound-absorbing and thermal-insulating properties
Suitable for high-performance electrical and electronic insulation
Applications:
FR-4 fiberglass boards are widely used in:
FPC stiffeners and soldering-resistant carriers
PCB testing fixtures and precision gear plates
Electrical device insulation sheets and transformer parts
Motor insulation components and deflection coil terminal plates
Switch insulation boards and customized structural parts
Available Options:
Size: Customizable per request
Color: Standard water green
Thickness: Multiple options available
Real Samples — Machined from Phenolic Plates & Tubes
Phenolic Resin Machining Gallery
Quote in 24 Hours. Parts Ready to Ship in 7 Days.
Phenolic resin tube
Phenolic resin tube
Phenolic resin tube parts
Epoxy Resin Parts
Phenolic Resin Board
FR4 Glass Fiberglass board
FR4 Fiberglass board
Epoxy Resin Board
FR4 Glass Fiberglass Panel Green
Natural PPS Sheets & Rods – CNC Machined, GF40 Reinforced
Custom Phenolic Tube Sizes Available
Some steps to produce
Phenolic Resin Part Manufacturing Process
A fast, traceable workflow for CNC-machined insulation components.
01
Material Selection
Select high-quality phenolic sheets or laminated tubes according to application.
02
Rough Cutting
Raw boards or rods are cut into manageable blanks for further processing.
03
Surface Planning
Ensure flatness or roundness before CNC machining for better accuracy.
04
CNC Programming
Import CAD drawings and set machining parameters based on tolerances.
05
Precision Machining
Use CNC routers or mills for drilling, slotting, contour shaping, and turning.
06
Chamfering & Deburring
Edge polishing and chamfering to avoid sharp edges or fiber burrs.
07
Dimensional Inspection
Check critical dimensions using calipers or 3D probes; tolerance ±0.1mm.
08
Surface Cleaning
Remove cutting dust and apply optional anti-humidity coating.
09
Packaging & Shipment
Parts are labeled, packed by batch, and dispatched within 7 days.
Custom Phenolic Resin Part Process
Quotes in 24 Hours. Prototypes in 7 Days.
Precision machining + fast delivery = efficient development for your engineering projects.
showing our commitment to speed, accuracy, and industrial-grade quality for phenolic insulation components.
A. Application Requirements:
Define working temperature, dielectric strength, or arc resistance based on use case (e.g., switchgear, aerospace, or rail systems).
B. Part Geometry:
Choose between plates, tubes, bushings, or blocks. Specify dimensions and wall thicknesses to match design.
C. Machining Type:
Drilling, slotting, surface routing, or full 3D CNC milling to meet part function and mounting needs.
D: Material Grade:
Select phenolic types like paper-based, fabric-based, or glass-filled based on insulation and strength needs.
E. Manufacturing Process:
All parts are machined from laminated phenolic stock. CNC processed with tight tolerances.
F. Surface Finish & Coating:
Edges chamfered or polished. Optional anti-moisture coating or sanding available.
G. Customization:
Add mounting holes, grooves, or notches based on drawing. Labeling and serial batch optional.
H. Quality Assurance:
Each batch checked for tolerance, flatness, and edge quality. Inspection report can be provided upon request.
Machining Service
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