Custom CNC FR4 G10 Fiberglass Insulation Fixture - Electrical Insulating Machined Part
Custom CNC Machined FR4 G10 Fiberglass Insulation Fixture Plate
| Item | Parameter |
|---|
| Processing Method | CNC Milling & Precision Drilling |
| Raw Material | FR4 / G10 Glass Epoxy Fiberglass Board |
| Surface Finish | Original textured material surface, deburred |
| Custom Service | OEM ODM, custom outline, hole layout, thickness |
| Application | Electrical test jig, insulation fixture, electronic equipment spacer |
Product Description
Many ordinary plastic fixtures fail under high-voltage working conditions, causing electric leakage, deformation under continuous temperature rise, and short service life.
Our CNC-machined FR4 G10 fiberglass fixture plate is manufactured from high-quality glass-epoxy laminate. It delivers excellent electrical insulation performance and stable physical properties at elevated temperatures. Custom-drilled precise hole arrays meet your positioning requirements. The textured surface improves anti-slip performance, making it an ideal replacement for poor-performing plastic jigs for electronic testing equipment.
Available Materials

Aluminum Material- 2024, 5052, 5083, 6061, 6061-T6, 6063, 6082, 7075, etc.
- Tolerance: +/-0.01~0.005mm
- Surface treatment: oxidation, electrophoresis, sandblasting, electroplating, chemical treatment, painting, hard anodizing, heat treatment, etc.
Stainless Steel/Steel Material- SUS303, SUS304, SS316, SS316L, 420, 430, 17-4PH, 1214L/1215/4140/SCM440/40CrMo, etc.
- Tolerance: +/-0.01~0.005mm
- Surface treatment: electroplating, galvanizing, spraying, oxidation, polishing, spray grinding, passivation, heat treatment, pickling, shot peening, etc.
Brass/Copper/Bronze Material- HPb63, HPb62, HPb61, HPb59, H59, H62, H63, H65, H68, H70, H80, H90, C110, C120, C220, C260, C280, C360 etc.
- Tolerance: +/-0.01~0.005mm
- Surface treatment: electroplating, tin plating, spraying, oxidation, polishing, spray grinding, heat treatment, pickling, shot peening, etc.
Plastic Material- Acetal/POM/PA/Nylon/PC/PMMA/PP/PVC/PU/HDPE/PVDF/Acrylic/ABS/PTFE/PEEK etc.
- Tolerance: +/-0.01-0.005mm
- Surface treatment: spraying, sandblasting, painting, pickling, alkali cleaning, anodizing, ion implantation, thermal transfer printing, engraving, etc.
Surface Treatment Options
Anodizing (various colors), hard anodizing, electrolytic polishing, chrome/nickel/zinc plating, PVD vacuum coating, wire drawing, sandblasting, laser engraving, screen printing, polishing, powder coating

Product Advantages
- Superior electrical insulation property, high dielectric strength, effectively prevents electric leakage risk for electronic test setups
- Good heat-resistance, low thermal expansion, will not warp under long-time working temperature
- Hard and rigid fiberglass material with outstanding dimensional stability, maintains shape after repeated usage
- Support for fully custom hole patterns, contours, and thickness with precise hole position tolerance
- Anti-static option available, suitable for sensitive electronic component processing environments
Please send your 2D / 3D drawings to us. Our engineering team will provide formal quotation and processing proposal within 24 hours. Sample orders are acceptable.
Quality Assurance
Each FR4 fiberglass fixture is fully inspected after CNC machining. We check hole position accuracy, remove burrs and sharp edges, and ensure no cracks or delamination on finished parts. We support after-sales service for manufacturing-related dimension defects.


Product Details


Packing & Shipping
Every CNC-machined part is carefully protected before shipment. We wrap each workpiece with anti-scratch protective film, then place it into shock-resistant foam padding to avoid surface scratches, collision damage, and dust contamination during transit. All items are packed in sturdy corrugated cardboard boxes. Custom-made inner foam is available for complex-shaped precision components. A packing list with product specifications is included inside each package for inspection.


We support multiple shipment options: DHL, FedEx, UPS for express small‑batch orders; sea freight and air freight for mass production. Shipping method can be selected according to your order volume and delivery schedule. All packages come with packing list for customs clearance.
Lead‑time depends on drawing confirmation, material availability and order quantity. We will advise estimated delivery date before order confirmation.

Applications
Aerospace
Medical Equipment
Automation & Robotics
Automotive
Semiconductor & Electronics Parts
Hydraulic & Pneumatic Components
Optical Instrument
New Energy Equipment

Order Process

Frequently Asked Questions
Can I customize hole positions and outer shape?
Yes, we can machine completely according to your drawings, adjusting hole arrays, outlines, and thickness.
What is the working temperature for FR4 G10 plate?
Continuous operating temperature can reach up to 130°C with good thermal stability.
Do you provide anti-static FR4 material?
Yes, anti-static FR4 fiberglass board is optional for ESD-sensitive working scenarios.